1c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen/* Copyright (C) 2010 The Android Open Source Project 244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Licensed under the Apache License, Version 2.0 (the "License"); 444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * you may not use this file except in compliance with the License. 544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * You may obtain a copy of the License at 644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * http://www.apache.org/licenses/LICENSE-2.0 844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Unless required by applicable law or agreed to in writing, software 1044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * distributed under the License is distributed on an "AS IS" BASIS, 1144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * See the License for the specific language governing permissions and 1344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * limitations under the License. 1444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 1544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 1644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenpackage android.widget; 1744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 18c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohenimport java.lang.ref.WeakReference; 19c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen 20a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.animation.ObjectAnimator; 21e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guyimport android.animation.PropertyValuesHolder; 2244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.content.Context; 2326f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohenimport android.content.res.TypedArray; 2432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.Bitmap; 25839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohenimport android.graphics.BlurMaskFilter; 2632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.Canvas; 2732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.Matrix; 2832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.Paint; 2932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.PorterDuff; 3032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.PorterDuffXfermode; 3144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.graphics.Rect; 329b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohenimport android.graphics.RectF; 33d51bbb5b56446519db88f49f2682da782b0069acAdam Cohenimport android.graphics.Region; 34839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohenimport android.graphics.TableMaskFilter; 3548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganovimport android.os.Bundle; 3644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.util.AttributeSet; 3744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.util.Log; 38a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohenimport android.view.InputDevice; 3944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.MotionEvent; 4044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.VelocityTracker; 4144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.View; 4244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.ViewConfiguration; 4344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.ViewGroup; 448a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 458a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 46b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohenimport android.view.animation.LinearInterpolator; 4744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.widget.RemoteViews.RemoteView; 4844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 4944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen@RemoteView 5044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen/** 5144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * A view that displays its children in a stack and allows users to discretely swipe 5244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * through the children. 5344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 5444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenpublic class StackView extends AdapterViewAnimator { 5544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private final String TAG = "StackView"; 5644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 5844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Default animation parameters 5944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 60e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy private static final int DEFAULT_ANIMATION_DURATION = 400; 61e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy private static final int MINIMUM_ANIMATION_DURATION = 50; 62c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen private static final int STACK_RELAYOUT_DURATION = 100; 6344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 6444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 65839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Parameters effecting the perspective visuals 66839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 67026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen private static final float PERSPECTIVE_SHIFT_FACTOR_Y = 0.1f; 68026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen private static final float PERSPECTIVE_SHIFT_FACTOR_X = 0.1f; 69026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 7036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private float mPerspectiveShiftX; 7136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private float mPerspectiveShiftY; 7236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private float mNewPerspectiveShiftX; 7336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private float mNewPerspectiveShiftY; 7436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 75e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"FieldCanBeLocal"}) 7678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen private static final float PERSPECTIVE_SCALE_FACTOR = 0f; 77839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 78839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 79839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Represent the two possible stack modes, one where items slide up, and the other 80839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * where items slide down. The perspective is also inverted between these two modes. 81839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 82839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int ITEMS_SLIDE_UP = 0; 83839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int ITEMS_SLIDE_DOWN = 1; 84839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 85839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 8644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * These specify the different gesture states 8744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 885b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_NONE = 0; 895b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_SLIDE_UP = 1; 905b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_SLIDE_DOWN = 2; 9144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 9244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 9344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Specifies how far you need to swipe (up or down) before it 9444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * will be consider a completed gesture when you lift your finger 9544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 96a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen private static final float SWIPE_THRESHOLD_RATIO = 0.2f; 97a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen 98a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen /** 99a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen * Specifies the total distance, relative to the size of the stack, 100a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen * that views will be slid, either up or down 101a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen */ 1025b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final float SLIDE_UP_RATIO = 0.7f; 10344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 10444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 10544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Sentinel value for no current active pointer. 10644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Used by {@link #mActivePointerId}. 10744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 10844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private static final int INVALID_POINTER = -1; 10944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 11044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 111839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Number of active views in the stack. One fewer view is actually visible, as one is hidden. 112839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 113839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int NUM_ACTIVE_VIEWS = 5; 114839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 115dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private static final int FRAME_PADDING = 4; 116839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 117e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Rect mTouchRect = new Rect(); 118e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy 11926e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen private static final int MIN_TIME_BETWEEN_INTERACTION_AND_AUTOADVANCE = 5000; 12026e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen 1214725a90e8ea82799fb88fd27db5bb16969ac5abfRomain Guy private static final long MIN_TIME_BETWEEN_SCROLLS = 100; 122a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen 123839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 12444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * These variables are all related to the current state of touch interaction 12544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * with the stack 12644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 12744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private float mInitialY; 12844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private float mInitialX; 12944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mActivePointerId; 13044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mYVelocity = 0; 13144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mSwipeGestureType = GESTURE_NONE; 132dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private int mSlideAmount; 13344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mSwipeThreshold; 13444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mTouchSlop; 13544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mMaximumVelocity; 13644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private VelocityTracker mVelocityTracker; 1373352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen private boolean mTransitionIsSetup = false; 13826f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen private int mResOutColor; 13926f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen private int mClickColor; 14044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 1419b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private static HolographicHelper sHolographicHelper; 14232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private ImageView mHighlight; 1438baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private ImageView mClickFeedback; 1448baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private boolean mClickFeedbackIsValid = false; 14532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private StackSlider mStackSlider; 14644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private boolean mFirstLayoutHappened = false; 14726e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen private long mLastInteractionTime = 0; 148a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen private long mLastScrollTime; 149839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private int mStackMode; 150dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private int mFramePadding; 1510ac116b688380489c3690f6f65b282990c221f17Adam Cohen private final Rect stackInvalidateRect = new Rect(); 15244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 153abc8b50a26282689c66562cf619563744d2855d1Winson Chung /** 154abc8b50a26282689c66562cf619563744d2855d1Winson Chung * {@inheritDoc} 155abc8b50a26282689c66562cf619563744d2855d1Winson Chung */ 15644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public StackView(Context context) { 15726f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen this(context, null); 15844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 15944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 160abc8b50a26282689c66562cf619563744d2855d1Winson Chung /** 161abc8b50a26282689c66562cf619563744d2855d1Winson Chung * {@inheritDoc} 162abc8b50a26282689c66562cf619563744d2855d1Winson Chung */ 16344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public StackView(Context context, AttributeSet attrs) { 16426f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen this(context, attrs, com.android.internal.R.attr.stackViewStyle); 16526f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen } 16626f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 167abc8b50a26282689c66562cf619563744d2855d1Winson Chung /** 168abc8b50a26282689c66562cf619563744d2855d1Winson Chung * {@inheritDoc} 169abc8b50a26282689c66562cf619563744d2855d1Winson Chung */ 17026f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen public StackView(Context context, AttributeSet attrs, int defStyleAttr) { 17126f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen super(context, attrs, defStyleAttr); 17226f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen TypedArray a = context.obtainStyledAttributes(attrs, 17326f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen com.android.internal.R.styleable.StackView, defStyleAttr, 0); 17426f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 17526f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mResOutColor = a.getColor( 17626f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen com.android.internal.R.styleable.StackView_resOutColor, 0); 17726f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mClickColor = a.getColor( 17826f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen com.android.internal.R.styleable.StackView_clickColor, 0); 17926f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 18026f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen a.recycle(); 18144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen initStackView(); 18244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 18344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 18444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void initStackView() { 18596d8d56302da81b24333b204e6d7f15064538036Adam Cohen configureViewAnimator(NUM_ACTIVE_VIEWS, 1); 18644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen setStaticTransformationsEnabled(true); 18744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final ViewConfiguration configuration = ViewConfiguration.get(getContext()); 188b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mTouchSlop = configuration.getScaledTouchSlop(); 18944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 19044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 19132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 19232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight = new ImageView(getContext()); 19332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.setLayoutParams(new LayoutParams(mHighlight)); 19432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen addViewInLayout(mHighlight, -1, new LayoutParams(mHighlight)); 1958baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 1968baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback = new ImageView(getContext()); 1978baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setLayoutParams(new LayoutParams(mClickFeedback)); 1988baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen addViewInLayout(mClickFeedback, -1, new LayoutParams(mClickFeedback)); 1998baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(INVISIBLE); 2008baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 20132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider = new StackSlider(); 20232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 2039b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (sHolographicHelper == null) { 204dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen sHolographicHelper = new HolographicHelper(mContext); 20532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 2069b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen setClipChildren(false); 2079b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen setClipToPadding(false); 2081480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen 209839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // This sets the form of the StackView, which is currently to have the perspective-shifted 210839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // views above the active view, and have items slide down when sliding out. The opposite is 211839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // available by using ITEMS_SLIDE_UP. 212839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mStackMode = ITEMS_SLIDE_DOWN; 213839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 2141480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen // This is a flag to indicate the the stack is loading for the first time 2151480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen mWhichChild = -1; 216dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 217dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen // Adjust the frame padding based on the density, since the highlight changes based 218dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen // on the density 219dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen final float density = mContext.getResources().getDisplayMetrics().density; 220dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen mFramePadding = (int) Math.ceil(density * FRAME_PADDING); 22144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 22244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 22344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 22444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Animate the views between different relative indexes within the {@link AdapterViewAnimator} 22544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 22678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen void transformViewForTransition(int fromIndex, int toIndex, final View view, boolean animate) { 22778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (!animate) { 22878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelSliderAnimator(); 22978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen view.setRotationX(0f); 23078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen LayoutParams lp = (LayoutParams) view.getLayoutParams(); 23178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen lp.setVerticalOffset(0); 23278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen lp.setHorizontalOffset(0); 23369d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen } 23469d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen 235502045849f760f018f662d752020aef32d4cecd9Adam Cohen if (fromIndex == -1 && toIndex == getNumActiveViews() -1) { 236502045849f760f018f662d752020aef32d4cecd9Adam Cohen transformViewAtIndex(toIndex, view, false); 237b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen view.setVisibility(VISIBLE); 238c798b6688aa1076de96a70c2add20dcf745df800Adam Cohen view.setAlpha(1.0f); 23996d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (fromIndex == 0 && toIndex == 1) { 24044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Slide item in 24178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelSliderAnimator(); 24244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen view.setVisibility(VISIBLE); 24332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 244839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration = Math.round(mStackSlider.getDurationForNeutralPosition(mYVelocity)); 245b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 24669d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen animationSlider.setView(view); 24778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 24878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (animate) { 24978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen PropertyValuesHolder slideInY = PropertyValuesHolder.ofFloat("YProgress", 0.0f); 25078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen PropertyValuesHolder slideInX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 25178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator slideIn = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 25278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideInX, slideInY); 25378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideIn.setDuration(duration); 25478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideIn.setInterpolator(new LinearInterpolator()); 25578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).setSliderAnimator(slideIn); 25678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideIn.start(); 25778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else { 25878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen animationSlider.setYProgress(0f); 25978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen animationSlider.setXProgress(0f); 26078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 26196d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (fromIndex == 1 && toIndex == 0) { 26244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Slide item out 26378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelSliderAnimator(); 264839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration = Math.round(mStackSlider.getDurationForOffscreenPosition(mYVelocity)); 26544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 266b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 26769d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen animationSlider.setView(view); 26878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (animate) { 26978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen PropertyValuesHolder slideOutY = PropertyValuesHolder.ofFloat("YProgress", 1.0f); 27078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen PropertyValuesHolder slideOutX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 27178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator slideOut = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 27278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideOutX, slideOutY); 27378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideOut.setDuration(duration); 27478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideOut.setInterpolator(new LinearInterpolator()); 27578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).setSliderAnimator(slideOut); 27678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideOut.start(); 27778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else { 27878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen animationSlider.setYProgress(1.0f); 27978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen animationSlider.setXProgress(0f); 28078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 28169d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen } else if (toIndex == 0) { 28244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Make sure this view that is "waiting in the wings" is invisible 28344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen view.setAlpha(0.0f); 284b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen view.setVisibility(INVISIBLE); 28578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else if ((fromIndex == 0 || fromIndex == 1) && toIndex > 1) { 28669d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen view.setVisibility(VISIBLE); 28769d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen view.setAlpha(1.0f); 28878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen view.setRotationX(0f); 28978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen LayoutParams lp = (LayoutParams) view.getLayoutParams(); 29078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen lp.setVerticalOffset(0); 29178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen lp.setHorizontalOffset(0); 292c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen } else if (fromIndex == -1) { 293c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen view.setAlpha(1.0f); 294c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen view.setVisibility(VISIBLE); 29544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } else if (toIndex == -1) { 29678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (animate) { 297c798b6688aa1076de96a70c2add20dcf745df800Adam Cohen postDelayed(new Runnable() { 298c798b6688aa1076de96a70c2add20dcf745df800Adam Cohen public void run() { 299c798b6688aa1076de96a70c2add20dcf745df800Adam Cohen view.setAlpha(0); 300c798b6688aa1076de96a70c2add20dcf745df800Adam Cohen } 301c798b6688aa1076de96a70c2add20dcf745df800Adam Cohen }, STACK_RELAYOUT_DURATION); 30278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else { 30378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen view.setAlpha(0f); 30478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 30544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 306839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 307839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // Implement the faked perspective 308839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (toIndex != -1) { 30978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen transformViewAtIndex(toIndex, view, animate); 310f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 311f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 312839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 31336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private void transformViewAtIndex(int index, final View view, boolean animate) { 31436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float maxPerspectiveShiftY = mPerspectiveShiftY; 31536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float maxPerspectiveShiftX = mPerspectiveShiftX; 316026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 317c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (mStackMode == ITEMS_SLIDE_DOWN) { 318c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen index = mMaxNumActiveViews - index - 1; 319c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (index == mMaxNumActiveViews - 1) index--; 320c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen } else { 321c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen index--; 322c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (index < 0) index++; 323c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen } 324026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 325026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float r = (index * 1.0f) / (mMaxNumActiveViews - 2); 326026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 32736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float scale = 1 - PERSPECTIVE_SCALE_FACTOR * (1 - r); 328026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 329c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen float perspectiveTranslationY = r * maxPerspectiveShiftY; 330c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen float scaleShiftCorrectionY = (scale - 1) * 331026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen (getMeasuredHeight() * (1 - PERSPECTIVE_SHIFT_FACTOR_Y) / 2.0f); 33236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float transY = perspectiveTranslationY + scaleShiftCorrectionY; 333026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 334026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float perspectiveTranslationX = (1 - r) * maxPerspectiveShiftX; 335026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float scaleShiftCorrectionX = (1 - scale) * 336026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen (getMeasuredWidth() * (1 - PERSPECTIVE_SHIFT_FACTOR_X) / 2.0f); 33736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float transX = perspectiveTranslationX + scaleShiftCorrectionX; 33836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 339c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen // If this view is currently being animated for a certain position, we need to cancel 34069d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen // this animation so as not to interfere with the new transformation. 34178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (view instanceof StackFrame) { 34278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelTransformAnimator(); 34369d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen } 34469d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen 34536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (animate) { 34636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen PropertyValuesHolder translationX = PropertyValuesHolder.ofFloat("translationX", transX); 34736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen PropertyValuesHolder translationY = PropertyValuesHolder.ofFloat("translationY", transY); 34836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen PropertyValuesHolder scalePropX = PropertyValuesHolder.ofFloat("scaleX", scale); 34936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen PropertyValuesHolder scalePropY = PropertyValuesHolder.ofFloat("scaleY", scale); 35036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 35136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(view, scalePropX, scalePropY, 35236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen translationY, translationX); 353c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen oa.setDuration(STACK_RELAYOUT_DURATION); 35478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (view instanceof StackFrame) { 35578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).setTransformAnimator(oa); 35678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 35736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen oa.start(); 35836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } else { 35936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen view.setTranslationX(transX); 36036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen view.setTranslationY(transY); 36136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen view.setScaleX(scale); 36236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen view.setScaleY(scale); 36336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 364026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen } 365026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 3663352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen private void setupStackSlider(View v, int mode) { 3673352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setMode(mode); 3683352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 36926f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mHighlight.setImageBitmap(sHolographicHelper.createResOutline(v, mResOutColor)); 3703352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.setRotation(v.getRotation()); 3713352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.setTranslationY(v.getTranslationY()); 372026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen mHighlight.setTranslationX(v.getTranslationX()); 3733352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.bringToFront(); 3743352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen v.bringToFront(); 3753352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setView(v); 3763352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 3773352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen v.setVisibility(VISIBLE); 3783352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 3793352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 3803352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 3810e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 3820e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@inheritDoc} 3830e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 3843352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @Override 3853352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @android.view.RemotableViewMethod 3863352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen public void showNext() { 3870ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (mSwipeGestureType != GESTURE_NONE) return; 3883352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (!mTransitionIsSetup) { 3893352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen View v = getViewAtRelativeIndex(1); 3903352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 3913352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, StackSlider.NORMAL_MODE); 3923352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setYProgress(0); 3933352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setXProgress(0); 3943352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 3953352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 3963352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen super.showNext(); 3973352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 3983352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 3990e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 4000e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@inheritDoc} 4010e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 4023352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @Override 4033352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @android.view.RemotableViewMethod 4043352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen public void showPrevious() { 4050ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (mSwipeGestureType != GESTURE_NONE) return; 4063352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (!mTransitionIsSetup) { 4073352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen View v = getViewAtRelativeIndex(0); 4083352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 4093352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, StackSlider.NORMAL_MODE); 4103352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setYProgress(1); 4113352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setXProgress(0); 4123352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4133352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4143352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen super.showPrevious(); 4153352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4163352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 41796d8d56302da81b24333b204e6d7f15064538036Adam Cohen @Override 418ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen void showOnly(int childIndex, boolean animate) { 419ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen super.showOnly(childIndex, animate); 42096d8d56302da81b24333b204e6d7f15064538036Adam Cohen 42196d8d56302da81b24333b204e6d7f15064538036Adam Cohen // Here we need to make sure that the z-order of the children is correct 4223352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen for (int i = mCurrentWindowEnd; i >= mCurrentWindowStart; i--) { 42396d8d56302da81b24333b204e6d7f15064538036Adam Cohen int index = modulo(i, getWindowSize()); 424d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen ViewAndMetaData vm = mViewsMap.get(index); 425d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen if (vm != null) { 4260ac116b688380489c3690f6f65b282990c221f17Adam Cohen View v = mViewsMap.get(index).view; 4270ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (v != null) v.bringToFront(); 4280ac116b688380489c3690f6f65b282990c221f17Adam Cohen } 42996d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 43078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (mHighlight != null) { 43178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen mHighlight.bringToFront(); 43278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 4333352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mTransitionIsSetup = false; 4348baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedbackIsValid = false; 4358baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4368baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 4378baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void updateClickFeedback() { 4388baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (!mClickFeedbackIsValid) { 4399c295482dd739e80dd49ea0dd3102ad6be6742ddAdam Cohen View v = getViewAtRelativeIndex(1); 4408baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (v != null) { 44126f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mClickFeedback.setImageBitmap( 44226f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen sHolographicHelper.createClickOutline(v, mClickColor)); 4438baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setTranslationX(v.getTranslationX()); 4448baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setTranslationY(v.getTranslationY()); 4458baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4468baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedbackIsValid = true; 4478baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4488baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4498baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 4508baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen @Override 4518baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void showTapFeedback(View v) { 4528baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen updateClickFeedback(); 4538baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(VISIBLE); 4548baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.bringToFront(); 4558baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen invalidate(); 4568baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4578baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 4588baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen @Override 4598baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void hideTapFeedback(View v) { 4608baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(INVISIBLE); 4618baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen invalidate(); 46296d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 46396d8d56302da81b24333b204e6d7f15064538036Adam Cohen 464f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen private void updateChildTransforms() { 46596d8d56302da81b24333b204e6d7f15064538036Adam Cohen for (int i = 0; i < getNumActiveViews(); i++) { 466f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen View v = getViewAtRelativeIndex(i); 467f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen if (v != null) { 46836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen transformViewAtIndex(i, v, false); 469f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 470839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 47144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 47244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 47378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen private static class StackFrame extends FrameLayout { 47478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen WeakReference<ObjectAnimator> transformAnimator; 47578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen WeakReference<ObjectAnimator> sliderAnimator; 47678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 47778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen public StackFrame(Context context) { 47878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen super(context); 47978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 48078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 48178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen void setTransformAnimator(ObjectAnimator oa) { 48278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen transformAnimator = new WeakReference<ObjectAnimator>(oa); 48378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 48478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 48578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen void setSliderAnimator(ObjectAnimator oa) { 48678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen sliderAnimator = new WeakReference<ObjectAnimator>(oa); 48778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 48878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 48978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen boolean cancelTransformAnimator() { 49078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (transformAnimator != null) { 49178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator oa = transformAnimator.get(); 49278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (oa != null) { 49378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen oa.cancel(); 49478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen return true; 49578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 49678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 49778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen return false; 49878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 49978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 50078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen boolean cancelSliderAnimator() { 50178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (sliderAnimator != null) { 50278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator oa = sliderAnimator.get(); 50378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (oa != null) { 50478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen oa.cancel(); 50578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen return true; 50678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 50778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 50878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen return false; 50978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 51078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 51178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 512dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen @Override 513dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen FrameLayout getFrameForChild() { 51478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen StackFrame fl = new StackFrame(mContext); 515dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen fl.setPadding(mFramePadding, mFramePadding, mFramePadding, mFramePadding); 516dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen return fl; 517dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen } 518dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 51944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 52044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Apply any necessary tranforms for the child that is being added. 52144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 52244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void applyTransformForChildAtIndex(View child, int relativeIndex) { 52344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 52444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 52544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 5269b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen protected void dispatchDraw(Canvas canvas) { 527321aa2b0258691c55843dff919eb2705d069167aAdam Cohen boolean expandClipRegion = false; 528321aa2b0258691c55843dff919eb2705d069167aAdam Cohen 5290ac116b688380489c3690f6f65b282990c221f17Adam Cohen canvas.getClipBounds(stackInvalidateRect); 530d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen final int childCount = getChildCount(); 531d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen for (int i = 0; i < childCount; i++) { 532e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen final View child = getChildAt(i); 533e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen LayoutParams lp = (LayoutParams) child.getLayoutParams(); 534e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen if ((lp.horizontalOffset == 0 && lp.verticalOffset == 0) || 535e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen child.getAlpha() == 0f || child.getVisibility() != VISIBLE) { 536e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen lp.resetInvalidateRect(); 537e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen } 538321aa2b0258691c55843dff919eb2705d069167aAdam Cohen Rect childInvalidateRect = lp.getInvalidateRect(); 539321aa2b0258691c55843dff919eb2705d069167aAdam Cohen if (!childInvalidateRect.isEmpty()) { 540321aa2b0258691c55843dff919eb2705d069167aAdam Cohen expandClipRegion = true; 541321aa2b0258691c55843dff919eb2705d069167aAdam Cohen stackInvalidateRect.union(childInvalidateRect); 542321aa2b0258691c55843dff919eb2705d069167aAdam Cohen } 543321aa2b0258691c55843dff919eb2705d069167aAdam Cohen } 544321aa2b0258691c55843dff919eb2705d069167aAdam Cohen 545321aa2b0258691c55843dff919eb2705d069167aAdam Cohen // We only expand the clip bounds if necessary. 546321aa2b0258691c55843dff919eb2705d069167aAdam Cohen if (expandClipRegion) { 547321aa2b0258691c55843dff919eb2705d069167aAdam Cohen canvas.save(Canvas.CLIP_SAVE_FLAG); 548321aa2b0258691c55843dff919eb2705d069167aAdam Cohen canvas.clipRect(stackInvalidateRect, Region.Op.UNION); 549321aa2b0258691c55843dff919eb2705d069167aAdam Cohen super.dispatchDraw(canvas); 550321aa2b0258691c55843dff919eb2705d069167aAdam Cohen canvas.restore(); 551321aa2b0258691c55843dff919eb2705d069167aAdam Cohen } else { 552321aa2b0258691c55843dff919eb2705d069167aAdam Cohen super.dispatchDraw(canvas); 55344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 5549b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 55544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5569b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private void onLayout() { 55744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (!mFirstLayoutHappened) { 55844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mFirstLayoutHappened = true; 55953838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen updateChildTransforms(); 56044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 56136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 562c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen final int newSlideAmount = Math.round(SLIDE_UP_RATIO * getMeasuredHeight()); 563c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen if (mSlideAmount != newSlideAmount) { 564c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen mSlideAmount = newSlideAmount; 565c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen mSwipeThreshold = Math.round(SWIPE_THRESHOLD_RATIO * newSlideAmount); 566c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen } 567c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen 56836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (Float.compare(mPerspectiveShiftY, mNewPerspectiveShiftY) != 0 || 56936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen Float.compare(mPerspectiveShiftX, mNewPerspectiveShiftX) != 0) { 57078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 57136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mPerspectiveShiftY = mNewPerspectiveShiftY; 57236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mPerspectiveShiftX = mNewPerspectiveShiftX; 57353838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen updateChildTransforms(); 57436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 57544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 57644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 577a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen @Override 578a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen public boolean onGenericMotionEvent(MotionEvent event) { 579a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 580a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen switch (event.getAction()) { 581a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen case MotionEvent.ACTION_SCROLL: { 582a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 583a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen if (vscroll < 0) { 584a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen pacedScroll(false); 585a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen return true; 586a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } else if (vscroll > 0) { 587a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen pacedScroll(true); 588a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen return true; 589a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 590a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 591a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 592a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 593a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen return super.onGenericMotionEvent(event); 594a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 595a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen 596a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen // This ensures that the frequency of stack flips caused by scrolls is capped 597a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen private void pacedScroll(boolean up) { 598a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen long timeSinceLastScroll = System.currentTimeMillis() - mLastScrollTime; 599a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen if (timeSinceLastScroll > MIN_TIME_BETWEEN_SCROLLS) { 600a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen if (up) { 601a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen showPrevious(); 602a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } else { 603a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen showNext(); 604a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 605a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen mLastScrollTime = System.currentTimeMillis(); 606a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 607a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 608a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen 6090e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 6100e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@inheritDoc} 6110e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 61244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 61344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public boolean onInterceptTouchEvent(MotionEvent ev) { 61444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int action = ev.getAction(); 61544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen switch(action & MotionEvent.ACTION_MASK) { 61644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_DOWN: { 61744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mActivePointerId == INVALID_POINTER) { 61844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialX = ev.getX(); 61944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialY = ev.getY(); 62044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = ev.getPointerId(0); 62144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 62244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 62344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 62444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_MOVE: { 62544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 62644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerIndex == INVALID_POINTER) { 62744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // no data for our primary pointer, this shouldn't happen, log it 62844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Log.d(TAG, "Error: No data for our primary pointer."); 62944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return false; 63044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 63144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 63244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float deltaY = newY - mInitialY; 63344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 63432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen beginGestureIfNeeded(deltaY); 63544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 63644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 63744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_POINTER_UP: { 63844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen onSecondaryPointerUp(ev); 63944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 64044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 64144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_UP: 64244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_CANCEL: { 64344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 64444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 64544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 64644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 64744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 64844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return mSwipeGestureType != GESTURE_NONE; 64944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 65044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 65132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private void beginGestureIfNeeded(float deltaY) { 65232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if ((int) Math.abs(deltaY) > mTouchSlop && mSwipeGestureType == GESTURE_NONE) { 653c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen final int swipeGestureType = deltaY < 0 ? GESTURE_SLIDE_UP : GESTURE_SLIDE_DOWN; 65432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen cancelLongPress(); 65532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen requestDisallowInterceptTouchEvent(true); 65632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 657d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen if (mAdapter == null) return; 658ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen final int adapterCount = getCount(); 659d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen 660839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int activeIndex; 661839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 66296d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex = (swipeGestureType == GESTURE_SLIDE_DOWN) ? 0 : 1; 663839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 66496d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex = (swipeGestureType == GESTURE_SLIDE_DOWN) ? 1 : 0; 665839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 66632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 667c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen boolean endOfStack = mLoopViews && adapterCount == 1 && 668c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen ((mStackMode == ITEMS_SLIDE_UP && swipeGestureType == GESTURE_SLIDE_UP) || 669c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen (mStackMode == ITEMS_SLIDE_DOWN && swipeGestureType == GESTURE_SLIDE_DOWN)); 670c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen boolean beginningOfStack = mLoopViews && adapterCount == 1 && 671c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen ((mStackMode == ITEMS_SLIDE_DOWN && swipeGestureType == GESTURE_SLIDE_UP) || 672c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen (mStackMode == ITEMS_SLIDE_UP && swipeGestureType == GESTURE_SLIDE_DOWN)); 673c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen 6743352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen int stackMode; 675c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (mLoopViews && !beginningOfStack && !endOfStack) { 6763352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.NORMAL_MODE; 677c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen } else if (mCurrentWindowStartUnbounded + activeIndex == -1 || beginningOfStack) { 67896d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex++; 6793352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.BEGINNING_OF_STACK_MODE; 680c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen } else if (mCurrentWindowStartUnbounded + activeIndex == adapterCount - 1 || endOfStack) { 6813352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.END_OF_STACK_MODE; 6823d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else { 6833352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.NORMAL_MODE; 68432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 6853d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 6863352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mTransitionIsSetup = stackMode == StackSlider.NORMAL_MODE; 6873352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 6883d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen View v = getViewAtRelativeIndex(activeIndex); 6893d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (v == null) return; 6903d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 6913352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, stackMode); 6923d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 6933d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // We only register this gesture if we've made it this far without a problem 6943d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mSwipeGestureType = swipeGestureType; 695a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen cancelHandleClick(); 69632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 69732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 69832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 6990e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 7000e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@inheritDoc} 7010e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 70244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 70344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public boolean onTouchEvent(MotionEvent ev) { 704a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen super.onTouchEvent(ev); 705a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 70644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int action = ev.getAction(); 70744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 70844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerIndex == INVALID_POINTER) { 70944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // no data for our primary pointer, this shouldn't happen, log it 71044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Log.d(TAG, "Error: No data for our primary pointer."); 71144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return false; 71244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 71344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 71444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 71532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float newX = ev.getX(pointerIndex); 71644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float deltaY = newY - mInitialY; 71732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float deltaX = newX - mInitialX; 71844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker == null) { 71944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker = VelocityTracker.obtain(); 72044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 72144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.addMovement(ev); 72244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 72344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen switch (action & MotionEvent.ACTION_MASK) { 72444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_MOVE: { 72532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen beginGestureIfNeeded(deltaY); 72632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 727dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float rx = deltaX / (mSlideAmount * 1.0f); 72832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (mSwipeGestureType == GESTURE_SLIDE_DOWN) { 729dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float r = (deltaY - mTouchSlop * 1.0f) / mSlideAmount * 1.0f; 730839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN) r = 1 - r; 73132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setYProgress(1 - r); 73232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setXProgress(rx); 73332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return true; 73432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_UP) { 735dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float r = -(deltaY + mTouchSlop * 1.0f) / mSlideAmount * 1.0f; 736839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN) r = 1 - r; 73732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setYProgress(r); 73832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setXProgress(rx); 73932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return true; 74044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 74144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 74244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 74344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_UP: { 74444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen handlePointerUp(ev); 74544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 74644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 74744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_POINTER_UP: { 74844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen onSecondaryPointerUp(ev); 74944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 75044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 75144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_CANCEL: { 75244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 75344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 75444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 75544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 75644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 75744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return true; 75844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 75944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 76044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void onSecondaryPointerUp(MotionEvent ev) { 76144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final int activePointerIndex = ev.getActionIndex(); 76244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final int pointerId = ev.getPointerId(activePointerIndex); 76344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerId == mActivePointerId) { 76444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 76596d8d56302da81b24333b204e6d7f15064538036Adam Cohen int activeViewIndex = (mSwipeGestureType == GESTURE_SLIDE_DOWN) ? 0 : 1; 76644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 76744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View v = getViewAtRelativeIndex(activeViewIndex); 76844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (v == null) return; 76944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 77044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Our primary pointer has gone up -- let's see if we can find 77144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // another pointer on the view. If so, then we should replace 77244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // our primary pointer with this new pointer and adjust things 77344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // so that the view doesn't jump 77444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int index = 0; index < ev.getPointerCount(); index++) { 77544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (index != activePointerIndex) { 77644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 77744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float x = ev.getX(index); 77844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float y = ev.getY(index); 77944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 780e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mTouchRect.set(v.getLeft(), v.getTop(), v.getRight(), v.getBottom()); 781e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy if (mTouchRect.contains(Math.round(x), Math.round(y))) { 78244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float oldX = ev.getX(activePointerIndex); 78344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float oldY = ev.getY(activePointerIndex); 78444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 78544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // adjust our frame of reference to avoid a jump 78644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialY += (y - oldY); 78744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialX += (x - oldX); 78844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 78944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = ev.getPointerId(index); 79044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker != null) { 79144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.clear(); 79244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 79344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // ok, we're good, we found a new pointer which is touching the active view 79444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return; 79544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 79644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 79744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 79844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // if we made it this far, it means we didn't find a satisfactory new pointer :(, 7993d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // so end the gesture 80044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen handlePointerUp(ev); 80144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 80244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 80344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 80444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void handlePointerUp(MotionEvent ev) { 80544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 80644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 80744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int deltaY = (int) (newY - mInitialY); 80826e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen mLastInteractionTime = System.currentTimeMillis(); 80944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 8103d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mVelocityTracker != null) { 8113d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 8123d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mYVelocity = (int) mVelocityTracker.getYVelocity(mActivePointerId); 8133d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 81444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 81544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker != null) { 81644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.recycle(); 81744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker = null; 81844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 81944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 8203d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (deltaY > mSwipeThreshold && mSwipeGestureType == GESTURE_SLIDE_DOWN 8213d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mStackSlider.mMode == StackSlider.NORMAL_MODE) { 8220ac116b688380489c3690f6f65b282990c221f17Adam Cohen // We reset the gesture variable, because otherwise we will ignore showPrevious() / 8230ac116b688380489c3690f6f65b282990c221f17Adam Cohen // showNext(); 8240ac116b688380489c3690f6f65b282990c221f17Adam Cohen mSwipeGestureType = GESTURE_NONE; 8250ac116b688380489c3690f6f65b282990c221f17Adam Cohen 82644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Swipe threshold exceeded, swipe down 827839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 828839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen showPrevious(); 82996d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 83096d8d56302da81b24333b204e6d7f15064538036Adam Cohen showNext(); 831839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 83232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.bringToFront(); 8333d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else if (deltaY < -mSwipeThreshold && mSwipeGestureType == GESTURE_SLIDE_UP 8343d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mStackSlider.mMode == StackSlider.NORMAL_MODE) { 8350ac116b688380489c3690f6f65b282990c221f17Adam Cohen // We reset the gesture variable, because otherwise we will ignore showPrevious() / 8360ac116b688380489c3690f6f65b282990c221f17Adam Cohen // showNext(); 8370ac116b688380489c3690f6f65b282990c221f17Adam Cohen mSwipeGestureType = GESTURE_NONE; 8380ac116b688380489c3690f6f65b282990c221f17Adam Cohen 83944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Swipe threshold exceeded, swipe up 840839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 841839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen showNext(); 84296d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 84396d8d56302da81b24333b204e6d7f15064538036Adam Cohen showPrevious(); 844839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 845839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 84632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.bringToFront(); 847839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_UP ) { 84844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Didn't swipe up far enough, snap back down 849839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration; 850839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float finalYProgress = (mStackMode == ITEMS_SLIDE_DOWN) ? 1 : 0; 851839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP || mStackSlider.mMode != StackSlider.NORMAL_MODE) { 852839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForNeutralPosition()); 853839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 854839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForOffscreenPosition()); 855839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 85632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 857b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 8582794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackY = PropertyValuesHolder.ofFloat("YProgress", finalYProgress); 8592794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 8602794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 861839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen snapBackX, snapBackY); 8622794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(duration); 863839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.setInterpolator(new LinearInterpolator()); 864839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.start(); 86532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_DOWN) { 86644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Didn't swipe down far enough, snap back up 867839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float finalYProgress = (mStackMode == ITEMS_SLIDE_DOWN) ? 0 : 1; 868839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration; 869839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN || mStackSlider.mMode != StackSlider.NORMAL_MODE) { 870839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForNeutralPosition()); 871839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 872839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForOffscreenPosition()); 873839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 8743d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 875b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 8762794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackY = 8772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder.ofFloat("YProgress",finalYProgress); 8782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 8792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 880839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen snapBackX, snapBackY); 8812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(duration); 882839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.start(); 88344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 88444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 88544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 88644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 88732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 88832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 88932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private class StackSlider { 89032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen View mView; 89132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float mYProgress; 89232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float mXProgress; 89332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 8943d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int NORMAL_MODE = 0; 8953d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int BEGINNING_OF_STACK_MODE = 1; 8963d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int END_OF_STACK_MODE = 2; 8973d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 8983d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen int mMode = NORMAL_MODE; 8993d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 900b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public StackSlider() { 901b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 902b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 903b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public StackSlider(StackSlider copy) { 904b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mView = copy.mView; 905b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mYProgress = copy.mYProgress; 906b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mXProgress = copy.mXProgress; 9073d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mMode = copy.mMode; 908b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 909b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 91032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float cubic(float r) { 911839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (float) (Math.pow(2 * r - 1, 3) + 1) / 2.0f; 91232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 91332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 91432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float highlightAlphaInterpolator(float r) { 91532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float pivot = 0.4f; 91632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (r < pivot) { 917839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return 0.85f * cubic(r / pivot); 91832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else { 919839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return 0.85f * cubic(1 - (r - pivot) / (1 - pivot)); 92032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 92132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 92232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 92332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float viewAlphaInterpolator(float r) { 92432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float pivot = 0.3f; 92532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (r > pivot) { 926839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (r - pivot) / (1 - pivot); 92732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else { 92832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return 0; 92932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 93032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 93132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 932b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen private float rotationInterpolator(float r) { 933b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen float pivot = 0.2f; 934b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen if (r < pivot) { 935b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return 0; 936b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } else { 937839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (r - pivot) / (1 - pivot); 938b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 939b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 940b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 94132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen void setView(View v) { 94232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mView = v; 94332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 94432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 94532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen public void setYProgress(float r) { 94632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen // enforce r between 0 and 1 94732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen r = Math.min(1.0f, r); 94832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen r = Math.max(0, r); 94932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 95032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mYProgress = r; 951a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen if (mView == null) return; 952a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen 95332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 95432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams highlightLp = (LayoutParams) mHighlight.getLayoutParams(); 95532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 956839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int stackDirection = (mStackMode == ITEMS_SLIDE_UP) ? 1 : -1; 957839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 958488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen // We need to prevent any clipping issues which may arise by setting a layer type. 959488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen // This doesn't come for free however, so we only want to enable it when required. 960488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen if (Float.compare(0f, mYProgress) != 0 && Float.compare(1.0f, mYProgress) != 0) { 961488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen if (mView.getLayerType() == LAYER_TYPE_NONE) { 962488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen mView.setLayerType(LAYER_TYPE_HARDWARE, null); 963488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen } 964488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen } else { 965488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen if (mView.getLayerType() != LAYER_TYPE_NONE) { 966488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen mView.setLayerType(LAYER_TYPE_NONE, null); 967488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen } 968488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen } 969488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen 9703d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen switch (mMode) { 9713d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen case NORMAL_MODE: 972dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(-r * stackDirection * mSlideAmount)); 973dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(-r * stackDirection * mSlideAmount)); 9743d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 9753d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 976839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float alpha = viewAlphaInterpolator(1 - r); 9773d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 9783d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // We make sure that views which can't be seen (have 0 alpha) are also invisible 9793d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // so that they don't interfere with click events. 9803d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mView.getAlpha() == 0 && alpha != 0 && mView.getVisibility() != VISIBLE) { 9813d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setVisibility(VISIBLE); 9823d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else if (alpha == 0 && mView.getAlpha() != 0 9833d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mView.getVisibility() == VISIBLE) { 9843d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setVisibility(INVISIBLE); 9853d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 986b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 9873d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setAlpha(alpha); 988839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mView.setRotationX(stackDirection * 90.0f * rotationInterpolator(r)); 989839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mHighlight.setRotationX(stackDirection * 90.0f * rotationInterpolator(r)); 9903d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 99196d8d56302da81b24333b204e6d7f15064538036Adam Cohen case END_OF_STACK_MODE: 992839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen r = r * 0.2f; 993dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(-stackDirection * r * mSlideAmount)); 994dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(-stackDirection * r * mSlideAmount)); 9953d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 9963d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 99796d8d56302da81b24333b204e6d7f15064538036Adam Cohen case BEGINNING_OF_STACK_MODE: 998839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen r = (1-r) * 0.2f; 999dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(stackDirection * r * mSlideAmount)); 1000dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(stackDirection * r * mSlideAmount)); 10013d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 10023d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 1003b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 100432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 100532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 100632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen public void setXProgress(float r) { 100732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen // enforce r between 0 and 1 10083d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r = Math.min(2.0f, r); 10093d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r = Math.max(-2.0f, r); 101032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 101132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mXProgress = r; 101232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1013a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen if (mView == null) return; 101432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 101532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams highlightLp = (LayoutParams) mHighlight.getLayoutParams(); 101632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 10173d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r *= 0.2f; 1018dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setHorizontalOffset(Math.round(r * mSlideAmount)); 1019dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setHorizontalOffset(Math.round(r * mSlideAmount)); 102032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 102132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 10223d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen void setMode(int mode) { 10233d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mMode = mode; 10243d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10253d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 10263d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen float getDurationForNeutralPosition() { 1027839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(false, 0); 10283d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10293d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 10303d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen float getDurationForOffscreenPosition() { 1031839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(true, 0); 1032839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1033839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1034839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float getDurationForNeutralPosition(float velocity) { 1035839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(false, velocity); 1036839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1037839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1038839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float getDurationForOffscreenPosition(float velocity) { 1039839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(true, velocity); 10403d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10413d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 1042839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private float getDuration(boolean invert, float velocity) { 10433d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mView != null) { 10443d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 10453d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 1046839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float d = (float) Math.sqrt(Math.pow(viewLp.horizontalOffset, 2) + 1047839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen Math.pow(viewLp.verticalOffset, 2)); 1048dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float maxd = (float) Math.sqrt(Math.pow(mSlideAmount, 2) + 1049dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen Math.pow(0.4f * mSlideAmount, 2)); 1050839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1051839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (velocity == 0) { 1052839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (invert ? (1 - d / maxd) : d / maxd) * DEFAULT_ANIMATION_DURATION; 1053839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 1054839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float duration = invert ? d / Math.abs(velocity) : 1055839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen (maxd - d) / Math.abs(velocity); 1056839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (duration < MINIMUM_ANIMATION_DURATION || 1057839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration > DEFAULT_ANIMATION_DURATION) { 1058839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(invert, 0); 1059839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 1060839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return duration; 1061839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1062839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 10633d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10643d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen return 0; 10653d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10663d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 1067e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy // Used for animations 1068e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"UnusedDeclaration"}) 1069839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen public float getYProgress() { 107032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return mYProgress; 107132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 107232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1073e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy // Used for animations 1074e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"UnusedDeclaration"}) 1075839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen public float getXProgress() { 107632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return mXProgress; 107732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 107844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 107944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 10809b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams createOrReuseLayoutParams(View v) { 10819b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final ViewGroup.LayoutParams currentLp = v.getLayoutParams(); 10829b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (currentLp instanceof LayoutParams) { 10839b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams lp = (LayoutParams) currentLp; 10849b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen lp.setHorizontalOffset(0); 10859b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen lp.setVerticalOffset(0); 1086839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen lp.width = 0; 1087839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen lp.width = 0; 10889b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return lp; 10899b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 10909b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return new LayoutParams(v); 109132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 109232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 10939b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen @Override 10949b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1095ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen checkForAndHandleDataChanged(); 10969b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 10979b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final int childCount = getChildCount(); 10989b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen for (int i = 0; i < childCount; i++) { 10999b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final View child = getChildAt(i); 11009b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 11019b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int childRight = mPaddingLeft + child.getMeasuredWidth(); 11029b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int childBottom = mPaddingTop + child.getMeasuredHeight(); 11039b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams lp = (LayoutParams) child.getLayoutParams(); 11049b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 11059b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen child.layout(mPaddingLeft + lp.horizontalOffset, mPaddingTop + lp.verticalOffset, 11069b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen childRight + lp.horizontalOffset, childBottom + lp.verticalOffset); 11079b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 11089b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 11099b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen onLayout(); 11109b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 11119b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 111226e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen @Override 111326e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen public void advance() { 111426e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen long timeSinceLastInteraction = System.currentTimeMillis() - mLastInteractionTime; 1115c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen 1116c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (mAdapter == null) return; 1117ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen final int adapterCount = getCount(); 1118c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (adapterCount == 1 && mLoopViews) return; 1119c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen 112026e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen if (mSwipeGestureType == GESTURE_NONE && 112126e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen timeSinceLastInteraction > MIN_TIME_BETWEEN_INTERACTION_AND_AUTOADVANCE) { 112226e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen showNext(); 112326e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen } 112426e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen } 112526e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen 1126839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private void measureChildren() { 1127839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int count = getChildCount(); 112836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 112936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int measuredWidth = getMeasuredWidth(); 113036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int measuredHeight = getMeasuredHeight(); 113136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 113236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int childWidth = Math.round(measuredWidth*(1-PERSPECTIVE_SHIFT_FACTOR_X)) 1133026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen - mPaddingLeft - mPaddingRight; 113436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int childHeight = Math.round(measuredHeight*(1-PERSPECTIVE_SHIFT_FACTOR_Y)) 1135839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen - mPaddingTop - mPaddingBottom; 1136839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 113736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen int maxWidth = 0; 113836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen int maxHeight = 0; 113936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 1140839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen for (int i = 0; i < count; i++) { 1141839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final View child = getChildAt(i); 114236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen child.measure(MeasureSpec.makeMeasureSpec(childWidth, MeasureSpec.AT_MOST), 114336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen MeasureSpec.makeMeasureSpec(childHeight, MeasureSpec.AT_MOST)); 114436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 114536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (child != mHighlight && child != mClickFeedback) { 114636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int childMeasuredWidth = child.getMeasuredWidth(); 114736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int childMeasuredHeight = child.getMeasuredHeight(); 114836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (childMeasuredWidth > maxWidth) { 114936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen maxWidth = childMeasuredWidth; 115036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 115136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (childMeasuredHeight > maxHeight) { 115236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen maxHeight = childMeasuredHeight; 115336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 115436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 115536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 115636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 115736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mNewPerspectiveShiftX = PERSPECTIVE_SHIFT_FACTOR_X * measuredWidth; 115836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mNewPerspectiveShiftY = PERSPECTIVE_SHIFT_FACTOR_Y * measuredHeight; 115953838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen 116053838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen // If we have extra space, we try and spread the items out 116178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (maxWidth > 0 && count > 0 && maxWidth < childWidth) { 116236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mNewPerspectiveShiftX = measuredWidth - maxWidth; 116336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 116436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 116578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (maxHeight > 0 && count > 0 && maxHeight < childHeight) { 116636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mNewPerspectiveShiftY = measuredHeight - maxHeight; 1167839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1168839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1169839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1170839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen @Override 1171839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1172839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec); 1173839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec); 1174839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec); 1175839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec); 1176839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1177839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen boolean haveChildRefSize = (mReferenceChildWidth != -1 && mReferenceChildHeight != -1); 1178839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1179839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // We need to deal with the case where our parent hasn't told us how 1180839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // big we should be. In this case we should 1181026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float factorY = 1/(1 - PERSPECTIVE_SHIFT_FACTOR_Y); 1182839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (heightSpecMode == MeasureSpec.UNSPECIFIED) { 1183839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen heightSpecSize = haveChildRefSize ? 1184026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen Math.round(mReferenceChildHeight * (1 + factorY)) + 1185839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mPaddingTop + mPaddingBottom : 0; 1186839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (heightSpecMode == MeasureSpec.AT_MOST) { 1187189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (haveChildRefSize) { 1188026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen int height = Math.round(mReferenceChildHeight * (1 + factorY)) 1189189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn + mPaddingTop + mPaddingBottom; 1190189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (height <= heightSpecSize) { 1191189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSpecSize = height; 1192189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 1193189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSpecSize |= MEASURED_STATE_TOO_SMALL; 1194ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen 1195189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 1196189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 1197189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSpecSize = 0; 1198189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 1199839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1200839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1201026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float factorX = 1/(1 - PERSPECTIVE_SHIFT_FACTOR_X); 1202839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (widthSpecMode == MeasureSpec.UNSPECIFIED) { 1203026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen widthSpecSize = haveChildRefSize ? 1204026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen Math.round(mReferenceChildWidth * (1 + factorX)) + 1205026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen mPaddingLeft + mPaddingRight : 0; 1206839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (heightSpecMode == MeasureSpec.AT_MOST) { 1207189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (haveChildRefSize) { 1208189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn int width = mReferenceChildWidth + mPaddingLeft + mPaddingRight; 1209189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (width <= widthSpecSize) { 1210189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSpecSize = width; 1211189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 1212189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSpecSize |= MEASURED_STATE_TOO_SMALL; 1213189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 1214189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 1215189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSpecSize = 0; 1216189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 1217839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1218839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen setMeasuredDimension(widthSpecSize, heightSpecSize); 1219839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen measureChildren(); 1220839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1221839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 12228a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 12238a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 12248a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 12258a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(StackView.class.getName()); 12268a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 12278a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 12288a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 12298a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 12308a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 12318a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(StackView.class.getName()); 123248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov info.setScrollable(getChildCount() > 1); 1233fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1234fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getDisplayedChild() < getChildCount() - 1) { 1235fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1236fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1237fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getDisplayedChild() > 0) { 1238fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1239fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 124048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 124148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 124248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov 124348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov @Override 124448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 124548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 124648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 124748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1248fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (!isEnabled()) { 1249fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 1250fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 125148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov switch (action) { 125248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 125348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (getDisplayedChild() < getChildCount() - 1) { 125448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov showNext(); 125548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 125648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 125748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } return false; 125848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 125948d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (getDisplayedChild() > 0) { 126048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov showPrevious(); 126148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 126248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 126348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } return false; 126448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 126548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 12668a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 12678a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 12689b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen class LayoutParams extends ViewGroup.LayoutParams { 12699b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int horizontalOffset; 12709b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int verticalOffset; 12719b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen View mView; 1272d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect parentRect = new Rect(); 1273d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect invalidateRect = new Rect(); 1274d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final RectF invalidateRectf = new RectF(); 1275d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect globalInvalidateRect = new Rect(); 12769b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 12779b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams(View view) { 12789b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen super(0, 0); 1279839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen width = 0; 1280839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen height = 0; 12819b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = 0; 12829b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen verticalOffset = 0; 12839b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView = view; 12849b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 12859b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 12869b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams(Context c, AttributeSet attrs) { 12879b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen super(c, attrs); 12889b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = 0; 12899b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen verticalOffset = 0; 1290839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen width = 0; 1291839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen height = 0; 1292b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 1293b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 12949b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen void invalidateGlobalRegion(View v, Rect r) { 1295d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen // We need to make a new rect here, so as not to modify the one passed 1296d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.set(r); 12971ff65d105a4691594b82a7a60e0b36f2dc677d11Adam Cohen globalInvalidateRect.union(0, 0, getWidth(), getHeight()); 12989b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen View p = v; 12999b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (!(v.getParent() != null && v.getParent() instanceof View)) return; 13009b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13019b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen boolean firstPass = true; 13029b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen parentRect.set(0, 0, 0, 0); 1303b7f4d030a2ed9301bf47c41fefc1b338f4347ffeAdam Cohen while (p.getParent() != null && p.getParent() instanceof View 1304d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen && !parentRect.contains(globalInvalidateRect)) { 13059b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (!firstPass) { 1306d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.offset(p.getLeft() - p.getScrollX(), p.getTop() 1307d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen - p.getScrollY()); 13089b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13099b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen firstPass = false; 13109b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen p = (View) p.getParent(); 1311b7f4d030a2ed9301bf47c41fefc1b338f4347ffeAdam Cohen parentRect.set(p.getScrollX(), p.getScrollY(), 13121ff65d105a4691594b82a7a60e0b36f2dc677d11Adam Cohen p.getWidth() + p.getScrollX(), p.getHeight() + p.getScrollY()); 13131ff65d105a4691594b82a7a60e0b36f2dc677d11Adam Cohen p.invalidate(globalInvalidateRect.left, globalInvalidateRect.top, 13141ff65d105a4691594b82a7a60e0b36f2dc677d11Adam Cohen globalInvalidateRect.right, globalInvalidateRect.bottom); 13159b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13169b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1317d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen p.invalidate(globalInvalidateRect.left, globalInvalidateRect.top, 1318d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.right, globalInvalidateRect.bottom); 1319d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen } 1320d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen 1321d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen Rect getInvalidateRect() { 1322d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen return invalidateRect; 1323d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen } 13249b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1325d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen void resetInvalidateRect() { 13260ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRect.set(0, 0, 0, 0); 13279b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 132832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1329a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // This is public so that ObjectAnimator can access it 13309b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen public void setVerticalOffset(int newVerticalOffset) { 13310ac116b688380489c3690f6f65b282990c221f17Adam Cohen setOffsets(horizontalOffset, newVerticalOffset); 13329b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13339b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13349b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen public void setHorizontalOffset(int newHorizontalOffset) { 13350ac116b688380489c3690f6f65b282990c221f17Adam Cohen setOffsets(newHorizontalOffset, verticalOffset); 13360ac116b688380489c3690f6f65b282990c221f17Adam Cohen } 13370ac116b688380489c3690f6f65b282990c221f17Adam Cohen 13380ac116b688380489c3690f6f65b282990c221f17Adam Cohen public void setOffsets(int newHorizontalOffset, int newVerticalOffset) { 13390ac116b688380489c3690f6f65b282990c221f17Adam Cohen int horizontalOffsetDelta = newHorizontalOffset - horizontalOffset; 13409b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = newHorizontalOffset; 13410ac116b688380489c3690f6f65b282990c221f17Adam Cohen int verticalOffsetDelta = newVerticalOffset - verticalOffset; 13420ac116b688380489c3690f6f65b282990c221f17Adam Cohen verticalOffset = newVerticalOffset; 13439b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13449b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (mView != null) { 13459b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView.requestLayout(); 13460ac116b688380489c3690f6f65b282990c221f17Adam Cohen int left = Math.min(mView.getLeft() + horizontalOffsetDelta, mView.getLeft()); 13470ac116b688380489c3690f6f65b282990c221f17Adam Cohen int right = Math.max(mView.getRight() + horizontalOffsetDelta, mView.getRight()); 13480ac116b688380489c3690f6f65b282990c221f17Adam Cohen int top = Math.min(mView.getTop() + verticalOffsetDelta, mView.getTop()); 13490ac116b688380489c3690f6f65b282990c221f17Adam Cohen int bottom = Math.max(mView.getBottom() + verticalOffsetDelta, mView.getBottom()); 13500ac116b688380489c3690f6f65b282990c221f17Adam Cohen 13510ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRectf.set(left, top, right, bottom); 13529b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13539b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float xoffset = -invalidateRectf.left; 13549b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float yoffset = -invalidateRectf.top; 13559b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateRectf.offset(xoffset, yoffset); 13569b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView.getMatrix().mapRect(invalidateRectf); 13579b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateRectf.offset(-xoffset, -yoffset); 13589b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13590ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRect.set((int) Math.floor(invalidateRectf.left), 13609b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.floor(invalidateRectf.top), 13619b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.ceil(invalidateRectf.right), 13629b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.ceil(invalidateRectf.bottom)); 13639b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13649b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateGlobalRegion(mView, invalidateRect); 13659b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13669b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 136732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 136832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 13699b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private static class HolographicHelper { 13709b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private final Paint mHolographicPaint = new Paint(); 13719b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private final Paint mErasePaint = new Paint(); 1372839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private final Paint mBlurPaint = new Paint(); 13738baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private static final int RES_OUT = 0; 13748baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private static final int CLICK_FEEDBACK = 1; 13758baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private float mDensity; 1376e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private BlurMaskFilter mSmallBlurMaskFilter; 1377e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private BlurMaskFilter mLargeBlurMaskFilter; 1378e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Canvas mCanvas = new Canvas(); 1379e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Canvas mMaskCanvas = new Canvas(); 1380e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final int[] mTmpXY = new int[2]; 1381e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Matrix mIdentityMatrix = new Matrix(); 138232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1383dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen HolographicHelper(Context context) { 13848baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mDensity = context.getResources().getDisplayMetrics().density; 1385dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 13869b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mHolographicPaint.setFilterBitmap(true); 1387839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mHolographicPaint.setMaskFilter(TableMaskFilter.CreateClipTable(0, 30)); 13889b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mErasePaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_OUT)); 13899b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mErasePaint.setFilterBitmap(true); 1390e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy 1391e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mSmallBlurMaskFilter = new BlurMaskFilter(2 * mDensity, BlurMaskFilter.Blur.NORMAL); 1392e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mLargeBlurMaskFilter = new BlurMaskFilter(4 * mDensity, BlurMaskFilter.Blur.NORMAL); 13939b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13949b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 139526f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen Bitmap createClickOutline(View v, int color) { 139626f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen return createOutline(v, CLICK_FEEDBACK, color); 139726f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen } 139826f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 139926f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen Bitmap createResOutline(View v, int color) { 140026f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen return createOutline(v, RES_OUT, color); 14018baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 14028baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 140326f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen Bitmap createOutline(View v, int type, int color) { 140426f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mHolographicPaint.setColor(color); 14058baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (type == RES_OUT) { 1406e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mBlurPaint.setMaskFilter(mSmallBlurMaskFilter); 14078baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } else if (type == CLICK_FEEDBACK) { 1408e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mBlurPaint.setMaskFilter(mLargeBlurMaskFilter); 14098baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 14108baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 14119b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (v.getMeasuredWidth() == 0 || v.getMeasuredHeight() == 0) { 14129b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return null; 14139b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 14149b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1415dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn Bitmap bitmap = Bitmap.createBitmap(v.getResources().getDisplayMetrics(), 1416dde331cebd87982faded6818ad5f9927ff994c96Dianne Hackborn v.getMeasuredWidth(), v.getMeasuredHeight(), Bitmap.Config.ARGB_8888); 1417e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mCanvas.setBitmap(bitmap); 141832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 14199b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float rotationX = v.getRotationX(); 1420839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float rotation = v.getRotation(); 1421839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float translationY = v.getTranslationY(); 1422026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float translationX = v.getTranslationX(); 14239b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen v.setRotationX(0); 1424839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setRotation(0); 1425839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setTranslationY(0); 1426026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen v.setTranslationX(0); 1427e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy v.draw(mCanvas); 14289b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen v.setRotationX(rotationX); 1429839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setRotation(rotation); 1430839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setTranslationY(translationY); 1431026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen v.setTranslationX(translationX); 14329b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1433e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy drawOutline(mCanvas, bitmap); 14346311d0a079702b29984c0d31937345be105e1a5eDianne Hackborn mCanvas.setBitmap(null); 14359b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return bitmap; 14369b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 14379b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 14389b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen void drawOutline(Canvas dest, Bitmap src) { 1439e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy final int[] xy = mTmpXY; 1440839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen Bitmap mask = src.extractAlpha(mBlurPaint, xy); 1441e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mMaskCanvas.setBitmap(mask); 1442e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mMaskCanvas.drawBitmap(src, -xy[0], -xy[1], mErasePaint); 14439b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen dest.drawColor(0, PorterDuff.Mode.CLEAR); 1444e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy dest.setMatrix(mIdentityMatrix); 1445839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen dest.drawBitmap(mask, xy[0], xy[1], mHolographicPaint); 14466311d0a079702b29984c0d31937345be105e1a5eDianne Hackborn mMaskCanvas.setBitmap(null); 14479b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mask.recycle(); 14489b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 144932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 1450ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen} 1451