StackView.java revision d38a0cee2074fcf8005fc0d746aad282941a39b8
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; 3544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.util.AttributeSet; 3644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.util.Log; 37a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohenimport android.view.InputDevice; 3844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.MotionEvent; 3944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.VelocityTracker; 4044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.View; 4144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.ViewConfiguration; 4244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.ViewGroup; 43b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohenimport android.view.animation.LinearInterpolator; 4444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.widget.RemoteViews.RemoteView; 4544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 4644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen@RemoteView 4744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen/** 4844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * A view that displays its children in a stack and allows users to discretely swipe 4944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * through the children. 5044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 5144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenpublic class StackView extends AdapterViewAnimator { 5244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private final String TAG = "StackView"; 5344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 5544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Default animation parameters 5644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 57e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy private static final int DEFAULT_ANIMATION_DURATION = 400; 58026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen private static final int FADE_IN_ANIMATION_DURATION = 800; 59e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy private static final int MINIMUM_ANIMATION_DURATION = 50; 60c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen private static final int STACK_RELAYOUT_DURATION = 100; 6144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 6244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 63839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Parameters effecting the perspective visuals 64839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 65026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen private static final float PERSPECTIVE_SHIFT_FACTOR_Y = 0.1f; 66026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen private static final float PERSPECTIVE_SHIFT_FACTOR_X = 0.1f; 67026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 6836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private float mPerspectiveShiftX; 6936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private float mPerspectiveShiftY; 7036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private float mNewPerspectiveShiftX; 7136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private float mNewPerspectiveShiftY; 7236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 73e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"FieldCanBeLocal"}) 7478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen private static final float PERSPECTIVE_SCALE_FACTOR = 0f; 75839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 76839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 77839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Represent the two possible stack modes, one where items slide up, and the other 78839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * where items slide down. The perspective is also inverted between these two modes. 79839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 80839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int ITEMS_SLIDE_UP = 0; 81839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int ITEMS_SLIDE_DOWN = 1; 82839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 83839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 8444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * These specify the different gesture states 8544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 865b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_NONE = 0; 875b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_SLIDE_UP = 1; 885b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_SLIDE_DOWN = 2; 8944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 9044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 9144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Specifies how far you need to swipe (up or down) before it 9244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * will be consider a completed gesture when you lift your finger 9344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 94a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen private static final float SWIPE_THRESHOLD_RATIO = 0.2f; 95a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen 96a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen /** 97a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen * Specifies the total distance, relative to the size of the stack, 98a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen * that views will be slid, either up or down 99a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen */ 1005b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final float SLIDE_UP_RATIO = 0.7f; 10144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 10244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 10344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Sentinel value for no current active pointer. 10444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Used by {@link #mActivePointerId}. 10544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 10644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private static final int INVALID_POINTER = -1; 10744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 10844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 109839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Number of active views in the stack. One fewer view is actually visible, as one is hidden. 110839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 111839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int NUM_ACTIVE_VIEWS = 5; 112839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 113dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private static final int FRAME_PADDING = 4; 114839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 115e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Rect mTouchRect = new Rect(); 116e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy 11726e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen private static final int MIN_TIME_BETWEEN_INTERACTION_AND_AUTOADVANCE = 5000; 11826e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen 119a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen private static long MIN_TIME_BETWEEN_SCROLLS = 100; 120a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen 121839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 12244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * These variables are all related to the current state of touch interaction 12344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * with the stack 12444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 12544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private float mInitialY; 12644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private float mInitialX; 12744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mActivePointerId; 12844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mYVelocity = 0; 12944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mSwipeGestureType = GESTURE_NONE; 130dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private int mSlideAmount; 13144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mSwipeThreshold; 13244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mTouchSlop; 13344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mMaximumVelocity; 13444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private VelocityTracker mVelocityTracker; 1353352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen private boolean mTransitionIsSetup = false; 13626f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen private int mResOutColor; 13726f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen private int mClickColor; 13844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 1399b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private static HolographicHelper sHolographicHelper; 14032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private ImageView mHighlight; 1418baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private ImageView mClickFeedback; 1428baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private boolean mClickFeedbackIsValid = false; 14332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private StackSlider mStackSlider; 14444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private boolean mFirstLayoutHappened = false; 14526e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen private long mLastInteractionTime = 0; 146a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen private long mLastScrollTime; 147839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private int mStackMode; 148dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private int mFramePadding; 1490ac116b688380489c3690f6f65b282990c221f17Adam Cohen private final Rect stackInvalidateRect = new Rect(); 15044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 15144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public StackView(Context context) { 15226f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen this(context, null); 15344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 15444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 15544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public StackView(Context context, AttributeSet attrs) { 15626f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen this(context, attrs, com.android.internal.R.attr.stackViewStyle); 15726f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen } 15826f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 15926f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen public StackView(Context context, AttributeSet attrs, int defStyleAttr) { 16026f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen super(context, attrs, defStyleAttr); 16126f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen TypedArray a = context.obtainStyledAttributes(attrs, 16226f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen com.android.internal.R.styleable.StackView, defStyleAttr, 0); 16326f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 16426f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mResOutColor = a.getColor( 16526f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen com.android.internal.R.styleable.StackView_resOutColor, 0); 16626f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mClickColor = a.getColor( 16726f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen com.android.internal.R.styleable.StackView_clickColor, 0); 16826f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 16926f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen a.recycle(); 17044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen initStackView(); 17144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 17244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 17344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void initStackView() { 17496d8d56302da81b24333b204e6d7f15064538036Adam Cohen configureViewAnimator(NUM_ACTIVE_VIEWS, 1); 17544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen setStaticTransformationsEnabled(true); 17644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final ViewConfiguration configuration = ViewConfiguration.get(getContext()); 177b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mTouchSlop = configuration.getScaledTouchSlop(); 17844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 17944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 18032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 18132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight = new ImageView(getContext()); 18232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.setLayoutParams(new LayoutParams(mHighlight)); 18332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen addViewInLayout(mHighlight, -1, new LayoutParams(mHighlight)); 1848baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 1858baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback = new ImageView(getContext()); 1868baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setLayoutParams(new LayoutParams(mClickFeedback)); 1878baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen addViewInLayout(mClickFeedback, -1, new LayoutParams(mClickFeedback)); 1888baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(INVISIBLE); 1898baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 19032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider = new StackSlider(); 19132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1929b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (sHolographicHelper == null) { 193dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen sHolographicHelper = new HolographicHelper(mContext); 19432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 1959b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen setClipChildren(false); 1969b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen setClipToPadding(false); 1971480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen 198839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // This sets the form of the StackView, which is currently to have the perspective-shifted 199839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // views above the active view, and have items slide down when sliding out. The opposite is 200839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // available by using ITEMS_SLIDE_UP. 201839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mStackMode = ITEMS_SLIDE_DOWN; 202839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 2031480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen // This is a flag to indicate the the stack is loading for the first time 2041480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen mWhichChild = -1; 205dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 206dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen // Adjust the frame padding based on the density, since the highlight changes based 207dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen // on the density 208dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen final float density = mContext.getResources().getDisplayMetrics().density; 209dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen mFramePadding = (int) Math.ceil(density * FRAME_PADDING); 21044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 21144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 21244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 21344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Animate the views between different relative indexes within the {@link AdapterViewAnimator} 21444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 21578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen void transformViewForTransition(int fromIndex, int toIndex, final View view, boolean animate) { 21669d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen ObjectAnimator alphaOa = null; 21769d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen ObjectAnimator oldAlphaOa = null; 21869d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen 21978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (!animate) { 22078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelSliderAnimator(); 22178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen view.setRotationX(0f); 22278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen LayoutParams lp = (LayoutParams) view.getLayoutParams(); 22378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen lp.setVerticalOffset(0); 22478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen lp.setHorizontalOffset(0); 22569d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen } 22669d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen 227502045849f760f018f662d752020aef32d4cecd9Adam Cohen if (fromIndex == -1 && toIndex == getNumActiveViews() -1) { 22844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Fade item in 22944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (view.getAlpha() == 1) { 23044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen view.setAlpha(0); 23144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 232502045849f760f018f662d752020aef32d4cecd9Adam Cohen transformViewAtIndex(toIndex, view, false); 233b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen view.setVisibility(VISIBLE); 234b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 23578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelAlphaAnimator(); 23678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (animate) { 23778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen alphaOa = ObjectAnimator.ofFloat(view, "alpha", view.getAlpha(), 1.0f); 23878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen alphaOa.setDuration(FADE_IN_ANIMATION_DURATION); 23978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).setAlphaAnimator(alphaOa); 24078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen alphaOa.start(); 24178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else { 24278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen view.setAlpha(1.0f); 24378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 24496d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (fromIndex == 0 && toIndex == 1) { 24544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Slide item in 24678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelSliderAnimator(); 24744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen view.setVisibility(VISIBLE); 24832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 249839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration = Math.round(mStackSlider.getDurationForNeutralPosition(mYVelocity)); 250b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 25169d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen animationSlider.setView(view); 25278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 25378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (animate) { 25478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen PropertyValuesHolder slideInY = PropertyValuesHolder.ofFloat("YProgress", 0.0f); 25578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen PropertyValuesHolder slideInX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 25678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator slideIn = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 25778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideInX, slideInY); 25878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideIn.setDuration(duration); 25978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideIn.setInterpolator(new LinearInterpolator()); 26078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).setSliderAnimator(slideIn); 26178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideIn.start(); 26278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else { 26378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen animationSlider.setYProgress(0f); 26478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen animationSlider.setXProgress(0f); 26578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 26696d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (fromIndex == 1 && toIndex == 0) { 26744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Slide item out 26878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelSliderAnimator(); 269839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration = Math.round(mStackSlider.getDurationForOffscreenPosition(mYVelocity)); 27044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 271b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 27269d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen animationSlider.setView(view); 27378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (animate) { 27478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen PropertyValuesHolder slideOutY = PropertyValuesHolder.ofFloat("YProgress", 1.0f); 27578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen PropertyValuesHolder slideOutX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 27678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator slideOut = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 27778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideOutX, slideOutY); 27878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideOut.setDuration(duration); 27978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideOut.setInterpolator(new LinearInterpolator()); 28078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).setSliderAnimator(slideOut); 28178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen slideOut.start(); 28278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else { 28378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen animationSlider.setYProgress(1.0f); 28478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen animationSlider.setXProgress(0f); 28578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 28669d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen } else if (toIndex == 0) { 28744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Make sure this view that is "waiting in the wings" is invisible 28844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen view.setAlpha(0.0f); 289b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen view.setVisibility(INVISIBLE); 29078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else if ((fromIndex == 0 || fromIndex == 1) && toIndex > 1) { 29169d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen view.setVisibility(VISIBLE); 29269d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen view.setAlpha(1.0f); 29378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen view.setRotationX(0f); 29478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen LayoutParams lp = (LayoutParams) view.getLayoutParams(); 29578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen lp.setVerticalOffset(0); 29678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen lp.setHorizontalOffset(0); 297c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen } else if (fromIndex == -1) { 298c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen view.setAlpha(1.0f); 299c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen view.setVisibility(VISIBLE); 30044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } else if (toIndex == -1) { 30144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Fade item out 30278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelAlphaAnimator(); 30378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (animate) { 30478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen alphaOa = ObjectAnimator.ofFloat(view, "alpha", view.getAlpha(), 0.0f); 30578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen alphaOa.setDuration(STACK_RELAYOUT_DURATION); 30678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).setAlphaAnimator(alphaOa); 30778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen alphaOa.start(); 30878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } else { 30978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen view.setAlpha(0f); 31078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 31144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 312839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 313839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // Implement the faked perspective 314839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (toIndex != -1) { 31578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen transformViewAtIndex(toIndex, view, animate); 316f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 317f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 318839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 31936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen private void transformViewAtIndex(int index, final View view, boolean animate) { 32036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float maxPerspectiveShiftY = mPerspectiveShiftY; 32136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float maxPerspectiveShiftX = mPerspectiveShiftX; 322026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 323c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (mStackMode == ITEMS_SLIDE_DOWN) { 324c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen index = mMaxNumActiveViews - index - 1; 325c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (index == mMaxNumActiveViews - 1) index--; 326c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen } else { 327c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen index--; 328c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (index < 0) index++; 329c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen } 330026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 331026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float r = (index * 1.0f) / (mMaxNumActiveViews - 2); 332026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 33336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float scale = 1 - PERSPECTIVE_SCALE_FACTOR * (1 - r); 334026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 335c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen float perspectiveTranslationY = r * maxPerspectiveShiftY; 336c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen float scaleShiftCorrectionY = (scale - 1) * 337026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen (getMeasuredHeight() * (1 - PERSPECTIVE_SHIFT_FACTOR_Y) / 2.0f); 33836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float transY = perspectiveTranslationY + scaleShiftCorrectionY; 339026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 340026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float perspectiveTranslationX = (1 - r) * maxPerspectiveShiftX; 341026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float scaleShiftCorrectionX = (1 - scale) * 342026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen (getMeasuredWidth() * (1 - PERSPECTIVE_SHIFT_FACTOR_X) / 2.0f); 34336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final float transX = perspectiveTranslationX + scaleShiftCorrectionX; 34436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 345c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen // If this view is currently being animated for a certain position, we need to cancel 34669d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen // this animation so as not to interfere with the new transformation. 34778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (view instanceof StackFrame) { 34878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).cancelTransformAnimator(); 34969d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen } 35069d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen 35136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (animate) { 35236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen PropertyValuesHolder translationX = PropertyValuesHolder.ofFloat("translationX", transX); 35336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen PropertyValuesHolder translationY = PropertyValuesHolder.ofFloat("translationY", transY); 35436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen PropertyValuesHolder scalePropX = PropertyValuesHolder.ofFloat("scaleX", scale); 35536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen PropertyValuesHolder scalePropY = PropertyValuesHolder.ofFloat("scaleY", scale); 35636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 35736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(view, scalePropX, scalePropY, 35836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen translationY, translationX); 359c0b53be0c92cc1102c733beef2ada7480950f90eAdam Cohen oa.setDuration(STACK_RELAYOUT_DURATION); 36078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (view instanceof StackFrame) { 36178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ((StackFrame) view).setTransformAnimator(oa); 36278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 36336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen oa.start(); 36436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } else { 36536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen view.setTranslationX(transX); 36636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen view.setTranslationY(transY); 36736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen view.setScaleX(scale); 36836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen view.setScaleY(scale); 36936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 370026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen } 371026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen 3723352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen private void setupStackSlider(View v, int mode) { 3733352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setMode(mode); 3743352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 37526f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mHighlight.setImageBitmap(sHolographicHelper.createResOutline(v, mResOutColor)); 3763352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.setRotation(v.getRotation()); 3773352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.setTranslationY(v.getTranslationY()); 378026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen mHighlight.setTranslationX(v.getTranslationX()); 3793352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.bringToFront(); 3803352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen v.bringToFront(); 3813352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setView(v); 3823352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 3833352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen v.setVisibility(VISIBLE); 3843352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 3853352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 3863352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 3870e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 3880e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@inheritDoc} 3890e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 3903352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @Override 3913352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @android.view.RemotableViewMethod 3923352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen public void showNext() { 3930ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (mSwipeGestureType != GESTURE_NONE) return; 3943352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (!mTransitionIsSetup) { 3953352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen View v = getViewAtRelativeIndex(1); 3963352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 3973352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, StackSlider.NORMAL_MODE); 3983352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setYProgress(0); 3993352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setXProgress(0); 4003352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4013352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4023352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen super.showNext(); 4033352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4043352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 4050e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 4060e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@inheritDoc} 4070e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 4083352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @Override 4093352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @android.view.RemotableViewMethod 4103352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen public void showPrevious() { 4110ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (mSwipeGestureType != GESTURE_NONE) return; 4123352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (!mTransitionIsSetup) { 4133352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen View v = getViewAtRelativeIndex(0); 4143352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 4153352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, StackSlider.NORMAL_MODE); 4163352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setYProgress(1); 4173352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setXProgress(0); 4183352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4193352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4203352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen super.showPrevious(); 4213352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 4223352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 42396d8d56302da81b24333b204e6d7f15064538036Adam Cohen @Override 424ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen void showOnly(int childIndex, boolean animate) { 425ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen super.showOnly(childIndex, animate); 42696d8d56302da81b24333b204e6d7f15064538036Adam Cohen 42796d8d56302da81b24333b204e6d7f15064538036Adam Cohen // Here we need to make sure that the z-order of the children is correct 4283352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen for (int i = mCurrentWindowEnd; i >= mCurrentWindowStart; i--) { 42996d8d56302da81b24333b204e6d7f15064538036Adam Cohen int index = modulo(i, getWindowSize()); 430d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen ViewAndMetaData vm = mViewsMap.get(index); 431d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen if (vm != null) { 4320ac116b688380489c3690f6f65b282990c221f17Adam Cohen View v = mViewsMap.get(index).view; 4330ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (v != null) v.bringToFront(); 4340ac116b688380489c3690f6f65b282990c221f17Adam Cohen } 43596d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 43678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (mHighlight != null) { 43778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen mHighlight.bringToFront(); 43878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 4393352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mTransitionIsSetup = false; 4408baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedbackIsValid = false; 4418baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4428baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 4438baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void updateClickFeedback() { 4448baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (!mClickFeedbackIsValid) { 4459c295482dd739e80dd49ea0dd3102ad6be6742ddAdam Cohen View v = getViewAtRelativeIndex(1); 4468baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (v != null) { 44726f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mClickFeedback.setImageBitmap( 44826f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen sHolographicHelper.createClickOutline(v, mClickColor)); 4498baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setTranslationX(v.getTranslationX()); 4508baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setTranslationY(v.getTranslationY()); 4518baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4528baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedbackIsValid = true; 4538baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4548baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4558baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 4568baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen @Override 4578baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void showTapFeedback(View v) { 4588baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen updateClickFeedback(); 4598baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(VISIBLE); 4608baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.bringToFront(); 4618baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen invalidate(); 4628baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 4638baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 4648baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen @Override 4658baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void hideTapFeedback(View v) { 4668baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(INVISIBLE); 4678baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen invalidate(); 46896d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 46996d8d56302da81b24333b204e6d7f15064538036Adam Cohen 470f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen private void updateChildTransforms() { 47196d8d56302da81b24333b204e6d7f15064538036Adam Cohen for (int i = 0; i < getNumActiveViews(); i++) { 472f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen View v = getViewAtRelativeIndex(i); 473f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen if (v != null) { 47436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen transformViewAtIndex(i, v, false); 475f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 476839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 47744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 47844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 47978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen private static class StackFrame extends FrameLayout { 48078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen WeakReference<ObjectAnimator> alphaAnimator; 48178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen WeakReference<ObjectAnimator> transformAnimator; 48278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen WeakReference<ObjectAnimator> sliderAnimator; 48378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 48478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen public StackFrame(Context context) { 48578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen super(context); 48678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 48778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 48878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen void setAlphaAnimator(ObjectAnimator oa) { 48978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen alphaAnimator = new WeakReference<ObjectAnimator>(oa); 49078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 49178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 49278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen void setTransformAnimator(ObjectAnimator oa) { 49378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen transformAnimator = new WeakReference<ObjectAnimator>(oa); 49478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 49578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 49678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen void setSliderAnimator(ObjectAnimator oa) { 49778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen sliderAnimator = new WeakReference<ObjectAnimator>(oa); 49878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 49978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 50078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen boolean cancelAlphaAnimator() { 50178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (alphaAnimator != null) { 50278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator oa = alphaAnimator.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 boolean cancelTransformAnimator() { 51278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (transformAnimator != null) { 51378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator oa = transformAnimator.get(); 51478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (oa != null) { 51578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen oa.cancel(); 51678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen return true; 51778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 51878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 51978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen return false; 52078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 52178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 52278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen boolean cancelSliderAnimator() { 52378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (sliderAnimator != null) { 52478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen ObjectAnimator oa = sliderAnimator.get(); 52578db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (oa != null) { 52678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen oa.cancel(); 52778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen return true; 52878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 52978db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 53078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen return false; 53178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 53278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen } 53378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 534dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen @Override 535dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen FrameLayout getFrameForChild() { 53678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen StackFrame fl = new StackFrame(mContext); 537dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen fl.setPadding(mFramePadding, mFramePadding, mFramePadding, mFramePadding); 538dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen return fl; 539dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen } 540dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 54144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 54244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Apply any necessary tranforms for the child that is being added. 54344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 54444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void applyTransformForChildAtIndex(View child, int relativeIndex) { 54544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 54644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 54744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 5489b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen protected void dispatchDraw(Canvas canvas) { 549321aa2b0258691c55843dff919eb2705d069167aAdam Cohen boolean expandClipRegion = false; 550321aa2b0258691c55843dff919eb2705d069167aAdam Cohen 5510ac116b688380489c3690f6f65b282990c221f17Adam Cohen canvas.getClipBounds(stackInvalidateRect); 552d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen final int childCount = getChildCount(); 553d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen for (int i = 0; i < childCount; i++) { 554e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen final View child = getChildAt(i); 555e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen LayoutParams lp = (LayoutParams) child.getLayoutParams(); 556e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen if ((lp.horizontalOffset == 0 && lp.verticalOffset == 0) || 557e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen child.getAlpha() == 0f || child.getVisibility() != VISIBLE) { 558e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen lp.resetInvalidateRect(); 559e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen } 560321aa2b0258691c55843dff919eb2705d069167aAdam Cohen Rect childInvalidateRect = lp.getInvalidateRect(); 561321aa2b0258691c55843dff919eb2705d069167aAdam Cohen if (!childInvalidateRect.isEmpty()) { 562321aa2b0258691c55843dff919eb2705d069167aAdam Cohen expandClipRegion = true; 563321aa2b0258691c55843dff919eb2705d069167aAdam Cohen stackInvalidateRect.union(childInvalidateRect); 564321aa2b0258691c55843dff919eb2705d069167aAdam Cohen } 565321aa2b0258691c55843dff919eb2705d069167aAdam Cohen } 566321aa2b0258691c55843dff919eb2705d069167aAdam Cohen 567321aa2b0258691c55843dff919eb2705d069167aAdam Cohen // We only expand the clip bounds if necessary. 568321aa2b0258691c55843dff919eb2705d069167aAdam Cohen if (expandClipRegion) { 569321aa2b0258691c55843dff919eb2705d069167aAdam Cohen canvas.save(Canvas.CLIP_SAVE_FLAG); 570321aa2b0258691c55843dff919eb2705d069167aAdam Cohen canvas.clipRect(stackInvalidateRect, Region.Op.UNION); 571321aa2b0258691c55843dff919eb2705d069167aAdam Cohen super.dispatchDraw(canvas); 572321aa2b0258691c55843dff919eb2705d069167aAdam Cohen canvas.restore(); 573321aa2b0258691c55843dff919eb2705d069167aAdam Cohen } else { 574321aa2b0258691c55843dff919eb2705d069167aAdam Cohen super.dispatchDraw(canvas); 57544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 5769b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 57744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5789b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private void onLayout() { 57944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (!mFirstLayoutHappened) { 58044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mFirstLayoutHappened = true; 58153838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen updateChildTransforms(); 58244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 58336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 584c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen final int newSlideAmount = Math.round(SLIDE_UP_RATIO * getMeasuredHeight()); 585c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen if (mSlideAmount != newSlideAmount) { 586c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen mSlideAmount = newSlideAmount; 587c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen mSwipeThreshold = Math.round(SWIPE_THRESHOLD_RATIO * newSlideAmount); 588c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen } 589c6a4716e24e6310efae78d04d86cc3369c2023b2Adam Cohen 59036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (Float.compare(mPerspectiveShiftY, mNewPerspectiveShiftY) != 0 || 59136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen Float.compare(mPerspectiveShiftX, mNewPerspectiveShiftX) != 0) { 59278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen 59336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mPerspectiveShiftY = mNewPerspectiveShiftY; 59436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mPerspectiveShiftX = mNewPerspectiveShiftX; 59553838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen updateChildTransforms(); 59636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 59744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 59844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 599a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen @Override 600a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen public boolean onGenericMotionEvent(MotionEvent event) { 601a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 602a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen switch (event.getAction()) { 603a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen case MotionEvent.ACTION_SCROLL: { 604a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 605a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen if (vscroll < 0) { 606a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen pacedScroll(false); 607a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen return true; 608a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } else if (vscroll > 0) { 609a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen pacedScroll(true); 610a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen return true; 611a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 612a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 613a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 614a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 615a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen return super.onGenericMotionEvent(event); 616a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 617a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen 618a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen // This ensures that the frequency of stack flips caused by scrolls is capped 619a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen private void pacedScroll(boolean up) { 620a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen long timeSinceLastScroll = System.currentTimeMillis() - mLastScrollTime; 621a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen if (timeSinceLastScroll > MIN_TIME_BETWEEN_SCROLLS) { 622a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen if (up) { 623a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen showPrevious(); 624a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } else { 625a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen showNext(); 626a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 627a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen mLastScrollTime = System.currentTimeMillis(); 628a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 629a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen } 630a8a7c92b3689cb90d72d03c0162bca848b19c392Adam Cohen 6310e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 6320e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@inheritDoc} 6330e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 63444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 63544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public boolean onInterceptTouchEvent(MotionEvent ev) { 63644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int action = ev.getAction(); 63744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen switch(action & MotionEvent.ACTION_MASK) { 63844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_DOWN: { 63944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mActivePointerId == INVALID_POINTER) { 64044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialX = ev.getX(); 64144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialY = ev.getY(); 64244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = ev.getPointerId(0); 64344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 64444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 64544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 64644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_MOVE: { 64744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 64844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerIndex == INVALID_POINTER) { 64944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // no data for our primary pointer, this shouldn't happen, log it 65044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Log.d(TAG, "Error: No data for our primary pointer."); 65144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return false; 65244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 65344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 65444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float deltaY = newY - mInitialY; 65544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 65632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen beginGestureIfNeeded(deltaY); 65744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 65844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 65944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_POINTER_UP: { 66044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen onSecondaryPointerUp(ev); 66144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 66244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 66344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_UP: 66444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_CANCEL: { 66544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 66644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 66744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 66844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 66944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 67044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return mSwipeGestureType != GESTURE_NONE; 67144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 67244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 67332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private void beginGestureIfNeeded(float deltaY) { 67432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if ((int) Math.abs(deltaY) > mTouchSlop && mSwipeGestureType == GESTURE_NONE) { 675c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen final int swipeGestureType = deltaY < 0 ? GESTURE_SLIDE_UP : GESTURE_SLIDE_DOWN; 67632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen cancelLongPress(); 67732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen requestDisallowInterceptTouchEvent(true); 67832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 679d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen if (mAdapter == null) return; 680ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen final int adapterCount = getCount(); 681d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen 682839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int activeIndex; 683839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 68496d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex = (swipeGestureType == GESTURE_SLIDE_DOWN) ? 0 : 1; 685839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 68696d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex = (swipeGestureType == GESTURE_SLIDE_DOWN) ? 1 : 0; 687839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 68832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 689c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen boolean endOfStack = mLoopViews && adapterCount == 1 && 690c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen ((mStackMode == ITEMS_SLIDE_UP && swipeGestureType == GESTURE_SLIDE_UP) || 691c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen (mStackMode == ITEMS_SLIDE_DOWN && swipeGestureType == GESTURE_SLIDE_DOWN)); 692c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen boolean beginningOfStack = mLoopViews && adapterCount == 1 && 693c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen ((mStackMode == ITEMS_SLIDE_DOWN && swipeGestureType == GESTURE_SLIDE_UP) || 694c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen (mStackMode == ITEMS_SLIDE_UP && swipeGestureType == GESTURE_SLIDE_DOWN)); 695c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen 6963352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen int stackMode; 697c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (mLoopViews && !beginningOfStack && !endOfStack) { 6983352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.NORMAL_MODE; 699c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen } else if (mCurrentWindowStartUnbounded + activeIndex == -1 || beginningOfStack) { 70096d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex++; 7013352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.BEGINNING_OF_STACK_MODE; 702c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen } else if (mCurrentWindowStartUnbounded + activeIndex == adapterCount - 1 || endOfStack) { 7033352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.END_OF_STACK_MODE; 7043d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else { 7053352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.NORMAL_MODE; 70632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 7073d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 7083352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mTransitionIsSetup = stackMode == StackSlider.NORMAL_MODE; 7093352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 7103d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen View v = getViewAtRelativeIndex(activeIndex); 7113d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (v == null) return; 7123d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 7133352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, stackMode); 7143d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 7153d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // We only register this gesture if we've made it this far without a problem 7163d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mSwipeGestureType = swipeGestureType; 717a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen cancelHandleClick(); 71832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 71932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 72032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 7210e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 7220e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@inheritDoc} 7230e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 72444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 72544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public boolean onTouchEvent(MotionEvent ev) { 726a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen super.onTouchEvent(ev); 727a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 72844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int action = ev.getAction(); 72944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 73044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerIndex == INVALID_POINTER) { 73144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // no data for our primary pointer, this shouldn't happen, log it 73244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Log.d(TAG, "Error: No data for our primary pointer."); 73344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return false; 73444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 73544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 73644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 73732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float newX = ev.getX(pointerIndex); 73844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float deltaY = newY - mInitialY; 73932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float deltaX = newX - mInitialX; 74044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker == null) { 74144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker = VelocityTracker.obtain(); 74244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 74344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.addMovement(ev); 74444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 74544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen switch (action & MotionEvent.ACTION_MASK) { 74644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_MOVE: { 74732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen beginGestureIfNeeded(deltaY); 74832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 749dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float rx = deltaX / (mSlideAmount * 1.0f); 75032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (mSwipeGestureType == GESTURE_SLIDE_DOWN) { 751dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float r = (deltaY - mTouchSlop * 1.0f) / mSlideAmount * 1.0f; 752839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN) r = 1 - r; 75332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setYProgress(1 - r); 75432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setXProgress(rx); 75532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return true; 75632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_UP) { 757dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float r = -(deltaY + mTouchSlop * 1.0f) / mSlideAmount * 1.0f; 758839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN) r = 1 - r; 75932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setYProgress(r); 76032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setXProgress(rx); 76132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return true; 76244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 76344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 76444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 76544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_UP: { 76644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen handlePointerUp(ev); 76744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 76844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 76944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_POINTER_UP: { 77044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen onSecondaryPointerUp(ev); 77144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 77244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 77344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_CANCEL: { 77444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 77544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 77644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 77744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 77844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 77944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return true; 78044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 78144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 78244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void onSecondaryPointerUp(MotionEvent ev) { 78344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final int activePointerIndex = ev.getActionIndex(); 78444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final int pointerId = ev.getPointerId(activePointerIndex); 78544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerId == mActivePointerId) { 78644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 78796d8d56302da81b24333b204e6d7f15064538036Adam Cohen int activeViewIndex = (mSwipeGestureType == GESTURE_SLIDE_DOWN) ? 0 : 1; 78844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 78944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View v = getViewAtRelativeIndex(activeViewIndex); 79044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (v == null) return; 79144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 79244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Our primary pointer has gone up -- let's see if we can find 79344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // another pointer on the view. If so, then we should replace 79444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // our primary pointer with this new pointer and adjust things 79544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // so that the view doesn't jump 79644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int index = 0; index < ev.getPointerCount(); index++) { 79744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (index != activePointerIndex) { 79844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 79944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float x = ev.getX(index); 80044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float y = ev.getY(index); 80144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 802e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mTouchRect.set(v.getLeft(), v.getTop(), v.getRight(), v.getBottom()); 803e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy if (mTouchRect.contains(Math.round(x), Math.round(y))) { 80444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float oldX = ev.getX(activePointerIndex); 80544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float oldY = ev.getY(activePointerIndex); 80644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 80744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // adjust our frame of reference to avoid a jump 80844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialY += (y - oldY); 80944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialX += (x - oldX); 81044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 81144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = ev.getPointerId(index); 81244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker != null) { 81344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.clear(); 81444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 81544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // ok, we're good, we found a new pointer which is touching the active view 81644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return; 81744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 81844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 81944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 82044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // if we made it this far, it means we didn't find a satisfactory new pointer :(, 8213d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // so end the gesture 82244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen handlePointerUp(ev); 82344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 82444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 82544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 82644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void handlePointerUp(MotionEvent ev) { 82744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 82844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 82944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int deltaY = (int) (newY - mInitialY); 83026e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen mLastInteractionTime = System.currentTimeMillis(); 83144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 8323d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mVelocityTracker != null) { 8333d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 8343d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mYVelocity = (int) mVelocityTracker.getYVelocity(mActivePointerId); 8353d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 83644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 83744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker != null) { 83844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.recycle(); 83944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker = null; 84044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 84144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 8423d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (deltaY > mSwipeThreshold && mSwipeGestureType == GESTURE_SLIDE_DOWN 8433d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mStackSlider.mMode == StackSlider.NORMAL_MODE) { 8440ac116b688380489c3690f6f65b282990c221f17Adam Cohen // We reset the gesture variable, because otherwise we will ignore showPrevious() / 8450ac116b688380489c3690f6f65b282990c221f17Adam Cohen // showNext(); 8460ac116b688380489c3690f6f65b282990c221f17Adam Cohen mSwipeGestureType = GESTURE_NONE; 8470ac116b688380489c3690f6f65b282990c221f17Adam Cohen 84844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Swipe threshold exceeded, swipe down 849839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 850839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen showPrevious(); 85196d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 85296d8d56302da81b24333b204e6d7f15064538036Adam Cohen showNext(); 853839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 85432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.bringToFront(); 8553d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else if (deltaY < -mSwipeThreshold && mSwipeGestureType == GESTURE_SLIDE_UP 8563d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mStackSlider.mMode == StackSlider.NORMAL_MODE) { 8570ac116b688380489c3690f6f65b282990c221f17Adam Cohen // We reset the gesture variable, because otherwise we will ignore showPrevious() / 8580ac116b688380489c3690f6f65b282990c221f17Adam Cohen // showNext(); 8590ac116b688380489c3690f6f65b282990c221f17Adam Cohen mSwipeGestureType = GESTURE_NONE; 8600ac116b688380489c3690f6f65b282990c221f17Adam Cohen 86144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Swipe threshold exceeded, swipe up 862839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 863839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen showNext(); 86496d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 86596d8d56302da81b24333b204e6d7f15064538036Adam Cohen showPrevious(); 866839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 867839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 86832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.bringToFront(); 869839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_UP ) { 87044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Didn't swipe up far enough, snap back down 871839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration; 872839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float finalYProgress = (mStackMode == ITEMS_SLIDE_DOWN) ? 1 : 0; 873839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP || mStackSlider.mMode != StackSlider.NORMAL_MODE) { 874839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForNeutralPosition()); 875839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 876839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForOffscreenPosition()); 877839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 87832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 879b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 8802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackY = PropertyValuesHolder.ofFloat("YProgress", finalYProgress); 8812794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 8822794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 883839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen snapBackX, snapBackY); 8842794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(duration); 885839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.setInterpolator(new LinearInterpolator()); 886839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.start(); 88732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_DOWN) { 88844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Didn't swipe down far enough, snap back up 889839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float finalYProgress = (mStackMode == ITEMS_SLIDE_DOWN) ? 0 : 1; 890839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration; 891839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN || mStackSlider.mMode != StackSlider.NORMAL_MODE) { 892839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForNeutralPosition()); 893839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 894839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForOffscreenPosition()); 895839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 8963d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 897b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 8982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackY = 8992794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder.ofFloat("YProgress",finalYProgress); 9002794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 9012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 902839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen snapBackX, snapBackY); 9032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(duration); 904839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.start(); 90544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 90644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 90744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 90844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 90932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 91032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 91132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private class StackSlider { 91232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen View mView; 91332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float mYProgress; 91432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float mXProgress; 91532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 9163d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int NORMAL_MODE = 0; 9173d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int BEGINNING_OF_STACK_MODE = 1; 9183d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int END_OF_STACK_MODE = 2; 9193d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 9203d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen int mMode = NORMAL_MODE; 9213d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 922b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public StackSlider() { 923b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 924b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 925b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public StackSlider(StackSlider copy) { 926b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mView = copy.mView; 927b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mYProgress = copy.mYProgress; 928b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mXProgress = copy.mXProgress; 9293d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mMode = copy.mMode; 930b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 931b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 93232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float cubic(float r) { 933839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (float) (Math.pow(2 * r - 1, 3) + 1) / 2.0f; 93432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 93532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 93632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float highlightAlphaInterpolator(float r) { 93732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float pivot = 0.4f; 93832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (r < pivot) { 939839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return 0.85f * cubic(r / pivot); 94032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else { 941839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return 0.85f * cubic(1 - (r - pivot) / (1 - pivot)); 94232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 94332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 94432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 94532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float viewAlphaInterpolator(float r) { 94632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float pivot = 0.3f; 94732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (r > pivot) { 948839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (r - pivot) / (1 - pivot); 94932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else { 95032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return 0; 95132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 95232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 95332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 954b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen private float rotationInterpolator(float r) { 955b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen float pivot = 0.2f; 956b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen if (r < pivot) { 957b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return 0; 958b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } else { 959839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (r - pivot) / (1 - pivot); 960b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 961b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 962b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 96332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen void setView(View v) { 96432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mView = v; 96532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 96632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 96732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen public void setYProgress(float r) { 96832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen // enforce r between 0 and 1 96932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen r = Math.min(1.0f, r); 97032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen r = Math.max(0, r); 97132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 97232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mYProgress = r; 973a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen if (mView == null) return; 974a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen 97532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 97632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams highlightLp = (LayoutParams) mHighlight.getLayoutParams(); 97732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 978839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int stackDirection = (mStackMode == ITEMS_SLIDE_UP) ? 1 : -1; 979839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 980488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen // We need to prevent any clipping issues which may arise by setting a layer type. 981488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen // This doesn't come for free however, so we only want to enable it when required. 982488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen if (Float.compare(0f, mYProgress) != 0 && Float.compare(1.0f, mYProgress) != 0) { 983488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen if (mView.getLayerType() == LAYER_TYPE_NONE) { 984488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen mView.setLayerType(LAYER_TYPE_HARDWARE, null); 985488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen } 986488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen } else { 987488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen if (mView.getLayerType() != LAYER_TYPE_NONE) { 988488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen mView.setLayerType(LAYER_TYPE_NONE, null); 989488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen } 990488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen } 991488672148c30b17c0ea7fa0f4af3897ad51c566cAdam Cohen 9923d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen switch (mMode) { 9933d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen case NORMAL_MODE: 994dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(-r * stackDirection * mSlideAmount)); 995dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(-r * stackDirection * mSlideAmount)); 9963d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 9973d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 998839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float alpha = viewAlphaInterpolator(1 - r); 9993d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 10003d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // We make sure that views which can't be seen (have 0 alpha) are also invisible 10013d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // so that they don't interfere with click events. 10023d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mView.getAlpha() == 0 && alpha != 0 && mView.getVisibility() != VISIBLE) { 10033d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setVisibility(VISIBLE); 10043d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else if (alpha == 0 && mView.getAlpha() != 0 10053d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mView.getVisibility() == VISIBLE) { 10063d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setVisibility(INVISIBLE); 10073d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 1008b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 10093d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setAlpha(alpha); 1010839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mView.setRotationX(stackDirection * 90.0f * rotationInterpolator(r)); 1011839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mHighlight.setRotationX(stackDirection * 90.0f * rotationInterpolator(r)); 10123d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 101396d8d56302da81b24333b204e6d7f15064538036Adam Cohen case END_OF_STACK_MODE: 1014839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen r = r * 0.2f; 1015dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(-stackDirection * r * mSlideAmount)); 1016dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(-stackDirection * r * mSlideAmount)); 10173d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 10183d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 101996d8d56302da81b24333b204e6d7f15064538036Adam Cohen case BEGINNING_OF_STACK_MODE: 1020839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen r = (1-r) * 0.2f; 1021dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(stackDirection * r * mSlideAmount)); 1022dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(stackDirection * r * mSlideAmount)); 10233d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 10243d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 1025b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 102632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 102732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 102832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen public void setXProgress(float r) { 102932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen // enforce r between 0 and 1 10303d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r = Math.min(2.0f, r); 10313d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r = Math.max(-2.0f, r); 103232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 103332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mXProgress = r; 103432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1035a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen if (mView == null) return; 103632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 103732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams highlightLp = (LayoutParams) mHighlight.getLayoutParams(); 103832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 10393d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r *= 0.2f; 1040dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setHorizontalOffset(Math.round(r * mSlideAmount)); 1041dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setHorizontalOffset(Math.round(r * mSlideAmount)); 104232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 104332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 10443d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen void setMode(int mode) { 10453d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mMode = mode; 10463d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10473d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 10483d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen float getDurationForNeutralPosition() { 1049839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(false, 0); 10503d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10513d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 10523d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen float getDurationForOffscreenPosition() { 1053839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(true, 0); 1054839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1055839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1056839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float getDurationForNeutralPosition(float velocity) { 1057839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(false, velocity); 1058839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1059839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1060839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float getDurationForOffscreenPosition(float velocity) { 1061839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(true, velocity); 10623d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10633d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 1064839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private float getDuration(boolean invert, float velocity) { 10653d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mView != null) { 10663d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 10673d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 1068839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float d = (float) Math.sqrt(Math.pow(viewLp.horizontalOffset, 2) + 1069839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen Math.pow(viewLp.verticalOffset, 2)); 1070dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float maxd = (float) Math.sqrt(Math.pow(mSlideAmount, 2) + 1071dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen Math.pow(0.4f * mSlideAmount, 2)); 1072839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1073839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (velocity == 0) { 1074839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (invert ? (1 - d / maxd) : d / maxd) * DEFAULT_ANIMATION_DURATION; 1075839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 1076839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float duration = invert ? d / Math.abs(velocity) : 1077839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen (maxd - d) / Math.abs(velocity); 1078839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (duration < MINIMUM_ANIMATION_DURATION || 1079839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration > DEFAULT_ANIMATION_DURATION) { 1080839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(invert, 0); 1081839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 1082839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return duration; 1083839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1084839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 10853d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10863d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen return 0; 10873d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 10883d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 1089e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy // Used for animations 1090e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"UnusedDeclaration"}) 1091839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen public float getYProgress() { 109232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return mYProgress; 109332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 109432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1095e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy // Used for animations 1096e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"UnusedDeclaration"}) 1097839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen public float getXProgress() { 109832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return mXProgress; 109932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 110044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 110144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 11029b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams createOrReuseLayoutParams(View v) { 11039b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final ViewGroup.LayoutParams currentLp = v.getLayoutParams(); 11049b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (currentLp instanceof LayoutParams) { 11059b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams lp = (LayoutParams) currentLp; 11069b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen lp.setHorizontalOffset(0); 11079b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen lp.setVerticalOffset(0); 1108839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen lp.width = 0; 1109839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen lp.width = 0; 11109b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return lp; 11119b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 11129b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return new LayoutParams(v); 111332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 111432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 11159b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen @Override 11169b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1117ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen checkForAndHandleDataChanged(); 11189b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 11199b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final int childCount = getChildCount(); 11209b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen for (int i = 0; i < childCount; i++) { 11219b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final View child = getChildAt(i); 11229b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 11239b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int childRight = mPaddingLeft + child.getMeasuredWidth(); 11249b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int childBottom = mPaddingTop + child.getMeasuredHeight(); 11259b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams lp = (LayoutParams) child.getLayoutParams(); 11269b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 11279b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen child.layout(mPaddingLeft + lp.horizontalOffset, mPaddingTop + lp.verticalOffset, 11289b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen childRight + lp.horizontalOffset, childBottom + lp.verticalOffset); 11299b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 11309b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 11319b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen onLayout(); 11329b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 11339b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 113426e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen @Override 113526e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen public void advance() { 113626e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen long timeSinceLastInteraction = System.currentTimeMillis() - mLastInteractionTime; 1137c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen 1138c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (mAdapter == null) return; 1139ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen final int adapterCount = getCount(); 1140c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen if (adapterCount == 1 && mLoopViews) return; 1141c99ff7390d3c3fd7f5dbe773b6a824a877a1b52bAdam Cohen 114226e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen if (mSwipeGestureType == GESTURE_NONE && 114326e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen timeSinceLastInteraction > MIN_TIME_BETWEEN_INTERACTION_AND_AUTOADVANCE) { 114426e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen showNext(); 114526e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen } 114626e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen } 114726e30bb7fe373ad4bb569a5de2577e0c857e7c27Adam Cohen 1148839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private void measureChildren() { 1149839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int count = getChildCount(); 115036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 115136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int measuredWidth = getMeasuredWidth(); 115236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int measuredHeight = getMeasuredHeight(); 115336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 115436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int childWidth = Math.round(measuredWidth*(1-PERSPECTIVE_SHIFT_FACTOR_X)) 1155026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen - mPaddingLeft - mPaddingRight; 115636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int childHeight = Math.round(measuredHeight*(1-PERSPECTIVE_SHIFT_FACTOR_Y)) 1157839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen - mPaddingTop - mPaddingBottom; 1158839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 115936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen int maxWidth = 0; 116036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen int maxHeight = 0; 116136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 1162839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen for (int i = 0; i < count; i++) { 1163839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final View child = getChildAt(i); 116436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen child.measure(MeasureSpec.makeMeasureSpec(childWidth, MeasureSpec.AT_MOST), 116536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen MeasureSpec.makeMeasureSpec(childHeight, MeasureSpec.AT_MOST)); 116636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 116736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (child != mHighlight && child != mClickFeedback) { 116836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int childMeasuredWidth = child.getMeasuredWidth(); 116936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen final int childMeasuredHeight = child.getMeasuredHeight(); 117036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (childMeasuredWidth > maxWidth) { 117136f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen maxWidth = childMeasuredWidth; 117236f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 117336f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen if (childMeasuredHeight > maxHeight) { 117436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen maxHeight = childMeasuredHeight; 117536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 117636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 117736f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 117836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 117936f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mNewPerspectiveShiftX = PERSPECTIVE_SHIFT_FACTOR_X * measuredWidth; 118036f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mNewPerspectiveShiftY = PERSPECTIVE_SHIFT_FACTOR_Y * measuredHeight; 118153838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen 118253838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen // If we have extra space, we try and spread the items out 118378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (maxWidth > 0 && count > 0 && maxWidth < childWidth) { 118436f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mNewPerspectiveShiftX = measuredWidth - maxWidth; 118536f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen } 118636f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen 118778db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen if (maxHeight > 0 && count > 0 && maxHeight < childHeight) { 118836f43908ae8ef9c45cbbbc6f5c16d4281da77ff7Adam Cohen mNewPerspectiveShiftY = measuredHeight - maxHeight; 1189839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1190839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1191839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1192839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen @Override 1193839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1194839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec); 1195839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec); 1196839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec); 1197839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec); 1198839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1199839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen boolean haveChildRefSize = (mReferenceChildWidth != -1 && mReferenceChildHeight != -1); 1200839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1201839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // We need to deal with the case where our parent hasn't told us how 1202839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // big we should be. In this case we should 1203026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float factorY = 1/(1 - PERSPECTIVE_SHIFT_FACTOR_Y); 1204839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (heightSpecMode == MeasureSpec.UNSPECIFIED) { 1205839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen heightSpecSize = haveChildRefSize ? 1206026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen Math.round(mReferenceChildHeight * (1 + factorY)) + 1207839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mPaddingTop + mPaddingBottom : 0; 1208839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (heightSpecMode == MeasureSpec.AT_MOST) { 1209189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (haveChildRefSize) { 1210026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen int height = Math.round(mReferenceChildHeight * (1 + factorY)) 1211189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn + mPaddingTop + mPaddingBottom; 1212189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (height <= heightSpecSize) { 1213189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSpecSize = height; 1214189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 1215189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSpecSize |= MEASURED_STATE_TOO_SMALL; 1216ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen 1217189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 1218189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 1219189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSpecSize = 0; 1220189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 1221839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1222839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1223026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float factorX = 1/(1 - PERSPECTIVE_SHIFT_FACTOR_X); 1224839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (widthSpecMode == MeasureSpec.UNSPECIFIED) { 1225026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen widthSpecSize = haveChildRefSize ? 1226026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen Math.round(mReferenceChildWidth * (1 + factorX)) + 1227026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen mPaddingLeft + mPaddingRight : 0; 1228839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (heightSpecMode == MeasureSpec.AT_MOST) { 1229189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (haveChildRefSize) { 1230189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn int width = mReferenceChildWidth + mPaddingLeft + mPaddingRight; 1231189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (width <= widthSpecSize) { 1232189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSpecSize = width; 1233189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 1234189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSpecSize |= MEASURED_STATE_TOO_SMALL; 1235189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 1236189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 1237189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSpecSize = 0; 1238189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 1239839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1240839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen setMeasuredDimension(widthSpecSize, heightSpecSize); 1241839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen measureChildren(); 1242839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 1243839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 12449b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen class LayoutParams extends ViewGroup.LayoutParams { 12459b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int horizontalOffset; 12469b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int verticalOffset; 12479b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen View mView; 1248d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect parentRect = new Rect(); 1249d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect invalidateRect = new Rect(); 1250d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final RectF invalidateRectf = new RectF(); 1251d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect globalInvalidateRect = new Rect(); 12529b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 12539b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams(View view) { 12549b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen super(0, 0); 1255839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen width = 0; 1256839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen height = 0; 12579b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = 0; 12589b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen verticalOffset = 0; 12599b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView = view; 12609b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 12619b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 12629b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams(Context c, AttributeSet attrs) { 12639b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen super(c, attrs); 12649b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = 0; 12659b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen verticalOffset = 0; 1266839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen width = 0; 1267839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen height = 0; 1268b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 1269b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 12709b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen void invalidateGlobalRegion(View v, Rect r) { 1271d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen // We need to make a new rect here, so as not to modify the one passed 1272d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.set(r); 12731ff65d105a4691594b82a7a60e0b36f2dc677d11Adam Cohen globalInvalidateRect.union(0, 0, getWidth(), getHeight()); 12749b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen View p = v; 12759b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (!(v.getParent() != null && v.getParent() instanceof View)) return; 12769b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 12779b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen boolean firstPass = true; 12789b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen parentRect.set(0, 0, 0, 0); 12799b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int depth = 0; 1280b7f4d030a2ed9301bf47c41fefc1b338f4347ffeAdam Cohen while (p.getParent() != null && p.getParent() instanceof View 1281d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen && !parentRect.contains(globalInvalidateRect)) { 12829b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (!firstPass) { 1283d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.offset(p.getLeft() - p.getScrollX(), p.getTop() 1284d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen - p.getScrollY()); 12859b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen depth++; 12869b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 12879b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen firstPass = false; 12889b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen p = (View) p.getParent(); 1289b7f4d030a2ed9301bf47c41fefc1b338f4347ffeAdam Cohen parentRect.set(p.getScrollX(), p.getScrollY(), 12901ff65d105a4691594b82a7a60e0b36f2dc677d11Adam Cohen p.getWidth() + p.getScrollX(), p.getHeight() + p.getScrollY()); 12911ff65d105a4691594b82a7a60e0b36f2dc677d11Adam Cohen p.invalidate(globalInvalidateRect.left, globalInvalidateRect.top, 12921ff65d105a4691594b82a7a60e0b36f2dc677d11Adam Cohen globalInvalidateRect.right, globalInvalidateRect.bottom); 12939b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 12949b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1295d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen p.invalidate(globalInvalidateRect.left, globalInvalidateRect.top, 1296d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.right, globalInvalidateRect.bottom); 1297d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen } 1298d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen 1299d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen Rect getInvalidateRect() { 1300d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen return invalidateRect; 1301d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen } 13029b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1303d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen void resetInvalidateRect() { 13040ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRect.set(0, 0, 0, 0); 13059b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 130632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1307a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // This is public so that ObjectAnimator can access it 13089b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen public void setVerticalOffset(int newVerticalOffset) { 13090ac116b688380489c3690f6f65b282990c221f17Adam Cohen setOffsets(horizontalOffset, newVerticalOffset); 13109b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13119b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13129b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen public void setHorizontalOffset(int newHorizontalOffset) { 13130ac116b688380489c3690f6f65b282990c221f17Adam Cohen setOffsets(newHorizontalOffset, verticalOffset); 13140ac116b688380489c3690f6f65b282990c221f17Adam Cohen } 13150ac116b688380489c3690f6f65b282990c221f17Adam Cohen 13160ac116b688380489c3690f6f65b282990c221f17Adam Cohen public void setOffsets(int newHorizontalOffset, int newVerticalOffset) { 13170ac116b688380489c3690f6f65b282990c221f17Adam Cohen int horizontalOffsetDelta = newHorizontalOffset - horizontalOffset; 13189b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = newHorizontalOffset; 13190ac116b688380489c3690f6f65b282990c221f17Adam Cohen int verticalOffsetDelta = newVerticalOffset - verticalOffset; 13200ac116b688380489c3690f6f65b282990c221f17Adam Cohen verticalOffset = newVerticalOffset; 13219b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13229b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (mView != null) { 13239b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView.requestLayout(); 13240ac116b688380489c3690f6f65b282990c221f17Adam Cohen int left = Math.min(mView.getLeft() + horizontalOffsetDelta, mView.getLeft()); 13250ac116b688380489c3690f6f65b282990c221f17Adam Cohen int right = Math.max(mView.getRight() + horizontalOffsetDelta, mView.getRight()); 13260ac116b688380489c3690f6f65b282990c221f17Adam Cohen int top = Math.min(mView.getTop() + verticalOffsetDelta, mView.getTop()); 13270ac116b688380489c3690f6f65b282990c221f17Adam Cohen int bottom = Math.max(mView.getBottom() + verticalOffsetDelta, mView.getBottom()); 13280ac116b688380489c3690f6f65b282990c221f17Adam Cohen 13290ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRectf.set(left, top, right, bottom); 13309b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13319b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float xoffset = -invalidateRectf.left; 13329b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float yoffset = -invalidateRectf.top; 13339b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateRectf.offset(xoffset, yoffset); 13349b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView.getMatrix().mapRect(invalidateRectf); 13359b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateRectf.offset(-xoffset, -yoffset); 13369b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13370ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRect.set((int) Math.floor(invalidateRectf.left), 13389b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.floor(invalidateRectf.top), 13399b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.ceil(invalidateRectf.right), 13409b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.ceil(invalidateRectf.bottom)); 13419b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13429b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateGlobalRegion(mView, invalidateRect); 13439b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13449b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 134532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 134632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 13479b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private static class HolographicHelper { 13489b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private final Paint mHolographicPaint = new Paint(); 13499b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private final Paint mErasePaint = new Paint(); 1350839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private final Paint mBlurPaint = new Paint(); 13518baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private static final int RES_OUT = 0; 13528baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private static final int CLICK_FEEDBACK = 1; 13538baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private float mDensity; 1354e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private BlurMaskFilter mSmallBlurMaskFilter; 1355e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private BlurMaskFilter mLargeBlurMaskFilter; 1356e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Canvas mCanvas = new Canvas(); 1357e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Canvas mMaskCanvas = new Canvas(); 1358e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final int[] mTmpXY = new int[2]; 1359e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Matrix mIdentityMatrix = new Matrix(); 136032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1361dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen HolographicHelper(Context context) { 13628baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mDensity = context.getResources().getDisplayMetrics().density; 1363dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 13649b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mHolographicPaint.setFilterBitmap(true); 1365839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mHolographicPaint.setMaskFilter(TableMaskFilter.CreateClipTable(0, 30)); 13669b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mErasePaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_OUT)); 13679b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mErasePaint.setFilterBitmap(true); 1368e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy 1369e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mSmallBlurMaskFilter = new BlurMaskFilter(2 * mDensity, BlurMaskFilter.Blur.NORMAL); 1370e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mLargeBlurMaskFilter = new BlurMaskFilter(4 * mDensity, BlurMaskFilter.Blur.NORMAL); 13719b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13729b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 137326f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen Bitmap createClickOutline(View v, int color) { 137426f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen return createOutline(v, CLICK_FEEDBACK, color); 137526f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen } 137626f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 137726f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen Bitmap createResOutline(View v, int color) { 137826f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen return createOutline(v, RES_OUT, color); 13798baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 13808baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 138126f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen Bitmap createOutline(View v, int type, int color) { 138226f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen mHolographicPaint.setColor(color); 13838baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (type == RES_OUT) { 1384e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mBlurPaint.setMaskFilter(mSmallBlurMaskFilter); 13858baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } else if (type == CLICK_FEEDBACK) { 1386e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mBlurPaint.setMaskFilter(mLargeBlurMaskFilter); 13878baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 13888baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 13899b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (v.getMeasuredWidth() == 0 || v.getMeasuredHeight() == 0) { 13909b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return null; 13919b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 13929b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 13939b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen Bitmap bitmap = Bitmap.createBitmap(v.getMeasuredWidth(), v.getMeasuredHeight(), 13949b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen Bitmap.Config.ARGB_8888); 1395e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mCanvas.setBitmap(bitmap); 139632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 13979b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float rotationX = v.getRotationX(); 1398839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float rotation = v.getRotation(); 1399839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float translationY = v.getTranslationY(); 1400026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen float translationX = v.getTranslationX(); 14019b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen v.setRotationX(0); 1402839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setRotation(0); 1403839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setTranslationY(0); 1404026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen v.setTranslationX(0); 1405e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy v.draw(mCanvas); 14069b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen v.setRotationX(rotationX); 1407839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setRotation(rotation); 1408839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setTranslationY(translationY); 1409026e121bc35b9012943d8ea86518b51270d0c0efAdam Cohen v.setTranslationX(translationX); 14109b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1411e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy drawOutline(mCanvas, bitmap); 14129b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return bitmap; 14139b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 14149b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 14159b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen void drawOutline(Canvas dest, Bitmap src) { 1416e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy final int[] xy = mTmpXY; 1417839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen Bitmap mask = src.extractAlpha(mBlurPaint, xy); 1418e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mMaskCanvas.setBitmap(mask); 1419e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mMaskCanvas.drawBitmap(src, -xy[0], -xy[1], mErasePaint); 14209b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen dest.drawColor(0, PorterDuff.Mode.CLEAR); 1421e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy dest.setMatrix(mIdentityMatrix); 1422839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen dest.drawBitmap(mask, xy[0], xy[1], mHolographicPaint); 14239b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mask.recycle(); 14249b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 142532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 1426ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen} 1427