StackView.java revision 9c295482dd739e80dd49ea0dd3102ad6be6742dd
144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen/* 244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Copyright (C) 2010 The Android Open Source Project 344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Licensed under the Apache License, Version 2.0 (the "License"); 544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * you may not use this file except in compliance with the License. 644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * You may obtain a copy of the License at 744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * http://www.apache.org/licenses/LICENSE-2.0 944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 1044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Unless required by applicable law or agreed to in writing, software 1144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * distributed under the License is distributed on an "AS IS" BASIS, 1244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * See the License for the specific language governing permissions and 1444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * limitations under the License. 1544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 1644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 1744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenpackage android.widget; 1844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 19a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.animation.ObjectAnimator; 20e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guyimport android.animation.PropertyValuesHolder; 2144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.content.Context; 2232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.Bitmap; 23839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohenimport android.graphics.BlurMaskFilter; 2432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.Canvas; 2532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.Matrix; 2632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.Paint; 2732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.PorterDuff; 2832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohenimport android.graphics.PorterDuffXfermode; 2944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.graphics.Rect; 309b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohenimport android.graphics.RectF; 31d51bbb5b56446519db88f49f2682da782b0069acAdam Cohenimport android.graphics.Region; 32839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohenimport android.graphics.TableMaskFilter; 3344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.util.AttributeSet; 3444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.util.Log; 3544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.MotionEvent; 3644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.VelocityTracker; 3744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.View; 3844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.ViewConfiguration; 3944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.ViewGroup; 40b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohenimport android.view.animation.LinearInterpolator; 4144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.widget.RemoteViews.RemoteView; 4244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 4344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen@RemoteView 4444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen/** 4544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * A view that displays its children in a stack and allows users to discretely swipe 4644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * through the children. 4744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 4844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenpublic class StackView extends AdapterViewAnimator { 4944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private final String TAG = "StackView"; 5044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 5244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Default animation parameters 5344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 54e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy private static final int DEFAULT_ANIMATION_DURATION = 400; 55e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy private static final int MINIMUM_ANIMATION_DURATION = 50; 5644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 58839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Parameters effecting the perspective visuals 59839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 60839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static float PERSPECTIVE_SHIFT_FACTOR = 0.12f; 61e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"FieldCanBeLocal"}) 62839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static float PERSPECTIVE_SCALE_FACTOR = 0.35f; 63839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 64839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 65839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Represent the two possible stack modes, one where items slide up, and the other 66839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * where items slide down. The perspective is also inverted between these two modes. 67839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 68839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int ITEMS_SLIDE_UP = 0; 69839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int ITEMS_SLIDE_DOWN = 1; 70839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 71839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 7244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * These specify the different gesture states 7344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 745b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_NONE = 0; 755b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_SLIDE_UP = 1; 765b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final int GESTURE_SLIDE_DOWN = 2; 7744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 7844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 7944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Specifies how far you need to swipe (up or down) before it 8044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * will be consider a completed gesture when you lift your finger 8144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 82a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen private static final float SWIPE_THRESHOLD_RATIO = 0.2f; 83a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen 84a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen /** 85a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen * Specifies the total distance, relative to the size of the stack, 86a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen * that views will be slid, either up or down 87a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen */ 885b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private static final float SLIDE_UP_RATIO = 0.7f; 8944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 9044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 9144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Sentinel value for no current active pointer. 9244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Used by {@link #mActivePointerId}. 9344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 9444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private static final int INVALID_POINTER = -1; 9544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 9644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 97839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * Number of active views in the stack. One fewer view is actually visible, as one is hidden. 98839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 99839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private static final int NUM_ACTIVE_VIEWS = 5; 100839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 101dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private static final int FRAME_PADDING = 4; 102839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 103e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Rect mTouchRect = new Rect(); 104e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy 105839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 10644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * These variables are all related to the current state of touch interaction 10744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * with the stack 10844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 10944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private float mInitialY; 11044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private float mInitialX; 11144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mActivePointerId; 11244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mYVelocity = 0; 11344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mSwipeGestureType = GESTURE_NONE; 114dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private int mSlideAmount; 11544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mSwipeThreshold; 11644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mTouchSlop; 11744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int mMaximumVelocity; 11844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private VelocityTracker mVelocityTracker; 1193352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen private boolean mTransitionIsSetup = false; 12044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 1219b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private static HolographicHelper sHolographicHelper; 12232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private ImageView mHighlight; 1238baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private ImageView mClickFeedback; 1248baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private boolean mClickFeedbackIsValid = false; 12532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private StackSlider mStackSlider; 12644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private boolean mFirstLayoutHappened = false; 127839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private int mStackMode; 128dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen private int mFramePadding; 1290ac116b688380489c3690f6f65b282990c221f17Adam Cohen private final Rect stackInvalidateRect = new Rect(); 13044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 13144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public StackView(Context context) { 13244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen super(context); 13344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen initStackView(); 13444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 13544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 13644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public StackView(Context context, AttributeSet attrs) { 13744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen super(context, attrs); 13844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen initStackView(); 13944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 14044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 14144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void initStackView() { 14296d8d56302da81b24333b204e6d7f15064538036Adam Cohen configureViewAnimator(NUM_ACTIVE_VIEWS, 1); 14344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen setStaticTransformationsEnabled(true); 14444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final ViewConfiguration configuration = ViewConfiguration.get(getContext()); 145b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mTouchSlop = configuration.getScaledTouchSlop(); 14644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 14744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 14832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 14932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight = new ImageView(getContext()); 15032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.setLayoutParams(new LayoutParams(mHighlight)); 15132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen addViewInLayout(mHighlight, -1, new LayoutParams(mHighlight)); 1528baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 1538baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback = new ImageView(getContext()); 1548baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setLayoutParams(new LayoutParams(mClickFeedback)); 1558baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen addViewInLayout(mClickFeedback, -1, new LayoutParams(mClickFeedback)); 1568baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(INVISIBLE); 1578baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 15832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider = new StackSlider(); 15932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1609b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (sHolographicHelper == null) { 161dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen sHolographicHelper = new HolographicHelper(mContext); 16232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 1639b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen setClipChildren(false); 1649b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen setClipToPadding(false); 1651480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen 166839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // This sets the form of the StackView, which is currently to have the perspective-shifted 167839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // views above the active view, and have items slide down when sliding out. The opposite is 168839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // available by using ITEMS_SLIDE_UP. 169839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mStackMode = ITEMS_SLIDE_DOWN; 170839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 1711480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen // This is a flag to indicate the the stack is loading for the first time 1721480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen mWhichChild = -1; 173dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 174dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen // Adjust the frame padding based on the density, since the highlight changes based 175dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen // on the density 176dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen final float density = mContext.getResources().getDisplayMetrics().density; 177dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen mFramePadding = (int) Math.ceil(density * FRAME_PADDING); 17844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 17944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 18044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 18144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Animate the views between different relative indexes within the {@link AdapterViewAnimator} 18244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 18344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void animateViewForTransition(int fromIndex, int toIndex, View view) { 18496d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (fromIndex == -1 && toIndex != 0) { 18544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Fade item in 18644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (view.getAlpha() == 1) { 18744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen view.setAlpha(0); 18844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 189b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen view.setVisibility(VISIBLE); 190b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 1912794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator fadeIn = ObjectAnimator.ofFloat(view, "alpha", view.getAlpha(), 1.0f); 1922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase fadeIn.setDuration(DEFAULT_ANIMATION_DURATION); 19344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen fadeIn.start(); 19496d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (fromIndex == 0 && toIndex == 1) { 19544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Slide item in 19644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen view.setVisibility(VISIBLE); 19732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 198839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration = Math.round(mStackSlider.getDurationForNeutralPosition(mYVelocity)); 19944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 200b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 2012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder slideInY = PropertyValuesHolder.ofFloat("YProgress", 0.0f); 2022794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder slideInX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 2032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 204839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen slideInX, slideInY); 2052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(duration); 206839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.setInterpolator(new LinearInterpolator()); 207839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.start(); 20896d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (fromIndex == 1 && toIndex == 0) { 20944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Slide item out 210839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration = Math.round(mStackSlider.getDurationForOffscreenPosition(mYVelocity)); 21144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 212b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 2132794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder slideOutY = PropertyValuesHolder.ofFloat("YProgress", 1.0f); 2142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder slideOutX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 2152794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 2162794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase slideOutX, slideOutY); 2172794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(duration); 218839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.setInterpolator(new LinearInterpolator()); 219839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.start(); 22096d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (fromIndex == -1 && toIndex == 0) { 22144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Make sure this view that is "waiting in the wings" is invisible 22244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen view.setAlpha(0.0f); 223b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen view.setVisibility(INVISIBLE); 224b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen LayoutParams lp = (LayoutParams) view.getLayoutParams(); 225dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen lp.setVerticalOffset(-mSlideAmount); 22644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } else if (toIndex == -1) { 22744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Fade item out 2282794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator fadeOut = ObjectAnimator.ofFloat(view, "alpha", view.getAlpha(), 0.0f); 2292794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase fadeOut.setDuration(DEFAULT_ANIMATION_DURATION); 23044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen fadeOut.start(); 23144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 232839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 233839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // Implement the faked perspective 234839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (toIndex != -1) { 235f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen transformViewAtIndex(toIndex, view); 236f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 237f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 238839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 2393352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen private void setupStackSlider(View v, int mode) { 2403352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setMode(mode); 2413352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 2423352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.setImageBitmap(sHolographicHelper.createOutline(v)); 2433352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.setRotation(v.getRotation()); 2443352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.setTranslationY(v.getTranslationY()); 2453352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mHighlight.bringToFront(); 2463352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen v.bringToFront(); 2473352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setView(v); 2483352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 2493352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen v.setVisibility(VISIBLE); 2503352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 2513352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 2523352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 2533352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @Override 2543352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @android.view.RemotableViewMethod 2553352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen public void showNext() { 2560ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (mSwipeGestureType != GESTURE_NONE) return; 2573352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (!mTransitionIsSetup) { 2583352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen View v = getViewAtRelativeIndex(1); 2593352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 2603352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, StackSlider.NORMAL_MODE); 2613352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setYProgress(0); 2623352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setXProgress(0); 2633352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 2643352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 2653352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen super.showNext(); 2663352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 2673352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 2683352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @Override 2693352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen @android.view.RemotableViewMethod 2703352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen public void showPrevious() { 2710ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (mSwipeGestureType != GESTURE_NONE) return; 2723352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (!mTransitionIsSetup) { 2733352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen View v = getViewAtRelativeIndex(0); 2743352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen if (v != null) { 2753352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, StackSlider.NORMAL_MODE); 2763352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setYProgress(1); 2773352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mStackSlider.setXProgress(0); 2783352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 2793352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 2803352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen super.showPrevious(); 2813352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen } 2823352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 283f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen private void transformViewAtIndex(int index, View view) { 284dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float maxPerpectiveShift = mMeasuredHeight * PERSPECTIVE_SHIFT_FACTOR; 285839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 28696d8d56302da81b24333b204e6d7f15064538036Adam Cohen index = mMaxNumActiveViews - index - 1; 28796d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (index == mMaxNumActiveViews - 1) index--; 288839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 28996d8d56302da81b24333b204e6d7f15064538036Adam Cohen float r = (index * 1.0f) / (mMaxNumActiveViews - 2); 290839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 291f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen float scale = 1 - PERSPECTIVE_SCALE_FACTOR * (1 - r); 2922794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder scaleX = PropertyValuesHolder.ofFloat("scaleX", scale); 2932794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder scaleY = PropertyValuesHolder.ofFloat("scaleY", scale); 294839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 295f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen r = (float) Math.pow(r, 2); 296839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 297f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen int stackDirection = (mStackMode == ITEMS_SLIDE_UP) ? 1 : -1; 298dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float perspectiveTranslation = -stackDirection * r * maxPerpectiveShift; 299dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float scaleShiftCorrection = stackDirection * (1 - scale) * 300dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen (mMeasuredHeight * (1 - PERSPECTIVE_SHIFT_FACTOR) / 2.0f); 301dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float transY = perspectiveTranslation + scaleShiftCorrection; 302f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen 3032794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder translationY = PropertyValuesHolder.ofFloat("translationY", transY); 3042794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(view, scaleX, scaleY, translationY); 3052794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(100); 306f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen pa.start(); 307f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 308f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen 30996d8d56302da81b24333b204e6d7f15064538036Adam Cohen @Override 31096d8d56302da81b24333b204e6d7f15064538036Adam Cohen void showOnly(int childIndex, boolean animate, boolean onLayout) { 31196d8d56302da81b24333b204e6d7f15064538036Adam Cohen super.showOnly(childIndex, animate, onLayout); 31296d8d56302da81b24333b204e6d7f15064538036Adam Cohen 31396d8d56302da81b24333b204e6d7f15064538036Adam Cohen // Here we need to make sure that the z-order of the children is correct 3143352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen for (int i = mCurrentWindowEnd; i >= mCurrentWindowStart; i--) { 31596d8d56302da81b24333b204e6d7f15064538036Adam Cohen int index = modulo(i, getWindowSize()); 3160ac116b688380489c3690f6f65b282990c221f17Adam Cohen ViewAndIndex vi = mViewsMap.get(index); 3170ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (vi != null) { 3180ac116b688380489c3690f6f65b282990c221f17Adam Cohen View v = mViewsMap.get(index).view; 3190ac116b688380489c3690f6f65b282990c221f17Adam Cohen if (v != null) v.bringToFront(); 3200ac116b688380489c3690f6f65b282990c221f17Adam Cohen } 32196d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 3223352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mTransitionIsSetup = false; 3238baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedbackIsValid = false; 3248baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 3258baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 3268baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void updateClickFeedback() { 3278baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (!mClickFeedbackIsValid) { 3289c295482dd739e80dd49ea0dd3102ad6be6742ddAdam Cohen View v = getViewAtRelativeIndex(1); 3298baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (v != null) { 3308baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setImageBitmap(sHolographicHelper.createOutline(v, 3318baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen HolographicHelper.CLICK_FEEDBACK)); 3328baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setTranslationX(v.getTranslationX()); 3338baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setTranslationY(v.getTranslationY()); 3348baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 3358baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedbackIsValid = true; 3368baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 3378baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 3388baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 3398baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen @Override 3408baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void showTapFeedback(View v) { 3418baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen updateClickFeedback(); 3428baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(VISIBLE); 3438baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.bringToFront(); 3448baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen invalidate(); 3458baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 3468baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 3478baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen @Override 3488baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen void hideTapFeedback(View v) { 3498baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mClickFeedback.setVisibility(INVISIBLE); 3508baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen invalidate(); 35196d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 35296d8d56302da81b24333b204e6d7f15064538036Adam Cohen 353f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen private void updateChildTransforms() { 35496d8d56302da81b24333b204e6d7f15064538036Adam Cohen for (int i = 0; i < getNumActiveViews(); i++) { 355f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen View v = getViewAtRelativeIndex(i); 356f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen if (v != null) { 357f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen transformViewAtIndex(i, v); 358f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen } 359839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 36044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 36144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 362dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen @Override 363dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen FrameLayout getFrameForChild() { 364dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen FrameLayout fl = new FrameLayout(mContext); 365dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen fl.setPadding(mFramePadding, mFramePadding, mFramePadding, mFramePadding); 366dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen return fl; 367dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen } 368dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 36944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 37044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Apply any necessary tranforms for the child that is being added. 37144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 37244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void applyTransformForChildAtIndex(View child, int relativeIndex) { 37344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 37444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 37544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 3769b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen protected void dispatchDraw(Canvas canvas) { 3770ac116b688380489c3690f6f65b282990c221f17Adam Cohen canvas.getClipBounds(stackInvalidateRect); 378d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen final int childCount = getChildCount(); 379d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen for (int i = 0; i < childCount; i++) { 380d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen LayoutParams lp = (LayoutParams) getChildAt(i).getLayoutParams(); 3810ac116b688380489c3690f6f65b282990c221f17Adam Cohen stackInvalidateRect.union(lp.getInvalidateRect()); 382d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen lp.resetInvalidateRect(); 38344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 384d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen canvas.save(Canvas.CLIP_SAVE_FLAG); 3850ac116b688380489c3690f6f65b282990c221f17Adam Cohen canvas.clipRect(stackInvalidateRect, Region.Op.UNION); 386d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen super.dispatchDraw(canvas); 387d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen canvas.restore(); 3889b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 38944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 3909b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private void onLayout() { 39144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (!mFirstLayoutHappened) { 392dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen mSlideAmount = Math.round(SLIDE_UP_RATIO * getMeasuredHeight()); 393f04e22571f17bf850ef89adddf2b12171e536619Adam Cohen updateChildTransforms(); 394dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen mSwipeThreshold = Math.round(SWIPE_THRESHOLD_RATIO * mSlideAmount); 39544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mFirstLayoutHappened = true; 39644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 39744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 39844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 39944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 40044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public boolean onInterceptTouchEvent(MotionEvent ev) { 40144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int action = ev.getAction(); 40244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen switch(action & MotionEvent.ACTION_MASK) { 40344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_DOWN: { 40444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mActivePointerId == INVALID_POINTER) { 40544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialX = ev.getX(); 40644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialY = ev.getY(); 40744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = ev.getPointerId(0); 40844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 40944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 41044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 41144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_MOVE: { 41244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 41344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerIndex == INVALID_POINTER) { 41444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // no data for our primary pointer, this shouldn't happen, log it 41544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Log.d(TAG, "Error: No data for our primary pointer."); 41644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return false; 41744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 41844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 41944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float deltaY = newY - mInitialY; 42044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 42132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen beginGestureIfNeeded(deltaY); 42244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 42344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 42444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_POINTER_UP: { 42544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen onSecondaryPointerUp(ev); 42644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 42744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 42844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_UP: 42944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_CANCEL: { 43044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 43144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 43244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 43344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 43444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 43544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return mSwipeGestureType != GESTURE_NONE; 43644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 43744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 43832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private void beginGestureIfNeeded(float deltaY) { 43932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if ((int) Math.abs(deltaY) > mTouchSlop && mSwipeGestureType == GESTURE_NONE) { 4403d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen int swipeGestureType = deltaY < 0 ? GESTURE_SLIDE_UP : GESTURE_SLIDE_DOWN; 44132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen cancelLongPress(); 44232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen requestDisallowInterceptTouchEvent(true); 44332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 444d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen if (mAdapter == null) return; 445d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen 446839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int activeIndex; 447839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 44896d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex = (swipeGestureType == GESTURE_SLIDE_DOWN) ? 0 : 1; 449839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 45096d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex = (swipeGestureType == GESTURE_SLIDE_DOWN) ? 1 : 0; 451839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 45232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 4533352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen int stackMode; 4541b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen if (mLoopViews) { 4553352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.NORMAL_MODE; 45696d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (mCurrentWindowStartUnbounded + activeIndex == -1) { 45796d8d56302da81b24333b204e6d7f15064538036Adam Cohen activeIndex++; 4583352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.BEGINNING_OF_STACK_MODE; 45996d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else if (mCurrentWindowStartUnbounded + activeIndex == mAdapter.getCount() - 1) { 4603352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.END_OF_STACK_MODE; 4613d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else { 4623352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen stackMode = StackSlider.NORMAL_MODE; 46332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 4643d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 4653352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen mTransitionIsSetup = stackMode == StackSlider.NORMAL_MODE; 4663352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen 4673d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen View v = getViewAtRelativeIndex(activeIndex); 4683d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (v == null) return; 4693d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 4703352b6807f9b728b91cceb3ea5f2a065ace95da3Adam Cohen setupStackSlider(v, stackMode); 4713d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 4723d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // We only register this gesture if we've made it this far without a problem 4733d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mSwipeGestureType = swipeGestureType; 474a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen cancelHandleClick(); 47532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 47632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 47732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 47844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 47944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public boolean onTouchEvent(MotionEvent ev) { 480a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen super.onTouchEvent(ev); 481a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 48244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int action = ev.getAction(); 48344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 48444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerIndex == INVALID_POINTER) { 48544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // no data for our primary pointer, this shouldn't happen, log it 48644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Log.d(TAG, "Error: No data for our primary pointer."); 48744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return false; 48844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 48944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 49044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 49132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float newX = ev.getX(pointerIndex); 49244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float deltaY = newY - mInitialY; 49332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float deltaX = newX - mInitialX; 49444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker == null) { 49544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker = VelocityTracker.obtain(); 49644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 49744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.addMovement(ev); 49844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 49944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen switch (action & MotionEvent.ACTION_MASK) { 50044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_MOVE: { 50132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen beginGestureIfNeeded(deltaY); 50232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 503dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float rx = deltaX / (mSlideAmount * 1.0f); 50432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (mSwipeGestureType == GESTURE_SLIDE_DOWN) { 505dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float r = (deltaY - mTouchSlop * 1.0f) / mSlideAmount * 1.0f; 506839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN) r = 1 - r; 50732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setYProgress(1 - r); 50832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setXProgress(rx); 50932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return true; 51032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_UP) { 511dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float r = -(deltaY + mTouchSlop * 1.0f) / mSlideAmount * 1.0f; 512839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN) r = 1 - r; 51332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setYProgress(r); 51432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mStackSlider.setXProgress(rx); 51532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return true; 51644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 51744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 51844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 51944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_UP: { 52044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen handlePointerUp(ev); 52144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 52244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 52344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_POINTER_UP: { 52444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen onSecondaryPointerUp(ev); 52544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 52644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 52744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen case MotionEvent.ACTION_CANCEL: { 52844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 52944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 53044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen break; 53144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 53244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 53344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return true; 53444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 53544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 53644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void onSecondaryPointerUp(MotionEvent ev) { 53744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final int activePointerIndex = ev.getActionIndex(); 53844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen final int pointerId = ev.getPointerId(activePointerIndex); 53944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (pointerId == mActivePointerId) { 54044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 54196d8d56302da81b24333b204e6d7f15064538036Adam Cohen int activeViewIndex = (mSwipeGestureType == GESTURE_SLIDE_DOWN) ? 0 : 1; 54244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 54344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View v = getViewAtRelativeIndex(activeViewIndex); 54444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (v == null) return; 54544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 54644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Our primary pointer has gone up -- let's see if we can find 54744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // another pointer on the view. If so, then we should replace 54844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // our primary pointer with this new pointer and adjust things 54944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // so that the view doesn't jump 55044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int index = 0; index < ev.getPointerCount(); index++) { 55144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (index != activePointerIndex) { 55244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 55344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float x = ev.getX(index); 55444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float y = ev.getY(index); 55544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 556e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mTouchRect.set(v.getLeft(), v.getTop(), v.getRight(), v.getBottom()); 557e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy if (mTouchRect.contains(Math.round(x), Math.round(y))) { 55844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float oldX = ev.getX(activePointerIndex); 55944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float oldY = ev.getY(activePointerIndex); 56044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 56144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // adjust our frame of reference to avoid a jump 56244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialY += (y - oldY); 56344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mInitialX += (x - oldX); 56444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 56544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = ev.getPointerId(index); 56644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker != null) { 56744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.clear(); 56844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 56944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // ok, we're good, we found a new pointer which is touching the active view 57044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return; 57144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 57244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 57344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 57444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // if we made it this far, it means we didn't find a satisfactory new pointer :(, 5753d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // so end the gesture 57644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen handlePointerUp(ev); 57744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 57844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 57944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 58044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private void handlePointerUp(MotionEvent ev) { 58144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int pointerIndex = ev.findPointerIndex(mActivePointerId); 58244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen float newY = ev.getY(pointerIndex); 58344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int deltaY = (int) (newY - mInitialY); 58444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5853d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mVelocityTracker != null) { 5863d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 5873d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mYVelocity = (int) mVelocityTracker.getYVelocity(mActivePointerId); 5883d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 58944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 59044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mVelocityTracker != null) { 59144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker.recycle(); 59244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mVelocityTracker = null; 59344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 59444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5953d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (deltaY > mSwipeThreshold && mSwipeGestureType == GESTURE_SLIDE_DOWN 5963d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mStackSlider.mMode == StackSlider.NORMAL_MODE) { 5970ac116b688380489c3690f6f65b282990c221f17Adam Cohen // We reset the gesture variable, because otherwise we will ignore showPrevious() / 5980ac116b688380489c3690f6f65b282990c221f17Adam Cohen // showNext(); 5990ac116b688380489c3690f6f65b282990c221f17Adam Cohen mSwipeGestureType = GESTURE_NONE; 6000ac116b688380489c3690f6f65b282990c221f17Adam Cohen 60144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Swipe threshold exceeded, swipe down 602839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 603839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen showPrevious(); 60496d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 60596d8d56302da81b24333b204e6d7f15064538036Adam Cohen showNext(); 606839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 60732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.bringToFront(); 6083d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else if (deltaY < -mSwipeThreshold && mSwipeGestureType == GESTURE_SLIDE_UP 6093d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mStackSlider.mMode == StackSlider.NORMAL_MODE) { 6100ac116b688380489c3690f6f65b282990c221f17Adam Cohen // We reset the gesture variable, because otherwise we will ignore showPrevious() / 6110ac116b688380489c3690f6f65b282990c221f17Adam Cohen // showNext(); 6120ac116b688380489c3690f6f65b282990c221f17Adam Cohen mSwipeGestureType = GESTURE_NONE; 6130ac116b688380489c3690f6f65b282990c221f17Adam Cohen 61444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Swipe threshold exceeded, swipe up 615839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP) { 616839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen showNext(); 61796d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 61896d8d56302da81b24333b204e6d7f15064538036Adam Cohen showPrevious(); 619839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 620839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 62132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mHighlight.bringToFront(); 622839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_UP ) { 62344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Didn't swipe up far enough, snap back down 624839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration; 625839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float finalYProgress = (mStackMode == ITEMS_SLIDE_DOWN) ? 1 : 0; 626839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_UP || mStackSlider.mMode != StackSlider.NORMAL_MODE) { 627839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForNeutralPosition()); 628839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 629839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForOffscreenPosition()); 630839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 63132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 632b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 6332794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackY = PropertyValuesHolder.ofFloat("YProgress", finalYProgress); 6342794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 6352794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 636839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen snapBackX, snapBackY); 6372794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(duration); 638839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.setInterpolator(new LinearInterpolator()); 639839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.start(); 64032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else if (mSwipeGestureType == GESTURE_SLIDE_DOWN) { 64144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Didn't swipe down far enough, snap back up 642839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float finalYProgress = (mStackMode == ITEMS_SLIDE_DOWN) ? 0 : 1; 643839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int duration; 644839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mStackMode == ITEMS_SLIDE_DOWN || mStackSlider.mMode != StackSlider.NORMAL_MODE) { 645839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForNeutralPosition()); 646839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 647839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration = Math.round(mStackSlider.getDurationForOffscreenPosition()); 648839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 6493d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 650b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen StackSlider animationSlider = new StackSlider(mStackSlider); 6512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackY = 6522794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder.ofFloat("YProgress",finalYProgress); 6532794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase PropertyValuesHolder snapBackX = PropertyValuesHolder.ofFloat("XProgress", 0.0f); 6542794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator pa = ObjectAnimator.ofPropertyValuesHolder(animationSlider, 655839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen snapBackX, snapBackY); 6562794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase pa.setDuration(duration); 657839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen pa.start(); 65844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 65944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 66044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActivePointerId = INVALID_POINTER; 66144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mSwipeGestureType = GESTURE_NONE; 66232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 66332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 66432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private class StackSlider { 66532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen View mView; 66632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float mYProgress; 66732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float mXProgress; 66832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 6693d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int NORMAL_MODE = 0; 6703d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int BEGINNING_OF_STACK_MODE = 1; 6713d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen static final int END_OF_STACK_MODE = 2; 6723d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 6733d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen int mMode = NORMAL_MODE; 6743d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 675b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public StackSlider() { 676b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 677b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 678b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public StackSlider(StackSlider copy) { 679b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mView = copy.mView; 680b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mYProgress = copy.mYProgress; 681b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mXProgress = copy.mXProgress; 6823d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mMode = copy.mMode; 683b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 684b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 68532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float cubic(float r) { 686839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (float) (Math.pow(2 * r - 1, 3) + 1) / 2.0f; 68732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 68832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 68932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float highlightAlphaInterpolator(float r) { 69032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float pivot = 0.4f; 69132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (r < pivot) { 692839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return 0.85f * cubic(r / pivot); 69332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else { 694839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return 0.85f * cubic(1 - (r - pivot) / (1 - pivot)); 69532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 69632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 69732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 69832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen private float viewAlphaInterpolator(float r) { 69932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen float pivot = 0.3f; 70032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (r > pivot) { 701839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (r - pivot) / (1 - pivot); 70232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } else { 70332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return 0; 70432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 70532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 70632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 707b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen private float rotationInterpolator(float r) { 708b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen float pivot = 0.2f; 709b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen if (r < pivot) { 710b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return 0; 711b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } else { 712839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (r - pivot) / (1 - pivot); 713b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 714b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 715b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 71632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen void setView(View v) { 71732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mView = v; 71832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 71932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 72032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen public void setYProgress(float r) { 72132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen // enforce r between 0 and 1 72232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen r = Math.min(1.0f, r); 72332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen r = Math.max(0, r); 72432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 72532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mYProgress = r; 726a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen if (mView == null) return; 727a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen 72832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 72932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams highlightLp = (LayoutParams) mHighlight.getLayoutParams(); 73032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 731839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int stackDirection = (mStackMode == ITEMS_SLIDE_UP) ? 1 : -1; 732839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 7333d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen switch (mMode) { 7343d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen case NORMAL_MODE: 735dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(-r * stackDirection * mSlideAmount)); 736dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(-r * stackDirection * mSlideAmount)); 7373d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 7383d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 739839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float alpha = viewAlphaInterpolator(1 - r); 7403d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 7413d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // We make sure that views which can't be seen (have 0 alpha) are also invisible 7423d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen // so that they don't interfere with click events. 7433d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mView.getAlpha() == 0 && alpha != 0 && mView.getVisibility() != VISIBLE) { 7443d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setVisibility(VISIBLE); 7453d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } else if (alpha == 0 && mView.getAlpha() != 0 7463d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen && mView.getVisibility() == VISIBLE) { 7473d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setVisibility(INVISIBLE); 7483d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 749b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 7503d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mView.setAlpha(alpha); 751839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mView.setRotationX(stackDirection * 90.0f * rotationInterpolator(r)); 752839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mHighlight.setRotationX(stackDirection * 90.0f * rotationInterpolator(r)); 7533d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 75496d8d56302da81b24333b204e6d7f15064538036Adam Cohen case END_OF_STACK_MODE: 755839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen r = r * 0.2f; 756dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(-stackDirection * r * mSlideAmount)); 757dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(-stackDirection * r * mSlideAmount)); 7583d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 7593d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 76096d8d56302da81b24333b204e6d7f15064538036Adam Cohen case BEGINNING_OF_STACK_MODE: 761839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen r = (1-r) * 0.2f; 762dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setVerticalOffset(Math.round(stackDirection * r * mSlideAmount)); 763dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setVerticalOffset(Math.round(stackDirection * r * mSlideAmount)); 7643d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mHighlight.setAlpha(highlightAlphaInterpolator(r)); 7653d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen break; 766b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 76732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 76832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 76932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen public void setXProgress(float r) { 77032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen // enforce r between 0 and 1 7713d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r = Math.min(2.0f, r); 7723d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r = Math.max(-2.0f, r); 77332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 77432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mXProgress = r; 77532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 776a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen if (mView == null) return; 77732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 77832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen final LayoutParams highlightLp = (LayoutParams) mHighlight.getLayoutParams(); 77932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 7803d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen r *= 0.2f; 781dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen viewLp.setHorizontalOffset(Math.round(r * mSlideAmount)); 782dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen highlightLp.setHorizontalOffset(Math.round(r * mSlideAmount)); 78332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 78432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 7853d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen void setMode(int mode) { 7863d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen mMode = mode; 7873d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 7883d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 7893d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen float getDurationForNeutralPosition() { 790839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(false, 0); 7913d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 7923d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 7933d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen float getDurationForOffscreenPosition() { 794839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(true, 0); 795839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 796839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 797839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float getDurationForNeutralPosition(float velocity) { 798839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(false, velocity); 799839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 800839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 801839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float getDurationForOffscreenPosition(float velocity) { 802839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(true, velocity); 8033d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 8043d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 805839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private float getDuration(boolean invert, float velocity) { 8063d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (mView != null) { 8073d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen final LayoutParams viewLp = (LayoutParams) mView.getLayoutParams(); 8083d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 809839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float d = (float) Math.sqrt(Math.pow(viewLp.horizontalOffset, 2) + 810839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen Math.pow(viewLp.verticalOffset, 2)); 811dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen float maxd = (float) Math.sqrt(Math.pow(mSlideAmount, 2) + 812dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen Math.pow(0.4f * mSlideAmount, 2)); 813839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 814839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (velocity == 0) { 815839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return (invert ? (1 - d / maxd) : d / maxd) * DEFAULT_ANIMATION_DURATION; 816839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 817839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float duration = invert ? d / Math.abs(velocity) : 818839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen (maxd - d) / Math.abs(velocity); 819839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (duration < MINIMUM_ANIMATION_DURATION || 820839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen duration > DEFAULT_ANIMATION_DURATION) { 821839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return getDuration(invert, 0); 822839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else { 823839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen return duration; 824839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 825839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 8263d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 8273d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen return 0; 8283d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 8293d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 830e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy // Used for animations 831e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"UnusedDeclaration"}) 832839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen public float getYProgress() { 83332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return mYProgress; 83432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 83532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 836e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy // Used for animations 837e5ebcb0107a939395e03592fd44c746cd09e311dRomain Guy @SuppressWarnings({"UnusedDeclaration"}) 838839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen public float getXProgress() { 83932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen return mXProgress; 84032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 84144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 84244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 84344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 84444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public void onRemoteAdapterConnected() { 84544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen super.onRemoteAdapterConnected(); 8461480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen // On first run, we want to set the stack to the end. 84796d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (mWhichChild == -1) { 84896d8d56302da81b24333b204e6d7f15064538036Adam Cohen mWhichChild = 0; 8493042944c6ec68210ba1746540b53789e70d15ef4Adam Cohen } 85096d8d56302da81b24333b204e6d7f15064538036Adam Cohen setDisplayedChild(mWhichChild); 85144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 85232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 8539b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams createOrReuseLayoutParams(View v) { 8549b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final ViewGroup.LayoutParams currentLp = v.getLayoutParams(); 8559b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (currentLp instanceof LayoutParams) { 8569b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams lp = (LayoutParams) currentLp; 8579b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen lp.setHorizontalOffset(0); 8589b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen lp.setVerticalOffset(0); 859839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen lp.width = 0; 860839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen lp.width = 0; 8619b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return lp; 8629b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 8639b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return new LayoutParams(v); 86432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 86532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 8669b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen @Override 8679b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 8689b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen boolean dataChanged = mDataChanged; 8699b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (dataChanged) { 8709b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen handleDataChanged(); 8719b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 8729b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen // if the data changes, mWhichChild might be out of the bounds of the adapter 8739b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen // in this case, we reset mWhichChild to the beginning 8749b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (mWhichChild >= mAdapter.getCount()) 8759b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mWhichChild = 0; 8769b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 8779b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen showOnly(mWhichChild, true, true); 8786364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung refreshChildren(); 8799b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 8809b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 8819b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final int childCount = getChildCount(); 8829b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen for (int i = 0; i < childCount; i++) { 8839b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen final View child = getChildAt(i); 8849b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 8859b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int childRight = mPaddingLeft + child.getMeasuredWidth(); 8869b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int childBottom = mPaddingTop + child.getMeasuredHeight(); 8879b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams lp = (LayoutParams) child.getLayoutParams(); 8889b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 8899b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen child.layout(mPaddingLeft + lp.horizontalOffset, mPaddingTop + lp.verticalOffset, 8909b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen childRight + lp.horizontalOffset, childBottom + lp.verticalOffset); 8919b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 8929b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 8939b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 8949b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mDataChanged = false; 8959b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen onLayout(); 8969b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 8979b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 898839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private void measureChildren() { 899839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int count = getChildCount(); 900839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int childWidth = mMeasuredWidth - mPaddingLeft - mPaddingRight; 901839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int childHeight = Math.round(mMeasuredHeight*(1-PERSPECTIVE_SHIFT_FACTOR)) 902839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen - mPaddingTop - mPaddingBottom; 903839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 904839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen for (int i = 0; i < count; i++) { 905839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final View child = getChildAt(i); 906839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen child.measure(MeasureSpec.makeMeasureSpec(childWidth, MeasureSpec.EXACTLY), 907839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen MeasureSpec.makeMeasureSpec(childHeight, MeasureSpec.EXACTLY)); 908839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 909839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 910839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 911839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen @Override 912839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 913839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec); 914839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec); 915839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec); 916839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec); 917839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 918839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen boolean haveChildRefSize = (mReferenceChildWidth != -1 && mReferenceChildHeight != -1); 919839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 920839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // We need to deal with the case where our parent hasn't told us how 921839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // big we should be. In this case we should 922839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float factor = 1/(1 - PERSPECTIVE_SHIFT_FACTOR); 923839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (heightSpecMode == MeasureSpec.UNSPECIFIED) { 924839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen heightSpecSize = haveChildRefSize ? 925839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen Math.round(mReferenceChildHeight * (1 + factor)) + 926839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mPaddingTop + mPaddingBottom : 0; 927839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (heightSpecMode == MeasureSpec.AT_MOST) { 928839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen heightSpecSize = haveChildRefSize ? Math.min( 929839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen Math.round(mReferenceChildHeight * (1 + factor)) + mPaddingTop + 930839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mPaddingBottom, heightSpecSize) : 0; 931839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 932839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 933839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (widthSpecMode == MeasureSpec.UNSPECIFIED) { 934839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen widthSpecSize = haveChildRefSize ? mReferenceChildWidth + mPaddingLeft + 935839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mPaddingRight : 0; 936839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (heightSpecMode == MeasureSpec.AT_MOST) { 937839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen widthSpecSize = haveChildRefSize ? Math.min(mReferenceChildWidth + mPaddingLeft + 938839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mPaddingRight, widthSpecSize) : 0; 939839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 940839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 941839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen setMeasuredDimension(widthSpecSize, heightSpecSize); 942839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen measureChildren(); 943839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 944839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 9459b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen class LayoutParams extends ViewGroup.LayoutParams { 9469b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int horizontalOffset; 9479b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int verticalOffset; 9489b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen View mView; 949d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect parentRect = new Rect(); 950d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect invalidateRect = new Rect(); 951d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final RectF invalidateRectf = new RectF(); 952d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen private final Rect globalInvalidateRect = new Rect(); 9539b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 9549b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams(View view) { 9559b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen super(0, 0); 956839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen width = 0; 957839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen height = 0; 9589b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = 0; 9599b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen verticalOffset = 0; 9609b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView = view; 9619b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 9629b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 9639b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams(Context c, AttributeSet attrs) { 9649b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen super(c, attrs); 9659b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = 0; 9669b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen verticalOffset = 0; 967839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen width = 0; 968839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen height = 0; 969b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 970b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 9719b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen void invalidateGlobalRegion(View v, Rect r) { 972d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen // We need to make a new rect here, so as not to modify the one passed 973d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.set(r); 9749b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen View p = v; 9759b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (!(v.getParent() != null && v.getParent() instanceof View)) return; 9769b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 9779b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen boolean firstPass = true; 9789b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen parentRect.set(0, 0, 0, 0); 9799b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen int depth = 0; 980b7f4d030a2ed9301bf47c41fefc1b338f4347ffeAdam Cohen while (p.getParent() != null && p.getParent() instanceof View 981d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen && !parentRect.contains(globalInvalidateRect)) { 9829b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (!firstPass) { 983d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.offset(p.getLeft() - p.getScrollX(), p.getTop() 984d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen - p.getScrollY()); 9859b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen depth++; 9869b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 9879b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen firstPass = false; 9889b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen p = (View) p.getParent(); 989b7f4d030a2ed9301bf47c41fefc1b338f4347ffeAdam Cohen parentRect.set(p.getScrollX(), p.getScrollY(), 990b7f4d030a2ed9301bf47c41fefc1b338f4347ffeAdam Cohen p.getWidth() + p.getScrollX(), p.getHeight() + p.getScrollY()); 991839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 9929b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 9939b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 994d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen p.invalidate(globalInvalidateRect.left, globalInvalidateRect.top, 995d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen globalInvalidateRect.right, globalInvalidateRect.bottom); 996d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen } 997d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen 998d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen Rect getInvalidateRect() { 999d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen return invalidateRect; 1000d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen } 10019b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1002d51bbb5b56446519db88f49f2682da782b0069acAdam Cohen void resetInvalidateRect() { 10030ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRect.set(0, 0, 0, 0); 10049b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 100532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1006a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haase // This is public so that ObjectAnimator can access it 10079b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen public void setVerticalOffset(int newVerticalOffset) { 10080ac116b688380489c3690f6f65b282990c221f17Adam Cohen setOffsets(horizontalOffset, newVerticalOffset); 10099b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 10109b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 10119b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen public void setHorizontalOffset(int newHorizontalOffset) { 10120ac116b688380489c3690f6f65b282990c221f17Adam Cohen setOffsets(newHorizontalOffset, verticalOffset); 10130ac116b688380489c3690f6f65b282990c221f17Adam Cohen } 10140ac116b688380489c3690f6f65b282990c221f17Adam Cohen 10150ac116b688380489c3690f6f65b282990c221f17Adam Cohen public void setOffsets(int newHorizontalOffset, int newVerticalOffset) { 10160ac116b688380489c3690f6f65b282990c221f17Adam Cohen int horizontalOffsetDelta = newHorizontalOffset - horizontalOffset; 10179b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen horizontalOffset = newHorizontalOffset; 10180ac116b688380489c3690f6f65b282990c221f17Adam Cohen int verticalOffsetDelta = newVerticalOffset - verticalOffset; 10190ac116b688380489c3690f6f65b282990c221f17Adam Cohen verticalOffset = newVerticalOffset; 10209b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 10219b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (mView != null) { 10229b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView.requestLayout(); 10230ac116b688380489c3690f6f65b282990c221f17Adam Cohen int left = Math.min(mView.getLeft() + horizontalOffsetDelta, mView.getLeft()); 10240ac116b688380489c3690f6f65b282990c221f17Adam Cohen int right = Math.max(mView.getRight() + horizontalOffsetDelta, mView.getRight()); 10250ac116b688380489c3690f6f65b282990c221f17Adam Cohen int top = Math.min(mView.getTop() + verticalOffsetDelta, mView.getTop()); 10260ac116b688380489c3690f6f65b282990c221f17Adam Cohen int bottom = Math.max(mView.getBottom() + verticalOffsetDelta, mView.getBottom()); 10270ac116b688380489c3690f6f65b282990c221f17Adam Cohen 10280ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRectf.set(left, top, right, bottom); 10299b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 10309b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float xoffset = -invalidateRectf.left; 10319b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float yoffset = -invalidateRectf.top; 10329b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateRectf.offset(xoffset, yoffset); 10339b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mView.getMatrix().mapRect(invalidateRectf); 10349b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateRectf.offset(-xoffset, -yoffset); 10359b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 10360ac116b688380489c3690f6f65b282990c221f17Adam Cohen invalidateRect.set((int) Math.floor(invalidateRectf.left), 10379b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.floor(invalidateRectf.top), 10389b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.ceil(invalidateRectf.right), 10399b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen (int) Math.ceil(invalidateRectf.bottom)); 10409b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 10419b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen invalidateGlobalRegion(mView, invalidateRect); 10429b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 10439b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 104432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 104532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 10469b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private static class HolographicHelper { 10479b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private final Paint mHolographicPaint = new Paint(); 10489b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen private final Paint mErasePaint = new Paint(); 1049839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private final Paint mBlurPaint = new Paint(); 10508baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private static final int RES_OUT = 0; 10518baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private static final int CLICK_FEEDBACK = 1; 10528baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen private float mDensity; 1053e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private BlurMaskFilter mSmallBlurMaskFilter; 1054e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private BlurMaskFilter mLargeBlurMaskFilter; 1055e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Canvas mCanvas = new Canvas(); 1056e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Canvas mMaskCanvas = new Canvas(); 1057e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final int[] mTmpXY = new int[2]; 1058e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy private final Matrix mIdentityMatrix = new Matrix(); 105932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 1060dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen HolographicHelper(Context context) { 10618baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mDensity = context.getResources().getDisplayMetrics().density; 1062dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 10639b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mHolographicPaint.setFilterBitmap(true); 1064839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mHolographicPaint.setMaskFilter(TableMaskFilter.CreateClipTable(0, 30)); 10659b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mErasePaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_OUT)); 10669b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mErasePaint.setFilterBitmap(true); 1067e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy 1068e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mSmallBlurMaskFilter = new BlurMaskFilter(2 * mDensity, BlurMaskFilter.Blur.NORMAL); 1069e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mLargeBlurMaskFilter = new BlurMaskFilter(4 * mDensity, BlurMaskFilter.Blur.NORMAL); 10709b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 10719b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 10729b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen Bitmap createOutline(View v) { 10738baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen return createOutline(v, RES_OUT); 10748baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 10758baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 10768baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen Bitmap createOutline(View v, int type) { 10778baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen if (type == RES_OUT) { 10788baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mHolographicPaint.setColor(0xff6699ff); 1079e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mBlurPaint.setMaskFilter(mSmallBlurMaskFilter); 10808baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } else if (type == CLICK_FEEDBACK) { 10818baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen mHolographicPaint.setColor(0x886699ff); 1082e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mBlurPaint.setMaskFilter(mLargeBlurMaskFilter); 10838baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen } 10848baf5df0fa5b3453a7f17e95746c5d8cadc00163Adam Cohen 10859b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (v.getMeasuredWidth() == 0 || v.getMeasuredHeight() == 0) { 10869b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return null; 10879b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 10889b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 10899b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen Bitmap bitmap = Bitmap.createBitmap(v.getMeasuredWidth(), v.getMeasuredHeight(), 10909b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen Bitmap.Config.ARGB_8888); 1091e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mCanvas.setBitmap(bitmap); 109232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 10939b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen float rotationX = v.getRotationX(); 1094839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float rotation = v.getRotation(); 1095839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen float translationY = v.getTranslationY(); 10969b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen v.setRotationX(0); 1097839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setRotation(0); 1098839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setTranslationY(0); 1099e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy v.draw(mCanvas); 11009b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen v.setRotationX(rotationX); 1101839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setRotation(rotation); 1102839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen v.setTranslationY(translationY); 11039b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 1104e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy drawOutline(mCanvas, bitmap); 11059b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return bitmap; 11069b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 11079b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen 11089b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen void drawOutline(Canvas dest, Bitmap src) { 1109e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy final int[] xy = mTmpXY; 1110839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen Bitmap mask = src.extractAlpha(mBlurPaint, xy); 1111e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mMaskCanvas.setBitmap(mask); 1112e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy mMaskCanvas.drawBitmap(src, -xy[0], -xy[1], mErasePaint); 11139b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen dest.drawColor(0, PorterDuff.Mode.CLEAR); 1114e80202d5c3c2a45cc34976e09958883e5366f1bbPatrick Dubroy dest.setMatrix(mIdentityMatrix); 1115839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen dest.drawBitmap(mask, xy[0], xy[1], mHolographicPaint); 11169b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen mask.recycle(); 11179b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen } 111832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 111944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen} 1120