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Make "Drag failed" animation comply with Material Design

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Adjust the duration to the travel distance (linearly between
195ms and 375ms).

Bug: 33000192
Test: manual
Change-Id: Idc827290b89a7c7a4c7b6c64edf4aaa4ac3f33e3
This commit is contained in:
Vladislav Kaznacheev
2016-11-18 15:06:08 -08:00
parent 76feb115c3
commit b3665f1737
1 changed files with 17 additions and 9 deletions
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26
services/core/java/com/android/server/wm/DragState.java
View File

@@ -68,7 +68,8 @@ import java.util.ArrayList;
* Drag/drop state
*/
class DragState {
private static final long ANIMATION_DURATION_MS = 500;
private static final long MIN_ANIMATION_DURATION_MS = 195;
private static final long MAX_ANIMATION_DURATION_MS = 375;
private static final int DRAG_FLAGS_URI_ACCESS = View.DRAG_FLAG_GLOBAL_URI_READ |
View.DRAG_FLAG_GLOBAL_URI_WRITE;
@@ -103,6 +104,7 @@ class DragState {
private Animation mAnimation;
final Transformation mTransformation = new Transformation();
private final Interpolator mCubicEaseOutInterpolator = new DecelerateInterpolator(1.5f);
private Point mDisplaySize = new Point();
DragState(WindowManagerService service, IBinder token, SurfaceControl surface,
int flags, IBinder localWin) {
@@ -171,10 +173,8 @@ class DragState {
// The drag window covers the entire display
mDragWindowHandle.frameLeft = 0;
mDragWindowHandle.frameTop = 0;
Point p = new Point();
display.getRealSize(p);
mDragWindowHandle.frameRight = p.x;
mDragWindowHandle.frameBottom = p.y;
mDragWindowHandle.frameRight = mDisplaySize.x;
mDragWindowHandle.frameBottom = mDisplaySize.y;
// Pause rotations before a drag.
if (DEBUG_ORIENTATION) {
@@ -215,6 +215,7 @@ class DragState {
* @param display The Display that the window being dragged is on.
*/
void register(Display display) {
display.getRealSize(mDisplaySize);
if (DEBUG_DRAG) Slog.d(TAG_WM, "registering drag input channel");
if (mInputInterceptor != null) {
Slog.e(TAG_WM, "Duplicate register of drag input channel");
@@ -583,10 +584,17 @@ class DragState {
private Animation createReturnAnimationLocked() {
final AnimationSet set = new AnimationSet(false);
set.addAnimation(new TranslateAnimation(
0, mOriginalX - mCurrentX, 0, mOriginalY - mCurrentY));
final float translateX = mOriginalX - mCurrentX;
final float translateY = mOriginalY - mCurrentY;
set.addAnimation(new TranslateAnimation( 0, translateX, 0, translateY));
set.addAnimation(new AlphaAnimation(mOriginalAlpha, mOriginalAlpha / 2));
set.setDuration(ANIMATION_DURATION_MS);
// Adjust the duration to the travel distance.
final double travelDistance = Math.sqrt(translateX * translateX + translateY * translateY);
final double displayDiagonal =
Math.sqrt(mDisplaySize.x * mDisplaySize.x + mDisplaySize.y * mDisplaySize.y);
final long duration = MIN_ANIMATION_DURATION_MS + (long) (travelDistance / displayDiagonal
* (MAX_ANIMATION_DURATION_MS - MIN_ANIMATION_DURATION_MS));
set.setDuration(duration);
set.setInterpolator(mCubicEaseOutInterpolator);
set.initialize(0, 0, 0, 0);
set.start(); // Will start on the first call to getTransformation.
@@ -597,7 +605,7 @@ class DragState {
final AnimationSet set = new AnimationSet(false);
set.addAnimation(new ScaleAnimation(1, 0, 1, 0, mThumbOffsetX, mThumbOffsetY));
set.addAnimation(new AlphaAnimation(mOriginalAlpha, 0));
set.setDuration(ANIMATION_DURATION_MS);
set.setDuration(MIN_ANIMATION_DURATION_MS);
set.setInterpolator(mCubicEaseOutInterpolator);
set.initialize(0, 0, 0, 0);
set.start(); // Will start on the first call to getTransformation.