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am f1526de2: Merge "Transfer image of shared element to launched Activity."

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* commit 'f1526de298e4bfbf1378ba70e04f88286b2f5594':
  Transfer image of shared element to launched Activity.
This commit is contained in:
George Mount
2014-04-29 21:33:25 +00:00
committed by Android Git Automerger
parent b50f068cdd f31d367a5c
commit 97ff65442a
7 changed files with 162 additions and 28 deletions
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38
core/java/android/app/ActivityOptions.java
View File

@@ -649,13 +649,31 @@ public class ActivityOptions {
/**
* Called when the start state for shared elements is captured on enter.
*
* @param sharedElementNames The names of the shared elements that were accepted into
* the View hierarchy.
* @param sharedElements The shared elements that are part of the View hierarchy.
* @param sharedElementSnapshots The Views containing snap shots of the shared element
* from the launching Window. These elements will not
* be part of the scene, but will be positioned relative
* to the Window decor View.
*/
public void onCaptureSharedElementStart() {}
public void onCaptureSharedElementStart(List<String> sharedElementNames,
List<View> sharedElements, List<View> sharedElementSnapshots) {}
/**
* Called when the end state for shared elements is captured on enter.
*
* @param sharedElementNames The names of the shared elements that were accepted into
* the View hierarchy.
* @param sharedElements The shared elements that are part of the View hierarchy.
* @param sharedElementSnapshots The Views containing snap shots of the shared element
* from the launching Window. These elements will not
* be part of the scene, but will be positioned relative
* to the Window decor View.
*/
public void onCaptureSharedElementEnd() {}
public void onCaptureSharedElementEnd(List<String> sharedElementNames,
List<View> sharedElements, List<View> sharedElementSnapshots) {}
/**
* Called when the enter Transition has been started.
@@ -700,6 +718,22 @@ public class ActivityOptions {
* call.
*/
public Pair<View, String>[] getSharedElementsMapping() { return null; }
/**
* Returns <code>true</code> if the ActivityTransitionListener will handle removing
* rejected shared elements from the scene. If <code>false</code> is returned, a default
* animation will be used to remove the rejected shared elements from the scene.
*
* @param rejectedSharedElements Views containing visual information of shared elements
* that are not part of the entering scene. These Views
* are positioned relative to the Window decor View.
* @return <code>false</code> if the default animation should be used to remove the
* rejected shared elements from the scene or <code>true</code> if the listener provides
* custom handling.
*/
public boolean handleRejectedSharedElements(List<View> rejectedSharedElements) {
return false;
}
}
private static class SharedElementMappingListener extends ActivityTransitionListener {

134
core/java/android/app/ActivityTransitionCoordinator.java
View File

@@ -15,6 +15,12 @@
*/
package android.app;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ObjectAnimator;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.os.Bundle;
import android.os.Handler;
@@ -26,8 +32,10 @@ import android.util.ArrayMap;
import android.util.Pair;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroupOverlay;
import android.view.ViewTreeObserver;
import android.view.Window;
import android.widget.ImageView;
import java.util.ArrayList;
import java.util.Collection;
@@ -129,6 +137,7 @@ abstract class ActivityTransitionCoordinator extends ResultReceiver {
private static final String KEY_WIDTH = "shared_element:width";
private static final String KEY_HEIGHT = "shared_element:height";
private static final String KEY_NAME = "shared_element:name";
private static final String KEY_BITMAP = "shared_element:bitmap";
/**
* Sent by the exiting coordinator (either EnterTransitionCoordinator
@@ -305,16 +314,23 @@ abstract class ActivityTransitionCoordinator extends ResultReceiver {
setSharedElements();
reconcileSharedElements(sharedElementNames);
mEnteringViews.removeAll(mSharedElements);
setSharedElementState(state);
final ArrayList<View> accepted = new ArrayList<View>();
final ArrayList<View> rejected = new ArrayList<View>();
createSharedElementImages(accepted, rejected, sharedElementNames, state);
setSharedElementState(state, accepted);
handleRejected(rejected);
if (getViewsTransition() != null) {
setViewVisibility(mEnteringViews, View.INVISIBLE);
}
setViewVisibility(mSharedElements, View.VISIBLE);
Transition transition = beginTransition(mEnteringViews, true, allowOverlappingTransitions(),
true);
if (allowOverlappingTransitions()) {
onStartEnterTransition(transition, mEnteringViews);
}
mRemoteResultReceiver.send(MSG_HIDE_SHARED_ELEMENTS, null);
}
@@ -513,35 +529,59 @@ abstract class ActivityTransitionCoordinator extends ResultReceiver {
}
private void reconcileSharedElements(ArrayList<String> sharedElementNames) {
Rect epicenter = null;
for (int i = mTargetSharedNames.size() - 1; i >= 0; i--) {
if (!sharedElementNames.contains(mTargetSharedNames.get(i))) {
mTargetSharedNames.remove(i);
mSharedElements.remove(i);
// keep only those that are in sharedElementNames.
int numSharedElements = sharedElementNames.size();
int targetIndex = 0;
for (int i = 0; i < numSharedElements; i++) {
String name = sharedElementNames.get(i);
int index = mTargetSharedNames.indexOf(name);
if (index >= 0) {
// Swap the items at the indexes if necessary.
if (index != targetIndex) {
View temp = mSharedElements.get(index);
mSharedElements.set(index, mSharedElements.get(targetIndex));
mSharedElements.set(targetIndex, temp);
mTargetSharedNames.set(index, mTargetSharedNames.get(targetIndex));
mTargetSharedNames.set(targetIndex, name);
}
targetIndex++;
}
}
if (!mSharedElements.isEmpty()) {
for (int i = mSharedElements.size() - 1; i >= targetIndex; i--) {
mSharedElements.remove(i);
mTargetSharedNames.remove(i);
}
Rect epicenter = null;
if (!mTargetSharedNames.isEmpty()
&& mTargetSharedNames.get(0).equals(sharedElementNames.get(0))) {
epicenter = calcEpicenter(mSharedElements.get(0));
}
mEpicenterCallback.setEpicenter(epicenter);
}
private void setSharedElementState(Bundle sharedElementState) {
private void setSharedElementState(Bundle sharedElementState,
final ArrayList<View> acceptedOverlayViews) {
final int[] tempLoc = new int[2];
if (sharedElementState != null) {
int[] tempLoc = new int[2];
for (int i = 0; i < mSharedElements.size(); i++) {
View sharedElement = mSharedElements.get(i);
View parent = (View) sharedElement.getParent();
parent.getLocationOnScreen(tempLoc);
String name = mTargetSharedNames.get(i);
setSharedElementState(sharedElement, name, sharedElementState, tempLoc);
sharedElement.requestLayout();
}
}
mListener.onCaptureSharedElementStart();
mListener.onCaptureSharedElementStart(mTargetSharedNames, mSharedElements,
acceptedOverlayViews);
getDecor().getViewTreeObserver().addOnPreDrawListener(
new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
getDecor().getViewTreeObserver().removeOnPreDrawListener(this);
mListener.onCaptureSharedElementEnd();
mListener.onCaptureSharedElementEnd(mTargetSharedNames, mSharedElements,
acceptedOverlayViews);
return true;
}
}
@@ -555,10 +595,10 @@ abstract class ActivityTransitionCoordinator extends ResultReceiver {
* @param name The shared element name given from the source Activity.
* @param transitionArgs A <code>Bundle</code> containing all placementinformation for named
* shared elements in the scene.
* @param tempLoc A temporary int[2] for capturing the current location of views.
* @param parentLoc The x and y coordinates of the parent's screen position.
*/
private static void setSharedElementState(View view, String name, Bundle transitionArgs,
int[] tempLoc) {
int[] parentLoc) {
Bundle sharedElementBundle = transitionArgs.getBundle(name);
if (sharedElementBundle == null) {
return;
@@ -576,15 +616,11 @@ abstract class ActivityTransitionCoordinator extends ResultReceiver {
int heightSpec = View.MeasureSpec.makeMeasureSpec(height, View.MeasureSpec.EXACTLY);
view.measure(widthSpec, heightSpec);
ViewGroup parent = (ViewGroup) view.getParent();
parent.getLocationOnScreen(tempLoc);
int left = x - tempLoc[0];
int top = y - tempLoc[1];
int left = x - parentLoc[0];
int top = y - parentLoc[1];
int right = left + width;
int bottom = top + height;
view.layout(left, top, right, bottom);
view.requestLayout();
}
/**
@@ -615,6 +651,11 @@ abstract class ActivityTransitionCoordinator extends ResultReceiver {
sharedElementBundle.putString(KEY_NAME, view.getSharedElementName());
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
view.draw(canvas);
sharedElementBundle.putParcelable(KEY_BITMAP, bitmap);
transitionArgs.putBundle(name, sharedElementBundle);
}
@@ -723,6 +764,61 @@ abstract class ActivityTransitionCoordinator extends ResultReceiver {
return transition;
}
private void handleRejected(final ArrayList<View> rejected) {
int numRejected = rejected.size();
if (numRejected == 0) {
return;
}
boolean rejectionHandled = mListener.handleRejectedSharedElements(rejected);
if (rejectionHandled) {
return;
}
ViewGroupOverlay overlay = getDecor().getOverlay();
ObjectAnimator animator = null;
for (int i = 0; i < numRejected; i++) {
View view = rejected.get(i);
overlay.add(view);
animator = ObjectAnimator.ofFloat(view, View.ALPHA, 1, 0);
animator.start();
}
animator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
ViewGroupOverlay overlay = getDecor().getOverlay();
for (int i = rejected.size() - 1; i >= 0; i--) {
overlay.remove(rejected.get(i));
}
}
});
}
private void createSharedElementImages(ArrayList<View> accepted, ArrayList<View> rejected,
ArrayList<String> sharedElementNames, Bundle state) {
int numSharedElements = sharedElementNames.size();
Context context = getWindow().getContext();
int[] parentLoc = new int[2];
getDecor().getLocationOnScreen(parentLoc);
for (int i = 0; i < numSharedElements; i++) {
String name = sharedElementNames.get(i);
Bundle sharedElementBundle = state.getBundle(name);
if (sharedElementBundle != null) {
Bitmap bitmap = sharedElementBundle.getParcelable(KEY_BITMAP);
ImageView imageView = new ImageView(context);
imageView.setId(com.android.internal.R.id.shared_element);
imageView.setScaleType(ImageView.ScaleType.CENTER);
imageView.setImageBitmap(bitmap);
imageView.setSharedElementName(name);
setSharedElementState(imageView, name, state, parentLoc);
if (mTargetSharedNames.contains(name)) {
accepted.add(imageView);
} else {
rejected.add(imageView);
}
}
}
}
private static class FixedEpicenterCallback extends Transition.EpicenterCallback {
private Rect mEpicenter;

2
core/java/android/app/EnterTransitionCoordinator.java
View File

@@ -264,7 +264,6 @@ class EnterTransitionCoordinator extends ActivityTransitionCoordinator
mExitTransitionComplete = true;
exitAfterSharedElementTransition();
super.onExitTransitionEnd();
clearConnections();
}
@Override
@@ -287,6 +286,7 @@ class EnterTransitionCoordinator extends ActivityTransitionCoordinator
mActivity.overridePendingTransition(0, 0);
}
notifyExitTransitionComplete();
clearConnections();
}
}
}