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Fix minor transition bugs

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TransitionGroup.setDuration() was not propagating the new duration to
future child transitions correctly.

Also, Fade should restore a fully-opaque value when a transition ends, to prevent
the problem of mid-stream canceled transitions causing vie3ws to get stuck with partially
faded-in alpha values.

Issue #9755995 Transitions: TransitionGroup.setDuration() not handled correctly
Issue #9756655 Transitions: handle fading cancelation better

Change-Id: Id44569c6f4152a26ee382d04c30a2f035a1ebcf3
This commit is contained in:
Chet Haase
2013-07-10 11:27:54 -07:00
parent 0d21c220dd
commit dc57d9dda5
5 changed files with 114 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
core/java/android/view/transition/Fade.java
View File

@@ -96,12 +96,19 @@ public class Fade extends Visibility {
protected Animator appear(ViewGroup sceneRoot,
TransitionValues startValues, int startVisibility,
TransitionValues endValues, int endVisibility) {
View endView = (endValues != null) ? endValues.view : null;
if ((mFadingMode & IN) != IN) {
if ((mFadingMode & IN) != IN || endValues == null) {
return null;
}
final View endView = endValues.view;
endView.setAlpha(0);
return runAnimation(endView, 0, 1, null);
final Animator.AnimatorListener endListener = new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
// Always end animation with full alpha, in case it's canceled mid-stream
endView.setAlpha(1);
}
};
return runAnimation(endView, 0, 1, endListener);
}
@Override

2
core/java/android/view/transition/TransitionGroup.java
View File

@@ -104,7 +104,7 @@ public class TransitionGroup extends Transition {
mTransitions.add(transitions[i]);
transitions[i].mParent = this;
if (mDuration >= 0) {
transitions[0].setDuration(mDuration);
transitions[i].setDuration(mDuration);
}
}
}

7
tests/TransitionTests/AndroidManifest.xml
View File

@@ -233,6 +233,13 @@
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:label="CrossfadeImage"
android:name=".CrossfadeImage">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

28
tests/TransitionTests/res/layout/crossfade_image.xml Normal file
View File

@@ -0,0 +1,28 @@
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/self_portrait_square_100"
android:onClick="sendMessage"
android:id="@+id/contact_picture"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/self_portrait_square_100"
android:onClick="sendMessage"
android:id="@+id/contact_picture1"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/self_portrait_square_100"
android:onClick="sendMessage"
android:id="@+id/contact_picture2"/>
</LinearLayout>

68
tests/TransitionTests/src/com/android/transitiontests/CrossfadeImage.java Normal file
View File

@@ -0,0 +1,68 @@
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.transitiontests;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.transition.Crossfade;
import android.view.transition.Move;
import android.view.transition.Scene;
import android.view.transition.Transition;
import android.view.transition.TransitionGroup;
import android.view.transition.TransitionManager;
import android.widget.ImageView;
public class CrossfadeImage extends Activity {
ViewGroup mSceneRoot;
static int mCurrentScene;
Scene mScene1, mScene2;
TransitionManager mTransitionManager;
boolean mExpanded = false;
Transition mTransition;
ImageView mImageView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.crossfade_image);
ViewGroup container = (ViewGroup) findViewById(R.id.container);
mSceneRoot = container;
mImageView = (ImageView) findViewById(R.id.contact_picture);
mImageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
Crossfade mCrossfade = new Crossfade();
mCrossfade.setTargetIds(R.id.contact_picture);
TransitionGroup group = new TransitionGroup();
group.setDuration(1500);
group.addTransitions(mCrossfade, new Move());
mTransition = group;
}
public void sendMessage(View view) {
TransitionManager.beginDelayedTransition(mSceneRoot, mTransition);
if (mExpanded) {
mImageView.setImageResource(R.drawable.self_portrait_square_100);
} else {
mImageView.setImageResource(R.drawable.self_portrait_square_200);
}
mExpanded = !mExpanded;
}
}