drgreen/android_frameworks_base
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Save most recent thumbnail Bitmap for reuse.

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This keeps Recents from taking two identical screenshots, one for
the Recents thumbnail and one for the pause activity thumbnail.

Fixes bug 7351766.

Change-Id: Ia4d12802151666ec36e4d9b395cf10e1e02dc37f
This commit is contained in:
Craig Mautner
2012-12-20 16:07:06 -08:00
parent 5b88cd7218
commit b12428a128
1 changed files with 18 additions and 2 deletions
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20
services/java/com/android/server/am/ActivityStack.java
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@ -45,6 +45,7 @@ import android.content.pm.ResolveInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.os.Binder;
import android.os.Bundle;
import android.os.Handler;
@ -280,6 +281,13 @@ final class ActivityStack {
*/
boolean mDismissKeyguardOnNextActivity = false;
/**
* Save the most recent screenshot for reuse. This keeps Recents from taking two identical
* screenshots, one for the Recents thumbnail and one for the pauseActivity thumbnail.
*/
private ActivityRecord mLastScreenshotActivity = null;
private Bitmap mLastScreenshotBitmap = null;
int mThumbnailWidth = -1;
int mThumbnailHeight = -1;
@ -931,8 +939,16 @@ final class ActivityStack {
}
if (w > 0) {
return mService.mWindowManager.screenshotApplications(who.appToken,
Display.DEFAULT_DISPLAY, w, h);
if (who != mLastScreenshotActivity || mLastScreenshotBitmap == null
|| mLastScreenshotBitmap.getWidth() != w
|| mLastScreenshotBitmap.getHeight() != h) {
mLastScreenshotActivity = who;
mLastScreenshotBitmap = mService.mWindowManager.screenshotApplications(
who.appToken, Display.DEFAULT_DISPLAY, w, h);
}
if (mLastScreenshotBitmap != null) {
return mLastScreenshotBitmap.copy(Config.ARGB_8888, true);
}
}
return null;
}