试图使用回收的位图android.graphics.Bitmap

Question

我正在显示一个.gif文件activity A.当用户按下一个按钮时,用户移动到activity b同一个.gif显示在那里,但我正在"尝试使用回收的位图android.graphics.Bitmap"这个错误在我的activity b.

我从SD卡中显示.gif和对onStop()我设置imageview的activity a,以null中和activity A,但我没有能够解决这个问题.

在这种情况下请帮忙.

// Log Cat

12-31 10:58:49.819: E/AndroidRuntime(20903): java.lang.RuntimeException: Canvas: trying to use a recycled bitmap android.graphics.Bitmap@405131c8
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.graphics.Canvas.throwIfRecycled(Canvas.java:955)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.graphics.Canvas.drawBitmap(Canvas.java:1044)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:325)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.widget.ImageView.onDraw(ImageView.java:854)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.View.draw(View.java:6880)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.View.draw(View.java:6883)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.View.draw(View.java:6883)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.widget.FrameLayout.draw(FrameLayout.java:357)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.View.draw(View.java:6883)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.widget.FrameLayout.draw(FrameLayout.java:357)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1871)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewRoot.draw(ViewRoot.java:1542)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewRoot.performTraversals(ViewRoot.java:1269)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1883)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.os.Handler.dispatchMessage(Handler.java:99)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.os.Looper.loop(Looper.java:130)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at android.app.ActivityThread.main(ActivityThread.java:3737)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at java.lang.reflect.Method.invokeNative(Native Method)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at java.lang.reflect.Method.invoke(Method.java:507)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:894)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:652)
12-31 10:58:49.819: E/AndroidRuntime(20903):     at dalvik.system.NativeStart.main(Native Method)

Answer 1

您可以在回收位图之前进行检查,如:

if (img != null && !img.isRecycled()) 
{
 img.recycle(); 
 img = null;
 System.gc(); 
}

这里的img 是位图.尝试此类错误已解决.