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我的应用程序具有带有ImageView和TextView的小部件。在WidgetProvider的的onUpdate（）方法，我把一个位图中的ImageView里这样说：具有位图的小部件上的RuntimeException（Android）
Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.widget_btn);
Bitmap bitmap2 = BitmapManager.setColor(bitmap, red, green, blue);
views.setImageViewBitmap(R.id.image, bitmap2);
的setColor（）方法是这样的：
public synchronized static Bitmap setColor(Bitmap org, float r, float g, float b)
{
sColorMatrix.setScale(r, g, b, 1);
sColorPaint.setColorFilter(new ColorMatrixColorFilter(sColorMatrix));
// RGB_565 is faster, but loses transparency
Bitmap ret = Bitmap.createBitmap(org.getWidth(), org.getHeight(), Bitmap.Config.ARGB_8888);
try{
sColorCanvas.setBitmap(ret);
//sColorCanvas.drawColor(Color.);
sColorCanvas.drawBitmap(org, 0, 0, sColorPaint);
} catch (Throwable t){
}
return ret;
}
的问题是，有时小部件抛出一个RuntimeException因为有人已经回收了Bitmap，我不知道该怎么做。一些建议？
我可以附加堆栈跟踪，如果它可以是有用的。谢谢！
这是堆栈跟踪：
java.lang.RuntimeException: Canvas: trying to use a recycled bitmap [email protected]
at android.graphics.Canvas.throwIfRecycled(Canvas.java:955)
at android.graphics.Canvas.drawBitmap(Canvas.java:1044)
at android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:323)
at android.widget.ImageView.onDraw(ImageView.java:923)
at android.view.View.draw(View.java:6739)
at android.view.ViewGroup.drawChild(ViewGroup.java:1648)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.widget.AbsListView.dispatchDraw(AbsListView.java:1365)
at android.widget.ListView.dispatchDraw(ListView.java:3046)
at android.view.View.draw(View.java:6845)
at android.widget.AbsListView.draw(AbsListView.java:2257)
at android.view.ViewGroup.drawChild(ViewGroup.java:1648)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.View.draw(View.java:6742)
at android.widget.FrameLayout.draw(FrameLayout.java:352)
at android.view.ViewGroup.drawChild(ViewGroup.java:1648)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.View.draw(View.java:6742)
at android.widget.FrameLayout.draw(FrameLayout.java:352)
at android.view.ViewGroup.drawChild(ViewGroup.java:1648)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375)
at android.view.View.draw(View.java:6742)
at android.widget.FrameLayout.draw(FrameLayout.java:352)
at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1872)
at android.view.ViewRoot.draw(ViewRoot.java:1422)
at android.view.ViewRoot.performTraversals(ViewRoot.java:1167)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1744)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:144)
at android.app.ActivityThread.main(ActivityThread.java:4937)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
嗨，我没有在我的代码的任何部分调用recycle（），那是好奇的事情......谢谢！ – gskbyte 2010-08-25 05:50:48
这很奇怪。必须明确调用“回收”。当我对它进行调用层次结构时，我没有看到任何东西跳出来。 – Qberticus 2010-08-25 07:12:39
如果删除回收站，可能会导致内存不足问题。 – Namratha 2012-06-21 11:00:25