最近在做和图片相关显示的出现了一个问题，整理一下思路，分享出来给大家参考一下：
Exception Type:java.lang.RuntimeException java.lang.RuntimeException: Canvas: trying to use a recycled bitmap android.graphics.Bitmap@XXXXX at android.graphics.Canvas.throwIfCannotDraw(Canvas.java:1282)at android.view.GLES20Canvas.drawBitmap(GLES20Canvas.java:599)at android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:538)at android.widget.ImageView.onDraw(ImageView.java:1176)at android.view.View.draw(View.java:15285)at android.view.View.updateDisplayListIfDirty(View.java:14208)at android.view.View.getDisplayList(View.java:14230)at android.view.View.draw(View.java:15013)at android.view.ViewGroup.drawChild(ViewGroup.java:3409)at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3202)at android.view.View.draw(View.java:15288)at android.widget.FrameLayout.draw(FrameLayout.java:598)at android.view.View.updateDisplayListIfDirty(View.java:14208)at android.view.View.getDisplayList(View.java:14230)at android.view.View.draw(View.java:15013)at android.view.ViewGroup.drawChild(ViewGroup.java:3409)at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3202)at android.view.View.updateDisplayListIfDirty(View.java:14203)at android.view.View.getDisplayList(View.java:14230)at android.view.View.draw(View.java:15013)at android.view.ViewGroup.drawChild(ViewGroup.java:3409)at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3202)at android.view.View.updateDisplayListIfDirty(View.java:14203)at android.view.View.getDisplayList(View.java:14230)at android.view.View.draw(View.java:15013)at android.view.ViewGroup.drawChild(ViewGroup.java:3409)at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3202)at android.view.View.updateDisplayListIfDirty(View.java:14203)at android.view.View.getDisplayList(View.java:14230)at android.view.View.draw(View.java:15013)at android.view.ViewGroup.drawChild(ViewGroup.java:3409)at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3202)at android.view.View.updateDisplayListIfDirty(View.java:14203)at android.view.View.getDisplayList(View.java:14230)at android.view.View.draw(View.java:15013)at android.view.ViewGroup.drawChild(ViewGroup.java:3409)at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3202)at android.view.View.updateDisplayListIfDirty(View.java:14203)at android.view.View.getDisplayList(View.java:14230)at android.view.View.draw(View.java:15013)at android.view.ViewGroup.drawChild(ViewGroup.java:3409)at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3202)at android.view.View.draw(View.java:15288)at android.widget.FrameLayout.draw(FrameLayout.java:598)at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2799)at android.view.View.updateDisplayListIfDirty(View.java:14208)at android.view.View.getDisplayList(View.java:14230)at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:273)at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:279)at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:318)at android.view.ViewRootImpl.draw(ViewRootImpl.java:2552)at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2368)at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1998)at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1077)at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5966)at android.view.Choreographer$CallbackRecord.run(Choreographer.java:786)at android.view.Choreographer.doCallbacks(Choreographer.java:599)at android.view.Choreographer.doFrame(Choreographer.java:569)at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:772)at android.os.Handler.handleCallback(Handler.java:743)at android.os.Handler.dispatchMessage(Handler.java:95)at android.os.Looper.loop(Looper.java:135)at android.app.ActivityThread.main(ActivityThread.java:5299)at java.lang.reflect.Method.invoke(Native Method)at java.lang.reflect.Method.invoke(Method.java:372)at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
主要的跟踪方向
at android.view.GLES20Canvas.drawBitmap(GLES20Canvas.java:599)at android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:538)at android.widget.ImageView.onDraw(ImageView.java:1176)在这ImageView和BitmapDrawable、GLES20Canvas三个类报出异常信息，在找到ImageView代码中，发现了OnDraw的方法的mDrawable.draw(canvas);这一句出现了错
有接着在BitmapDrawable的OnDraw方法发现了错误行canvas.drawBitmap(bitmap, null, mDstRect, paint);：
又对应在找到GLES20Canvas.java:599的问题：
马上找到了问题所在：
protected static void throwIfCannotDraw(Bitmap bitmap) {if (bitmap.isRecycled()) {throw new RuntimeException("Canvas: trying to use a recycled bitmap " + bitmap);}if (!bitmap.isPremultiplied() && bitmap.getConfig() == Bitmap.Config.ARGB_8888 &&bitmap.hasAlpha()) {throw new RuntimeException("Canvas: trying to use a non-premultiplied bitmap "+ bitmap);}}解决方案：
1、可以写一个集成ImageView的子类，单后复写onDraw（）方法捕获此异常：
@Overrideprotected void onDraw(Canvas canvas) {// TODO Auto-generated method stubtry{super.onDraw(canvas);}catch(Exception e){}}