我为我的应用程序创建了PagerAdapter，但应用程序开始崩溃并出现这样的错误：
Java.lang.RuntimeException：Canvas：尝试使用回收的位图图片android.graphics.Bitmap@5d976e0
我该如何解决这个问题？
public class ImageAdapter extends PagerAdapter {
Context context;
private int[] allImages;
ImageView imageView;
LayoutInflater mLayoutInflater;
public ImageAdapter(Context context, int[]images){
this.context=context;
mLayoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
allImages = images;
}
@Override
public int getCount() {
return allImages.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == ((LinearLayout) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
View itemView = mLayoutInflater.inflate(R.layout.pager_item, container, false);
if(imageView != null) {
((BitmapDrawable)imageView.getDrawable()).getBitmap().recycle();
}
imageView = (ImageView) itemView.findViewById(R.id.imgDisplay);
imageView.setImageResource(allImages[position]);
container.addView(itemView);
return itemView;
}
当我在PagerAdapter中选择上一张图片时，应用程序崩溃并显示以下错误：
08-06 14:59:08.543 2704-2704/com.secret.cardfocus E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.secret.cardfocus, PID: 2704
java.lang.RuntimeException: Canvas: trying to use a recycled bitmap android.graphics.Bitmap@28ebced
at android.graphics.Canvas.throwIfCannotDraw(Canvas.java:1271)
at android.view.DisplayListCanvas.throwIfCannotDraw(DisplayListCanvas.java:257)
at android.graphics.Canvas.drawBitmap(Canvas.java:1415)
at android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:545)
at android.widget.ImageView.onDraw(ImageView.java:1286)
at android.view.View.draw(View.java:17071)
at android.view.View.updateDisplayListIfDirty(View.java:16053)
at android.view.View.draw(View.java:16837)
at android.view.ViewGroup.drawChild(ViewGroup.java:3764)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550)
at android.view.View.updateDisplayListIfDirty(View.java:16048)
at android.view.View.draw(View.java:16837)
at android.view.ViewGroup.drawChild(ViewGroup.java:3764)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550)
at android.view.View.draw(View.java:17074)
at android.support.v4.view.ViewPager.draw(ViewPager.java:2443)
at android.view.View.updateDisplayListIfDirty(View.java:16053)
at android.view.View.draw(View.java:16837)
at android.view.ViewGroup.drawChild(ViewGroup.java:3764)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3550)
at android.view.View.updateDisplayListIfDirty(View.java:16048)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3748)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3728)
at android.view.View.updateDisplayListIfDirty(View.java:16016)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3748)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3728)
at android.view.View.updateDisplayListIfDirty(View.java:16016)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3748)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3728)
at android.view.View.updateDisplayListIfDirty(View.java:16016)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3748)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3728)
at android.view.View.updateDisplayListIfDirty(View.java:16016)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3748)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3728)
at android.view.View.updateDisplayListIfDirty(View.java:16016)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3748)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3728)
at android.view.View.updateDisplayListIfDirty(View.java:16016)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:656)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:662)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:770)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:2796)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2604)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2211)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1246)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6301)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:871)
at android.view.Choreographer.doCallbacks(Choreographer.java:683)
at android.view.Choreographer.doFrame(Choreographer.java:619)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)