android - 在三星设备上继续运行时异常 : android. view.DisplayListCanvas.throwIfCannotDraw

Question

我在 Play 商店控制台上多次崩溃，我检查了可绘制文件夹中的所有图像，这对我来说似乎没问题，因为我怀疑这可能会导致问题。根据报告，它主要在三星设备上崩溃。请建议发生了什么错误。同样对于背景图片，我使用的是这个尺寸:分辨率:480*800xhdpi: 640*960xxhdpi 1440*2560xxxhdpi: 1440*2560

`at android.view.DisplayListCanvas.throwIfCannotDraw 
(DisplayListCanvas.java:260)
at android.graphics.Canvas.drawBitmap (Canvas.java:1420)
at android.graphics.drawable.BitmapDrawable.draw (BitmapDrawable.java:545)
at android.widget.ImageView.onDraw (ImageView.java:1286)
at android.view.View.draw (View.java:18318)
at android.view.View.updateDisplayListIfDirty (View.java:17296)
at android.view.View.draw (View.java:18080)
at android.view.ViewGroup.drawChild (ViewGroup.java:3966)
at android.view.ViewGroup.dispatchDraw (ViewGroup.java:3752)
at android.view.View.updateDisplayListIfDirty (View.java:17291)
at android.view.View.draw (View.java:18080)
at android.view.ViewGroup.drawChild (ViewGroup.java:3966)
at android.view.ViewGroup.dispatchDraw (ViewGroup.java:3752)
at android.view.View.updateDisplayListIfDirty (View.java:17291)
at android.view.View.draw (View.java:18080)
at android.view.ViewGroup.drawChild (ViewGroup.java:3966)
at android.view.ViewGroup.dispatchDraw (ViewGroup.java:3752)
at android.view.View.updateDisplayListIfDirty (View.java:17291)
at android.view.View.draw (View.java:18080)
at android.view.ViewGroup.drawChild (ViewGroup.java:3966)
at android.view.ViewGroup.dispatchDraw (ViewGroup.java:3752)
at android.view.View.updateDisplayListIfDirty (View.java:17291)
at android.view.View.draw (View.java:18080)
at android.view.ViewGroup.drawChild (ViewGroup.java:3966)
at android.view.ViewGroup.dispatchDraw (ViewGroup.java:3752)
at android.view.View.updateDisplayListIfDirty (View.java:17291)
at android.view.View.draw (View.java:18080)
at android.view.ViewGroup.drawChild (ViewGroup.java:3966)
at android.view.ViewGroup.dispatchDraw (ViewGroup.java:3752)
at android.view.View.draw (View.java:18321)
at com.android.internal.policy.DecorView.draw (DecorView.java:919)
at android.view.View.updateDisplayListIfDirty (View.java:17296)
at android.view.ThreadedRenderer.updateViewTreeDisplayList 
(ThreadedRenderer.java:692)
at android.view.ThreadedRenderer.updateRootDisplayList 
(ThreadedRenderer.java:698)
at android.view.ThreadedRenderer.draw (ThreadedRenderer.java:806)
at android.view.ViewRootImpl.draw (ViewRootImpl.java:3128)
at android.view.ViewRootImpl.performDraw (ViewRootImpl.java:2924)
at android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:2516)
at android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1515)
at android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:7091)
at android.view.Choreographer$CallbackRecord.run (Choreographer.java:927)
at android.view.Choreographer.doCallbacks (Choreographer.java:702)
at android.view.Choreographer.doFrame (Choreographer.java:638)
at android.view.Choreographer$FrameDisplayEventReceiver.run 
(Choreographer.java:913)
at android.os.Handler.handleCallback (Handler.java:751)
at android.os.Handler.dispatchMessage (Handler.java:95)
at android.os.Looper.loop (Looper.java:154)
at android.app.ActivityThread.main (ActivityThread.java:6682)
at java.lang.reflect.Method.invoke (Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run 
(ZygoteInit.java:1520)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1410)`.

Answer 1

我认为您的异常从这里开始:

protected 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);
    }
    throwIfHwBitmapInSwMode(bitmap);
}

所以或者你正在尝试使用回收位图或者你的 bmp 没有预乘或者你的硬件不支持位图

private void throwIfHwBitmapInSwMode(Bitmap bitmap) {
    if (!mAllowHwBitmapsInSwMode && !isHardwareAccelerated()
            && bitmap.getConfig() == Bitmap.Config.HARDWARE) {
        throw new IllegalStateException("Software rendering doesn't support hardware bitmaps");
    }
}

但我不这么认为!

所以现在尝试按如下方式加载图像以避免错误并让我知道:

mImageView.setImageBitmap(decodeSampledBitmapFromResource(getResources(), R.id.myimage, 100, 100));

public static Bitmap decodeSampledBitmapFromResource(Resources res, int resId,
        int reqWidth, int reqHeight) {

    // First decode with inJustDecodeBounds=true to check dimensions
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeResource(res, resId, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;
    return BitmapFactory.decodeResource(res, resId, options);
}

对于 reference .