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

我在play store控制台上有多个崩溃，我已经检查了drawable文件夹中的所有图像，对我来说似乎没有问题，因为我怀疑这可能会导致问题。据报道，它主要是在三星设备上崩溃。请说明发生了什么错误。 对于背景图像，我也使用此尺寸： hdpi:480*800 xhdpi:640*960 xxhdpi 1440*2560 xxxhdpi: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)`.

---

我认为你的例外情况从这里开始：

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);
}

因此，或者您正试图使用回收的位图，或者您的bmp没有预乘，或者您的硬件不支持位图

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

因此，现在请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。

从过去7天开始，我一直面临这个问题，解决方案只是需要检查所有XML格式的imageview，其中您特别提到了高度和宽度，并且分配给该视图的可绘制视图太大。

是否都是os 4.x版本？它主要在android 7.0上。您的应用程序使用什么扩展背景图像？他们的尺寸单位是MB？我使用的尺寸是：hdpi:480*800 xhdpi:640*960 xxhdpi 1080*1920 xxxhdpi:1440*2560，尺寸单位是KB。希望你是说这个问题是我在play store上得到这个日志，我在多个地方设置背景图像，所以我不知道在哪里写上面的代码。只需在所有地方写这个代码。这使您的代码更快，内存消耗更少！