安卓系统尝试绘制大尺寸位图（崩溃报告）

Question

在开发者控制台中，我得到了以下的崩溃报告。我真的不知道问题出在哪里。这是我在GitHub上发布的项目链接：https://github.com/DaFaack/Mr.Politik。

java.lang.RuntimeException: 
  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.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$FrameDisplayEventReceiver.run(Choreographer.java:913)
  at android.os.Handler.handleCallback(Handler.java:751)
  at android.os.Handler.dispatchMessage(Handler.java:95)
  at android.os.Looper.loop(Looper.java:154)
  at android.app.ActivityThread.main(ActivityThread.java:6682)
  at java.lang.reflect.Method.invoke(Native Method:0)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)

这个错误信息是什么意思，我该如何解决它？

- Sinuss H

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位图有多大？这可能意味着OOM。 - Gabe Sechan

Answer 1

这看起来有点奇怪。把你所有的 .jpg 和 .png 文件放在 res 文件夹里的 drawable-nodpi 文件夹中。请问发生错误和出现崩溃的设备频率是多少？

- Emre Aktürk

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这个崩溃只出现在 Android 版本 7。 - Sinuss H

Answer 2

来自源代码：

protected void throwIfCannotDraw(Bitmap bitmap) {
    super.throwIfCannotDraw(bitmap);
    int bitmapSize = bitmap.getByteCount();
    if (bitmapSize > MAX_BITMAP_SIZE) {
        throw new RuntimeException(
                "Canvas: trying to draw too large(" + bitmapSize + "bytes) bitmap.");
    }
}

并在文件顶部定义：

private static final int MAX_BITMAP_SIZE = 100 * 1024 * 1024; // 100 MB

关于错误在你的源代码中的具体位置？我比你还不知道 - 基于已经发布的内容。尝试查找可能绘制大型图像的地方，并验证它们是否超过100MB。

- Matt Clark