Android 应用程序 (Webview) 因闪屏而崩溃答案

【问题标题】：Android App (Webview) crashes because of splashscreenAndroid 应用程序 (Webview) 因闪屏而崩溃
【发布时间】：2017-10-11 13:51:09
【问题描述】：

某些手机（例如三星 S6 或 S7）无法启动我的 android webview 应用程序。这是我从 google play 商店得到的：

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

这似乎是我的启动画面，就是这样：

activity_main.xml：

//splashscreen fullscreen
<ImageView
    android:id="@+id/splash1"

    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scaleType="centerCrop"
    android:adjustViewBounds="true"
    android:screenOrientation="portrait"
    android:visibility="visible"
    android:src="@drawable/redsplashscreen"
    />

//shows the webview fullscreen
<WebView
    android:id="@+id/web1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:visibility="gone"

MainActivity.java sn-p:

boolean splashFinished = false;

    @Override
    public void onPageFinished(WebView view, String url) {
        //loads splashscreen once till website is loaded
        if (!splashFinished) {
            //hides loading image
            findViewById(R.id.splash1).setVisibility(View.GONE);
            //shows webview
            findViewById(R.id.web1).setVisibility(View.VISIBLE);
            splashFinished = true;
        }

这里有人说我必须将图像从“drawable”-folder移动到“drawable-xxhd”，我试过了，但是当我想创建一个APK时，android studio将它移回并更改代码的xml。

顺便说一句，图片不是很大，我将大小从 1.7MB 更改为 0.7MB。

【问题讨论】：

你能显示详细代码吗？
你还想看什么？
详细 Logcat 和更多关于 MainActivity 的代码。
减小启动画面的大小。问题源于绘制图像。
我将它减少到 0.7 mb。这还大吗？

标签： java android xml webview

【解决方案1】：

在我的情况下，某些手机无法处理大的飞溅图像文件。我的是 1.xMB，在我减小文件大小后，不再崩溃。

减小文件大小。

【讨论】：

图片小于1MB。
尝试其他图片。非常小。

【解决方案2】：

我有一个解决方案：在 android studio 中，我创建了“drawable-xxhdpi”-文件夹（右键单击“res”-> 新建-> 目录）。我在这个文件夹中放置了相同的启动画面图像。这样，它不会更改 aactivity_main.xml 的任何内容。

【讨论】：