WebView 打开弹窗活动出错，魅族手机出错

最新推荐文章于 2022-07-05 11:15:59 发布

seawh411

最新推荐文章于 2022-07-05 11:15:59 发布

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文章标签： android

本文链接：https://blog.youkuaiyun.com/seawh411/article/details/65631462

本文介绍了一种解决Android应用程序中UI线程异常的方法。通过创建一个主线程Handler，在子线程中发送消息到主线程，从而避免了CalledFromWrongThreadException异常。此方案适用于需要在非UI线程更新UI的情况。

Thread [JavaBridge] (Suspended (exception ViewRootImpl$CalledFromWrongThreadException))
   ViewRootImpl.checkThread() line: 6531
   ViewRootImpl.invalidateChildInParent(int[], Rect) line: 913
   RelativeLayout(ViewGroup).invalidateChild(View, Rect) line: 4702
   RelativeLayout(View).invalidateInternal(int, int, int, int, boolean, boolean) line: 11836
   RelativeLayout(View).invalidate(boolean) line: 11800
   Button(View).setFlags(int, int) line: 9805
   Button(View).setVisibility(int) line: 6707
   CommonWebViewScriptBarActivity.closeModel() line: 631
   WebViewScript.CloseModelPopView() line: 122
   SystemMessageHandler.nativeDoRunLoopOnce(long, long) line: not available [native method]
   SystemMessageHandler.handleMessage(Message) line: 53
   SystemMessageHandler(Handler).dispatchMessage(Message) line: 102
   Looper.loop() line: 135

HandlerThread.run() line: 61

解决方案如下:

主线程建Handler

private class MainHandler extends Handler{
       /**
         * Subclasses must implement this to receive messages.
         */
        public void handleMessage(Message msg) {
           switch(msg.what){
           case 1:
           btnRight.setVisibility(View.INVISIBLE);
             btnRight.setText("");
           break;

           default:
               break;

           }
        }

}

Message msg = new Message();
msg.what = 0;
mainHandler.sendMessage(msg);

这样就ok了