WebView未绘制，WARN/webcore(5336):第一个布局后无法获取viewWidth [英] WebView doesn't get drawn, WARN/webcore(5336): Can't get the viewWidth after the first layout

问题描述

我的应用具有一个视图，该视图通过使用以下代码以编程方式添加到活动中:

My app has a view that gets added to activity programmatically using this code:

    RelativeLayout.LayoutParams layoutParams = 
        new RelativeLayout.LayoutParams(480, 75);

    RelativeLayout parent = (RelativeLayout)mMyView.getParent();
    if (parent != null) {
        parent.removeView(mMyView);
    }

    activity.addContentView(mMyView, layoutParams);`

按下后退按钮(当然会调用OnDestroy())并再次运行该应用程序后，我看不到视图在屏幕上绘制，并且在DDMS尝试绘制它时收到此警告:

After pressing the Back Button, which ofcourse calls OnDestroy(), and running the app again, I don't see the View get drawn on the screen, and I get this warning on DDMS when it tries to draw it:

WARN/webcore(5336):在第一个布局后无法获取viewWidth

值得一提的是，该视图在此状态下可以正常工作(根据DDMS上的日志，页面资源正在加载)

It's worth mentioning that the view is functional on this state (the page resources are being loaded, according to the log on DDMS)

同样位于同一ContentView中的其他常规"视图(ImageView，TextView)也可以正常绘制.

Other "regular" views (ImageView, TextView) that are also in the same ContentView are drawing fine.

有什么主意我该如何解决这个问题，或者它的根源是什么?

Any ideas how can I solve this problem, or what can be its source?

推荐答案

尝试使用parent.forceLayout()，然后调用parent.measure().

Try using parent.forceLayout() then call parent.measure().

这会强制布局重新绘制自身，而不考虑其他布局请求(并且不会重新绘制父视图)，然后使用当前规格重新测量它.

This forces the layout to redraw itself without any regard for other layout requests (and doesn't redraw the parent views), and then remeasures it with current specs.

希望这会有所帮助！

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