WebView.onDraw (Android 4.1)

UI thread
++++ WebView.onDraw
++++ WebViewClassic.onDraw
++++ WebViewClassic.drawContent
++++ WebViewClassic.nativeDrawGLFunction
++++ WebViewClassic.drawTextSelectionHandles

onDraw实现View的重绘, 通过UI线程的invalidate()或者非UI线程的postInvalidate()异步调用

你可能感兴趣的:(thread,android,UI)