您可能需要调用 onPause() 和 onResume()="http://developer.android.com/reference/android/webkit/WebView.html" rel="nofollow">WebView 类.

You may have to call the methods onPause() and onResume() of the WebView Class.

@Override
protected void onPause()
{
    super.onPause();
    mWebView.onPause(); // pauses the WebView (JavaScript, flash etc.)
}

@Override
protected void onResume()
{
    super.onResume();
    mWebView.onResume(); // resumes the WebView (JavaScript, flash etc.)

}

@Override
protected void onDestroy()
{
    super.onDestroy();
    relativeLayoutPlaceholder.removeView(mWebView); // removes the WebView from its Placeholder
    mWebView.destroy(); // destroys the WebView
    mWebView = null;
}