我有这个代码,它的唯一的问题是,如果我离开WebView,甚至关闭该应用程序,甚至按下电源,播客的音频继续播放.
有人会知道如何阻止吗？
这是代码：
public class PodcastsActivity extends BaseActivity //implements ActionBar.OnNavigationListener
{
WebView webview = null;
@Override
public void onCreate(Bundle savedInstanceState)
{
//setTheme(R.style.Theme_Sherlock_Light);
super.onCreate(savedInstanceState);
//setContentView(R.layout.podcasts);
webview = new WebView(this);
webview.getSettings().setAppCacheEnabled(false);
webview.getSettings().setJavaScriptEnabled(true);
webview.setInitialScale(1);
webview.getSettings().setPluginState(PluginState.ON);
webview.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view,String url) {
view.loadUrl(url);
return true;
}
});
//webSettings.setBuiltInZoomControls(true);
WebSettings webSettings = webview.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setBuiltInZoomControls(true);
//webSettings.getMediaPlaybackRequiresUserGesture();
webSettings.setAllowContentAccess(true);
webSettings.setEnableSmoothTransition(true);
webSettings.setLoadsImagesAutomatically(true);
webSettings.setLoadWithOverviewmode(true);
webSettings.setSupportZoom(true);
webSettings.setUseWideViewPort(true);
setContentView(webview);
webview.loadUrl("http://www.stitcher.com/podcast/entrepreneuronfirecom/entrepreneur-on-fire-tim-ferriss-other-incredible-entrepreneurs");
}
// public void onBackPressed ( )
// {
// Class.forName("com.***.HTML5WebView").getMethod("onPause",(Class[]) null).
// invoke(html5WebView,(Object[]) null);
// }
@Override
public boolean onKeyDown(int keyCode,KeyEvent event)
{
if ((keyCode == KeyEvent.KEYCODE_BACK) && webview.canGoBack())
{
webview.goBack();
return true;
}
return super.onKeyDown(keyCode,event);
}
@Override
public void onStop()
{
super.onStop();
// your code
webview.clearView();
}
解决方法
您应该分别从Activity的onPause()和onResume()调用
WebView’s
onPause()和
onResume().
Pauses any extra processing associated with this WebView and its@H_403_14@ associated DOM,plugins,JavaScript etc. For example,if this WebView@H_403_14@ is taken offscreen,this could be called to reduce unnecessary cpu or@H_403_14@ network traffic. When this WebView is again “active”,call onResume().
还有pauseTimers(),它影响了您的应用程序中的所有WebViews：
Pauses all layout,parsing,and JavaScript timers for all WebViews. This is a global requests,not restricted to just this WebView. This can be useful if the application has been paused.
