java - Why does my Application crash at startup? -


i can't change progress bar in webview application circle.the application crashes @ startup..here's code

@override     public void oncreate(bundle savedinstancestate)     {         super.oncreate(savedinstancestate);         setcontentview(r.layout.main);         webview = (webview) findviewbyid(r.id.webview);         websettings websettings = webview.getsettings();         websettings.setjavascriptenabled(true);          getwindow().requestfeature(window.feature_indeterminate_progress); // request progress circle         setprogressbarindeterminatevisibility(true); // show progress circle      //  webview.setwebviewclient(new webviewclient());          final activity activity = this;          webview.setwebchromeclient(new webchromeclient(){                  public void onprogresschanged(webview view, int progress) {                     activity.settitle("loading...");                     activity.setprogress(progress * 100);                     if(progress == 100)                         setprogressbarindeterminatevisibility(false); // hide progress circle when page loaded                     activity.settitle("title");                 }             });         if (savedinstancestate == null)         {             webview.loadurl("http://www.proboards.com/");         }       }

someone can help?

your app crashes because line:

activity.getwindow().requestfeature(window.feature_indeterminate_progress);

needs called before calling activity.setcontentview(...);

you calling setcontentview(...) before, thats why app crashes.

here why, android-developer page:

http://developer.android.com/reference/android/view/window.html#requestfeature%28int%29


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