gistfile1

Intent intent = new Intent();
            intent.setComponent(new ComponentName("cng.android.timesheet", "cng.android.timesheet.Splash"));
            List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent, 
                    PackageManager.MATCH_DEFAULT_ONLY);
            if (list.size() > 0){
                startActivity(intent);
       
            } else {
                String url = "http://appstore.g-able.com/timesheet/";
                Intent i = new Intent(Intent.ACTION_VIEW);
                i.setData(Uri.parse(url));
                startActivity(i);
            }