Launching other app from my app

Launch other application of the device from your application:

Intent intent = getPackageManager().getLaunchIntentForPackage(packageName);

      intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

      intent.addFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

      if (null != intent) {

      try {

             startActivity(intent);

      } catch(Exception e) {  }

    }

Note: You need to know the package name to use the above code. For package name:

http://lovingandroid.blogspot.com/2011/08/getting-package-name-of-installed-app.html