title: how to check whether the app running on the on the first time from the main activity
body: <p>i have checked my app is running for the first time or not , if the app is running for the first time , it should go to another activity called Intro, i have used the following code and it works fine</p>
  
  <pre><code>     SharedPreferences preferences=  PreferenceManager.getDefaultSharedPreferences(this);
      if (!preferences.getBoolean("Time",false))
      {
  
  
          Intent intent=new Intent("com.hackerinside.jaisonjoseph.radioplanet.Intro");
          startActivity(intent);
  
          Toast.makeText(getApplicationContext(), "Welcome to Radio Planet ", Toast.LENGTH_LONG).show();
          SharedPreferences.Editor editor=preferences.edit();
          editor.putBoolean("Time",true);
          editor.commit();
      }
  </code></pre>
  
  <p>My concern is when the user finishes the app introduction , it will go to my main activity or main screen , i want to do some stuff there also . how can i do that ?</p>