title: Android Activity Group problem?
body: <p>Suppose There are some activity.</p>
  
  <p>I want to start another activity from the main activity. and another from that activity. and another from the next one.</p>
  
  <p>This is how it is -</p>
  
  <p>Main Activity -> Activity 1 -> Activity 2 -> Activity 3</p>
  
  <p>Now I want to switch from Activity 3 to Activity 2 , when i click the back button it will show Activity 2 for few second and came back to Activity 1 suddenly . it is not stable for back button press, sometime it bring it to main actitity.</p>
  
  <p>I don't know is there any way to get it done.</p>
  
  <p>If someone know about this. Let me know.</p>