title: How to open gallery on default
body: <p>I have an activity on my project.When a user comes to this activity,i want it to show the gallery with pictures by default.Without having to put a button to open the gallery.This activity should have the gallery open by default. I also cant find any tutorial about this. I've tried many ways but still it isn't working.How can i achieve this. </p>
  
  <p>I want when a user comes to this activity,they should find the gallery open by default,without having to click a button to open it.</p>