Question

I have a ViewGroup object for which I toggle its visibility value between “gone” and “visible” at the press of a “down” and “up” button respectively. When the ViewGroup object comes into or out of view I want it to look like it is being dropped/slid down and raised/slid up (as in the picture above). Anyone have any ideas or leads as to how this can be achieved?

(Extra note: The ViewGroup object that is coming into and out of view contains Buttons etc that need to be interacted with.)

Answer 1

You would use a SlidingDrawer:

http://developer.android.com/reference/android/widget/SlidingDrawer.html

<SlidingDrawer
     android:id="@+id/drawer"
     android:layout_width="match_parent"
     android:layout_height="match_parent"

     android:handle="@+id/handle"
     android:content="@+id/content">

     <ImageView
         android:id="@id/handle"
         android:layout_width="88dip"
         android:layout_height="44dip" />

     <ViewGroup
         android:id="@id/content"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />

 </SlidingDrawer>

Simple as that. The Handle is your button. You’ll have to play with orientation and sizes to get in where you want on the screen.