Question

I have a LinearLayout in my xml.

On runtime i add one image view of fill parent in this linear layout. Now i want to add one button over this imageview. Is this possible to add this button at center of this image view ? can we add view in child of any other view.

Please suggest me what should i do for this.

Answer 1

Use a RelativeLayout instead of a LinearLayout:

<RelativeLayout android:layout_width="fill_parent" android:layout_height="fill_parent">
     <ImageView android:layout_width="fill_parent" android:layout_height="fill_parent" />
     <Button android:id="@_id/the_button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:visibility="gone"/>
</RelativeLayout>

When you want to make the button visible:

Button b = (Button) findViewById(R.id.the_button);
b.setVisibility(View.VISIBLE);