I have a relative layout which I am creating programmatically:
RelativeLayout layout = new RelativeLayout( this );
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT);
Now I have two buttons which I want to add in this relative layout. But the problem is both buttons are being shown on the left of the RelatiiveLayout overlapping on each other.
buttonContainer.addView(btn1);
buttonContainer.addView(btn2);
Now I want to know how can I programmatically set the the android:layout_alignParentRight="true
"
or android:layout_toLeftOf="@id/btn"
attribute of buttons as we do in the xml?
You can access any LayoutParams
from code using View.getLayoutParams
. You just have to be very aware of what LayoutParams
your accessing. This is normally achieved by checking the containing ViewGroup
if it has a LayoutParams
inner child then that's the one you should use. In your case it's RelativeLayout.LayoutParams
. You'll be using RelativeLayout.LayoutParams#addRule(int verb)
and RelativeLayout.LayoutParams#addRule(int verb, int anchor)
You can get to it via code:
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)button.getLayoutParams();
params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
params.addRule(RelativeLayout.LEFT_OF, R.id.id_to_be_left_of);
button.setLayoutParams(params); //causes layout update