Android: Set margins in a FrameLayout programmatically- not working

Question

here is the code-

FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) searchPin.getLayoutParams();
params.setMargins(135, 176, 0, 0);
//params.leftMargin = 135; // also not worked 
//params.topMargin = 376;
searchPin.setLayoutParams(params);

Where ever, from xml its working-

android:layout_marginLeft="135dp"

what can be the reason? am i missing something!

-thnx

Answer 1

Try this:

params.gravity = Gravity.TOP;

Answer 2

I had a FrameLayout child of a RelativeLayout so the framework was trying to cast FrameLayout params to RelativeLayout, I solved this way

FrameLayout mylayout = (FrameLayout) view.findViewById(R.id.mylayout);
ViewGroup.MarginLayoutParams params = (MarginLayoutParams) mylayout.getLayoutParams();
params.setMargins(1, 2, 3, 4);
mylayout.setLayoutParams(params);