Cannot resize linear layout children in android react native module

Question

Full code here

Video of correct behavior in java and incorrect in react native here

I have modified a linear layout to respond to touch by resizing the left chil

Answer 1

LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) leftView.getLayoutParams();
lp.width=newWidth;
leftView.setLayoutParams(lp);
leftView.requestLayout(); 

Above code will solve you problem.