Layout Param is used to change the layout properties. You can create a layout instance and assign to required view.
LinearLayout.LayoutParams layoutParam = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
Sample Code
LinearLayout.LayoutParams mLayoutParam = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
Button mButton = new Button(this);
mButton.setLayoutParams(layoutParam);
The above code works fine but this is not a current solution. It should like the below code
Button mButton = new Button(this);
ViewGroup.LayoutParam mLayoutParam= mButton.getLayoutParams();
mLayoutParam.height = ViewGroup.LayoutParams.FILL_PARENT
Thanks to Ashok , I have done the mistake and corrected me