How do I programmatically remove an existing rule that was defined in XML?
You can't remove a rule because all rules are always stored in a fixed-size java array. But you can set a rule to 0
. For example
layoutParams.addRule(RelativeLayout.RIGHT_OF, 0);layoutParams.addRule(RelativeLayout.BELOW, R.id.new_ref_LinearLayout);
EDIT (thanks to Roger Rapid):
As of API level 17, the class RelativeLayout.LayoutParams
has the following method:
public void removeRule(int verb)
So you can remove a rule using the following line of code:
layoutParams.removeRule(RelativeLayout.RIGHT_OF);
And you will get exactly the same result as when 'adding' a zero-rule as:
layoutParams.addRule(RelativeLayout.RIGHT_OF, 0);
I think you need to call:
relativeLayout.updateViewLayout(linearLayoutToMove, layoutParams);
after changing the LayoutParams.
In reply to the edit, you can create new LayoutParameters using:
LinearLayout.LayoutParams = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT);
and then add your new rules. Then, update the layout parameters using the previously mentioned updateViewLayout() method.
add the following code to your existing code
linearLayoutToMove.setLayoutParams(layoutParams)
I think this should do the job. In case if the above line dont work, try to call linearLayoutToMove.invalidate()
after the above line.