Android按钮不移动onclick

Question

I have an up button which I want to move up onClick but when I click on it it moves way to far and gets to the end of the screen and then shrinks down untill you cant see it. It moves up too much, but why? I only increase it by one unit?

final Button upbutton = (Button)findViewById(R.id.upbutton);

    upbutton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {

            RelativeLayout.LayoutParams mParams = (RelativeLayout.LayoutParams)

            upbutton.getLayoutParams();

            mParams.bottomMargin += 1;
            upbutton.setLayoutParams(mParams);

        }
    });
}

Answer 1

因为您没有将mParam分配给按钮参数。

mParams = upbutton.getLayoutParams();

Answer 2

You seem to be increasing parameters for your RelativeLayout then assigning those to your button . So the button gets confused. Try looking for a set margin option or something on the actual button view.