相对布局宽度/高度不能以编程方式工作？

Question

我想以编程方式进行相对布局并设置android:layout_widht = 60 android:layout_height = 60.当我以编程方式执行时,它是否填满所有屏幕？我怎样才能做到这一点？

我的代码:`

      RelativeLayout relativeLayout=new RelativeLayout(getContext());
        RelativeLayout.LayoutParams rel_btn = new RelativeLayout.LayoutParams(
                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        rel_btn.height = 60;
        rel_btn.width = 60;
        relativeLayout.setLayoutParams(rel_btn);
 this.setBackgroundResource(com.example.R.drawable.line);`

屏幕:

Answer 1

btn.getLayoutParams().width = width;
btn.getLayoutParams().height = height;

事实上,只是使用

RelativeLayout.LayoutParams rel_btn = new RelativeLayout.LayoutParams(
            60, 60);

没关系.问题可能是背景图片拉伸按钮