Android-动态设置按钮的布局宽度

Question

I automated the process of creating the layout and the buttons it contains. Working with the GUI that Eclipse provide for editing layout, it let the use set the button's layout width property. I wish to do the same through code (dynamically). Basically, I wish to set the button's layout width property to MATCH_PARENT.

A snipped code or a good reference will be great. Thanks.

Answer 1

If your container is a LinearLayout its going to be like this:

    LinearLayout container = (LinearLayout)findViewById(R.id.container);

    Button btn = new Button(this);
    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
      LinearLayout.LayoutParams.MATCH_PARENT, 
      LinearLayout.LayoutParams.WRAP_CONTENT);
    btn.setLayoutParams(lp);

    container.addView(btn);