setmargin在android中的相对布局中不起作用

2023年5月13日 202次阅读

我以编程方式在相对布局中创建了2个按钮.我希望按钮之间没有余量空间,并试图通过使用’setmargin’来实现这一点,但失败了.下面是代码.

//creating the relative layout
  RelativeLayout relativeLayout = new RelativeLayout(this);
  RelativeLayout.LayoutParams rlp = new RelativeLayout.LayoutParams(
            RelativeLayout.LayoutParams.MATCH_PARENT,
            RelativeLayout.LayoutParams.MATCH_PARENT);   
//creating buttons
    Button button1 = new Button(this);
    button1.setId(R.id.button1);
    RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(
            SCR_W/2,
            RelativeLayout.LayoutParams.WRAP_CONTENT);//SCR_W is the device screenwidth
    params1.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
    params1.addRule(RelativeLayout.ALIGN_PARENT_TOP);
    params1.setMargins(0, 0, 0, 0);
    button1.setLayoutParams(params1);
    relativeLayout.addView(button1);  

    Button button2 = new Button(this);
    button2.setId(R.id.button2);
    RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(
            SCR_W/2,
            RelativeLayout.LayoutParams.WRAP_CONTENT);
    params2.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
    params2.addRule(RelativeLayout.BELOW, button1.getId());
    params2.setMargins(0, 0, 0, 0);
    button2.setLayoutParams(params2);
    relativeLayout.addView(button2);

//setting the relative layout as the contentview
     setContentView(relativeLayout, rlp);

提前致谢..

最佳答案 我尝试了你的代码,对我有用,

两个按钮位于距离0.要检查它,只需为每个按钮设置不同的颜色,您将看到它们在一起.

button1.setBackgroundColor(Color.BLUE);
button2.setBackgroundColor(Color.RED);
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