如何以编程方式使用一个在另一个按钮上的两个按钮来创建RelativeLayout? [英] How to create a RelativeLayout programmatically with two buttons one on top of the other?

问题描述

我在UI中添加了两个按钮，但它们彼此重叠显示.我希望它们彼此相邻出现.我在这段代码中缺少什么?

I'm adding two buttons to the UI, but they appear on top of one another. I want them to appear next to each other. What am I missing in this code?

m_btnCrown = new ImageButton(this);
m_btnCrown.setImageResource(R.drawable.king_crown_thumb);
m_btnCrown.setAlpha(100);

RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
    RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_TOP);


addContentView(m_btnCrown, lp);


m_btnMonkey = new ImageButton(this);
m_btnMonkey.setImageResource(R.drawable.monkey_small);
m_btnMonkey.setAlpha(100);

lp = new RelativeLayout.LayoutParams(
    RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_TOP);
lp.addRule(RelativeLayout.RIGHT_OF, m_btnCrown.getId());   

addContentView(m_btnMonkey, lp);

推荐答案

在我们应该使用setId()显式设置id.只有这样，RIGHT_OF规则才有意义.

We should explicitly set id's using setId(). Only then, RIGHT_OF rules make sense.

我犯的另一个错误是在控件之间重用layoutparams对象.我们应该为每个控件创建一个新对象

Another mistake I did is, reusing the layoutparams object between the controls. We should create new object for each control

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