动态创建绝对布局的控件

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void initView() {
    TextView tv = new TextView(this);
    tv.setText("TextView的内容");
    AbsoluteLayout.LayoutParams lp1 = new AbsoluteLayout.LayoutParams(
            ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, 0,100);
    absoluteLayout.addView(tv, lp1);
    //tv.layout(100, 100, 100, 100);
}

如果原来是 LinearLayout 等布局，则可以嵌套在一个 AbsoluteLayout 中

控件移动

直接 layout 方法就可以，但是有些不能这样移动，于是要用到 LayoutParams：

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// 动态创建
AbsoluteLayout.LayoutParams lp = new AbsoluteLayout.LayoutParams(
        ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, 0,100);
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LayoutParams layoutParams=tv.getLayoutParams();
layoutParams.height=x;
layoutParams.width=y;
tv.setLayoutParams(layoutParams);

来个复杂一点的

网上找的野教程

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public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
     
    //设置界面的布局
    RelativeLayout relativeLayout = new RelativeLayout(this);
    setContentView(relativeLayout);
     
    //添加一个AbsoluteLayout子布局,并给这个布局添加一个button
    AbsoluteLayout abslayout = new AbsoluteLayout (this);
    abslayout.setId(11);
    Buttonbtn1 = new Button(this);
    btn1.setText(”thisis a abslayout button”);
    btn1.setId(1);
    AbsoluteLayout.LayoutParams lp0 = new AbsoluteLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                                      ViewGroup.LayoutParams.WRAP_CONTENT, 100, 0);
    abslayout.addView(btn1, lp0 );
    //将这个子布局添加到主布局中
    RelativeLayout.LayoutParams lp1 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    lp1.addRule(RelativeLayout.ALIGN_PARENT_TOP);
    lp1.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
    relativeLayout.addView(abslayout , lp1);
     
    //再添加一个子布局
    RelativeLayout relativeLayout1 = new RelativeLayout(this);
    Button btn2 = newButton(this);
    btn2.setText(”thisis a relativeLayout1 button”);
    btn2.setId(2);
    RelativeLayout.LayoutParams lp2 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    lp2.addRule(RelativeLayout.ALIGN_PARENT_TOP);
    lp2.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
    relativeLayout1.addView(btn2 , lp2);
     
    //将这个布局添加到主布局中
    RelativeLayout.LayoutParams lp11 = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    lp11.addRule(RelativeLayout.BELOW , 11);
    relativeLayout.addView(relativeLayout1 , lp11);
}

以上代码执行的操作是：

创建一个RelativeLayout relativeLayou
创建一个AbsoluteLayout abslayout
创建一个Button btn1
把btn1添加到abslayout中，然后再把abslayout添加到relativeLayout中
然后又创建了一个RelativeLayout relativeLayout1
在创建一个Button btn2
把btn2添加到relativeLayout1上
最后把relativeLayout1添加到了relativeLayout