android 中动态创建控件

public voidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
// 确定界面的布局
AbsoluteLayoutabslayout= newAbsoluteLayout( this);
setContentView(abslayout);
// 创建一个button按钮
Buttonbtn1= newButton( this);
btn1.setText(” thisisabutton”);
btn1.setId(1);
// 确定这个控件的大小和位置
AbsoluteLayout.LayoutParamslp1=
newAbsoluteLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT,
0,100);
abslayout.addView(btn1,lp1);

}

一个界面可以布置一个布局，可以多个布局一起设计

public voidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);

// 设置界面的布局
RelativeLayoutrelativeLayout= newRelativeLayout( this);
setContentView(relativeLayout);

// 添加一个AbsoluteLayout子布局,并给这个布局添加一个button
AbsoluteLayoutabslayout= newAbsoluteLayout( this);
abslayout.setId(11);
Buttonbtn1= newButton( this);
btn1.setText(” thisisaabslayoutbutton”);
btn1.setId(1);
AbsoluteLayout.LayoutParamslp0= newAbsoluteLayout.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.LayoutParamslp1= newRelativeLayout.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
RelativeLayoutrelativeLayout1= newRelativeLayout( this);
Buttonbtn2= newButton( this);
btn2.setText(” thisisarelativeLayout1button”);
btn2.setId(2);
RelativeLayout.LayoutParamslp2= newRelativeLayout.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.LayoutParamslp11= newRelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);
lp11.addRule(RelativeLayout.BELOW,11);
relativeLayout.addView(relativeLayout1,lp11);
}

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