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public?class?MainActivity?extends?Activity {

?

????@Override

????protected?void?onCreate(Bundle savedInstanceState) {

????????super.onCreate(savedInstanceState);

?

????????// 生成一個(gè)LinearLayout，作為布局容器來(lái)動(dòng)態(tài)添加3個(gè)Button

????????final?LinearLayout layout =?new?LinearLayout(this);

????????layout.setOrientation(LinearLayout.VERTICAL);

????????setContentView(layout);

?

????????// 生成3個(gè)Button

????????final?Button btn1 =?new?Button(this);

????????btn1.setText("1");

????????btn1.setText("Button1");

????????final?Button btn2 =?new?Button(this);

????????btn2.setText("2");

????????btn2.setText("Button2");

????????final?Button btn3 =?new?Button(this);

????????btn3.setText("3");

????????btn3.setText("Button3");

?

????????// 動(dòng)態(tài)把三個(gè)Button添加到

????????layout.addView(btn1);

????????layout.addView(btn2);

????????layout.addView(btn3);

?

????????// 點(diǎn)擊按鈕時(shí)，先把原來(lái)在布局容器layout上的刪掉，再添加上局容器layout，這樣本次添加的控件就會(huì)排序到最后，以理解動(dòng)態(tài)添加控件的思路

????????btn1.setOnClickListener(new?OnClickListener() {

?

????????????@Override

????????????public?void?onClick(View arg0) {

????????????????layout.removeView(btn1);

????????????????layout.addView(btn1);

????????????}

????????});

?

????????// 同btn1一樣道理

????????btn2.setOnClickListener(new?OnClickListener() {

?

????????????@Override

????????????public?void?onClick(View arg0) {

????????????????layout.removeView(btn2);

????????????????layout.addView(btn2);

????????????}

????????});

?

????????// 同btn1一樣道理

????????btn3.setOnClickListener(new?OnClickListener() {

?

????????????@Override

????????????public?void?onClick(View arg0) {

????????????????layout.removeView(btn3);

????????????????layout.addView(btn3);

????????????}

????????});

????????setContentView(layout);

????}

?

}