在AndroidU I布局中,一般都是利用xml来布局控件,这是比较方便和直观的,但是有时却需要动态生成,下面就举2个简单例子来说明怎么动态添加控件:
1.动态添加2个垂直排列的Button
@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.main); final LinearLayout layout2=new LinearLayout(this); layout2.setOrientation(LinearLayout.VERTICAL); Button btn1=new Button(this); setContentView(layout2); Button btn2=new Button(this); btn1.setText("Button1"); btn2.setText("Button2"); layout2.addView(btn1); layout2.addView(btn2); setContentView(layout2); }final LinearLayout layout2=new LinearLayou(this);
定义一个LinearLayout ,参数为context在这儿即为this
layout2.setOrientation(LinearLayout.VERTICAL);
设置layout格式为vertical,竖直排列
2.在Button的click事件中动态添加一个button