Android控件系列之RadioButton&RadioGroup

1 TextView tv = null;//根据不同选项所要变更的文本控件
2 @Override 3 public void onCreate(Bundle savedInstanceState) { 4 super.onCreate(savedInstanceState); 5 6 setContentView(R.layout.main); 7 8 //根据ID找到该文本控件
9 tv = (TextView)this.findViewById(R.id.tvSex);10 //根据ID找到RadioGroup实例
11 RadioGroup group = (RadioGroup)this.findViewById(R.id.radioGroup);12 //绑定一个匿名监听器
13 group.setOnCheckedChangeListener(new OnCheckedChangeListener() {14 15 @Override16 public void onCheckedChanged(RadioGroup arg0, int arg1) {17 // TODO Auto-generated method stub18 //获取变更后的选中项的ID
19 int radioButtonId = arg0.getCheckedRadioButtonId();20 //根据ID获取RadioButton的实例
21 RadioButton rb = (RadioButton)MyActiviy.this.findViewById(radioButtonId);22 //更新文本内容，以符合选中项
23 tv.setText("您的性别是：" + rb.getText());24 }25 });26 }