Android中Radio单选按钮操作

public class MainActivity extends Activity {private RadioGroup group_temo;private RadioButton checkRadioButton;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);group_temo = (RadioGroup) findViewById(R.id.radioGroup1);//改变默认选项group_temo.check(R.id.radio1);//获取默认被被选中值checkRadioButton = (RadioButton) group_temo.findViewById(group_temo.getCheckedRadioButtonId());Toast.makeText(this, "默认的选项的值是:"+checkRadioButton.getText(), Toast.LENGTH_LONG).show();//注册事件group_temo.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(RadioGroup group, int checkedId) {//点击事件获取的选择对象checkRadioButton = (RadioButton) group_temo.findViewById(checkedId);Toast.makeText(getApplicationContext(), "获取的ID是"+checkRadioButton.getText(), Toast.LENGTH_LONG).show();}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}
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