setOnCheckedChangeListener监听check事件

clearCheck选择状态消除

package com.example.radiogroup;import android.os.Bundle;import android.support.v7.app.ActionBarActivity;import android.view.View;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.RadioGroup.OnCheckedChangeListener;import android.widget.TextView;public class MainActivity extends ActionBarActivity {	public TextView mTextView1;	public RadioGroup mRadioGroup1; 	public RadioButton mRadio1,mRadio2; 	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.activity_main);				 mTextView1 = (TextView) findViewById(R.id.myTextView); 		 mRadioGroup1 = (RadioGroup) findViewById(R.id.myRadioGroup);      		 mRadio1 = (RadioButton) findViewById(R.id.myRadioButton1);  		 mRadio2 = (RadioButton) findViewById(R.id.myRadioButton2); 		    		 mRadioGroup1.setOnCheckedChangeListener(new OnCheckedChangeListener() {						@Override			public void onCheckedChanged(RadioGroup group, int checkedId) {				// TODO Auto-generated method stub				if(mRadio1.getId() == checkedId){					mTextView1.setText("nan");				}else{					mTextView1.setText("nv");				}			}		});	}	public void bt(View view){		//将选择状态消除掉		mRadioGroup1.clearCheck();	}}