android学习日常3-15 关于单选框附加监听的复习

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MainActivity中代码

package com.mz.dx;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.RadioGroup.OnCheckedChangeListener;import android.widget.Toast;public class MainActivity extends Activity {    private RadioGroup sex_radioGroup;    private Button btn_s;    /** Called when the activity is first created. */    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        sex_radioGroup=(RadioGroup)findViewById(R.id.sex_ridioGroup);        sex_radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {            public void onCheckedChanged(RadioGroup arg0, int arg1) {                // TODO Auto-generated method stub                if(arg1==R.id.sex_man){                    Toast toast=Toast.makeText(MainActivity.this, "您选中的是男", Toast.LENGTH_LONG);                    toast.show();                }else{                    Toast toast=Toast.makeText(MainActivity.this, "您选中的是女", Toast.LENGTH_LONG);                    toast.show();                }            }        });        btn_s=(Button)findViewById(R.id.btn_s);        btn_s.setOnClickListener(new OnClickListener() {            public void onClick(View v) {                // TODO Auto-generated method stub                for(int i=0;i<sex_radioGroup.getChildCount();i++){                    RadioButton radio=(RadioButton)sex_radioGroup.getChildAt(i);                    if(radio.isChecked()){                        Toast toast=Toast.makeText(MainActivity.this,"您选中的是:"+radio.getText(),Toast.LENGTH_SHORT);                        toast.show();                    }                }            }        });    }}

前端代码

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="选择性别"/>   <RadioGroup        android:id="@+id/sex_ridioGroup"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:orientation="horizontal">       <RadioButton            android:id="@+id/sex_man"           android:layout_width="wrap_content"           android:layout_height="wrap_content"           android:text="男"/>       <RadioButton            android:id="@+id/sex_woman"           android:layout_width="wrap_content"           android:layout_height="wrap_content"           android:text="女"/>   </RadioGroup>   <Button        android:id="@+id/btn_s"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:text="提交"/></LinearLayout>

解析未完。。。

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