控件_RadioGroup&&RadioButton(单选按钮)和Toast

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <RadioGroup
        android:id="@+id/genderGroup"
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:orientation="vertical"
        >
        <RadioButton
            android:id="@+id/man"
             android:layout_width="wrap_content" 
              android:layout_height="wrap_content" 
              android:text="男"
            />
        <RadioButton
        android:id="@+id/woman"
         android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:text="女"
          />
        
    </RadioGroup>

</LinearLayout>

import android.app.Activity;
import android.os.Bundle;
import android.widget.CompoundButton;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.Toast;

public class MainActivity extends Activity {
    private RadioGroup genderGroup;
    private RadioButton man;
    private RadioButton woman;
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        genderGroup = (RadioGroup) findViewById(R.id.genderGroup);
        man = (RadioButton) findViewById(R.id.man);
        woman = (RadioButton) findViewById(R.id.woman);
        
        RadioGroupListener Grouplistener = new RadioGroupListener();
        genderGroup.setOnCheckedChangeListener(Grouplistener);
        RadioButtonListener Buttonlistener = new RadioButtonListener();
        man.setOnCheckedChangeListener(Buttonlistener);
        woman.setOnCheckedChangeListener(Buttonlistener);
    }
    
    class RadioButtonListener implements android.widget.CompoundButton.OnCheckedChangeListener{
        public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
            System.out.println(isChecked);
        }
        
    }
    class RadioGroupListener implements OnCheckedChangeListener{
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            if(man.getId()==checkedId){
                System.out.println("man");//这里不是简单的输出，要有针对的处理，比如更改数据库里的内容
                Toast.makeText(MainActivity.this, "man", Toast.LENGTH_SHORT).show();
            }else if(woman.getId()==checkedId){
                System.out.println("woman");
                Toast.makeText(MainActivity.this, "woman", Toast.LENGTH_SHORT).show();
            }
        }
        
    }
}

 

 

 

RadioGroup和CheckBox

import android.os.Bundle;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;
import android.app.Activity;


public class Activity07 extends Activity {
    //对控件对象进行声明
    private RadioGroup genderGroup = null;
    private RadioButton femaleButton = null;
    private RadioButton maleButton = null;
    private CheckBox swimBox = null;
    private CheckBox runBox = null;
    private CheckBox readBox = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.radio);
        
        //通过控件的ID来得到代表控件的对象
        genderGroup = (RadioGroup)findViewById(R.id.genderGroup);
        femaleButton = (RadioButton)findViewById(R.id.femaleButton);
        maleButton = (RadioButton)findViewById(R.id.maleButton);
        swimBox = (CheckBox)findViewById(R.id.swim);
        runBox = (CheckBox)findViewById(R.id.run);
        readBox = (CheckBox)findViewById(R.id.read);
        
        //为RadioGroup设置监听器，需要注意的是，这里的监听器和Button控件的监听器有所不同
        genderGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {//传进来的是控件的id
                if(femaleButton.getId() == checkedId){
                    System.out.println("famale");//这里不是简单的输出，要有针对的处理，比如更改数据库里的内容
                    Toast.makeText(Activity07.this,"famale", Toast.LENGTH_SHORT).show();//用于提示用户
                }
                else if(maleButton.getId() == checkedId){
                    System.out.println("male");
                    Toast.makeText(Activity07.this,"male", Toast.LENGTH_SHORT).show();//用于提示用户
                }
                
            }
        });
        
      //为多选按钮添加监听器
        swimBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {//传进来的是是否选中
                if(isChecked){
                    System.out.println("swim is checked");
                }else{
                    System.out.println("swim is unchecked");
                }
                
            }
        });
        
        runBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(isChecked){
                    System.out.println("run is checked");
                }else{
                    System.out.println("run is unchecked");
                }
                
            }
        });
        
        readBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(isChecked){
                    System.out.println("read is checked");
                }else{
                    System.out.println("read is unchecked");
                }
                
            }
        });
    }
}

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<RadioGroup
    android:id="@+id/genderGroup"
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:orientation="vertical"
    >
    <RadioButton
        android:id="@+id/femaleButton"
         android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:text="@string/female"
          />
    <RadioButton
        android:id="@+id/maleButton"
         android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:text="@string/male"
          />
</RadioGroup>


<CheckBox
    android:id="@+id/swim"
     android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="@string/swim"
      />
<CheckBox
    android:id="@+id/run"
     android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="@string/run"
      />
<CheckBox
    android:id="@+id/read"
     android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="@string/read"
      />
</LinearLayout>