Android之单选按钮，复选框使用方法集锦

Android之单选按钮，复选框使用方法汇总

XML中：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <RadioGroup
        android:id="@+id/radiogroup"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <RadioButton
            android:id="@+id/man"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="true"
            android:text="man" />

        <RadioButton
            android:id="@+id/woman"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="woman" />

        <CheckBox
            android:id="@+id/basketball"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="篮球" />

        <CheckBox
            android:id="@+id/pingpang"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="true"
            android:text="乒乓球" />

        <CheckBox
            android:id="@+id/football"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="足球" />
    </RadioGroup>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/save"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="saveAll"
            android:text="save" />

        <Button
            android:id="@+id/reset"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="reset"
            android:text="reset" />
    </LinearLayout>

</LinearLayout>

MainActivity中：

package com.example.checkboxtext;

import android.os.Bundle;
import android.app.Activity;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

public class MainActivity extends Activity {

	private int [] ids = {R.id.basketball,R.id.pingpang,R.id.football};

	private CheckBox[] checkBoxs;
	private RadioGroup rg;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		rg = (RadioGroup) findViewById(R.id.radiogroup);
		checkBoxs = new CheckBox[ids.length];
		for(int i = 0;i<ids.length;i++){
			checkBoxs[i] = (CheckBox) this.findViewById(ids[i]);
			/*
			 * 
			 * checkBoxs[i].setOnClickListener(new OnClickListener() {

				@Override
				public void onClick(View v) {
					// TODO Auto-generated method stub
					CheckBox checkBox = (CheckBox) v;
					Toast.makeText(MainActivity.this,checkBox.getText().toString()+""+checkBox.isChecked(),0 ).show();
					//获取选取的选项卡内容和是否被选中
				}
			});
			 * */
			/*
			 * 状态改变监听
			 * */
			checkBoxs[i].setOnCheckedChangeListener(new OnCheckedChangeListener() {

				@Override
				public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
					// TODO Auto-generated method stub
					Toast.makeText(MainActivity.this, buttonView.getText().toString()+","+isChecked, 0).show();

				}
			});

		}

	}
	public void reset(View view){
		for(CheckBox cb:checkBoxs){
			cb.setChecked(false);
		}
	}
	public void saveAll(View view){
		int id = rg.getCheckedRadioButtonId();//获取选择的单选按钮id
		StringBuffer stringBuffer = new StringBuffer();

		RadioButton radioButton = (RadioButton) this.findViewById(id);//根据id点获取选中单选按钮
		stringBuffer.append(radioButton.getText().toString()+",");//获取按钮上 的字符串进行字符串拼接

		/*
		 * 获取选中的复选框内容
		 * */

		for(CheckBox cb :checkBoxs){
			if(cb.isChecked()){
				stringBuffer.append(cb.getText().toString()+",");
			}
		}
		Toast.makeText(this, stringBuffer.toString(), 0).show();
	}
}

常用监听事件：

获取选中的内容：
public void saveAll(View view){
int id = rg.getCheckedRadioButtonId();//获取选择的单选按钮id
StringBuffer stringBuffer = new StringBuffer();


RadioButton radioButton = (RadioButton) this.findViewById(id);//根据id点获取选中单选按钮
stringBuffer.append(radioButton.getText().toString()+",");//获取按钮上 的字符串进行字符串拼接


/*
* 获取选中的复选框内容
* */


for(CheckBox cb :checkBoxs){
if(cb.isChecked()){
stringBuffer.append(cb.getText().toString()+",");
}
}
Toast.makeText(this, stringBuffer.toString(), 0).show();
}


复选框重置：


public void reset(View view){
for(CheckBox cb:checkBoxs){
cb.setChecked(false);
}
}


给复选框每一个选项添加监听事件之setOnClickListener




checkBoxs[i].setOnClickListener(new OnClickListener() {


@Override
public void onClick(View v) {
// TODO Auto-generated method stub
CheckBox checkBox = (CheckBox) v;
Toast.makeText(MainActivity.this,checkBox.getText().toString()+""+checkBox.isChecked(),0 ).show();
//获取选取的选项卡内容和是否被选中
}
});
给复选框每一个选项添加监听事件之setOnCheckedChangeListener


checkBoxs[i].setOnCheckedChangeListener(new OnCheckedChangeListener() {


@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this, buttonView.getText().toString()+","+isChecked, 0).show();


}
});


注意：setOnClickListener与setOnCheckedChangeListener的区别：
前者是点击选择时才执行点击选中，点击取消两种情况
后者是状态只有一改变就会触发执行，状态改变有多种情况：比如点击选中，点击取消，点击重置都可触发