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本文实例讲述了Android开发中CheckBox的简单用法。分享给大家供大家参考,具体如下:
CheckBox是一种在界面开发中比较常见的控件,Android中UI开发也有CheckBox,简单的说下它的使用,每个CheckBox都要设置监听,设置的监听为CompouButton.OnCheckedChangedListener()。
package com.zhuguangwei;import android.app.Activity;import android.os.Bundle;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.TextView;public class ChkBoxActivity extends Activity {private TextView myTextView;private CheckBox myApple;private CheckBox myOrange;private CheckBox myBanana;private CheckBox myWaterMelon;private CheckBox myStrawBerry;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);//通过ID找到TextViewmyTextView = (TextView) findViewById(R.id.myTextView);//通过ID找到这几个CheckBoxmyApple = (CheckBox) findViewById(R.id.Apple);myOrange = (CheckBox) findViewById(R.id.Orange);myBanana = (CheckBox) findViewById(R.id.banana);myWaterMelon = (CheckBox) findViewById(R.id.watermelon);myStrawBerry = (CheckBox) findViewById(R.id.strawberry);myApple.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubif(isChecked){myTextView.append(myApple.getText().toString());}else{if(myTextView.getText().toString().contains("苹果")){myTextView.setText(myTextView.getText().toString().replace("苹果", ""));}}}});myOrange.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubif(isChecked){myTextView.append(myOrange.getText().toString());}else{if(myTextView.getText().toString().contains("橘子")){myTextView.setText(myTextView.getText().toString().replace("橘子", ""));}}}});myBanana.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubif(isChecked){myTextView.append(myBanana.getText().toString());}else{if(myTextView.getText().toString().contains("香蕉")){myTextView.setText(myTextView.getText().toString().replace("香蕉", ""));}}}});myWaterMelon.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubif(isChecked){myTextView.append(myWaterMelon.getText().toString());}else{if(myTextView.getText().toString().contains("西瓜")){myTextView.setText(myTextView.getText().toString().replace("西瓜", ""));}}}});myStrawBerry.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {@Overridepublic void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {// TODO Auto-generated method stubif(isChecked){myTextView.append(myStrawBerry.getText().toString());}else{if(myTextView.getText().toString().contains("草莓")){myTextView.setText(myTextView.getText().toString().replace("草莓", ""));}}}});}}
main.xml文件内容为:
<?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"><TextViewandroid:id="@+id/myTextView"android:layout_width="fill_parent"android:layout_height="wrap_content"android:text="请选择你一下你喜欢吃的水果:"/><CheckBoxandroid:id="@+id/Apple"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="苹果"/><CheckBoxandroid:id="@+id/Orange"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="橘子"/><CheckBoxandroid:id="@+id/banana"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="香蕉"/><CheckBoxandroid:id="@+id/watermelon"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="西瓜"/><CheckBoxandroid:id="@+id/strawberry"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="草莓"/></LinearLayout>
运行结果为:

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希望本文所述对大家Android程序设计有所帮助。