一、基础知识:
单项选择组件 : RadioGroup 互相排斥
多项选择组件 : CheckBox 彼此独立
二、代码展示:
1."Activity_08\src\yan\activity_08\MainActivity.java"
package yan.activity_08;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.widget.CheckBox;import android.widget.CompoundButton;//import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.Toast;public class MainActivity extends Activity { private RadioGroup sixRadioGroup; private RadioButton femaleRadioButton; private RadioButton maleRadioButton; private CheckBox swimCheckBox; private CheckBox runCheckBox; private CheckBox readCheckBox; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); sixRadioGroup = (RadioGroup)findViewById(R.id.myRadioGroup); femaleRadioButton = (RadioButton)findViewById(R.id.myRadioButton1); maleRadioButton = (RadioButton)findViewById(R.id.myRadioButton2); swimCheckBox = (CheckBox)findViewById(R.id.swim); runCheckBox = (CheckBox)findViewById(R.id.run); readCheckBox = (CheckBox)findViewById(R.id.read); class RadioGroupCheckBoxListener implements RadioGroup.OnCheckedChangeListener{ @Override public void onCheckedChanged(RadioGroup group, int checkedId) { // TODO Auto-generated method stub if(checkedId == femaleRadioButton.getId()) { Toast.makeText(MainActivity.this, R.string.female_y_note, Toast.LENGTH_SHORT).show(); }else if(checkedId == maleRadioButton.getId()) { Toast.makeText(MainActivity.this, R.string.male_y_note, Toast.LENGTH_SHORT).show(); } } } class SwimCheckBoxListener implements OnCheckedChangeListener{ @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // TODO Auto-generated method stub if(isChecked) { Toast.makeText(MainActivity.this, R.string.swim_y_note, Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(MainActivity.this, R.string.swim_n_note, Toast.LENGTH_SHORT).show(); } } } class RunCheckBoxListener implements OnCheckedChangeListener{ @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // TODO Auto-generated method stub if(isChecked) { Toast.makeText(MainActivity.this, R.string.run_y_note, Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(MainActivity.this, R.string.run_n_note, Toast.LENGTH_SHORT).show(); } } } class ReadCheckBoxListener implements OnCheckedChangeListener{ @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // TODO Auto-generated method stub if(isChecked) { Toast.makeText(MainActivity.this, R.string.read_y_note, Toast.LENGTH_SHORT).show(); }else{ Toast.makeText(MainActivity.this, R.string.read_n_note, Toast.LENGTH_SHORT).show(); } } } swimCheckBox.setOnCheckedChangeListener(new SwimCheckBoxListener()); runCheckBox.setOnCheckedChangeListener(new RunCheckBoxListener()); readCheckBox.setOnCheckedChangeListener(new ReadCheckBoxListener()); sixRadioGroup.setOnCheckedChangeListener(new RadioGroupCheckBoxListener()); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; }}
2."Activity_08\res\layout\main.xml"
<?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" android:background="#00aaaa" > <TextView android:id="@+id/firstText" android:text="@string/hello_world" android:gravity="center_vertical" android:textSize="15pt" android:background="#aa0000" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true"/> <!--建立一個RadioGroup --> <RadioGroup android:id="@+id/myRadioGroup" android:layout_width="150dp" android:layout_height="95dp" android:orientation="vertical" android:background="#00aa00" > <!--第一個RadioButton --> <RadioButton android:id="@+id/myRadioButton1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/female" /> <!--第二個RadioButton --> <RadioButton android:id="@+id/myRadioButton2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/male" /> </RadioGroup> <CheckBox android:id="@+id/swim" android:text="@string/swim" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <CheckBox android:id="@+id/run" android:text="@string/run" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <CheckBox android:id="@+id/read" android:text="@string/read" android:layout_width="fill_parent" android:layout_height="wrap_content"/> </LinearLayout>
3."Activity_08\res\values\strings.xml"
<?xml version="1.0" encoding="utf-8"?><resources> <string name="app_name">Activity_08</string> <string name="hello_world">Hello world!</string> <string name="menu_settings">Settings</string> <string name="female">女</string> <string name="female_y_note">性别:女 被选中</string> <string name="male">男</string> <string name="male_y_note">性别:男 被选中</string> <string name="swim">游泳</string> <string name="swim_y_note">游泳被选中！</string> <string name="swim_n_note">游泳被取消选中！</string> <string name="run">跑步</string> <string name="run_y_note">跑步被选中！</string> <string name="run_n_note">跑步被取消选中！</string> <string name="read">阅读</string> <string name="read_y_note">阅读被选中！</string> <string name="read_n_note">阅读被取消选中！</string> </resources>
三、效果展示:
本文完整代码下载地址: http://download.csdn.net/detail/ypist/5146866
本文博客源地址:http://blog.csdn.net/ypist