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. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    //通過ID找到TextView
    myTextView = (TextView) findViewById(R.id.myTextView);
    //通過ID找到這幾個CheckBox
    myApple = (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() {
      @Override
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        // TODO Auto-generated method stub
        if(isChecked){
          myTextView.append(myApple.getText().toString());
        }
        else{
          if(myTextView.getText().toString().contains("蘋果")){
            myTextView.setText(myTextView.getText().toString().replace("蘋果", ""));
          }
        }
      }
    });
    myOrange.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
      @Override
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        // TODO Auto-generated method stub
        if(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() {
      @Override
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        // TODO Auto-generated method stub
        if(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() {
      @Override
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        // TODO Auto-generated method stub
        if(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() {
      @Override
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        // TODO Auto-generated method stub
        if(isChecked){
          myTextView.append(myStrawBerry.getText().toString());
        }
        else{
          if(myTextView.getText().toString().contains("草莓")){
            myTextView.setText(myTextView.getText().toString().replace("草莓", ""));
          }
        }
      }
    });
  }
}

<?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"
  >
  <TextView
    android:id="@+id/myTextView"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="請選擇你一下你喜歡吃的水果："
  />
  <CheckBox
    android:id="@+id/Apple"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="蘋果"
  />
  <CheckBox
    android:id="@+id/Orange"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="橘子"
  />
  <CheckBox
    android:id="@+id/banana"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="香蕉"
  />
  <CheckBox
    android:id="@+id/watermelon"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="西瓜"
  />
  <CheckBox
    android:id="@+id/strawberry"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="草莓"
  />
</LinearLayout>