多选按钮（CheckBox）

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical"
 6     android:paddingBottom="@dimen/activity_vertical_margin"
 7     android:paddingLeft="@dimen/activity_horizontal_margin"
 8     android:paddingRight="@dimen/activity_horizontal_margin"
 9     android:paddingTop="@dimen/activity_vertical_margin"
10     tools:context="first.pack.MainActivity$PlaceholderFragment" >
11 
12     <CheckBox
13         android:id="@+id/eatId"
14         android:layout_width="wrap_content"
15         android:layout_height="wrap_content"
16         android:text="吃饭" />
17     
18     <CheckBox
19         android:id="@+id/sleepId"
20         android:layout_width="wrap_content"
21         android:layout_height="wrap_content"
22         android:text="睡觉" />
23     
24     <CheckBox
25         android:id="@+id/dotaId"
26         android:layout_width="wrap_content"
27         android:layout_height="wrap_content"
28         android:text="dota" />
29 
30 </LinearLayout>

 1 package first.pack;
 2 
 3 import android.os.Bundle;
 4 import android.provider.Settings.System;
 5 import android.support.v4.app.Fragment;
 6 import android.support.v7.app.ActionBarActivity;
 7 import android.util.Log;
 8 import android.view.LayoutInflater;
 9 import android.view.Menu;
10 import android.view.MenuItem;
11 import android.view.View;
12 import android.view.ViewGroup;
13 import android.widget.CheckBox;
14 
15 public class MainActivity extends ActionBarActivity {
16 
17     @Override
18     protected void onCreate(Bundle savedInstanceState) {
19         super.onCreate(savedInstanceState);
20         setContentView(R.layout.activity_main);
21 
22         if (savedInstanceState == null) {
23             getSupportFragmentManager().beginTransaction()
24                     .add(R.id.container, new PlaceholderFragment()).commit();
25         }
26     }
27 
28     @Override
29     public boolean onCreateOptionsMenu(Menu menu) {
30 
31         // Inflate the menu; this adds items to the action bar if it is present.
32         getMenuInflater().inflate(R.menu.main, menu);
33         return true;
34     }
35 
36     @Override
37     public boolean onOptionsItemSelected(MenuItem item) {
38         // Handle action bar item clicks here. The action bar will
39         // automatically handle clicks on the Home/Up button, so long
40         // as you specify a parent activity in AndroidManifest.xml.
41         int id = item.getItemId();
42         if (id == R.id.action_settings) {
43             return true;
44         }
45         return super.onOptionsItemSelected(item);
46     }
47 
48     /**
49      * A placeholder fragment containing a simple view.
50      */
51     public static class PlaceholderFragment extends Fragment {
52 
53         private CheckBox eatBox;
54         private CheckBox sleepBox;
55         private CheckBox dotaBox;
56         
57         public PlaceholderFragment() {
58         }
59 
60         @Override
61         public View onCreateView(LayoutInflater inflater, ViewGroup container,
62                 Bundle savedInstanceState) {
63             View rootView = inflater.inflate(R.layout.fragment_main, container,
64                     false);
65             
66             eatBox = (CheckBox)rootView.findViewById(R.id.eatId);
67             sleepBox = (CheckBox)rootView.findViewById(R.id.sleepId);
68             dotaBox = (CheckBox)rootView.findViewById(R.id.dotaId);
69             
70             OnBoxClickListener listener = new OnBoxClickListener();
71             
72             eatBox.setOnClickListener(listener);
73             sleepBox.setOnClickListener(listener);
74             dotaBox.setOnClickListener(listener);
75             
76             return rootView;
77         }
78         
79         public class OnBoxClickListener implements android.view.View.OnClickListener{
80 
81             @Override
82             public void onClick(View args) {
83                 // TODO Auto-generated method stub
84                 Log.i("tag","Checkbox is clicked");  //打印语句Log.i(“tag”,"要打印的语句").需要import android.util.Log; 
85             }
86             
87         }
88     }
89 }

1 public class OnBoxClickListener implements android.view.View.OnClickListener{
2 
3             @Override
4             public void onClick(View args) {   //参数args即调用onClick的对象,是eatBox或者dotaBox或者sleepBox
5                 // TODO Auto-generated method stub
6                 Log.i("tag",args.getId()+"");//findViewbyId是根据id得到对象,getId是根据对象得到其id
7             }            
8         }

 1 public class OnBoxClickListener implements android.view.View.OnClickListener{
 2 
 3             @Override
 4             public void onClick(View args) {
 5                 // TODO Auto-generated method stub
 6                 CheckBox box = (CheckBox)args;//向下转型为CheckBox类型  
 7                 if(box.getId() == R.id.eatId){
 8                     if(box.isChecked()){
 9                         Log.i("tag","eatBox is Checked");
10                     }
11                     else{
12                         Log.i("tag","eatBox is unChecked");
13                     }
14                 }
15                 else if(box.getId() == R.id.sleepId){
16                     
17                 }
18                 else if(box.getId() == R.id.dotaId){
19                     
20                 }
21             }            
22         }