Android APN设置 获取APN列表

               

转自：http://blog.csdn.net/skiffloveblue/article/details/7920655

由于Android对于APN的网络API没有公开，不过我们可以阅读源代码，然后进行数据库操作，系统会自动监听数据库的变化，从而实现开启或者关闭APN。

大家可以研究一下frameworks/base/core/java/android/provider/Telephony.java这个类，

比较重要的就是 URI 和数据库字段： content://telephony/carriers

字段可以在Telephony.java中找到。

其实原理很简单 ：

1 、 当开启APN的时候，设置一个正确的移动或者联通的APN

2、 关闭的时候设置一个错误APN就会自动关闭网络

请看代码：Activity：

[java] view plain copy print ?

1. package cc.mdev.apn;   
2.    
3. import java.util.ArrayList;   
4. import java.util.List;   
5.    
6. import android.app.Activity;   
7. import android.content.ContentValues;   
8. import android.database.Cursor;   
9. import android.net.Uri;   
10. import android.os.Bundle;   
11. import android.util.Log;   
12. import android.view.View;   
13. import android.widget.Button;   
14.    
15.    
16. /**
17. * 這裡是Activity
18. * @author SinFrancis wong
19. * @site http://mdev.cc
20. * @wiki http://mdev.cc/wiki
21. * @since 2010-01-08
22. */   
23. public class Mainextends Activity {   
24.     /** Called when the activity is first created. */   
25.     Uri uri = Uri.parse("content://telephony/carriers");   
26.     @Override   
27.     public void onCreate(Bundle savedInstanceState) {   
28.         super.onCreate(savedInstanceState);   
29.         setContentView(R.layout.main);   
30.            
31.         Button open= (Button) findViewById(R.id.open);   
32.         Button close= (Button) findViewById(R.id.close);   
33.            
34.         open.setOnClickListener(new View.OnClickListener() {   
35.                
36.             @Override   
37.             public void onClick(View v) {   
38.                 openAPN();   
39.             }   
40.         });   
41.            
42.            
43.         close.setOnClickListener(new View.OnClickListener() {   
44.                
45.             @Override   
46.             public void onClick(View v) {   
47.                 closeAPN();   
48.             }   
49.         });   
50.            
51.     }   
52.        
53.     public  void openAPN(){   
54.            
55.         List<APN> list = getAPNList();   
56.         for (APN apn : list) {   
57.             ContentValues cv = new ContentValues();   
58.             cv.put("apn", APNMatchTools.matchAPN(apn.apn));   
59.             cv.put("type", APNMatchTools.matchAPN(apn.type));   
60.             getContentResolver().update(uri, cv, "_id=?",new String[]{apn.id});   
61.                
62.         }   
63.     }   
64.        
65.     public void closeAPN(){   
66.         List<APN> list = getAPNList();   
67.         for (APN apn : list) {   
68.             ContentValues cv = new ContentValues();   
69.             cv.put("apn", APNMatchTools.matchAPN(apn.apn)+"mdev");   
70.             cv.put("type", APNMatchTools.matchAPN(apn.type)+"mdev");   
71.             getContentResolver().update(uri, cv, "_id=?", new String[]{apn.id});   
72.                
73.         }   
74.     }   
75.        
76.     private List<APN> getAPNList(){   
77.         String tag = "Main.getAPNList()";   
78.            
79.         //current不为空表示可以使用的APN   
80.         String  projection[] = {"_id,apn,type,current"};   
81.         Cursor cr = this.getContentResolver().query(uri, projection,null, null,null);   
82.            
83.         List<APN> list = new ArrayList<APN>();   
84.            
85.         while(cr!=null && cr.moveToNext()){   
86.             Log.d(tag, cr.getString(cr.getColumnIndex("_id")) +"  " + cr.getString(cr.getColumnIndex("apn")) +"  " + cr.getString(cr.getColumnIndex("type"))+"  " + cr.getString(cr.getColumnIndex("current")));   
87.             APN a = new APN();   
88.             a.id = cr.getString(cr.getColumnIndex("_id"));   
89.             a.apn = cr.getString(cr.getColumnIndex("apn"));   
90.             a.type = cr.getString(cr.getColumnIndex("type"));   
91.             list.add(a);   
92.         }   
93.         if(cr!=null)   
94.         cr.close();   
95.         return list;   
96.     }   
97.        
98.        
99.     public staticclass APN{   
100.         String id;   
101.         String apn;   
102.         String type;   
103.     }   
104.        
105. }   

package cc.mdev.apn;    import java.util.ArrayList;  import java.util.List;    import android.app.Activity;  import android.content.ContentValues;  import android.database.Cursor;  import android.net.Uri;  import android.os.Bundle;  import android.util.Log;  import android.view.View;  import android.widget.Button;      /**  * 這裡是Activity  * @author SinFrancis wong  * @site http://mdev.cc  * @wiki http://mdev.cc/wiki  * @since 2010-01-08  */  public class Main extends Activity {      /** Called when the activity is first created. */      Uri uri = Uri.parse("content://telephony/carriers");      @Override      public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.main);                    Button open= (Button) findViewById(R.id.open);          Button close= (Button) findViewById(R.id.close);                    open.setOnClickListener(new View.OnClickListener() {                            @Override              public void onClick(View v) {                  openAPN();              }          });                              close.setOnClickListener(new View.OnClickListener() {                            @Override              public void onClick(View v) {                  closeAPN();              }          });                }            public  void openAPN(){                    List<APN> list = getAPNList();          for (APN apn : list) {              ContentValues cv = new ContentValues();              cv.put("apn", APNMatchTools.matchAPN(apn.apn));              cv.put("type", APNMatchTools.matchAPN(apn.type));              getContentResolver().update(uri, cv, "_id=?", new String[]{apn.id});                        }      }            public void closeAPN(){          List<APN> list = getAPNList();          for (APN apn : list) {              ContentValues cv = new ContentValues();              cv.put("apn", APNMatchTools.matchAPN(apn.apn)+"mdev");              cv.put("type", APNMatchTools.matchAPN(apn.type)+"mdev");              getContentResolver().update(uri, cv, "_id=?", new String[]{apn.id});                        }      }            private List<APN> getAPNList(){          String tag = "Main.getAPNList()";                    //current不为空表示可以使用的APN          String  projection[] = {"_id,apn,type,current"};          Cursor cr = this.getContentResolver().query(uri, projection, null, null, null);                    List<APN> list = new ArrayList<APN>();                    while(cr!=null && cr.moveToNext()){              Log.d(tag, cr.getString(cr.getColumnIndex("_id")) + "  " + cr.getString(cr.getColumnIndex("apn")) + "  " + cr.getString(cr.getColumnIndex("type"))+ "  " + cr.getString(cr.getColumnIndex("current")));              APN a = new APN();              a.id = cr.getString(cr.getColumnIndex("_id"));              a.apn = cr.getString(cr.getColumnIndex("apn"));              a.type = cr.getString(cr.getColumnIndex("type"));              list.add(a);          }          if(cr!=null)          cr.close();          return list;      }                  public static class APN{          String id;          String apn;          String type;      }        }  

APNMatchTools.java

[java] view plain copy print ?

1. package cc.mdev.apn;   
2.    
3.    
4.    
5. /**
6. * 這裡是APN匹配，用於匹配移動或者聯通的APN
7. * @author SinFrancis wong
8. * @site http://mdev.cc
9. * @wiki http://mdev.cc/wiki
10. * @since 2010-01-08
11. *
12. */   
13. public finalclass APNMatchTools {   
14.        
15.     public staticclass APNNet{   
16.         /**
17.          * 中国移动cmwap
18.          */   
19.         public static String CMWAP ="cmwap";   
20.            
21.         /**
22.          * 中国移动cmnet
23.          */   
24.         public static String CMNET ="cmnet";   
25.            
26.         //中国联通3GWAP设置        中国联通3G因特网设置        中国联通WAP设置        中国联通因特网设置  
27.         //3gwap                 3gnet                uniwap            uninet  
28.            
29.            
30.         /**
31.          * 3G wap 中国联通3gwap APN 
32.          */   
33.         public static String GWAP_3 ="3gwap";   
34.            
35.         /**
36.          * 3G net 中国联通3gnet APN 
37.          */   
38.         public static String GNET_3="3gnet";   
39.            
40.         /**
41.          * uni wap 中国联通uni wap APN 
42.          */   
43.         public static String UNIWAP="uniwap";   
44.         /**
45.          * uni net 中国联通uni net APN 
46.          */   
47.         public static String UNINET="uninet";   
48.     }   
49.    
50.    
51.    
52.     public static String matchAPN(String currentName) {           
53.         if("".equals(currentName) ||null==currentName){   
54.             return "";   
55.         }   
56.         currentName = currentName.toLowerCase();   
57.         if(currentName.startsWith(APNNet.CMNET))   
58.             return APNNet.CMNET;   
59.         else if(currentName.startsWith(APNNet.CMWAP))   
60.             return APNNet.CMWAP;   
61.         else if(currentName.startsWith(APNNet.GNET_3))   
62.             return APNNet.GNET_3;   
63.         else if(currentName.startsWith(APNNet.GWAP_3))   
64.             return APNNet.GWAP_3;   
65.         else if(currentName.startsWith(APNNet.UNINET))   
66.             return APNNet.UNINET;   
67.         else if(currentName.startsWith(APNNet.UNIWAP))   
68.             return APNNet.UNIWAP;   
69.         else if(currentName.startsWith("default"))   
70.             return "default";   
71.         else return"";   
72.        // return currentName.substring(0, currentName.length() - SUFFIX.length());  
73.     }   
74.        
75.        
76. }   

package cc.mdev.apn;        /**  * 這裡是APN匹配，用於匹配移動或者聯通的APN  * @author SinFrancis wong  * @site http://mdev.cc  * @wiki http://mdev.cc/wiki  * @since 2010-01-08  *  */  public final class APNMatchTools {            public static class APNNet{          /**          * 中国移动cmwap          */          public static String CMWAP = "cmwap";                    /**          * 中国移动cmnet          */          public static String CMNET = "cmnet";                    //中国联通3GWAP设置        中国联通3G因特网设置        中国联通WAP设置        中国联通因特网设置          //3gwap                 3gnet                uniwap            uninet                              /**          * 3G wap 中国联通3gwap APN           */          public static String GWAP_3 = "3gwap";                    /**          * 3G net 中国联通3gnet APN           */          public static String GNET_3="3gnet";                    /**          * uni wap 中国联通uni wap APN           */          public static String UNIWAP="uniwap";          /**          * uni net 中国联通uni net APN           */          public static String UNINET="uninet";      }            public static String matchAPN(String currentName) {                  if("".equals(currentName) || null==currentName){              return "";          }          currentName = currentName.toLowerCase();          if(currentName.startsWith(APNNet.CMNET))              return APNNet.CMNET;          else if(currentName.startsWith(APNNet.CMWAP))              return APNNet.CMWAP;          else if(currentName.startsWith(APNNet.GNET_3))              return APNNet.GNET_3;          else if(currentName.startsWith(APNNet.GWAP_3))              return APNNet.GWAP_3;          else if(currentName.startsWith(APNNet.UNINET))              return APNNet.UNINET;          else if(currentName.startsWith(APNNet.UNIWAP))              return APNNet.UNIWAP;          else if(currentName.startsWith("default"))              return "default";          else return "";         // return currentName.substring(0, currentName.length() - SUFFIX.length());      }              }  

APN权限

[java] view plain copy print ?

1. <uses-permission android:name="android.permission.WRITE_APN_SETTINGS"></uses-permission>  

<uses-permission android:name="android.permission.WRITE_APN_SETTINGS"></uses-permission> 

 

Android对于APN的网络API没有公开，不过我们可以阅读源代码，然后进行数据库操作，系统会自动监听数据库的变化，从而实现开启或者关闭APN。

content://telephony/carriers                                  //取得全部apn列表
content://telephony/carriers/preferapn                   //取得当前设置的apn
content://telephony/carriers/current                      //取得current=1的apn列表

[java] view plain copy print ?

1. public class APNListextends ListActivity implements OnItemClickListener{ 
2.          public staticfinal Uri APN_TABLE_URI = Uri.parse("content://telephony/carriers"); 
3.          public staticfinal Uri PREFERRED_APN_URI =Uri.parse("content://telephony/carriers/preferapn");           
4.          public staticfinal Uri CURRENT_APN_URI =Uri.parse("content://telephony/carriers/current");   
5.  
6.          @Override 
7.             protected void onCreate(Bundle savedInstanceState) { 
8.                 super.onCreate(savedInstanceState); 
9.                                 
10.                 Cursor cr = this.getContentResolver().query(PREFERRED_APN_URI,null, null,null, null);  
11.                 String[] mStrings=new String[cr.getCount()]; 
12.                 int i=0; 
13.                 while(cr!=null && cr.moveToNext()){   
14.                         mStrings[i]="ID:"+cr.getString(cr.getColumnIndex("_id"))+ 
15.                         "\n"+"name:"+cr.getString(cr.getColumnIndex("name"))+ 
16.                         "\n"+"numeric:"+cr.getString(cr.getColumnIndex("numeric"))+ 
17.                         "\n"+"mcc:"+cr.getString(cr.getColumnIndex("mcc"))+ 
18.                         "\n"+"mnc:"+cr.getString(cr.getColumnIndex("mnc"))+ 
19.                         "\n"+"apn:"+cr.getString(cr.getColumnIndex("apn"))+ 
20.                         "\n"+"user:"+cr.getString(cr.getColumnIndex("user"))+ 
21.                         "\n"+"server:"+cr.getString(cr.getColumnIndex("server"))+ 
22.                         "\n"+"password:"+cr.getString(cr.getColumnIndex("password"))+ 
23.                         "\n"+"proxy:"+cr.getString(cr.getColumnIndex("proxy"))+ 
24.                         "\n"+"port:"+cr.getString(cr.getColumnIndex("port"))+ 
25.                         "\n"+"mmsproxy:"+cr.getString(cr.getColumnIndex("mmsproxy"))+ 
26.                         "\n"+"mmsport:"+cr.getString(cr.getColumnIndex("mmsport"))+ 
27.                         "\n"+"mmsc:"+cr.getString(cr.getColumnIndex("mmsc"))+ 
28.                         "\n"+"authtype:"+cr.getString(cr.getColumnIndex("authtype"))+  
29.                         "\n"+"type:"+cr.getString(cr.getColumnIndex("type"))+  
30.                         "\n"+"current:"+cr.getString(cr.getColumnIndex("current")); 
31.                 
32.                     i++; 
33.                 }  
34.                  
35.                 setListAdapter(new ArrayAdapter<String>(this, 
36.                         android.R.layout.simple_list_item_1, mStrings)); 
37.                 getListView().setOnItemClickListener(this); 
38.          } 
39.         @Override 
40.         public void onItemClick(AdapterView<?> arg0, View arg1,int arg2, long arg3) { 
41.                 // TODO Auto-generated method stub 
42.                 SetDefaultAPN(arg2+1); 
43.         } 
44.          
45.           /*
46.      * Set an apn to be the default apn for web traffic
47.      * Require an input of the apn id to be set
48.      */ 
49.     public boolean SetDefaultAPN(int id) 
50.     { 
51.         boolean res = false; 
52.         ContentResolver resolver = getContentResolver(); 
53.         ContentValues values = new ContentValues(); 
54.          
55.         //See /etc/apns-conf.xml. The TelephonyProvider uses this file to provide 
56.         //content://telephony/carriers/preferapn URI mapping 
57.         values.put("apn_id", id);  
58.         Log.d("", "change1:"); 
59.         try 
60.         { 
61.            int cc=resolver.update(PREFERRED_APN_URI, values,null, null); 
62.            Log.d("", "change:"+cc); 
63.         } 
64.         catch (SQLException e) 
65.         { 
66.             Log.d("", "change"+e.getMessage()); 
67.         } 
68.          return res; 
69.     } 
70. } 

 

           

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