http://www.linuxidc.com/Linux/2011-10/46151.htm 检测android网络问题

gistfile1.java

ConnectivityManager connectivity = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);  
            if (connectivity != null) {   
                // 获取网络连接管理的对象  
                NetworkInfo info = connectivity.getActiveNetworkInfo();  
  
                if (info != null && info.isConnected()) {  
                    // 判断当前网络是否已经连接  
                    if (info.getState() == NetworkInfo.State.CONNECTED) {  
                        if(info.getTypeName().equals("WIFI")){  
                               
                        else{   
                            Uri uri = Uri.parse("content://telephony/carriers/preferapn");  
                            Cursor cr = context.getContentResolver().query(uri, null,null, null, null);  
                            while (cr != null && cr.moveToNext()) {  
                                  // APN id  
                                  @SuppressWarnings("unused")  
                                  String id = cr.getString(cr.getColumnIndex("_id"));  
                                  // APN name  
                                  @SuppressWarnings("unused")  
                                  String apn = cr.getString(cr.getColumnIndex("apn"));  
                                  // do other things...  
                                  String strProxy = cr.getString(cr.getColumnIndex("proxy"));  
                                  String strPort = cr.getString(cr.getColumnIndex("port"));  
                                  if(strProxy != null && !"".equals(strProxy)){  
                                      Config.host = strProxy;  
                                      Config.port = Integer.valueOf(strPort);  
                                  }  
                                    
                             }  
                        }   
                    }  
                }