Android 判斷SIM卡屬于哪個移動運營商

Android這樣獲取本機網絡提供商呢？請看下面代碼：

    public String getProvidersName()  
     {  
       String str = "N/A";  
       try  
       {  
         this.IMSI = this.telephonyManager.getSubscriberId();  
         System.out.println(this.IMSI);  
         if (this.IMSI.startsWith("46000"))  
          str = "中國移動";  break;  
         if (this.IMSI.startsWith("46002"))  
          str = "中國移動"; break ;  
         if (this.IMSI.startsWith("46001"))  
           str = "中國聯通";  
         else if (this.IMSI.startsWith("46003"))  
           str = "中國電信";  
       }  
       catch (Exception localException)  
       {  
         localException.printStackTrace();  
       }  
            return str;  
     }  

注意申明：

 this.telephonyManager = ((TelephonyManager)paramContext.getSystemService("phone"));