如何检查SIM卡是否可用于Android设备？

Question

我需要帮助检查设备是否有编程的SIM卡。请提供示例代码。

Answer 1

使用TelephonyManager。

http://developer.android.com/reference/android/telephony/TelephonyManager.html

由于Falmarri笔记，你会想使用getPhoneType首先，就看你甚至处理一个GSM电话。如果你是，那么你也可以获得SIM状态。

TelephonyManager telMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); 
    int simState = telMgr.getSimState(); 
      switch (simState) { 
       case TelephonyManager.SIM_STATE_ABSENT: 
        // do something 
        break; 
       case TelephonyManager.SIM_STATE_NETWORK_LOCKED: 
        // do something 
        break; 
       case TelephonyManager.SIM_STATE_PIN_REQUIRED: 
        // do something 
        break; 
       case TelephonyManager.SIM_STATE_PUK_REQUIRED: 
        // do something 
        break; 
       case TelephonyManager.SIM_STATE_READY: 
        // do something 
        break; 
       case TelephonyManager.SIM_STATE_UNKNOWN: 
        // do something 
        break; 
      } 

---

编辑：

开始在API 26（的AndroidØ预览），您可以通过使用getSimState(int slotIndex)查询SIMSTATE个人卡插槽，即：

int simStateMain = telMgr.getSimState(0); 
int simStateSecond = telMgr.getSimState(1); 

official documentation

如果你有和年长的API开发时，可以使用TelephonyManager's

String getDeviceId (int slotIndex) 
//returns null if device ID is not available. ie. query slotIndex 1 in a single sim device 

int devIdSecond = telMgr.getDeviceId(1); 

//if(devIdSecond == null) 
// no second sim slot available 

这是在API中加入23 - 文档here

Answer 2

你可以用下面的代码检查：

public static boolean isSimSupport(Context context) 
    { 
     TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); //gets the current TelephonyManager 
     return !(tm.getSimState() == TelephonyManager.SIM_STATE_ABSENT); 

    } 

Answer 3

找到了另一种方法来做到这一点。

public static boolean isSimStateReadyorNotReady() { 
     int simSlotCount = sSlotCount; 
     String simStates = SystemProperties.get("gsm.sim.state", ""); 
     if (simStates != null) { 
      String[] slotState = simStates.split(","); 
      int simSlot = 0; 
      while (simSlot < simSlotCount && slotState.length > simSlot) { 
       String simSlotState = slotState[simSlot]; 
       Log.d("MultiSimUtils", "isSimStateReadyorNotReady() : simSlot = " + simSlot + ", simState = " + simSlotState); 
       if (simSlotState.equalsIgnoreCase("READY") || simSlotState.equalsIgnoreCase("NOT_READY")) { 
        return true; 
       } 
       simSlot++; 
      } 
     } 
     return false; 
    }