如何在Android设备中检查SIM卡是否可用？

Question

我需要帮助检查设备是否在编程中具有SIM卡。请提供示例代码。

Answer 1

使用TelephonyManager。

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

正如法尔玛里（Falmarri）所指出的那样 将要 想使用 GetPhoneType 首先，看看您是否甚至要处理GSM手机。如果是，那么您也可以获得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：

从API开始26（Android O预览）您可以使用使用 getSimState(int slotIndex) IE：

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

官方文件

如果您与较旧的API一起开发，则可以使用 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

在API 23-文档中添加 这里

Answer 2

您可以使用以下代码检查：

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。

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;
    }