Android中获取IMEI号

参考网址： https://www.cnblogs.com/fnlingnzb-learner/p/7580691.html

https://www.jianshu.com/p/c46b6c9b8990

    /**
     * 获取手机IMEI号
     *
     * 需要动态权限: android.permission.READ_PHONE_STATE
     */
    public static String getIMEI(Context context) {
        TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(context.TELEPHONY_SERVICE);
        @SuppressLint("MissingPermission")
        String imei = telephonyManager.getDeviceId();
        @SuppressLint({"NewApi", "MissingPermission", "LocalSuppress"})
        String str = telephonyManager.getImei();
        String id = Settings.Secure.getString(context.getApplicationContext().getContentResolver(), Settings.Secure.ANDROID_ID);
        return imei;
    }
//没有量产的手机（水货）它可能有无效的IMEI，如：0000000000000；通过上边的方法有可能获取到，也有可能获取不到

    /**这个方法一定可以获取到
     * @param slotId  slotId为卡槽Id，它的值为 0、1；
     * @return
     */
    public static String getIMEI(Context context, int slotId) {
        try {
            TelephonyManager manager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
            Method method = manager.getClass().getMethod("getImei", int.class);
            String imei = (String) method.invoke(manager, slotId);
            return imei;
        } catch (Exception e) {
            return "";
        }
    }