反射的方法获取android的Imei

在有些手机(vivo)通过以下方法获取android手机的imei会返回一串英文:

  public static String getDeviceIMEI(Context ctx) {
        TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
        if (tm != null && ActivityCompat.checkSelfPermission(ctx, Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED) {
            return tm.getDeviceId();
        } else {
            return "";
        }
    }

改用反射的反射,ok

/**
 *slotId 卡槽
 */
  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 "";
        }
    }

注意添加权限

<uses-permission android:name="android.permission.READ_PHONE_STATE" />