I am getting IMEI null in Android Q?

问题

I am getting the IMEI ID null from the telephonymanager. What to do?

is there any workaround for that?

回答1:

Android Q has restricted to access for both IMEI and serial no. It is available only for platform and apps with special carrier permission. Also the permission READ_PRIVILEGED_PHONE_STATE is not available for non platform apps.

If you try to access it throws below exception

java.lang.SecurityException: getImeiForSlot: The user 10180 does not meet the requirements to access device identifiers.

Please refer documentation: https://developer.android.com/preview/privacy/data-identifiers#device-ids

Also refer Issue

回答2:

This just would not work as of Android Q. Third party apps can not use IMEI nor the serial number of a phone and other non-resettable device identifiers.

The only permissions that are able to use those is READ_PRIVILEGED_PHONE_STATE and that cannot be used by any third party apps - Manufacture and Software Applications. If you use that method you will get an error Security exception or get null .

You can still try to get a unique id by using:

import android.provider.Settings.Secure;

private String android_id = Secure.getString(getContext().getContentResolver(),Secure.ANDROID_ID);

回答3:

As the best practices suggest. " you can avoid using hardware identifiers, such as SSAID (Android ID) and IMEI, without limiting required functionality."

Rather go for an instance ID such as String uniqueID = UUID.randomUUID().toString(); or FirebaseInstanceId.getInstance().getId();

回答4:

They mentioned: If your app is the device or profile owner app, you need only the READ_PHONE_STATE permission to access non-resettable device identifiers, even if your app targets Android 10 or higher.

I tried deploying via EMM as device owner app but not success.

回答5:

you can change other way, i use uuid to replace devices id.

 String uniquePseudoID = "35" +
            Build.BOARD.length() % 10 +
            Build.BRAND.length() % 10 +
            Build.DEVICE.length() % 10 +
            Build.DISPLAY.length() % 10 +
            Build.HOST.length() % 10 +
            Build.ID.length() % 10 +
            Build.MANUFACTURER.length() % 10 +
            Build.MODEL.length() % 10 +
            Build.PRODUCT.length() % 10 +
            Build.TAGS.length() % 10 +
            Build.TYPE.length() % 10 +
            Build.USER.length() % 10;
    String serial = Build.getRadioVersion();
    String uuid = new UUID(uniquePseudoID.hashCode(), serial.hashCode()).toString();
    AppLog.d("Device ID",uuid);

回答6:

Targeting Android Q, third party apps can't access IMEI at all. Android Q doc is misleading while stating

Starting in Android Q, apps must have the READ_PRIVILEGED_PHONE_STATE privileged permission in order to access the device's non-resettable identifiers, which include both IMEI and serial number. https://developer.android.com/preview/privacy/data-identifiers#device-ids

But when I actually tried to implement it, I am receiving this exception:

java.lang.SecurityException: getDeviceId: The user 10132 does not meet the requirements to access device identifiers.

Someone had reported this on google's issue tracker where a Googler said that this is intended behaviour and IMEI on Q+ is only available for system level apps.

Status: Won't Fix (Intended Behavior) This is Working As Intended. IMEI is a personal identifier and this is not given out to apps as a matter of policy. There is no workaround.

https://issuetracker.google.com/issues/129583175#comment10

来源：https://stackoverflow.com/questions/55173823/i-am-getting-imei-null-in-android-q

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