如何从双 SIM 卡设备获取两个电话号码？

Question

I know how to get user's phone number, but let's say the user's phone is dual SIM. Is there any way to get both phone numbers? Currently I am getting the active phone number only.

Answer 1

If the phone number is indeed stored in the SIM card, then you can use subscriptionmanager API ( https://developer.android.com/reference/android/telephony/SubscriptionManager.html ) to get the details on each subscription ie for each SIM card.

You can call

• getActiveSubscriptionInfoList() which will return list. In your case if there are 2 SIM cards inserted, it should return 2 subscription infos
• In subscription info, you can call getNumber() API ( https://developer.android.com/reference/android/telephony/SubscriptionInfo.html#getNumber() ) to get the number

Please note that for this to work, the SIM card should have the phone number in it.

Please note this API is only supported from API level 22

Adding example code :

if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP_MR1) {
            SubscriptionManager subscriptionManager = SubscriptionManager.from(getApplicationContext());
            List<SubscriptionInfo> subsInfoList = subscriptionManager.getActiveSubscriptionInfoList();

            Log.d("Test", "Current list = " + subsInfoList);

            for (SubscriptionInfo subscriptionInfo : subsInfoList) {

                String number = subscriptionInfo.getNumber();

                Log.d("Test", " Number is  " + number);
            }
        }

Answer 2

I have Kotlinized @manishg code (from 5 years ago):

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
    val subscriptionManager = SubscriptionManager.from(applicationContext)
    val subsInfoList = subscriptionManager.activeSubscriptionInfoList
    Log.d("Test", "Current list = $subsInfoList")
    for (subscriptionInfo in subsInfoList) {
        val number = subscriptionInfo.number
        Log.d("Test", " Number is  $number")
    }
}

Note #1: you must add to the manifest:

uses-permission android:name="android.permission.READ_PHONE_STATE"

Note #2: you should have a permission check on your code, like:

  val subsInfoList = if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
                        //    ActivityCompat#requestPermissions
        return
    } else {
        //todo return "no permissions"
    }