Programmatically retrieve IMEI number for dual SIM in android

Question

For single SIM following code works:

TelephonyManager tm = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
String imei= tm.getDeviceId();

Answer 1

Try using getDeviceId(int slotId) added in API level 23.

Returns the unique device ID of a subscription, for example, the IMEI for GSM and the MEID for CDMA phones. Return null if device ID is not available.

Requires Permission: READ_PHONE_STATE