问题
I have an application, which required device mac address. I'm getting mac address in Marshmallow and below easily but problem with android nougat and O. So how to find mac.
回答1:
Changed since 6.0 and later: https://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-hardware-id
To provide users with greater data protection, starting in this release, Android removes programmatic access to the device’s local hardware identifier for apps using the Wi-Fi and Bluetooth APIs. The WifiInfo.getMacAddress() and the BluetoothAdapter.getAddress() methods now return a constant value of 02:00:00:00:00:00.
To access the hardware identifiers of nearby external devices via Bluetooth and Wi-Fi scans, your app must now have the ACCESS_FINE_LOCATION or ACCESS_COARSE_LOCATION permissions.
Behavior Changes in 7.0:
Device owners can access device identifiers. A Device owner can access the Wi-Fi MAC address of a device, using DevicePolicyManagewr.getWifiMacAddress(). If Wi-Fi has never been enabled on the device, this method returns a value of null.
回答2:
After one hour,I just solved the Problem.....
DeviceAdminReceiver admin = new DeviceAdminReceiver();
DevicePolicyManager devicepolicymanager = admin.getManager(getApplicationContext());
ComponentName name1 = admin.getWho(getApplicationContext());
if (devicepolicymanager.isAdminActive(name1)){
String mac_address = devicepolicymanager.getWifiMacAddress(name1);
Log.e("macAddress",""+mac_address);
}
References :
1) Android for Work : https://developer.android.com/about/versions/nougat/android-7.0-changes.html
2) DevicePolicyManger : https://developer.android.com/reference/android/app/admin/DevicePolicyManager.html#getWifiMacAddress(android.content.ComponentName)
3) DeviceAdminReceiver: https://developer.android.com/reference/android/app/admin/DeviceAdminReceiver.html#getWho(android.content.Context)
Happy Coding....
来源:https://stackoverflow.com/questions/43338359/get-device-mac-adress-in-android-nougat-and-o-programmatically