Develop Reference

How to get MAC address from an Android device?

I have an Android application that works on a single phone. In order to work on a single device, I need to get the MAC address or Android ID. I decided to get the MAC address because the app needs to connect on a specified WiFi network.
How to get the MAC address from an Android device?
WifiManager manager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo info = manager.getConnectionInfo();
String address = info.getMacAddress();
Currently I'm using this but it is not stable.
When the app restarts, it returns 02:00:00:00:00:00. and crashes.

//getting mac address from mobile
private String getMacAddr() {
try {
List<NetworkInterface> all = Collections.list(NetworkInterface.getNetworkInterfaces());
for (NetworkInterface nif : all) {
if (!nif.getName().equalsIgnoreCase("wlan0")) continue;
byte[] macBytes = nif.getHardwareAddress();
if (macBytes == null) {
return "";
}
StringBuilder res1 = new StringBuilder();
for (byte b : macBytes) {
// res1.append(Integer.toHexString(b & 0xFF) + ":");
res1.append(String.format("%02X:",b));
}
if (res1.length() > 0) {
res1.deleteCharAt(res1.length() - 1);
}
return res1.toString();
}
} catch (Exception ex) {
//handle exception
}
return "";
}
Use these permission in manifest
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
Get this method's return value to a String variable and use it.
String MAC = getMacAddr();
Hope I helped

Try this code
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo wInfo = wifiManager.getConnectionInfo();
String macAddress = wInfo.getMacAddress();
Log.e(TAG,"MAC Address : " + macAddress);
Also, add below permission in your manifest file
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
and output is
MAC Address : 84:11:9E:B7:1E:D0

Using WifiManger, you will get MAC address
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
String macAddress = wifiInfo.getMacAddress();
Don't forget to add wifi permission
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

use this for Android ID
private String deviceId() {
return Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
}

How can I get SSID of my device on Android?

I want to get SSID of my device and I am using below code:
private void getSSID() throws InvocationTargetException, IllegalAccessException {
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
Method[] methods = wifiManager.getClass().getDeclaredMethods();
for (Method m: methods) {
if (m.getName().equals("getWifiApConfiguration")) {
WifiConfiguration config = (WifiConfiguration)m.invoke(wifiManager);
String ssid = config.SSID;
String bssid = config.BSSID;
Log.d(TAG, "getSSID: " + ssid);
Log.d(TAG, "getSSID: " + bssid);
}
}
}
But it is not working and giving null value.

You can get SSID as following
WifiManager wifiManager = (WifiManager) getSystemService (Context.WIFI_SERVICE);
WifiInfo info = wifiManager.getConnectionInfo ();
String ssid = info.getSSID();
From android 8.0 onwards we wont be getting SSID of the connected network unless GPS is turned on.

use this code
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifiManager.getConnectionInfo();
String ssid = info.getSSID();
String bssid = info.getBSSID();
add these permissions
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
since android 8 required coarse location permission

Try the below code and remember it if you are using android 7.0+ you have to turn on gps
private void getSSID(){
WifiManager wifiManager = (WifiManager) getSystemService
(Context.WIFI_SERVICE);
WifiInfo info = wifiManager.getConnectionInfo ();
String ssid = info.getSSID();
}

public static String getCurrentSSID(Context context) throws Exception {
try {
WifiManager wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
return wifiInfo.getSSID();
} catch (Exception e) {
throw new Exception("Unable to read SSID");
}
}
Just do not forget to add necessary permissions to the manifest
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

how to get SSID and BSSID OF Hotspot of my device programmatically

I want to get my own device Wi-Fi SSID and BSSID name.
How can I get this?
I tried this
WifiManager wifiManager = (WifiManager)getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiConfiguration wifiConfiguration = new WifiConfiguration();
System.out.println("BSSID"+wifiConfiguration.BSSID);
But this code gives the BSSID of the device to which i currently connected but i wants to get my own device BSSID ssid through code??
Please help Me.

If you want to get the device's hotspot SSID or BSSID, use something like this:
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
Method[] methods = wifimanager.getClass().getDeclaredMethods();
for (Method m: methods) {
if (m.getName().equals("getWifiApConfiguration")) {
WifiConfiguration config = (WifiConfiguration)m.invoke(wifimanager);
String ssid = config.SSID;
String bssid = config.BSSID;
}
}
You can use WifiManager and WifiInfo for the Wifi info the device connected to, like this:
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifiManager.getConnectionInfo();
String ssid = info.getSSID();
String bssid = info.getBSSID();
You would need the following permissions:
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
Note: since Android 8.0, you would also need location permissions (ACCESS_COARSE_LOCATION) to access the SSID or BSSID because of this, also, I think you need to have the device's location settings turned on for this to work even if you have the location permissions.

Add these permissions
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
and then use this method
public static String getBSSID(Context mContext) {
ConnectivityManager mConnectivityManager = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mNetworkInfo = mConnectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if(mNetworkInfo.isConnected()) {
final WifiManager mWifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
final WifiInfo mWifiInfo = mWifiManager.getConnectionInfo();
if(mWifiInfo != null) {
return mWifiInfo.getBSSID();
}
}
return null;
}

Get SSID when WIFI is connected

I'm trying to get the SSID of the WIFI network when my android device is connected to WIFI.
I've registered a BroadcastReceiver listening for android.net.wifi.supplicant.CONNECTION_CHANGE . I get the notification when WIFI is disconnected or reconnected. Unfortunately, I can't get the network's SSID.
I'm using the following code to find the SSID:
WifiManager wifiManager = (WifiManager) context.getSystemService(context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
String ssid = wifiInfo.getSSID();
Instead of the SSID, I get the string <unknown ssid> back.
These are the permissions in the manifest (I've added ACCESS_NETWORK_STATE just to check, I don't actually need it)
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
Why does this happen? How can I get the actual SSID? Is the broadcast fired to early, before the connection is established? Is there another broadcast I should listen to? I'm only interested in WIFI connections, not 3G connections.
Update: I just checked, wifiInfo.getBSSID() returns null.

I listen for WifiManager.NETWORK_STATE_CHANGED_ACTION in a broadcast receiver
if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(action)) {
NetworkInfo netInfo = intent.getParcelableExtra (WifiManager.EXTRA_NETWORK_INFO);
if (ConnectivityManager.TYPE_WIFI == netInfo.getType ()) {
...
}
}
I check for netInfo.isConnected(). Then I am able to use
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifiManager.getConnectionInfo();
String ssid = info.getSSID();
UPDATE
From android 8.0 onwards we wont be getting SSID of the connected network unless location services are enabled and your app has the permission to access it.

Starting with Android 8.1 (API 27), apps must be granted the ACCESS_COARSE_LOCATION (or ACCESS_FINE_LOCATION) permission in order to obtain results from WifiInfo.getSSID() or WifiInfo.getBSSID(). Apps that target API 29 or higher (Android 10) must be granted ACCESS_FINE_LOCATION.
This permission is also needed to obtain results from WifiManager.getConnectionInfo() and WifiManager.getScanResults() although it is not clear if this is new in 8.1 or was required previously.
Source: "BSSID/SSID can be used to deduce location, so require the same
location permissions for access to these WifiInfo fields
requested using WifiManager.getConnectionInfo() as for
WifiManager.getScanResults()."

If you don't want to make Broadcast Receiver then simple try
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo;
wifiInfo = wifiManager.getConnectionInfo();
if (wifiInfo.getSupplicantState() == SupplicantState.COMPLETED) {
ssid = wifiInfo.getSSID();
}
Remember every time user disconnect or connect to new SSID or any wifi state change then you need to initialize WifiInfo i.e wifiInfo = wifiManager.getConnectionInfo();

I found interesting solution to get SSID of currently connected Wifi AP.
You simply need to use iterate WifiManager.getConfiguredNetworks() and find configuration with specific WifiInfo.getNetworkId()
My example
in Broadcast receiver with action WifiManager.NETWORK_STATE_CHANGED_ACTION
I'm getting current connection state from intent
NetworkInfo nwInfo = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
nwInfo.getState()
If NetworkInfo.getState is equal to NetworkInfo.State.CONNECTED then i can get current WifiInfo object
WifiManager wifiManager = (WifiManager) getSystemService (Context.WIFI_SERVICE);
WifiInfo info = wifiManager.getConnectionInfo ();
And after that
public String findSSIDForWifiInfo(WifiManager manager, WifiInfo wifiInfo) {
List<WifiConfiguration> listOfConfigurations = manager.getConfiguredNetworks();
for (int index = 0; index < listOfConfigurations.size(); index++) {
WifiConfiguration configuration = listOfConfigurations.get(index);
if (configuration.networkId == wifiInfo.getNetworkId()) {
return configuration.SSID;
}
}
return null;
}
And very important thing this method doesn't require Location nor Location
Permisions
In API29 Google redesigned Wifi API so this solution is outdated for Android 10.

In Android 8.1 it is must to turned Location on to get SSID, if not you can get connection state but not SSID
WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = null;
if (wifiManager != null)
wifiInfo = wifiManager.getConnectionInfo();
String ssid = null;
if (wifiInfo != null)
ssid = wifiInfo.getSSID(); /*you will get SSID <unknown ssid> if location turned off*/

This is a follow up to the answer given by #EricWoodruff.
You could use netInfo's getExtraInfo() to get wifi SSID.
if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals (action)) {
NetworkInfo netInfo = intent.getParcelableExtra (WifiManager.EXTRA_NETWORK_INFO);
if (ConnectivityManager.TYPE_WIFI == netInfo.getType ()) {
String ssid = info.getExtraInfo()
Log.d(TAG, "WiFi SSID: " + ssid)
}
}
If you are not using BroadcastReceiver check this answer to get SSID using Context
This is tested on Android Oreo 8.1.0

Answer In Kotlin
Give Permissions
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
private fun getCurrentNetworkDetail() {
val connManager =
context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
val networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)
if (networkInfo.isConnected) {
val wifiManager =
context.getApplicationContext().getSystemService(Context.WIFI_SERVICE) as WifiManager
val connectionInfo = wifiManager.connectionInfo
if (connectionInfo != null && !TextUtils.isEmpty(connectionInfo.ssid)) {
Log.e("ssid", connectionInfo.ssid)
}
}
else{
Log.e("ssid", "No Connection")
}
}

For me it only worked when I set the permission on the phone itself (settings -> app permissions -> location always on).

According to the explanation of the official document, on Android 10+(API 29 and higher), declaring ACCESS_COARSE_LOCATION or
ACCESS_FINE_LOCATION permissions is not enough.
1. For foreground location:
You also need to declare a foregroundServiceType of location in your Service to use foreground location.
<service
android:name="MyNavigationService"
android:foregroundServiceType="location" ... >
<!-- Any inner elements would go here. -->
</service>
Or if your code running in the Activity, the activity should be visible to the user.
2. For background location:
You should declare the ACCESS_BACKGROUND_LOCATION permission in your app's manifest in order to request background location access at runtime.
Note: The Google Play Store has a location policy concerning device
location, restricting background location access to apps that need it
for their core functionality and meet related policy requirements.
Official document:
https://developer.android.com/training/location/permissions
https://developer.android.com/guide/topics/connectivity/wifi-scan#wifi-scan-permissions

Android 9 SSID showing NULL values use this code..
ConnectivityManager connManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if (networkInfo.isConnected()) {
WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
wifiInfo.getSSID();
String name = networkInfo.getExtraInfo();
String ssid = wifiInfo.getSSID();
return ssid.replaceAll("^\"|\"$", "");
}

Android Mobile number and Wi-Fi MAC address

I want to know Mobile number and Wi-Fi-Address .Howis this possible.Can anyone Help me

try this for Mobile Number
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
// get IMEI
String imei = tm.getDeviceId();
String phone = tm.getLine1Number();
but its not always reliable on for example non phone device. You will also need to add permision "android.permission.READ_PHONE_STATE".
for MAC address
WifiManager wfManager;
WifiInfo wifiinfo;
wfManager = (WifiManager)getSystemService(Context.WIFI_SERVICE);
wifiinfo = wfManager.getConnectionInfo();
String MAC = wifiinfo.getMacAddress();

public String getMAC() {
wifimanager= (WifiManager)getSystemService(Context.WIFI_SERVICE);
wifiinfo = wifimanager.getConnectionInfo();
MAC=wifiinfo.getMacAddress();
System.out.println("MAC address info---- "+MAC);
Toast.makeText(getApplicationContext(), "MAC address:"+MAC , Toast.LENGTH_LONG).show();
if(MAC==null){
MAC="1A:DC:5C:8E:15:7B";
}
return MAC;
}