Develop Reference

getBSSID() in android studio

I am trying to get BSSID of WiFi but i am always getting 02:00:00:00:00:00 . How to get the Wifi MAC address ?
In android Manifest -
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
Code
WifiManager wifiMgr = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = wifiMgr.getConnectionInfo();
Toast.makeText(UserDashboardActivity.this,"macAddress " + wifiInfo.getBSSID(),Toast.LENGTH_LONG).show();

I am dealing with the same problem. As far as I know using <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> permission requires also permission <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />. Also make sure to check if Settings -> Location is turned on in your mobile device settings, and that location permission is granted in App settings.
Last hope is to check ACCESS_FINE_LOCATION in runtime.

Android blacklist wifi bssid

I have a problem banning a specific bssid. I can see there is a class called WifiNative that was in api 19 but not able to access it:https://android.googlesource.com/platform/frameworks/base/+/kitkat-release/wifi/java/android/net/wifi/WifiNative.java
Is there any other way anyone knows of to do this? Maybe via JNI? Any android system libraries that can be used? c,c++?

WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
newWifiInfo = wifiManager.getConnectionInfo();
from there you can get the BSSID by doing
newWifiInfo.getBSSID()
then "blacklist" by turning off the wifi via
wifiManager.setWifiEnabled(false)
Also don't forget your permissions
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
If you want more control over your wifi state, you can use the following library to "sniff" your connection and other things
https://github.com/pwittchen/ReactiveNetwork

Preferred method for programmatically disabling wifi on android

Hi I'm new to android and was wondering what the preferred method of disabling wifi in my app. Both methods work fine but which is preferred/faster.
1
WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
wifi.setWifiEnabled(false);
Uses the following permission.
CHANGE_WIFI_STATE
2
WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
if (wifi.isWifiEnabled()) {
wifi.setWifiEnabled(false);
}
Uses the following permission.
CHANGE_WIFI_STATE
ACCESS_WIFI_STATE
Thanks in advance.

You need the following permissions in your manifest file:
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
Then you can use the following in your activity class:
WifiManager wifiManager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
wifiManager.setWifiEnabled(false);
You can, but its not really necessary, to use the following to check if it's enabled or not
boolean wifiEnabled = wifiManager.isWifiEnabled()

WiFi state is not enabling

I am trying to create a widget for enabling and disabling the wifi.
if(myWifiManager.isWifiEnabled()){
System.out.println("Toggle Wifi Enabled going to disable");
myWifiManager.setWifiEnabled(false);
}
else{
System.out.println("Wifi Disabled going to enable ");
myWifiManager.setWifiEnabled(true);
System.out.println("WI: "+myWifiManager.isWifiEnabled());
}
This is the code i am using the disabling part is working fine but the enabling part is not working fine. Soon after enabling the wifi i am printing the wifi state i am getting it as false.

Here is how to turn on and turn off wifi in android.
First you need to declare the following in your manifest file
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.UPDATE_DEVICE_STATS"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>
After doing it that on your Activity class
private WifiManager wifiManager;
#Override
public void onCreate(Bundle icicle) {
....................
wifiManager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
if(wifiManager.isWifiEnabled()){
wifiManager.setWifiEnabled(false);
}else{
wifiManager.setWifiEnabled(true);
}
}
Explanation
Get the Wifi service from our system
wifiManager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
Check the our wifi is currently turned on or turned off
if(wifiManager.isWifiEnabled()){
Turn on/off our wifi
wifiManager.setWifiEnabled();
Reference
WifiEnabler
http://google-androidlovers.blogspot.com/2012/01/scan-for-wireless-networks-in-android.html
http://www.java2s.com/Open-Source/Android/android-platform-apps/Settings/com/android/settings/wifi/WifiApEnabler.java.htm

Deprecated: Starting with Build.VERSION_CODES#Q, applications are not
allowed to enable/disable Wi-Fi. Compatibility Note: For applications
targeting android.os.Build.VERSION_CODES#Q or above, this API will
always fail and return false. If apps are targeting an older SDK
(android.os.Build.VERSION_CODES#P or below), they can continue to use
this API.
(Source)
So this will only work for devices with android Pie and below.

Download this example it is what you want
https://github.com/siddhpuraamitr/WIfi-Toggle-Widget

Enabled using coding for use wireless network

I am new to android i stuck for using coding enable location and sectury in that use wireless network enabled so please tell mi how it's possible
thanks
priya naral

From what I gathered, you want to programmatically turn on Wi-Fi.
If so, first you need to add these to your AndroidManifest.xml:
<application>
.
.
.
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
</application>
Then you have the ability to use WifiManager, so your code would look something like the following, where this is your application Context:
WifiManager manager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
if(!manager.isWifiEnabled()){
manager.setWifiEnabled(true);
}