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I want to know that my Mobile device is in Wi-Fi Direct or in hotspot connection programmatically.
Thanks please help me.

Please go through this link
Check whether android wifip2p connection was successful?
It is well explained in android developer
https://developer.android.com/guide/topics/connectivity/wifip2p.html

For wifi-direct
First add permissions in manifest
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.nsdchat"
...
<uses-permission
android:required="true"
android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission
android:required="true"
android:name="android.permission.CHANGE_WIFI_STATE"/>
<uses-permission
android:required="true"
android:name="android.permission.INTERNET"/>
Then in onCreate()
private final IntentFilter intentFilter = new IntentFilter();
...
public void onCreate(Bundle savedInstanceState) {
WifiP2pManager manager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE);
WifiP2pManager.Channel channel = manager.initialize(this, getMainLooper(), null);
intentFilter.addAction(WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION);
}
Check this link for more methods and details
For hotspot
public void getClientList() {
int macCount = 0;
BufferedReader br = null;
try {
br = new BufferedReader(new FileReader("/proc/net/arp"));
String line;
while ((line = br.readLine()) != null) {
String[] splitted = line.split(" +");
if (splitted != null ) {
// Basic sanity check
String mac = splitted[3];
System.out.println("Mac : Outside If "+ mac );
if (mac.matches("..:..:..:..:..:..")) {
macCount++;
/* ClientList.add("Client(" + macCount + ")");
IpAddr.add(splitted[0]);
HWAddr.add(splitted[3]);
Device.add(splitted[5]);*/
System.out.println("Mac : "+ mac + " IP Address : "+splitted[0] );
System.out.println("Mac_Count " + macCount + " MAC_ADDRESS "+ mac);
Toast.makeText(
getApplicationContext(),
"Mac_Count " + macCount + " MAC_ADDRESS "
+ mac, Toast.LENGTH_SHORT).show();
}
/* for (int i = 0; i < splitted.length; i++)
System.out.println("Addressssssss "+ splitted[i]);*/
}
}
} catch(Exception e) {
}
}