How to get wifi hotspot state

Question

I am creating wifi hotspot in my phone and I want get its state change event when I switched on or off hotspot.

Answer 1

To get the current state of the hotspot AP, I use:

final WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
final int apState = (Integer) wifiManager.getClass().getMethod("getWifiApState").invoke(wifiManager);

if (apState == 13) {
    // Ap Enabled
}

And to get updates when the hotspot AP gets enabled/disabled, receive the "android.net.wifi.WIFI_AP_STATE_CHANGED" intent in a BroadcastReceiver:

public class WifiAPReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction() == "android.net.wifi.WIFI_AP_STATE_CHANGED") {
            int apState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 0);
            if (apState == 13) {
                // Hotspot AP is enabled
            } else {
                // Hotspot AP is disabled/not ready
            }
        }
    }
}

Also, don't forget your declaration and permissions in the Manifest: