android turning on wifi programmatically

Question

I am trying to turn add a wifi network programmatically and to connect to that network.

My code works fine if the wi-fi is already turned on.

If wi-fi is off

Answer 1

You can turn on/off wifi using following instructions :

WifiManager wManager = (WifiManager)this.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
wManager.setWifiEnabled(booleanValue); //true or false

Set following permissions to your manifest:

<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">

This code is deprecated in API 29 or over

public boolean setWifiEnabled (boolean enabled)
**This method was deprecated in API level 29**.

Starting with Build.VERSION_CODES#Q, applications are not allowed to enable/disable Wi-Fi. Compatibility Note: For applications targeting Build.VERSION_CODES.Q or above, this API will always return false and will have no effect. If apps are targeting an older SDK ( Build.VERSION_CODES.P or below), they can continue to use this API.

Source : Link

Answer 2

You need to create wifiLock with wifi mode_full, a bit strange name for that method but doing the work.