This app take care of that for you. WiFi Auto On Off This allows you to automatically enable WiFi after use, when the phone goes to sleep , and enable Wifi only when you need it . When WiFi is activated, it automatically connects to the last connected network without wire, so there is no need for you to do anything soit.Cette application can be a battery saver for your phone or tablet . Your battery may last longer now than ever.
For More Info Google Play
Supported Android
{1.5 and UP}
Supported Android Version:-
Eclair (2.0, 2.1)- Froyo (2.2–2.2.3)- Gingerbread (2.3–2.3.7)- Honeycomb (3.0–3.2.6)- Ice Cream Sandwich (4.0–4.0.4)- Jelly Bean(4.1–4.3.1)- KitKat (4.4–4.4.4)- Lollipop (5.0–5.0.2) or UP
Download Auto Wifi On Off Switch 2.3 APK For Android