Introduction
There are two ways to enable or disable Wi-Fi on Android devices. You may choose the method you prefer.
Instructions
NOTE: Android is highly customizable and may look different depending on your manufacturer. The steps below may vary for different devices.
Jump to Method B: Use the Settings app
Method A: Use Quick Settings
A1) Swipe down from the top edge of the screen.
A2) Tap the Internet button.
A3) Next to "Wi-Fi", slide the switch to the right to enable Wi-Fi.
If Wi-Fi was already on, you may slide the switch to the left to disable it.
Method B: Use the Settings app
B1) Swipe up from the bottom of your home screen to show all apps.
B2) Open the Settings application.
B3) Tap Network & internet.
B4) Tap Internet.
B5) Next to "Wi-Fi", slide the switch to the right to enable Wi-Fi.
If Wi-Fi was already on, you may slide the switch to the left to disable it.
Outcome
Depending on the setting you chose, Wi-Fi is either enabled or disabled on your Android device.