Hii friends this is very simple trick Quickly Change Your WiFi Network in Android.
Oddly, how to quickly switch between WiFi networks is not very obvious. Sure, you can go to Settings > Wi-Fi and change it there, but there has to be a faster way, right?
Well, there is!
Swipe down twice from the top of your screen to open the Quick Settings menu, and instead of pressing on the WiFi icon (which disables it), instead press on the network’s name. You’ll immediately be given a list of all the networks in your vicinity.