Add code to cancel all HTTP request operation queue operations when the user taps the back button.
Add code to cancel all HTTP request operation queue operations when the user taps the back button.

Ink/ios-picker,danielzev/ios-picker,danielzev/ios-picker,mobilejohnw/ios-picker,MobileXLabs/ios-picker,MobileXLabs/ios-picker,yamill/ios-picker,yamill/ios-picker,mobilejohnw/ios-picker