Active User's Tech blog by Long Nguyen

Very surprised that my weather widget app is not updated it content automatically after a view has appeared. First, I called self presentViewController to present a view, after closing that view, I hope that my below view will call  -( void )viewWillAppear:( BOOL )animated{ but nothing happens. I started figuring out that on iOS 13, the view which is presented is displaying like a floating window, not fullscreen, like below. This is new in iOS 13. Quite cool, you can swipe the screen down, without pressing a close button. in order to get the below view called, you need to use Delegate BIG CHANGE~