App Inventor 2 Close Screen with 2x press and notifier

With this example you will learn how to close app when user click 2x to back button and how to ask user close app? and close app when user select yes

Gallery URL

ai2.appinventor.mit.edu/?galleryId=6603714991357952

File	Date
WEBVIEWTOOLS EXTENSION by Luke	29-10-2019 21:47
COUNTDOWN EXTENSION by luke	29-10-2019 21:43
WordpressDB Extension	12-10-2019 23:16
WheelView Extension	12-10-2019 23:15
WebSocket Client Extension	12-10-2019 23:14

File	Date
WEBVIEWTOOLS EXTENSION by Luke	29-10-2019 21:47
COUNTDOWN EXTENSION by luke	29-10-2019 21:43
WordpressDB Extension	12-10-2019 23:16
WheelView Extension	12-10-2019 23:15
WebSocket Client Extension	12-10-2019 23:14

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SlideShow (Carousel) - ColinTreeSlideShow

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