Android Widget and shortcut tutorial demo
Android widget: https://developer.android.com/guide/topics/appwidgets
Android shortcut: https://developer.android.com/guide/topics/ui/shortcuts/creating-shortcuts
Android shortcut tr blog : https://utkuglsvn.medium.com/android-uygulamalar-i%CC%87%C3%A7in-k%C4%B1sayol-ekleme-39a17fa57618