There are several ways to kill Android applications like via task manager, Android built-in tools or using shortcut key. Personally, I prefer using the shortcut. All you need to do is enable the function and long press the BACK button to kill the foreground Android application.
How to force kill Android application via shortcut key?
- Go to Settings.
- Then Applications.
- Select Development.
- Tick Stop app via long-press ~ Long-pressing the BACK button will kill the foreground application.
- That’s all.