Stock Android Isn't Perfect: 4.4 KitKat Edition: ..."Up" vs Back - It Works, But No One Knows Why...
Much is made of Android's back button - it can be confusing, it can work inconsistently across apps, and it's never really explained to new users out of the box. It seems especially odd when paired with another backwards navigation element - the "up" navigation button.In a perfect world, the back button takes you to the last view you saw, no matter where that is. The up button, meanwhile, should bring you up one level within the same app you're looking at. Try this: open the gallery from the camera app by swiping left. Then hit back. You're back at the camera, right? Okay, do the same thing but this time hit the gallery's up button. This should bring you to the gallery's home page. This is how it's supposed to work. The problem with this is that it's never really explained to new users. I have a simple solution for this - a quick first run explanation after the device is set up. Just like Android tells you how to add icons to your home screen, it could give a succinct explanation of back and up when the time comes. Easy. This would also be a good opportunity for Google to nudge developers in the right direction, as there are still plenty of instances where this paradigm isn't exactly followed in third-party apps....(read more at link above)
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