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The back button is very inconsistent on Android. For instance, within Facebook, anytime I hit back I go back to whatever I was doing in Facebook, no matter how long ago I did it! Facebook seems to keep a global history of everything I've every done in that app that persists for days and days. In contrast, most apps after they are auto-closed by the system, lose their history. One could argue that Facebook is maybe "more correct" here, but for the most part, "back within this current session" is what I want, which leads into the next point. If I tap a URL within some app that opens up the Android web browser, and I then hit the back button, I am brought back to my app. So I sort of expect this behavior, but again, different apps act very differently here. This is where Facebook's usage is really strange, I tap on a FB notification, go into the FB app, hit back, and rather than be brought back to whatever I was doing before, I am navigated to some conversation I last had a week ago. (I obviously don't use the FB app that often!) There are plenty of other examples of inconsistent back button usage even throughout core OS experiences. What back is going to do when I am in the Text Messaging app is solely dependent upon how I entered the app. (And then there is the entire thing about browser sessions from clicked on URLs within apps being entirely different than browser sessions from when I manually open the browser) |