android - Mobile UI usability - should navigation/aciton bars go at the top or bottom? -

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I am preparing a new app for Android and am trying to determine whether my navigation / action bar I have installed most of the apps from which navigation / action bar is installed, it is located at the top of the screen (,,). With today's big screen it means that people with small hands have to use two hands to use it (for example to hold the phone in one hand and the other to touch the screen) If given below, navigation / action can be completed with one hand (for example, holding the phone with one hand and using your thumb easily to the bottom of your phone You can use the AOL Content are) a better user experience for me. This application will also include all the 'tasks' in all fields, including all 'back' buttons, menu buttons, etc. instead of split between content.

I think I see the biggest selling point for the top position that users are familiar with this paradigm from desktop computing whether it is the only reason to put it or a legitimate UI reason on a mobile platform Are you Can someone provide examples of popular Android apps with the navigation / action bars below? Is this a normal best practice for mobile UI for this scenario? Any blog / content on this topic will also be welcome.

The top honeycomb places it at the top, and you probably want to be compatible with the OS.

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