How to detect a L-shaped gesture in android?

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http://stackoverflow.com – I'm currently building a file manager that will use gestures for its action, that's why I need to have this kind of gesture. I've already tried searching for some similar topics here but I just can't find something that will give me some idea on doing it. All I found are about SimpleGestureListener (which I already used) and that GestureOverlayView (which I think is not good for my app). I thought I could apply the idea from the onFling Method, but I realized that it is not applicable for the L-shaped gesture that I'm aiming... To make it simple, here's the thing that I want to know: So, wh (HowTos)