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您能否告诉我是否有任何库/API 来检测用户是否使用手势在屏幕上绘制了一个矩形?
谢谢你。
用于android.gesture.Gesture存储手势。并android.gesture.GestureOverlayView检测用户是否绘制需要的手势。这是一个很好的教程
android.gesture.Gesture
android.gesture.GestureOverlayView