iPhoneを振る動作を検出するコードのメモ - 24/7 twenty-four sevenios - How do I detect when someone shakes an iPhone? - Stack Overflow // Ensures the shake is strong enough on at least two axes before declaring it a shake. // "Strong enough" means "greater than a client-supplied threshold" in G's. static BOOL L0AccelerationIsShaking(UIAcceleration* last, UIAcceleration* current, double threshold) { double deltaX = fabs(last.x - current.x), deltaY = fabs(last.y
sonson@Picture&Software - [iPhone SDK] Loading HUDの実装サンプル
