iphone：Paint/Draw with All touch？

Question

我怎樣才能用4個手指同時塗抹。我需要用戶界面進行互動並響應所有觸動。

我已經看到了大部分的應用程序，比如GLPaint &更多的繪畫應用程序，它們只響應一次觸摸。

任何人都有想法，我怎麼能畫所有觸摸？

Answer 1

我認爲你可以使用UIPanGestureRecognizer

UIPanGestureRecognizer is a concrete subclass of UIGestureRecognizer that looks for panning (dragging) gestures.The user must be pressing one or more fingers on a view while they pan it. 

用途：

multipleTouchEnabled = YES; 
delaysTouchesBegan = YES;