UIScrollView 总是回弹 [英] UIScrollView always snaps back

问题描述

我将一堆对象放入 UIScrollView 并且我没有问题:当我尝试滚动"到一些屏幕外对象时，只要我在拖动它后按住手指，它们就会出现，但是当我让你，UIScrollView 弹回到原来的位置.

I put a bunch of objects into a UIScrollView and I no have a problem: When I try to "scroll" to some off-screen objects, they appear so long as I am holding my finger down after dragging it, but when I let you, the UIScrollView snaps back to the original position.

有没有办法防止这种情况发生?发生这种情况时不会出现屏幕外的灰色区域，顺便说一句.

Is there a way to prevent this? No off-screen gray area is appaering when this happens, BTW.

谢谢.

推荐答案

你必须设置滚动视图的 contentSize 包含您的对象，因此它知道可滚动区域有多大是 - 在到达边缘并弹回之前可以自由滚动多远.

You have to set the scroll view's contentSize to include your objects, so it knows how large the scrollable area is — how far to scroll freely before it hits the edge and bounces back.

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