核心图形绘制和删除触摸 [英] Core Graphics Line drawing and deleting on touch

问题描述

我在写一个iPhone应用程序有点像在appstore上拿起stick应用程序。我已经做了绘制多行，并使用CoreGraphics显示它。但现在我被困在如何删除线当用户点击它。我在Google上搜索了很多，但没有发现任何相关的。

I am writing an iPhone application somewhat like pick up sticks app on appstore. I have already done with drawing multiple lines and displaying it using CoreGraphics. But now I am stuck with how to delete the line when the user taps on it. I have searched on Google a lot but didn't find anything related.

我已经在别的地方看到你的这个帖子，这真的帮助了我。但问题是
，如果我有一个棒，然后另一根棍子在它的顶部。
当我点击下面的棒，它不应该被删除，如果我点击上面的，应该会被删除，如果没有棍子上面它。如何实现这个东西..我需要存储的路径，即我的行是UIBeizerpath在一个列表，数组，字典任何，请帮助我这个东西。我没有找到任何东西。

I have seen this post of yours at some other place and this has really helped me out. but the problem is that if i have a stick and then another stick on top of it. when i click on the stick which is below, it should not get deleted and if i tap on the above on, it should get deleted if there is no stick above it. How to achieve this thing.. A lso i need to store the paths i.e. my lines which is UIBeizerpath in a list, array, dictionary whatever, please help me with this thing also. I'm not finding anything for it.

推荐答案

如果你在UIView中使用Core Graphics，删除任何内容。你将能够完全重新绘制视图，但也许少一个棍子。

If you are using Core Graphics in a UIView, you won't have to delete anything. You will instead have be able to completely redraw the view, but perhaps with one less stick.

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