在iPhone应用程序中绘制带有某种颜色的图层 [英] draw a layer with some color in iPhone Application

问题描述

我想知道如何在窗口中绘制带有某些颜色[CGColorRef]的图层

当我尝试将SubLayer添加到我的窗口时，应用程序退出而没有显示任何异常。一些释放实例。尝试按照以下说明打开NSZombieEnabled：
http： //www.codza.com/how-to-debug-exc_bad_access-on-iphone

这将告诉您何时发送了错误消息。 / p>

此外，如果您想提出一个涉及特定代码的问题，则会得到更好的答复。尝试发布您的代码，也许我们可以为您进行基本调试。

I would like to know how to draw a layer with some color [CGColorRef] in a window

When i am trying to addSubLayer to my window , the application is exiting without showing any exception.

解决方案

If your app is just quitting with no debug error, there still could be a message sent to some deallocated instance. Try turning on NSZombieEnabled by following the instructions here: http://www.codza.com/how-to-debug-exc_bad_access-on-iphone

This will tell you when a bad message is sent.

Further, if you'd like to ask a question involving specific code, you'll get better responses. Try posting your code and maybe we can help you with basic debugging.

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