这是在不同视图中刷新绘图的正确方法吗？ [英] Is this the correct way of refreshing the drawing in a different view?

问题描述

• 在数据控制器头文件中导入CustomView.h


• 从那里创建一个IBoutlet到我的CustomView


• 将来自DataController的插座instoryboard连接到CustomView


• 使用它来调用视图的setNeedsDisplay方法。

• Import the CustomView.h in the data controller header file
• Create an IBoutlet to my CustomView from there
• Connect that outlet instoryboard from the DataController to the CustomView
• Use that to call the view's setNeedsDisplay method.

每次我将一个项目添加到核心数据上下文时，我希望它通知CustomView（它位于另一个标签中）重绘自己。

Every time I add an item to the core data context I would like it to notify the CustomView (which lives in another tab) to redraw itself.

I我正在使用ios5和故事板。

I am using ios5 and storyboards.

推荐答案

是的，DataController应该在需要刷新时通知视图因为数据已经改变，所以你的实现是合理的。

Yep, the DataController should be notifying the view when it needs to refresh because the data has changed, so your implementation is sound.

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