Is this the correct way of refreshing the drawing in a different view?

问题

• 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.

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 am using ios5 and storyboards.

回答1:

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

来源：https://stackoverflow.com/questions/8695497/is-this-the-correct-way-of-refreshing-the-drawing-in-a-different-view