addobserver
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How to add observers to an NSManagedObject?
What is the preferred approach to registering observers on an NSManagedObject (since Core Data \"\'owns\' the lifecycle\" of managed objects)?[详细]
2023-02-25 15:31 分类：问答Add Observer to BOOL variable
Is it p开发者_Go百科ossible to add observers to simple variables such as BOOLs or NSIntegers and see when they change?[详细]
2023-02-24 00:43 分类：问答NSNotification, addObserver and removeObserver - removeObserver both in ViewDidUnload and dealloc?
I want to add a view controller as observer of a notification. When the selector method is called, I\'ll alert the user. I would that this alert ap开发者_JAVA技巧pears only when this view controller[详细]
2023-02-21 14:45 分类：问答冬瓜薏米猪骨汤的做法？
主料：猪骨500克冬瓜700克薏米100克眉豆50克辅料：甜玉米1根生姜1小块冬瓜薏米猪骨汤做法：1、猪骨飞水，然后冲洗掉血沫；[详细]
2022-12-28 11:41 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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