除非我注释掉下面的函数,否则我的AchievementViewController
不会从内存中释放
NetworkConnection.achievementList(for: -1) { [weak self] response in
guard let sections = response.object as? [AchievementListSection] else {
return print("Network failure")
}
self?.sections = sections
self?.configureCollectionView()
}
这个函数的定义如下,目前我们只使用延迟的异步调用来发送存根响应。
static func achievementList(for identifier: Int64, responseHandler: RequestResponseClosure?) {
let stubResponse = ResponseObject(object: AchievementListSection.exampleList as NSArray, code: .success)
let randomDelayMilliseconds = Int(arc4random_uniform(1000))
DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(randomDelayMilliseconds)) {
responseHandler?(stubResponse)
}
}
自我究竟在哪里被保留下来,以在这里创造一个循环?它作为weak
引用传递给NetworkConnection闭包,反过来,当这个闭包传递给DispatchQueue
时,我希望它在延迟过去后释放。
尝试注释此行
self?.configureCollectionView()
mb这是个问题,因为[weak self]
足以修复这个闭包中的保留