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在UIKit中,通常使用URLSession來進行網(wǎng)絡(luò)請求。URLSession提供了多種方法來管理和取消網(wǎng)絡(luò)請求:
let task = URLSession.shared.dataTask(with: url) { data, response, error in
// Handle response
}
task.cancel()
URLSession.shared.invalidateAndCancel()
let task = URLSession.shared.dataTask(with: url) { data, response, error in
// Handle response
}
task.cancel()
let group = DispatchGroup()
group.enter()
let task1 = URLSession.shared.dataTask(with: url1) { data, response, error in
// Handle response
group.leave()
}
task1.resume()
group.enter()
let task2 = URLSession.shared.dataTask(with: url2) { data, response, error in
// Handle response
group.leave()
}
task2.resume()
// Cancel all tasks in the group
group.notify(queue: .main) {
task1.cancel()
task2.cancel()
}
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