我正在编写一小段 Swift 代码,用于通过基于网络的 API 提取数据。现在我很接近,但是当我在 getUserInfo() 预期数据中打印数据时,我认为我缺少完成处理程序方面,但在该函数之外,出现初始化的默认数据。该函数是这样调用的:
print("Provided Username is: \(workingData.user)")
getUserInfo()
print("Returned String Data is: \(workingData.responseDataString)")
和实际功能:
func getUserInfo() {
Alamofire.request(workingjss.jssURL + devAPIMatchPath + workingData.user, method: .get)
.authenticate(user: workingjss.jssUsername, password: workingjss.jssPassword).responseString { response in
if (response.result.isSuccess) {
print("In Function Data: \(response.result.value!)"
workingData.responseDataString = response.result.value!
}
}
}
运行代码的输出是:
Provided Username is: MYUSER
Returned String Data is: Nothing Here Yet
In Function Data: {"Cleaned JSON Data here"}
完成处理程序会帮助解决问题吗?我对使用 Alamofire 很陌生,如果这很简单,我很抱歉。谢谢!
最佳答案
尝试使用完成处理程序:
func getUserInfo(completion: @escaping (String) -> Void) {
Alamofire.request(workingjss.jssURL + devAPIMatchPath + workingData.user, method: .get)
.authenticate(user: workingjss.jssUsername, password: workingjss.jssPassword).responseString { response in
if (response.result.isSuccess) {
print("In Function Data: \(response.result.value!)"
completion(response.result.value!)
}
}
}
然后这样调用它:
getUserInfo() { response in
// Do your stuff here
workingData.responseDataString = response
print("Returned String Data is: \(workingData.responseDataString)")
}
关于swift - 向 Alamofire 添加完成处理程序,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42756215/