Ios 如何等待MPMediaLibrary请求授权响应
Im检查用户在提示访问媒体库时给出的响应。我想知道如何在继续之前等待用户的响应Ios 如何等待MPMediaLibrary请求授权响应,ios,swift,mpmedialibrary,Ios,Swift,Mpmedialibrary,Im检查用户在提示访问媒体库时给出的响应。我想知道如何在继续之前等待用户的响应 static func getAuthrization(completionHandler:@escaping (Bool) -> Void) { var authStatus:Bool=false; let status = MPMediaLibrary.authorizationStatus() if(status == MPMediaLibraryAuth
static func getAuthrization(completionHandler:@escaping (Bool) -> Void) {
var authStatus:Bool=false;
let status = MPMediaLibrary.authorizationStatus()
if(status == MPMediaLibraryAuthorizationStatus.authorized){
authStatus = true
}else{
MPMediaLibrary.requestAuthorization() { status in
if status == .authorized {
authStatus = true
}else{
print("Auth not granted")
authStatus = false
}
}
}
completionHandler(authStatus)
}
这是我用来获取用户身份验证的函数
func setSongs(){
print("called from set songs")
songQuery.getAuthrization { (status) in
print(status)
}
}
这就是我用来调用这个函数的函数
现在,该函数在用户从系统权限提示符响应之前执行并完成。我想要的是让代码在执行之前等待js或dart,然后得到响应
感谢您的帮助请致电
completionHandler
,如下所示:
static func getAuthrization(completionHandler:@escaping (Bool) -> Void) {
if MPMediaLibrary.authorizationStatus() == .authorized {
completionHandler(true)
} else {
MPMediaLibrary.requestAuthorization() { completionHandler($0 == .authorized) }
}
}
这不是因为您在
MPMediaLibrary.requestAuthorization()之外调用了completionHandler(authStatus)
completion handler?当我执行该函数并完成时,它根本不会返回响应@Olympilutreah该死的,工作起来很有魅力谢谢会在时间限制后接受答案谢谢你这么快的回答