2016-01-13 57 views
6

我使用BrightFutures,当我运行以下代码时,在geoCoder completionHandler完成之前调用sequence().onCompletesequence().onSuccess。你能帮我解决这个问题吗?Promise.onSuccess立即致电

self.uploadContentSequence = [Future<Future<Void, NoError>, NoError>](); 

for post in posts { 
    self.uploadContentSequence.append(future(self.preparePostUpload(post))) 
} 

self.uploadContentSequence.sequence().onComplete { (_) -> Void in 
    print("onComplete") 
}.onSuccess { (_) -> Void in 
    print("onSuccess") 
}.onFailure { (_) -> Void in 
    print("onFailure") 
} 

[...] 

func preparePostUpload(post: Post) -> Future<Void, NoError> { 
    let promise = Promise<Void, NoError>() 

    [...] 

    let postLocation = CLLocation(latitude: Double(post.lat!), longitude: Double(post.lng!)) 
    let geocoder = CLGeocoder(); 
    let countryCode = NSLocale.currentLocale().objectForKey(NSLocaleCountryCode) as! String 
    post.country = countryCode 
    geocoder.reverseGeocodeLocation(postLocation, completionHandler: { (placemarks, locError) -> Void in 
     [...] 
     promise.success() 
    }); 

    return promise.future 
} 

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