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問題很簡單。我有一個在Objective-C中正常工作的代碼，但我需要相同的代碼才能在swift中工作。 。下面的代碼，我上傳的文檔文件夾命名爲「photo.png」我的谷歌雲端硬盤文件上的iPhone（我刪除了與設置的文檔目錄文件夾，以節省一些空間的部分） 這裏是原代碼：在將Objective-C代碼轉換爲swift 3.0.2後，出現錯誤Google Drive Rest API
-(void)uploadPhoto{
metadata.parents = ids;
GTLRUploadParameters *uploadParameters;
uploadParameters = [GTLRUploadParameters uploadParametersWithData:photoData MIMEType:@"image/png"];
uploadParameters.shouldUploadWithSingleRequest = TRUE;
GTLRDriveQuery_FilesCreate *query = [GTLRDriveQuery_FilesCreate queryWithObject:metadata
uploadParameters:uploadParameters];
query.fields = @"id";
[self.service executeQuery:query completionHandler:^(GTLRServiceTicket *ticket,
GTLRDrive_File *file,
NSError *error) {
if (error == nil) {
NSLog(@"File photo ID %@", file.identifier);
} else {
NSLog(@"An error occurred: %@", error);
}
}];
}
我大部分都是從Google開發者那裏得到的。目標 - 它的工作正常！ 以下是在迅速得到：
func uploadPhotos()
{
var ids : NSArray!
metadata.parents = ident as! [String]?
var uploadParameters = GTLRUploadParameters(data:photoData! as Data,mimeType:"image/png")
uploadParameters.shouldUploadWithSingleRequest = true
var query :GTLRDriveQuery_FilesCreate
query = GTLRDriveQuery_FilesCreate.query(withObject: metadata, uploadParameters: uploadParameters)
query.fields = "id"
let vc:DriveListTableViewController
self.service.executeQuery(query,completionHandler :{(ticket: GTLRServiceTicket!,
file: GTLRDrive_File!,
error: Error!)-> Void in
if error == nil {
print("File photo ID \(file.identifier)")
}
else {
print("An error occurred: \(error)")
}
})
}
我的錯誤是在該行與self.service.exequteQuery
swift:314:59: Cannot convert value of type '(GTLRServiceTicket!, GTLRDrive_File!, Error!) -> Void' to expected argument type 'GTLRServiceCompletionHandler?'
請幫我解決這個錯誤！已嘗試不同的變體！