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这是我用来填充我的collectionView单元格的NSObject类文件。我从firebase提取数据并使用它填充collectionViewCell。 Xcode给出了这个错误“在参数'字典'在调用失踪参数”我尽我所能,但我无法找出缺少的东西。什么导致这个错误,我该如何解决它?在调用中缺少参数'字典'的参数
class BusinessCategory: NSObject {
var ref: FIRDatabaseReference!
var name: String?
var logo: String?
var featurebusiness: [SampleBusinesses]?
var type: String?
init(dictionary: [String: Any]) {
self.name = dictionary["BusinessName"] as? String ?? ""
self.logo = dictionary["logo"] as? String ?? ""
}
static func sampleBusinessCategories() -> [BusinessCategory] {
var FinancialInstitutionCatergory = BusinessCategory()
FinancialInstitutionCatergory.name = "Financial Institutions"
var featurebusiness = [SampleBusinesses]()
//logic
FIRDatabase.database().reference().child("BusinessCategories/Banks").observeSingleEvent(of: .childAdded, with: { (snapshot) in
if let dictionary = snapshot.value as? [String: AnyObject] {
let financeApp = SampleBusinesses()
financeApp.setValuesForKeys(dictionary)
financeApp.name = dictionary["BusinessName"] as? String
featurebusiness.append(financeApp)
}
FinancialInstitutionCatergory.featurebusiness = featurebusiness
print(snapshot)
}, withCancel: nil)
return [FinancialInstitutionCatergory]
}
}
谢谢,你所说的那一行是错误的那一行。我添加了建议的更改,但它显示此错误“无法将类型'[String:Any] .Type'(又名'字典 .Type')的值转换为期望的参数类型'[String:Any]'” –
Ola
取出'< >'......那些不需要;它应该是'dictionary:[“foo”:“bar”]' –
那些不在代码中的只是在注释中。我把var变成了你发布的 – Ola