ios - 减少 dentry 仅显示十个结果

Question

这个类显示autoCompleteTextField，但是如果你在textField中写名称医生，那么在变量医生中显示太多结果如何减少 dentry 仅显示十个结果

import UIKit
class DoctorsDataSource: NSObject, MLPAutoCompleteTextFieldDataSource {

    var listDoctors=[String]()

    func autoCompleteTextField(textField: MLPAutoCompleteTextField!, possibleCompletionsForString string: String!, completionHandler handler: ([AnyObject]!) -> ()) {


        let appDelegate: AppDelegate = (UIApplication.sharedApplication().delegate as! AppDelegate)
        var requestParameters: [NSObject:AnyObject] = [NSObject: AnyObject]()

        requestParameters["name"] = textField.text
        requestParameters["country"]="1"
        requestParameters["weight"] = "iphone_search_doctors"
        requestParameters["today"] = "true"

        appDelegate.objectManager.getObjectsAtPath("/doctors", parameters: requestParameters, success: {
            (rkoperation: RKObjectRequestOperation!, rkmap: RKMappingResult!) -> Void in


            if let doctors = rkmap.array() as? [Doctor]  {
                for doctor: Doctor in doctors {

                    self.listDoctors.append("\(doctor.firstname) \(doctor.lastname)")
                }
            }
            handler(self.listDoctors)
            }, failure: {
                (rkoperation: RKObjectRequestOperation!, error: NSError!) -> Void in
                print("Load filed with error: @", error!)
                self.performSelectorOnMainThread(#selector(AppDelegate.showFetchError), withObject: nil, waitUntilDone: true)
            }
        )
    }
}

Answer 1

在

        for doctor: Doctor in doctors {
            self.listDoctors.append("\(doctor.firstname) \(doctor.lastname)")
        }

您正在添加 listDoctors 中的所有医生列表，如果您只想显示 10 个，您可以添加一个变量来计算您已添加的医生数量，然后在达到此数字时中断，a其示例如下代码:

    var doctorCount = 0
    for doctor: Doctor in doctors {

        if doctorCount++ == 10{
            break
        }

        self.listDoctors.append("\(doctor.firstname) \(doctor.lastname)")
    }