小编Ale*_*mov的帖子

我创建了一个csv文件并尝试通过电子邮件发送它.显示发送邮件的窗口,但不填充电子邮件正文,也没有附加文件.应用程序挂起此屏幕:

按钮"取消"不起作用.在控制台中出现几秒钟后:

viewServiceDidTerminateWithError: Error Domain=_UIViewServiceInterfaceErrorDomain Code=3 "The operation couldn’t be completed. (_UIViewServiceInterfaceErrorDomain error 3.)" UserInfo=0x7f8409f29b50 {Message=Service Connection Interrupted}

<MFMailComposeRemoteViewController: 0x7f8409c89470> timed out waiting for fence barrier from com.apple.MailCompositionService

有我的代码:

func actionSheet(actionSheet: UIActionSheet!, clickedButtonAtIndex buttonIndex: Int) {
    if buttonIndex == 0 {
        println("Export!")

        var csvString = NSMutableString()
        csvString.appendString("Date;Time;Systolic;Diastolic;Pulse")

        for tempValue in results {     //result define outside this function

            var tempDateTime = NSDate()
            tempDateTime = tempValue.datePress
            var dateFormatter = NSDateFormatter()
            dateFormatter.dateFormat = "dd-MM-yyyy"
            var tempDate = dateFormatter.stringFromDate(tempDateTime)
            dateFormatter.dateFormat = "HH:mm:ss"
            var tempTime …

这是示例代码:

import UIKit
import MessageUI

class ViewController: UIViewController, MFMailComposeViewControllerDelegate {

    @IBAction func showEmail(sender : AnyObject) {
        var emailTitle = "Test Email"
        var messageBody = "This is a test email body"
        var toRecipents = ["a.nakhimov@gmail.com"]
        var mc: MFMailComposeViewController = MFMailComposeViewController()
        mc.mailComposeDelegate = self
        mc.setSubject(emailTitle)
        mc.setMessageBody(messageBody, isHTML: false)
        mc.setToRecipients(toRecipents)

        self.presentViewController(mc, animated: true, completion: nil)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    func mailComposeController(controller:MFMailComposeViewController, didFinishWithResult result:MFMailComposeResult, error:NSError) {
        switch result …

在我的应用程序中,我在数组的基础上填写表.该表使用自定义UITableViewCell.一切正常,桌子就满了.然后我将搜索显示控制器添加到我的UITableViewController,没有写代码来处理搜索,只需添加控制器.当您运行该应用程序时,该表仍然填充.但如果我尝试单击搜索栏,我会收到错误:

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'unable to dequeue a cell with identifier CitiesListCell - must register a nib or a class for the identifier or connect a prototype cell in a storyboard'

我尝试在UITableViewController行添加到我的viewDidLoad函数:

self.tableView.registerClass(MyCell.classForCoder(), forCellReuseIdentifier: kCellIdentifier)

启动应用程序并立即收到错误:

fatal error: unexpectedly found nil while unwrapping an Optional value

排队 cell.cellMyCity.text = cellText

我究竟做错了什么？

这是我的Custom UITableViewCell类:

import UIKit

class MyCell: UITableViewCell {

@IBOutlet var cellMyImage: UIImageView
@IBOutlet var cellMyCity: UILabel
@IBOutlet var cellMyCountry: UILabel
@IBOutlet var cellMyTemp: UILabel …

如何在Apple的新语言中实现它:

Objective-C代码:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
        for (UIView *view in self.view.subviews)
        [view resignFirstResponder];
}

我试过这样做.但键盘不会消失:

SWIFT代码:

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    super.touchesBegan(touches, withEvent: event)
    self.view.resignFirstResponder()
}

我有一个功能:

func parseJSON3(inputData: NSData) -> NSArray {
    var tempDict: (id:Int, ccomments:Int, post_date:String, post_title:String, url:String) = (id: 0, ccomments: 0, post_date: "null", post_title: "null", url: "null")
    var resultArray: (id:Int, ccomments:Int, post_date:String, post_title:String, url:String)[] = []
    var error: NSError?
    var jsonDictionary: NSDictionary = NSJSONSerialization.JSONObjectWithData(inputData, options: NSJSONReadingOptions.MutableContainers, error: &error) as NSDictionary
    var firstArray = jsonDictionary.objectForKey("locations") as NSArray
    for dict in firstArray {
        tempDict.id = dict.valueForKey("ID") as Int
        tempDict.ccomments = dict.valueForKey("ccomments") as Int
        tempDict.post_date = dict.valueForKey("post_date") as String
        tempDict.post_title = dict.valueForKey("post_title") as String
        tempDict.url …

我需要建议如何继续.

如何稍微调暗主视图并显示一些忙碌指示,在某些动作的持续时间内,然后删除调光？

用Swift语言.

谢谢!

UPD:在Objective-C中,我之前使用过这样的东西:

UIView *dimView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
dimView.backgroundColor = [UIColor blackColor];
dimView.alpha = 0.5f;
dimView.tag = 1111;
dimView.userInteractionEnabled = NO;
[self.view addSubview:dimView];

我们如何在Swift中执行此代码？

对不起任何代码行的问题很抱歉.如果可能的话,我需要建议如何继续.

用Swift语言.

让我们假设有一个带有两个控制器的应用程序 - UITableViewController以嵌入式NavigationController为主.在表中选择一行时,将打开UIViewController,其中显示有关所选值的详细信息.

是否可以这样做？应用程序启动时,以编程方式模拟表中第一行的选择,并立即显示UIViewController有关所选值的详细信息.而从这个控制器可以返回到UITableViewController通过NavigationController.

我再一次道歉并提前感谢你!

这是示例代码:

import UIKit
import MessageUI

class ViewController: UIViewController, MFMailComposeViewControllerDelegate {

@IBAction func showEmail(sender : AnyObject) {
    var emailTitle = "Test Email"
    var messageBody = "This is a test email body"
    var toRecipents = ["a.nakhimov@gmail.com"]
    var mc: MFMailComposeViewController = MFMailComposeViewController()
    mc.mailComposeDelegate = self
    mc.setSubject(emailTitle)
    mc.setMessageBody(messageBody, isHTML: false)
    mc.setToRecipients(toRecipents)

    self.presentViewController(mc, animated: true, completion: nil)
}

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of …

这是带UITableViewController和的示例代码CoreData.主文件MainTableViewController.swift:

import UIKit
import CoreData

class MainTableViewController: UITableViewController {

var results:AddrBook[]=[]

init(style: UITableViewStyle) {
    super.init(style: style)
}

init(coder aDecoder: NSCoder!) {
    super.init(coder: aDecoder)
}

override func viewDidLoad() {
    super.viewDidLoad()

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

override func viewDidAppear(animated: Bool) {
    let request = NSFetchRequest(entityName: "Person")
    request.returnsObjectsAsFaults = false
    let appDelegate:AppDelegate = (UIApplication.sharedApplication().delegate as AppDelegate)
    let context:NSManagedObjectContext = appDelegate.managedObjectContext
    results  = context.executeFetchRequest(request, error: nil) as AddrBook[]
    self.tableView.reloadData()
}

override func numberOfSectionsInTableView(tableView: UITableView?) -> Int …

我有一个样本plist文件,favCities.plist.这是我的示例代码:

 override func viewDidLoad() {
    super.viewDidLoad()


    let path = NSBundle.mainBundle().pathForResource("favCities", ofType: "plist")
    var plistArray = NSArray(contentsOfFile: path) as [Dictionary<String, String>]

    var addDic: Dictionary = ["ZMV": "TEST", "Name": "TEST", "Country": "TEST"]
    plistArray += addDic
    (plistArray as NSArray).writeToFile(path, atomically: true)

    var plistArray2 = NSArray(contentsOfFile: path)

    for tempDict1 in plistArray2 {
        var tempDict2: NSDictionary = tempDict1 as NSDictionary
        var cityName: String = tempDict2.valueForKey("Name") as String
        var cityZMV: String = tempDict2.valueForKey("ZMV") as String
        var cityCountry: String = tempDict2.valueForKey("Country") as String
        println("City: \(cityName), ZMV: \(cityZMV), …