小编Mc.*_*ver的帖子

我为iOS创建了一个自定义日历,我正在尝试使用徽章编号来显示当天的编号,但是在一天过后数字没有变化,我的意思是他们应该更新热闹这里是我的代码:我需要类似天气实时应用程序的东西,此应用程序不发送任何推送通知!

    int a = [DateComponents showDay];
    [UIApplication sharedApplication].applicationIconBadgeNumber = a ;

我有一个带有settings.bundle的iOS应用程序,它可以处理我的应用程序的各种设置Switch toggle.我在root.plist文件中设置了默认值(使用DefaultValue属性),YES但是只要应用程序在设备或iOS模拟器上启动,所有值都会出现NO.它只在第一次发布时运作良好.

我正在使用此代码检索默认值(我在这里做错了吗？):

NSUserDefaults *localeDefaults = [NSUserDefaults standardUserDefaults];
BOOL ENWORDS = [localeDefaults boolForKey:@"localetime"];

我正在按照本教程尝试将代码从Swift 2.0转换为3.0.但是当我启动应用程序时,该应用程序无法运行!我的意思是,没有任何反应 这是我的代码:

视图控制器:

class ViewController: UIViewController ,BarcodeDelegate {

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

        let barcodeViewController: BarcodeViewController = segue.destination as! BarcodeViewController
        barcodeViewController.delegate = self

    }



    func barcodeReaded(barcode: String) {
        codeTextView.text = barcode
        print(barcode)
    }

}

BarcodeVC:

import AVFoundation


protocol BarcodeDelegate {

    func barcodeReaded(barcode: String)
}

class BarcodeViewController: UIViewController,AVCaptureMetadataOutputObjectsDelegate {

    var delegate: BarcodeDelegate?
    var captureSession: AVCaptureSession!
    var code: String?


    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        print("works")

        self.captureSession = …

我试图在地图上显示三件事:GPS(当前位置),Marker 1,Marker 2,但我不确定我做得对不对!这是我的代码:

 self.startMarker.position = CLLocationCoordinate2D(latitude: self.startLatitude, longitude: self.startLongitude)
 self.startMarker.icon = #imageLiteral(resourceName: "Pin Start")
 self.startMarker.map = self.mapView


 self.endMarker.position = CLLocationCoordinate2D(latitude: self.endLatitude, longitude: self.endLongitude)
 self.endMarker.icon = #imageLiteral(resourceName: "Pin End")
 self.endMarker.map = self.mapView


 let southWest = CLLocationCoordinate2DMake(self.startLatitude,self.startLongitude)
 let northEast = CLLocationCoordinate2DMake(self.endLatitude,self.endLongitude)
 let bounds = GMSCoordinateBounds(coordinate: northEast, coordinate: southWest)
 let camera = self.mapView.camera(for: bounds, insets:.zero)
 self.mapView.camera = camera!

更多代码:

  // MARK: - Google Map

private func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
            if status == CLAuthorizationStatus.authorizedWhenInUse {
                mapView.isMyLocationEnabled = true
            }
          }
func …

我有xcode 4的疯狂问题,当我想要构建并运行我的应用程序如果模拟器打开xcode崩溃!!!!! 我从来没有遇到过这个问题,我取消了xcode 4.0然后安装新版本4.0.2,但仍有这个问题!

    ASSERTION FAILURE in /SourceCache/IDEKit/IDEKit-303/Framework/Classes/Workspace/IDEWorkspaceTabController.m:2327
Details:  Assertion failed: [suppressionTargetValue isEqualToString:_kUserDefaults_IDESuppressStopExecutionWarningTargetValue_Add]
Object:   <IDEWorkspaceTabController: 0x201464400>
Method:   -_showWarningForBuild:forOtherExecution:trackersToStop:taskActionBlock:
Thread:   <NSThread: 0x200020700>{name = (null), num = 1}
Hints:   None
Backtrace:
  0  0x0000000100949773 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:messageFormat:arguments:] (in IDEKit)
  1  0x000000010006d394 _DVTAssertionFailureHandler (in DVTFoundation)
  2  0x0000000100931e02 -[IDEWorkspaceTabController _showWarningForBuild:forOtherExecution:trackersToStop:taskActionBlock:] (in IDEKit)
  3  0x00000001008e830b -[IDEWorkspaceTabController _performContextTask:command:commandName:] (in IDEKit)
  4  0x00007fff88486e9a -[NSApplication sendAction:to:from:] (in AppKit)
  5  0x00000001001cf63c -[DVTApplication sendAction:to:from:] (in DVTKit)
  6  0x000000010085b656 -[IDEApplication sendAction:to:from:] (in IDEKit)
  7  0x00007fff884ab41e -[NSMenuItem _corePerformAction] (in AppKit)
  8  0x00007fff884ab188 -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] …

如你所知,iOS 5中的Mail应用程序有一个富文本编辑器,是否有任何可能的方法将此功能用于常规UITextView？

如何在"设置"包中的组类型下留言？这样的事情:

我试图AVPlayer通过UISlider搜索来实现流畅的视频清理,似乎Apple有技术问答并解释了如何实现这一点,但我的问题是如何使用此方法并使用UISlider更改播放器当前时间: stopPlayingAndSeekSmoothlyToTime(newChaseTime:CMTime)

这是我的代码:

//Play Intro Movie
let videoURL = Bundle.main.url(forResource: "intro", withExtension: "mp4")
player = AVPlayer(url:videoURL!)
let playerLayer = AVPlayerLayer(player: player)
playerLayer.frame = self.view.frame
view.layer.addSublayer(playerLayer)
//videoPlayer.play()


view.addSubview(slider)
slider.maximumValue = 0
slider.maximumValue = Float(CMTimeGetSeconds((player.currentItem?.asset.duration)!))

这是Apple示例代码:

func stopPlayingAndSeekSmoothlyToTime(newChaseTime:CMTime)
    {
        player.pause()

        if CMTimeCompare(newChaseTime, chaseTime) != 0
        {
            chaseTime = newChaseTime;

            if !isSeekInProgress
            {
                trySeekToChaseTime()
            }
        }
    }




    func trySeekToChaseTime()
    {
        if playerCurrentItemStatus == .unknown
        {
            // wait until item becomes ready (KVO player.currentItem.status)
        }
        else if playerCurrentItemStatus …

我想在视频上添加图片.一切都很好,除了一件事,图像扭曲:

这是代码:

//Capture the image
UIGraphicsBeginImageContextWithOptions(self.captureView.bounds.size, false, UIScreen.main.scale)
self.captureView.layer.render(in: UIGraphicsGetCurrentContext()!)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()

let watermarkVideo = WatermakVideo()

//video file
let videoFile = Bundle.main.path(forResource: "videoTrim", ofType: "mp4")
let videoURL = URL(fileURLWithPath: videoFile!)

let imageFrame = captureView.frame
watermarkVideo.createWatermark(image, frame: imageFrame, video: videoURL)

这是课程WatermakVideo:https: //www.dropbox.com/s/0d6i7ap9qu4klp5/WatermakVideo.zip

如果你能帮助我解决这个问题,我将不胜感激.

我在iPad上更改应用程序图标时遇到问题.一切都在iPhone上工作正常,但在iPad上我得到这个错误:

[default]无法将preferredIconName设置为AI-Gorgosaurus for ...:0> error:Error Domain = NSCocoaErrorDomain Code = 4"该文件不存在." UserInfo = {NSUnderlyingError = 0x600000248a30 {错误域= LSApplicationWorkspaceErrorDomain Code = -105"iconName在CFBundleAlternateIcons条目中找不到"UserInfo = {NSLocalizedDescription = iconName在CFBundleAlternateIcons条目中找不到}}}应用程序图标因文件不存在而失败.

我搜索广告发现,我需要补充~ipad的CFBundleIconFiles,但仍然得到同样的错误!

这是代码:

  func changeIcon(to name: String?) {
        //Check if the app supports alternating icons
        guard UIApplication.shared.supportsAlternateIcons else {
            return;
        }

        //Change the icon to a specific image with given name
        UIApplication.shared.setAlternateIconName(name) { (error) in
            //After app icon changed, print our error or success message
            if let error = error {
                print("App …