小编use*_*888的帖子

我在swift中使用AVFoundation来拍照,但我无法将任何func代码行从Objective c转换为Swift.我的功能代码是:

 - (void) capImage { //method to capture image from AVCaptureSession video feed
AVCaptureConnection *videoConnection = nil;
for (AVCaptureConnection *connection in stillImageOutput.connections) {

    for (AVCaptureInputPort *port in [connection inputPorts]) {

        if ([[port mediaType] isEqual:AVMediaTypeVideo] ) {
            videoConnection = connection;
            break;
        }
    }

    if (videoConnection) {
        break;
    }
}

NSLog(@"about to request a capture from: %@", stillImageOutput);
[stillImageOutput captureStillImageAsynchronouslyFromConnection:videoConnection completionHandler: ^(CMSampleBufferRef imageSampleBuffer, NSError *error) {

    if (imageSampleBuffer != NULL) {
        NSData *imageData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageSampleBuffer];
        [self processImage:[UIImage imageWithData:imageData]];
    }
}]; …

我正在尝试在我的Swift应用程序的viewController中添加图像背景,但colorWithPatternImage不可用..还有其他形式或者必须将其添加到imageView中吗？

我正在尝试使用此代码:

 let imageName = "image.png"
    self.view.backgroundColor = UIColor.colorWithPatternImage(UIImage(named:imageName))

谢谢!

我需要将Objective-C转换为Swift以从通讯簿中获取联系人的图像.但是,我得到一个错误与投从CFData到NSData,我不知道如何使这项工作.我该怎么做才能使这项工作正常进行？

在Objective-C中:

ABRecordID contactID = ABRecordGetRecordID(contactRef);
ABAddressBookRef addressBook = ABAddressBookCreate();

ABRecordRef origContactRef = ABAddressBookGetPersonWithRecordID(addressBook, contactID);

if (ABPersonHasImageData(origContactRef)) {
    NSData *imgData = (NSData*)ABPersonCopyImageDataWithFormat(origContactRef, kABPersonImageFormatOriginalSize);
    img = [UIImage imageWithData: imgData]; 

    [imgData release];
}

CFRelease(addressBook);

return img;

在Swift中:

var image: UIImage!

if ABPersonHasImageData(person) {
    var imgData = (ABPersonCopyImageDataWithFormat(person, kABPersonImageFormatOriginalSize))
    image = UIImage.imageWithData(imgData) //Here get the error 
}

如何通过fullcalendar bootstrap的事件id获取和事件？

我有事件ID,我希望从中获取事件.我正在尝试这个:

var evento = $("#calendar").fullCalendar( 'clientEvents')[response.idEvent];

response.idEvent是id事件,这是正确的(例如我的mysql数据库中的'32'),我知道这是因为我打印这个并且是正确的,但我不知道如何从这个获取事件...

怎么能得到这个？

谢谢!

我在swift中用AVFoundation录制视频,但是我没有看到file.mp4.我不知道我是否正在录音而且我保存不好或者我没有录音..因为我可以显示会话预览,所有组件都能正常运行..我的代码是:

 import UIKit
 import AVFoundation

 class ViewController: UIViewController, AVCaptureFileOutputRecordingDelegate {
 var delegate : AVCaptureFileOutputRecordingDelegate?
 @IBOutlet var imageView : UIImageView
 @IBOutlet var imagePreview : UIView

var session : AVCaptureSession!
var fileOutput : AVCaptureMovieFileOutput!
var previewLayer : AVCaptureVideoPreviewLayer!

func initCamera() -> Bool {
 var cameraBack : AVCaptureDevice?
    var videoIn : AVCaptureDeviceInput

    var devices : NSArray = AVCaptureDevice.devices()
    for device: AnyObject in devices{
        if device.position == AVCaptureDevicePosition.Back{
            cameraBack = device as? AVCaptureDevice
        }
    }
 delegate=self
  var error : NSErrorPointer!
    var deviceInput : AVCaptureInput …

我想在UIImageView中使用gif,但我不能.我的代码是:

- (void)viewDidLoad {
    [super viewDidLoad];

    NSURL *url = [[NSBundle mainBundle] URLForResource:@"test" withExtension:@"gif"];
    UIImage *testImage = [UIImage animatedImageWithAnimatedGIFData:[NSData dataWithContentsOfURL:url]];
    self.dataImageView.animationImages = testImage.images;
    self.dataImageView.animationDuration = testImage.duration;
    self.dataImageView.animationRepeatCount = 1;
    self.dataImageView.image = testImage.images.lastObject;
    [self.dataImageView startAnimating];
}

迅速:

var url : NSURL = NSBundle.mainBundle().URLForResource("MAES", withExtension: "gif")

在目标CI中有animatedImageWithAnimatedGIFData,但在swift中我不知道如何调用此或如果不存在..

谢谢!

UITablaView我的Objective C应用程序中有一个.我有自定义单元格标签和UIImageView.我想禁用部分行,以便didSelectRowAtIndexPath在用户单击此行的部分时禁用.

我要这个:

可能吗？

我需要保存在NSUserDefaults数组或其他数据结构中以使用以下格式保存对象:

name = "myName", lastName = "myLastName"

我试图用一组数组来做这件事,但这无法保存NSUserDefaults.

现在我尝试使用具有结构的自定义类来创建对象并附加到数组,但在尝试将其保存到时也会出错NSUserDefaults.我需要保存这个结构,但我不知道什么是正确的形式.我该怎么做？

var taskMgr: TaskManager = TaskManager()

struct task {
    var name = "Un-Named"
    var lastName = "Un-lastNamed"
}

class TaskManager: NSObject {

    var tasks : [task] = []

    func addTask(name : String, lastName: String){
        tasks.append(task(name: name, lastName: desc))
    }
}

我在 Xcode 中有一个包含一些目标的项目。当我打开故事板文件时，项目开始构建。这是一个缓慢的过程...

当我打开故事板时，如何停止这个构建过程？

谢谢！

我正在尝试在应用程序Swift中显示我的位置,但这没有显示任何内容,地图全是蓝色..

我的代码是这个形式的互联网教程:

 var latitude:CLLocationDegrees = location.location.coordinate.latitude
    var longitude:CLLocationDegrees = location.location.coordinate.longitude
    var homeLati: CLLocationDegrees = 40.01540192
    var homeLong: CLLocationDegrees = 20.87901079
    var latDelta:CLLocationDegrees = 0.01
    var longDelta:CLLocationDegrees = 0.01
    var span:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, longDelta)

    var myLocation:CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitude, longitude)
    var region:MKCoordinateRegion = MKCoordinateRegionMake(myLocation, span)
    self.mapKit.setRegion(region, animated: true)

    self.mapKit.showsUserLocation = true
    ///Red Pin
    var myHomePin = MKPointAnnotation()
    myHomePin.coordinate = myHome
    myHomePin.title = "Home"
    myHomePin.subtitle = "Bogdan's home"
    self.mapKit.addAnnotation(myHomePin)

我在.split中导入了相应的配置..这段代码有什么不好的？

谢谢!