Iphone UIImageView中的实时摄影机

有人知道我如何将实时摄像机输入UIImageView吗

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我有一个自定义用户界面，需要在其中显示摄像头馈送前置摄像头，因此我无法使用UIImagePickerControl。

您需要创建一个捕获会话，并启动它运行。完成后，您可以将捕获会话中的图层添加到视图中：

- (void)setupCaptureSession
{
    NSError* error = nil;

    // Create the session
    _captureSession = [[AVCaptureSession alloc] init];    
    _captureSession.sessionPreset = AVCaptureSessionPresetMedium;
    AVCaptureDevice* device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

    AVCaptureDeviceInput* input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];

    [_captureSession addInput:input];
    AVCaptureVideoDataOutput* output = [[AVCaptureVideoDataOutput alloc] init];
    [_captureSession addOutput:output];

    // Configure your output.
   dispatch_queue_t queue = dispatch_queue_create("myCameraOutputQueue", NULL);
   //If you want to sebsequently use the data, then implement the delegate.
   [output setSampleBufferDelegate:self queue:queue]; 
}

_myView.layer addSubLayer:_previewLayer];

完成此操作后，可以按如下方式创建预览层：

_previewLayer = [AVCaptureVideoPreviewLayer layerWithSession:_captureSession];
[_captureSession startRunning];

然后将预览层添加到视图中：

- (void)setupCaptureSession
{
    NSError* error = nil;

    // Create the session
    _captureSession = [[AVCaptureSession alloc] init];    
    _captureSession.sessionPreset = AVCaptureSessionPresetMedium;
    AVCaptureDevice* device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

    AVCaptureDeviceInput* input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];

    [_captureSession addInput:input];
    AVCaptureVideoDataOutput* output = [[AVCaptureVideoDataOutput alloc] init];
    [_captureSession addOutput:output];

    // Configure your output.
   dispatch_queue_t queue = dispatch_queue_create("myCameraOutputQueue", NULL);
   //If you want to sebsequently use the data, then implement the delegate.
   [output setSampleBufferDelegate:self queue:queue]; 
}

_myView.layer addSubLayer:_previewLayer];

---

您需要创建一个捕获会话，并启动它运行。完成后，您可以将捕获会话中的图层添加到视图中：

- (void)setupCaptureSession
{
    NSError* error = nil;

    // Create the session
    _captureSession = [[AVCaptureSession alloc] init];    
    _captureSession.sessionPreset = AVCaptureSessionPresetMedium;
    AVCaptureDevice* device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

    AVCaptureDeviceInput* input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];

    [_captureSession addInput:input];
    AVCaptureVideoDataOutput* output = [[AVCaptureVideoDataOutput alloc] init];
    [_captureSession addOutput:output];

    // Configure your output.
   dispatch_queue_t queue = dispatch_queue_create("myCameraOutputQueue", NULL);
   //If you want to sebsequently use the data, then implement the delegate.
   [output setSampleBufferDelegate:self queue:queue]; 
}

_myView.layer addSubLayer:_previewLayer];

完成此操作后，可以按如下方式创建预览层：

_previewLayer = [AVCaptureVideoPreviewLayer layerWithSession:_captureSession];
[_captureSession startRunning];

然后将预览层添加到视图中：

- (void)setupCaptureSession
{
    NSError* error = nil;

    // Create the session
    _captureSession = [[AVCaptureSession alloc] init];    
    _captureSession.sessionPreset = AVCaptureSessionPresetMedium;
    AVCaptureDevice* device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];

    AVCaptureDeviceInput* input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];

    [_captureSession addInput:input];
    AVCaptureVideoDataOutput* output = [[AVCaptureVideoDataOutput alloc] init];
    [_captureSession addOutput:output];

    // Configure your output.
   dispatch_queue_t queue = dispatch_queue_create("myCameraOutputQueue", NULL);
   //If you want to sebsequently use the data, then implement the delegate.
   [output setSampleBufferDelegate:self queue:queue]; 
}

_myView.layer addSubLayer:_previewLayer];

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查看AVCaptureVideoPreviewLayer类查看AVCaptureVideoPreviewLayer类您好，感谢您的快速回复！我已经试过了，但是UIImageView仍然没有显示在相机上。我已将_myView替换为UIImageView现在要做什么？_myView是要将相机添加到的视图的名称。您可以尝试使用以下选项设置该视图：_camera.previewLayer.frame=_myView.bounds；运行[\u captureSession startRunning]时，它为我提供了以下视图。。。但我有个例外。。有什么好主意吗？让我们来打招呼，谢谢你的快速回复！我已经试过了，但是UIImageView仍然没有显示在相机上。我已将_myView替换为UIImageView现在要做什么？_myView是要将相机添加到的视图的名称。您可以尝试使用以下选项设置该视图：_camera.previewLayer.frame=_myView.bounds；运行[\u captureSession startRunning]时，它为我提供了以下视图。。。但我有个例外。。有什么想法吗？让我们