Ios 在iPhone（OS 7）上运行摄像头

我有在iPad上完美运行的代码

self.clockInEmployee = nil;
self.clockInEmployee = [[userInfo userInfo] valueForKey:@"employee"];
self.clockInEmployeeRole = [[userInfo userInfo] valueForKey:@"role"];
CLog (@"PIN %@", self.clockInEmployee.pin);

UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = (id)self;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.showsCameraControls = YES;
picker.cameraDevice = UIImagePickerControllerCameraDeviceFront;
picker.cameraOverlayView = self.cameraOverlay.view;
if (isPhone())
{
    picker.view.frame = CGRectMake(0, 748, 1024, 748);
    [mainNavController.view addSubview:picker.view];
    [UIView animateWithDuration:0.5 animations:^{
        picker.view.frame = CGRectMake(0, 0, 1024, 748);

    } completion:^(BOOL finished){
        [picker viewDidAppear:YES];
    }];
}
modViewController = picker;

但在iPhone上，当它试图启动摄像头时，我只看到黑屏

但如果我试着像那样启动它：

[appPresentingViewController presentViewController:picker animated:YES completion:nil];

它发射成功。但在我的特定项目中，它会导致一些UI问题，因此无法使用

我怎么做这个

if (isPhone())
{
    picker.view.frame = CGRectMake(0, 748, 1024, 748);
    [mainNavController.view addSubview:picker.view];
    [UIView animateWithDuration:0.5 animations:^{
        picker.view.frame = CGRectMake(0, 0, 1024, 748);

    } completion:^(BOOL finished){
        [picker viewDidAppear:YES];
    }];
}

适用于iPad和iPhone？

请尝试以下方法：-

//create an overlay view instance
OverlayView *overlay = [[OverlayView alloc]
        initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGTH)];

//create a new image picker instance
UIImagePickerController *picker =
                [[UIImagePickerController alloc] init];
//set source to video!
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
//hide all controls
picker.showsCameraControls = NO;
picker.navigationBarHidden = YES;
picker.toolbarHidden = YES;
//make the video preview full size
picker.wantsFullScreenLayout = YES;
picker.cameraViewTransform =
CGAffineTransformScale(picker.cameraViewTransform,
            CAMERA_TRANSFORM_X,
            CAMERA_TRANSFORM_Y);
//set our custom overlay view
picker.cameraOverlayView = overlay;

//show picker
[self presentModalViewController:picker animated:YES];

---

如需进一步参考-

您可能希望浏览AVCAM的Apple示例项目，可以找到它

您需要做的是这样的事情：

AVCaptureSession *avcam = [[AVCaptureSession alloc] init];
    AVCaptureVideoPreviewLayer *previewLayer = 
        [AVCaptureVideoPreviewLayer layerWithSession:avcam];
    previewLayer.frame = self.previewView.bounds; 
   [self.previewView.layer addSublayer:previewLayer];