iPhone SDK - 如何使用自定义相机视图拍照？

Question

当用户点击屏幕时，我希望能够立即释放快门。我已经有了用于全屏显示相机的工作代码。如何通过触摸触发快门？

- (IBAction)takePicture
{
    if (!self.imgPicker) {
        self.imgPicker = [[UIImagePickerController alloc] init];
        self.imgPicker.allowsEditing = NO;
        self.imgPicker.delegate = self;
    }
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
    {
        self.imgPicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        self.imgPicker.showsCameraControls = NO;
        self.imgPicker.wantsFullScreenLayout = YES;
CGAffineTransform cameraTransform = CGAffineTransformMakeScale(1.132, 1.132);
        self.imgPicker.cameraViewTransform = cameraTransform;
UIView *headsUpView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 480, 320)];
[self.imgPicker setCameraOverlayView:headsUpView];
    } else {
        NSLog(@"相机不可用。");
        self.imgPicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;  
    }
[self presentModalViewController:self.imgPicker animated:YES];
}

- dan

Answer 1

你应该使用takePicture方法，然后检测屏幕上的任何触摸。

http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html#//apple_ref/occ/instm/UIImagePickerController/takePicture

这样的东西

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 
{
    UITouch *touch = [[event allTouches] anyObject];
    self.imgPicker.takePicture;
}

- octermircty