iPhone SDK-如何使用自定义相机视图拍照？

我想在用户在屏幕上点击后立即释放快门。我有在全屏模式下显示相机的工作代码。我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(@"Camera not available."); self.imgPicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum; } [self presentModalViewController:self.imgPicker animated:YES]; } -（i动作）拍照 { 如果（！self.imgPicker）{ self.imgPicker=[[UIImagePickerController alloc]init]； self.imgPicker.allowsdediting=否； self.imgPicker.delegate=self； } 如果（[UIImagePickerController IsSourceType可用：UIImagePickerController SourceType相机]） { self.imgPicker.sourceType=UIImagePickerControllerSourceTypeCamera； self.imgPicker.showsCameraControls=否； self.imgPicker.wantsFullScreenLayout=是； CGAffineTransform cameraTransform=CGAffineTransformMakeScale（1.132,1.132）； self.imgPicker.cameraViewTransform=cameraTransform； UIView*headsUpView=[[UIView alloc]initWithFrame:CGRectMake（0,0480320）]； [self.imgPicker setCameraOverlayView:headsUpView]； }否则{ NSLog（@“摄像机不可用”）； self.imgPicker.sourceType=UIImagePickerControllerSourceTypeSavedPhotosAlbum； } [self-presentModalViewController:self.imgPicker动画：是]； }

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您应该使用takePicutre方法，然后检测屏幕上的任何触摸

像这样的

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