[英]iPhone SDK - How to take a picture with custom camera view?
I want to release the shutter as soon as the user tabs on the screen. 我想在用户选中屏幕时立即释放快门。 I have working code for displaying the camera in fullscreen mode. 我有工作代码以全屏模式显示相机。 How can I trigger the shutter by a touch? 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]; }
You should use the takePicutre method and then detect any touches on the screen. 您应该使用takePicutre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 http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html#//apple_ref/occ/instm/UIImagePickerController/takePicture
Something like this 像这样的东西
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
self.imgPicker.takePicture;
}
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