在ios中从相机中拾取图像时添加图库选项

Question

我想在我的应用中添加相机功能，但默认的相机视图没有从库中选择图像的选项，我这样做是因为我不想为其制作警报视图用户选择图像选择器类型，即相机或照片库。如何实现这个??

  UIImagePickerController *imagePicker = [[UIImagePickerController alloc]init];
   [imagePicker setSourceType:UIImagePickerControllerSourceTypeCamera];

   imagePicker.showsCameraControls = NO;
   imagePicker.navigationBarHidden = YES;

   imagePicker.wantsFullScreenLayout = YES;
   imagePicker.cameraOverlayView = overlayView;

Answer 1

您创建的叠加视图在该overlayviewController中创建了一个委托，并且还将该委托方法附加到您的主视图中，因此当用户单击叠加视图按钮时，它将在主视图中调用一个函数。

@protocol OverLayViewControllerDelegate;

@protocol OverLayViewControllerDelegate

- (void)selectFromGallery;
- (void)selectFromCamera;

@end

然后根据方法调用设置图像选择器源。

Answer 2

UIImagePickerController *imagePicker = [[UIImagePickerController alloc]init];
    [imagePicker setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];