进入 UIImagePickerController 编辑模式
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【中文标题】进入 UIImagePickerController 编辑模式【英文标题】:Entering UIImagePickerController editing mode 【发布时间】:2013-07-25 09:12:52 【问题描述】:我使用UIImagePickerController
(photoPicker
) 用相机拍照,然后编辑这些照片 (allowEditing = YES
)。用户可以通过photoPicker.view
中的按钮在相机和库之间切换,但我想在photoPicker
处于编辑模式时删除此按钮。
在photoLibrarySourceType
中,选择器使用推送来显示编辑模式,因此可以使用这种方法:
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
if (navigationController == photoPicker)
NSLog(@"navigation ");
if ([navigationController.viewControllers indexOfObject:viewController] == 1)
// If second UIViewController, set your overlay.
NSLog(@"editing");
但在cameraSourceType
中,相机和编辑模式之间没有导航。
【问题讨论】:
你找到解决方案了吗,我也有同样的问题:( 【参考方案1】:我想出了一个小技巧,它对我有用。我还是有点新,所以请随意优化,因为我找不到其他方法。
基本思想是在默认相机按钮上创建一个不可见按钮,该按钮执行调用[uiimagepickercontroller takePicture]的方法
这是我的示例代码
@implementation myViewController
UIImagePickerController *myImagePickerController;
UIButton * fakeCameraButton;
- (IBAction)showImagePicker:(id)sender
// accessible camera validations implied
myImagePickerController = [[UIImagePickerController alloc]init];
myImagePickerController.sourceType=UIImagePickerControllerSourceTypeCamera;
myImagePickerController.showsCameraControls = YES;
myImagePickerController.delegate=self;
myImagePickerController.allowsEditing=YES;
CGFloat myViewHeight = 100; // you play around with the positions to get your desired frame size. This worked for me
UIView * myView = [[UIView alloc] initWithFrame:CGRectMake(0, myImagePickerController.view.frame.size.height - myViewheight, picker.view.frame.size.width, myViewheight)];
fakeCameraButton = [[UIButton alloc] initWithFrame:CGRectMake(myView.frame.size.width / 2 - 30, myView.frame.size.height/2-15, 60, 60)];// position it over the default camera button
[fakeCameraButton addTarget:self action:@selector(cameraButtonPressed) forControlEvents:UIControlEventTouchUpInside];
[fakeCameraButton setTitle:@"" forState:UIControlStateNormal];
[myView addSubview:fakeCameraButton];
myImagePickerController.cameraOverlayView = myView;
[self presentViewController:myImagePickerController animated:YES completion:nil];
-(void)cameraButtonPressed
// Make sure you check if camera is ready before this method.
[myImagePickerController takePicture];
// you are in editing/preview mode here if allowsEditing = YES
// you can remove all your custom overlay views by
myImagePickerController.cameraOverlay = nil
就像我之前说的,请确保检查相机是否准备就绪。您可以在 *** 上找到有关如何操作的答案。
此代码可能很糟糕,因此欢迎编辑或替代解决方案。
我需要开发伙伴帮助我了解有关 ios 开发的更多信息并提出问题。有人感兴趣吗?
【讨论】:
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