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[英]Simultaneous animation when entering editing mode of UITableViewCell
[英]Entering UIImagePickerController editing mode
我使用UIImagePickerController
( photoPicker
)用相机拍照,并编辑那些图片( allowEditing = YES
)。 用户可以使用photoPicker.view
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
,选择器使用推photoLibrarySourceType
显示编辑模式,因此它适用于此方法:
- (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");
}
}
}
但是在cameraSourceType
,相机和编辑模式之间没有导航。
我想出了一个小黑客,它对我有用。 我仍然有点新,所以请随意优化,因为我找不到另一种方法来做到这一点。
基本思路是在默认的相机按钮上创建一个不可见的按钮,该按钮执行一个调用[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
}
就像我之前说过的那样,请确保检查相机是否准备就绪。 您可以在stackoverflow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。
我需要开发伙伴来帮助我了解更多有关ios dev的信息并提出问题。 有兴趣吗?
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