Question

我点击按钮时从相册中获取保存的图像。在显示相册后我没有在iPad上取消按钮取消相册。从相册中选择任何已保存的图像后，关闭并将拾取图像添加到UIImageView。但是如果没有从图库中选择图像，我就无法关闭相册。在iphone中，它正在使用取消。

-(void)picker:(id)sender{

if ([self->popoverController isPopoverVisible]) {
 [self->popoverController dismissPopoverAnimated:YES];

 } else {
 if ([UIImagePickerController isSourceTypeAvailable:
 UIImagePickerControllerSourceTypeSavedPhotosAlbum])
 {
 imagePicker=[[UIImagePickerController alloc]init];

 imagePicker.delegate = self;

 imagePicker.allowsEditing =NO;

 imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

  self->popoverController = [[UIPopoverController alloc]
 initWithContentViewController:imagePicker];

 self->popoverController.delegate = self;


 CGRect popoverRect = [self.view convertRect:[self.view frame]
 fromView:[self.view superview]];

 popoverRect.size.width = MIN(popoverRect.size.width, 100) ;
 popoverRect.origin.x  = popoverRect.origin.x+10;



 [self->popoverController
 presentPopoverFromRect:popoverRect
 inView:self.view
 permittedArrowDirections:UIPopoverArrowDirectionAny
 animated:YES];

 }



 -(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{
 //release picker


 //  [picker dismissModalViewControllerAnimated:YES];

 if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {

 [picker dismissViewControllerAnimated:YES completion:nil];
 }else{

 [picker dismissViewControllerAnimated:YES completion:nil];

 if (popoverController != nil) {
 [popoverController dismissPopoverAnimated:YES];
 popoverController=nil;
 }

 }

}



 -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{


 if (popoverController != nil) {
 [popoverController dismissPopoverAnimated:YES];
 popoverController=nil;
 }


 [picker dismissViewControllerAnimated:YES completion:nil];



 }

Answer 1

您正在popoverController中呈现imagePickerController，因此它不会有“手动取消”按钮，因为您可以点击弹出窗口外的任何位置来关闭它。

Answer 2

我以前遇到过这个问题。请在下面的问题中查看接受的答案。它对我有用。

UIImagePickerController inside UIPopoverController doesn't show Cancel button on iOS7

UIImagePickercontroller取消按钮不在iPad中显示

2 个答案: