图像加载在iPhone上，但不在iPad上

Question

我试图将图片加载到为iphone制作的应用中的imageview，但也应该支持在ipad上运行。所以当我在iphone模拟器中加载图像时，它工作正常，但是当我切换到ipad模拟器时，图像不会加载到图像视图中。任何建议??

- (IBAction)chooseImage:(id)sender
{
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {


//iPhone
self.imagePicker = [[UIImagePickerController alloc] init];
self.imagePicker.delegate = self;
[self.imagePicker setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
[self presentViewController:self.imagePicker animated:YES completion:nil];

}
else {
//iPad

UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.delegate = self;
UIPopoverController *popoverController=[[UIPopoverController alloc] initWithContentViewController:imagePickerController];
popoverController.delegate=self;
[popoverController presentPopoverFromRect:((UIButton *)sender).bounds inView:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];}


}
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
self.image = info[UIImagePickerControllerOriginalImage];
[self.imageView setImage:self.image];
[self dismissViewControllerAnimated:YES completion:nil];
}

- (void) imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[self dismissViewControllerAnimated:YES completion:nil];

}

Answer 1

for iPad，

[popoverController presentPopoverFromRect:[sender frame] inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

Answer 2

您没有在Ipad编码中设置sourceType 在iPad编码中添加此行

[imagePickerController setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];

并且在delgate方法中，在评论

中提及Popover

Answer 3

- (IBAction)chooseImage:(id)sender
{
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {


//iPhone
self.imagePicker = [[UIImagePickerController alloc] init];
self.imagePicker.delegate = self;
[self.imagePicker setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
[self presentViewController:self.imagePicker animated:YES completion:nil];

}
else {
//iPad

UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.delegate = self;
UIPopoverController *popoverController=[[UIPopoverController alloc] initWithContentViewController:imagePickerController];
popoverController.delegate=self;
[imagePickerController setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
[popoverController presentPopoverFromRect:((UIButton *)sender).bounds inView:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];}

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

if
    ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
self.image = info[UIImagePickerControllerOriginalImage];
[self.imageView setImage:self.image];
[self dismissViewControllerAnimated:YES completion:nil];

}
else {
    [self dismissViewControllerAnimated:YES completion:NULL];

}
}

Answer 4

使用UIPopoverController在iPad中呈现UIImagePicker。