在iPhone上加載圖像，但在iPad上不加載

Question

我正在嘗試將圖像加載到iPhone專用的應用程序中的imageview中，但也應該支持在ipad上運行。 因此，當我在iphone模擬器中加載圖像時，它可以正常工作，但是當我切換到ipad模擬器時，圖像不會加載到imageview中。 有什么建議么？？

- (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

對於iPad，

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

Answer 2

您未在Ipad編碼中設置sourceType在iPad編碼中添加此行

[imagePickerController setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];

以及在delgate方法中將Popover撤消，如評論中所述

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中呈現UIImagePicker。