Presenting an Imagepicker in PopOver - iphone

Question

Ive been searching about a multiple image picker, and I stumble to AGImagePickerController, but then, Im coding in iPad, how can I present the picker in a popoverController from a alertView? Is it possible? or should I shift in presenting it via normal UIButton? Please help.
AGImagePickerController *imagePickerController = [[AGImagePickerController alloc] initWithFailureBlock:^(NSError *error) {
NSLog(#"Fail. Error: %#", error);
if (error == nil) {
NSLog(#"User has cancelled.");
[self dismissModalViewControllerAnimated:YES];
} else {
// We need to wait for the view controller to appear first.
double delayInSeconds = 0.015;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
[self dismissModalViewControllerAnimated:YES];
});
}
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault animated:YES];
} andSuccessBlock:^(NSArray *info) {
NSLog(#"Info: %#", info);
[self.selectedPhotos setArray:info];
}
[self dismissModalViewControllerAnimated:YES];
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault animated:YES];
}];
// Show saved photos on top
imagePickerController.shouldShowSavedPhotosOnTop = YES;
imagePickerController.selection = self.selectedPhotos;
// Custom toolbar items
AGIPCToolbarItem *selectAll = [[AGIPCToolbarItem alloc] initWithBarButtonItem:[[UIBarButtonItem alloc] initWithTitle:#"+ Select All" style:UIBarButtonItemStyleBordered target:nil action:nil] andSelectionBlock:^BOOL(NSUInteger index, ALAsset *asset) {
return YES;
}];
AGIPCToolbarItem *flexible = [[AGIPCToolbarItem alloc] initWithBarButtonItem:[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil] andSelectionBlock:nil];
AGIPCToolbarItem *selectOdd = [[AGIPCToolbarItem alloc] initWithBarButtonItem:[[UIBarButtonItem alloc] initWithTitle:#"+ Select Odd" style:UIBarButtonItemStyleBordered target:nil action:nil] andSelectionBlock:^BOOL(NSUInteger index, ALAsset *asset) {
return !(index % 2);
}];
AGIPCToolbarItem *deselectAll = [[AGIPCToolbarItem alloc] initWithBarButtonItem:[[UIBarButtonItem alloc] initWithTitle:#"- Deselect All" style:UIBarButtonItemStyleBordered target:nil action:nil] andSelectionBlock:^BOOL(NSUInteger index, ALAsset *asset) {
return NO;
}];
imagePickerController.toolbarItemsForSelection = [NSArray arrayWithObjects:selectAll, flexible, selectOdd, flexible, deselectAll, nil];
// imagePickerController.toolbarItemsForSelection = [NSArray array];
imagePickerController.maximumNumberOfPhotos = 100;
[self presentModalViewController:imagePickerController animated:YES];
}

Answer 1

you should use this via Round Rect Button:
self.popoverController =
[[UIPopoverController alloc] initWithContentViewController:imagePickerController];
popoverController.delegate = self;
CGRect popoverRect = [self.view convertRect:[YOURBUTTON frame]
fromView:[YOURBUTTON superview]];
popoverRect.size.width = MIN(popoverRect.size.width, 100);
[self.popoverController
presentPopoverFromRect:popoverRect
inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionAny
animated:YES];
[popoverController setPopoverContentSize:CGSizeMake(1024, 500)];