I'm previewing a file using UIDocumentInteractionController, but it is occupying all the area of the iPad. I would like it to appear on the detail view of the split view controller. I've checked that the UIView of my view controller doesn't occupy all the screen. Any ideas? I checked that the documentInteractionControllerRectForPreview: is called.
-(void)requestExecutedWithSuccess:(Model *)model {
UIDocumentInteractionController *docInteractionCont = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:model.filePath]];
self.docInteractionController = docInteractionCont;
self.docInteractionController.delegate = self;
BOOL attachmentShown = [self.docInteractionController presentPreviewAnimated:YES];
...
}
- (UIViewController *) documentInteractionControllerViewControllerForPreview: (UIDocumentInteractionController *) controller {
return [self navigationController];
}
- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller
{
return self.view;
}
- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller
{
return self.view.frame;
}
Related
I have a UIPageViewController that I've set up with an array as the datasource. I see the first page fine and the presentation count dots show up correctly, but when I try to drag the to the next page nothing happens. So I set up some breakpoints in the viewControllerAfterViewController as well as Before methods and they never get called on. The other dataSource methods for presentationCountForPageViewController get called on fine.
Any idea what I am missing? I've been going line by line with examples I've found on the web but can't find anything.
- (void)viewDidLoad
{
[super viewDidLoad];
UIPageViewController *pageController = self.pageController;
pageController.dataSource = self;
UIChildViewController *initialViewController = [self viewControllerAtIndex:0];
NSArray *viewControllers = #[initialViewController];
[pageController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:YES completion:nil];
[self addChildViewController:pageController];
[self.view addSubview:pageController.view];
[pageController didMoveToParentViewController:self];
}
- (UIPageViewController *)pageController
{
return !_pageController ? _pageController =
({
UIPageViewController *value = [[UIPageViewController alloc] initWithTransitionStyle:UIPageViewControllerTransitionStyleScroll
navigationOrientation:UIPageViewControllerNavigationOrientationHorizontal
options:nil];
value.view.frame = self.view.bounds;
value;
}) : _pageController;
}
- (UIViewController *)pageViewController:(UIPageViewController *)pa geViewController viewControllerBeforeViewController:(UIChildViewController *)viewController
{
NSUInteger index = viewController.index;
return (index == 0 ) ? nil : [self viewControllerAtIndex:--index];
}
- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerAfterViewController:(UIChildViewController *)viewController
{
NSUInteger index = viewController.index;
index++;
return (index == self.myDataSourceArray.count) ? nil : [self viewControllerAtIndex:index];
}
- (UIChildViewController *)viewControllerAtIndex:(NSUInteger)index
{
UIChildViewController *childViewController = [UIChildViewController new];
childViewController.view.frame = self.pageController.view.bounds;
childViewController.index = index;
...
return childViewController;
}
- (NSInteger)presentationCountForPageViewController: (UIPageViewController *)pageViewController
{
// The number of items reflected in the page indicator.
return self.myDataSourceArray.count;
}
- (NSInteger)presentationIndexForPageViewController:(UI PageViewController *)pageViewController
{
// The selected item reflected in the page indicator.
return 0;
}
The problem was that in including my UIViewController subclass which encapsulated the UIPageViewController, I forgot in the parent view controller's viewDidLoad to include addChildViewController and didMoveToParentViewController
[self addChildViewController:myViewController];
[self.view addSubview:myViewController.view];
[myViewControllerController didMoveToParentViewController:self];
Fixed the problem.
I am loading multiple UIViewControllers in UIPageViewController with each UIViewController having their own navigation bar. I have implemented all the required data source and delegate methods for UIPageViewController and it showing up correctly.
But when I scroll my view controller horizontally, more often, I see a white blank screen instead of my view controller. Below is my code.
Any clue what could be wrong here.
PS: I tried by removing the IF condition in my viewControllerForRequestID method and returning a new controller every time. This works but then I end up with one view controller showing up twice in pagination.
- (UIViewController *)pageViewController:(UIPageViewController *)iPageViewController viewControllerBeforeViewController:(UIViewController *)iViewController {
[self.pageControl setCurrentPage:self.selectedRequestIndex];
if (self.selectedRequestIndex == 0) {
return nil;
}
NSUInteger aNewSelectedRequestIndex = self.selectedRequestIndex - 1;
NSString *aPreviousRequestID = [self.paginationRequestIDList[aNewSelectedRequestIndex] stringValue];
self.selectedRequestIndex = aNewSelectedRequestIndex;
self.selectedRequestID = aPreviousRequestID;
return [self viewControllerForRequestID:self.selectedRequestID];
}
- (UIViewController *)pageViewController:(UIPageViewController *)iPageViewController viewControllerAfterViewController:(UIViewController *)iViewController {
[self.pageControl setCurrentPage:self.selectedRequestIndex];
if (self.selectedRequestIndex == NSNotFound || self.selectedRequestIndex >= self.paginationRequestIDList.count - 1) {
return nil;
}
NSUInteger aNewSelectedRequestIndex = self.selectedRequestIndex + 1;
NSString *aNextRequestID = self.paginationRequestIDList[aNewSelectedRequestIndex];
self.selectedRequestIndex = aNewSelectedRequestIndex;
self.selectedRequestID = aNextRequestID;
return [self viewControllerForRequestID:self.selectedRequestID];
}
- (MyNavigationViewController *)viewControllerForRequestID:(id)iRequestID {
NSString *aRequestID = iRequestID;
// Safe check to avoid numbers in request ID
if (![iRequestID isKindOfClass:[NSString class]]) {
aRequestID = [iRequestID stringValue];
}
#synchronized (self) {
if ([self.viewControllers containsObjectForKey:iRequestID]) {
MyNavigationViewController *aNavigationController = self.viewControllers[iRequestID];
return aNavigationController;
}
MyDataModel *aRequestData = self.savedRequestData[iRequestID];
MyDataModelController *aRequestInfoController = [[MyDataModelController alloc] initWithRequestData:aRequestData];
aRequestInfoController.delegate = self;
MyNavigationViewController *aNavigationController = [[MyNavigationViewController alloc] initWithRootViewController:aRequestInfoController];
[self.viewControllers setObject:aNavigationController forKey:iRequestID];
return aNavigationController;
}
}
I'm using the normal delegate methods to display a button in portrait mode to show/hide the UITableView in this way:
I'm using this in the UITableViewController:
// Split View Controller
- (void)awakeFromNib
{
[super awakeFromNib];
self.splitViewController.delegate = self;
}
- (id <SplitViewBarButtonItemPresenter>)splitViewBarButtonItemPresenter
{
id detailVC = [self.splitViewController.viewControllers lastObject];
if (![detailVC conformsToProtocol:#protocol(SplitViewBarButtonItemPresenter)]) {
detailVC = nil;
}
return detailVC;
}
- (BOOL)splitViewController:(UISplitViewController *)svc
shouldHideViewController:(UIViewController *)vc
inOrientation:(UIInterfaceOrientation)orientation
{
return UIInterfaceOrientationIsPortrait(orientation);
}
- (void)splitViewController:(UISplitViewController *)svc
willHideViewController:(UIViewController *)aViewController
withBarButtonItem:(UIBarButtonItem *)barButtonItem
forPopoverController:(UIPopoverController *)pc
{
barButtonItem.title = #"Table of Data";
[self splitViewBarButtonItemPresenter].splitViewBarButtonItem = barButtonItem;
}
- (void)splitViewController:(UISplitViewController *)svc
willShowViewController:(UIViewController *)aViewController
invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem
{
[self splitViewBarButtonItemPresenter].splitViewBarButtonItem = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
While in my DetailViewControllerS (multiple) i'm using
- (void)handleSplitViewBarButtonItem:(UIBarButtonItem *)splitViewBarButtonItem
{
NSMutableArray *toolbarItems = [self.toolbar.items mutableCopy];
if (_splitViewBarButtonItem) [toolbarItems removeObject:_splitViewBarButtonItem];
if (splitViewBarButtonItem) [toolbarItems insertObject:splitViewBarButtonItem atIndex:0];
self.toolbar.items = toolbarItems;
_splitViewBarButtonItem = splitViewBarButtonItem;
}
- (void)setSplitViewBarButtonItem:(UIBarButtonItem *)splitViewBarButtonItem
{
if (splitViewBarButtonItem != _splitViewBarButtonItem) {
[self handleSplitViewBarButtonItem:splitViewBarButtonItem];
}
}
The problem is if change the detail view through a "Replace Segue" the button to show/hide the UITableView in the new DetailViewController disappears unless i rotate the iPad to landscape and then back to portrait!
Or even if i go to a another ViewController, which should not present the button, and then go back to my main DetailView the button is not shown unless i rotate the device.
How can i fix it, making the button always appear if i'm in portrait mode??
normally you shouldn't use replace segue in this case.
Those delegate methods plus a NavigationViewController are enough for displaying the barbutton item.
I use UIPopoverController to popup an view in iPad iOS7 like this:
if (!self.popover) {
UIViewController *popupVC = [[UIViewController alloc] init];
[popupVC.view addSubview:thePopupView];
popupVC.preferredContentSize = CGSizeMake(240, 140);
self.popover = [[UIPopoverController alloc] initWithContentViewController:popupVC];
self.popover.delegate = self;
}
[self.popover presentPopoverFromBarButtonItem:barButton permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
But when popover active, it make screen darker while this effect not affect other views in iOS6.
How to overcome this issue? Thanks!
If you mean the dimming view that is inserted under the popover, there is only one workaround - use a custom popoverBackgroundViewClass.
It's complicated, but not as complicated as you might think.
Another method is to traverse the popover view stack and remove the dimming view manually, as shown here in a UIPopoverController subclass:
#property (nonatomic, assign) BOOL showsDimmingView;
....
- (void)presentPopoverFromBarButtonItem:(UIBarButtonItem *)item
permittedArrowDirections:(UIPopoverArrowDirection)arrowDirections
animated:(BOOL)animated
{
[super presentPopoverFromBarButtonItem:item
permittedArrowDirections:arrowDirections
animated:animated];
if (!_showsDimmingView) {
[self removeDimmingView:[[UIApplication sharedApplication].keyWindow.subviews lastObject]];
}
}
- (void)presentPopoverFromRect:(CGRect)rect
inView:(UIView *)view
permittedArrowDirections:(UIPopoverArrowDirection)arrowDirections
animated:(BOOL)animated
{
[super presentPopoverFromRect:rect
inView:view
permittedArrowDirections:arrowDirections
animated:animated];
if (!_showsDimmingView) {
[self removeDimmingView:[[UIApplication sharedApplication].keyWindow.subviews lastObject]];
}
}
- (void)removeDimmingView:(UIView *)subview
{
for (UIView *sv in subview.subviews) {
if (sv.alpha == 0.15f && [sv isKindOfClass:NSClassFromString(#"_UIPopoverViewBackgroundComponentView")]) {
sv.alpha = 0.f;
}
const CGFloat *components = CGColorGetComponents(sv.backgroundColor.CGColor);
if (sv.backgroundColor && (components[1] == 0.15f || sv.alpha == 0.15f)) {
[sv removeFromSuperview];
}
[self removeDimmingView:sv];
}
}
I have a UIViewController on an iPad that I am displaying modally.
However after dismissing it, the view controller that displayed it does not change in orientation and acts as if the underlying view controller did not change, unless the device is rotated back and forth.
I'm using these methods in the modal view controller:
- (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation {
[self updateUI];
return YES;
}
- (BOOL)shouldAutorotate {
[self updateUI];
return YES;
}
-(NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskAll;
}
-(void) updateUI{
}
The underlying UINavigationController code (the one that doesn't change itself properly once the modal view controller is dismissed):
- (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation {
[self adjustUIForOrientation:interfaceOrientation];
return YES;
}
- (BOOL)shouldAutorotate {
[self adjustUIForOrientation:[self preferredInterfaceOrientationForPresentation]];
return YES;
}
-(NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskAll;
}
- (void) adjustUIForOrientation: (UIInterfaceOrientation)interfaceOrientation {
if(UIDeviceOrientationIsPortrait(interfaceOrientation)) {
[_landscapeTemplate hide];
[_portraitTemplate show];
_activeTemplate = _portraitTemplate;
} else {
[_portraitTemplate hide];
[_landscapeTemplate show];
_activeTemplate = _landscapeTemplate;
}
}
-(IBAction) signInButtonTouched: (id) sender{
if (![Session shared].loggedInUser){
UserProfileLoginViewController *userProfileLoginVC = [[[UserProfileLoginViewController alloc] initWithNibName:#"UserProfileLoginViewController" bundle:nil] autorelease];
userProfileLoginVC.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
self.modalPresentationStyle = UIModalPresentationCurrentContext;
//self.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentViewController:userProfileLoginVC animated:YES completion:nil];
// [self pushViewController:userProfileLoginVC animated:YES];
[userProfileLoginVC.emailTextField becomeFirstResponder];
}
else [[Session shared] explicitEnd];
}
Is there a way to make this work? Basically it appears that the view controller that presented the modal view controller is not getting the rotation calls forwarded to itself.