I have an iPad app with UISplitViewController. I'm trying to update detail view with 3 string properties.
I have the delegate setup but see other examples using id detailItem.
DetailView.m
- (void)setDetailItem:(id)newDetailItem {
if (detailItem != newDetailItem) {
[detailItem release];
detailItem = [newDetailItem retain];
NSLog(#"Text Should be here: %#", self.detailItem);
}
if (popoverController != nil) {
[popoverController dismissPopoverAnimated:YES];
}
}
LeftView.m didSelectRowAtIndex
NSString *mystring = #"Test";
detailViewControlleriPad.detailItem = mystring;
I want to just pass those 3 strings from left to detail view or even the NSManagedObject which will in turn update a tableview.
This is a great tutorial I found on how to use a SplitViewController, and pass data from on the detail view to the root view. Hope this helps!
Related
In my iPad app. I'm working on UIPageViewController I want to set text at one page and image at another page. I have tried a lot and googled,but I did not find any solution. It's killing my time so if any one have worked on it please guide me and post sample code.
I have used the code which is there in below link
http://www.ioslearner.com/implementing-uipageviewcontroller-programatically-without-storyboarding/
here is the sample code. i used contentviewcontroller.
i want to use two view controllers with UIPageViewController
- (UIPageViewControllerSpineLocation)pageViewController:(UIPageViewController *)pageViewController
spineLocationForInterfaceOrientation:(UIInterfaceOrientation)orientation
{
if(UIInterfaceOrientationIsPortrait(orientation))
{
//Set the array with only 1 view controller
UIViewController *currentViewController = [self.pageViewController.viewControllers objectAtIndex:0];
NSArray *viewControllers = [NSArray arrayWithObject:currentViewController];
[self.pageViewController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:YES completion:NULL];
//Important- Set the doubleSided property to NO.
self.pageViewController.doubleSided = NO;
//Return the spine location
return UIPageViewControllerSpineLocationMin;
}
else
{
NSArray *viewControllers = nil;
ContentViewController *currentViewController = [self.pageViewController.viewControllers objectAtIndex:0];
NSUInteger currentIndex = [self.modelArray indexOfObject:[(ContentViewController *)currentViewController labelContents]];
NSUInteger currentIndex2 = [self.imagesArray2 indexOfObject:[(ContentViewController *)currentViewController imageContents]];
if(currentIndex == 0 || currentIndex %2 == 0 || currentIndex2 == 0||currentIndex2 %2 == 0)
{
UIViewController *nextViewController = [self pageViewController:self.pageViewController viewControllerAfterViewController:currentViewController];
viewControllers = [NSArray arrayWithObjects:currentViewController, nextViewController, nil];
}
else
{
UIViewController *previousViewController = [self pageViewController:self.pageViewController viewControllerBeforeViewController:currentViewController];
viewControllers = [NSArray arrayWithObjects:previousViewController, currentViewController, nil];
}
//Now, set the viewControllers property of UIPageViewController
[self.pageViewController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:YES completion:NULL];
return UIPageViewControllerSpineLocationMid;
}
}
If I understood well then add an imageView in ContentPageView.xib file and make an outlet of. Set ImageView and label hidden or visible on your required pages.
Following steps can be helpful
Keep UILabel and and UIImageView in ContentViewController
Add UIImage OR NSString in the modelArray.
When you make a new ContantViewController check if object in model is image or string using following.
if ([myObject class] == [UIImage class])
{
//HERE ASSIGN IT TO UIIMAGEVIEW.image
}
else
{
//HERE ASSIGN IT TO UILABEL.text
}
post if you need more help....
Sorry if this is not what you are looking for.....
on language switch within my App, I need to access the views of the MoreViewController in a TabBar and change their titles.
Could anyone pls tell me how to do that?
Your help is much appreciated.
Cols
Here are some snippets that might work for you. Note that all of the below is subject to break on each and every new iOS release at it is not meant to be done.
Customizing the More view title as itself as well as the title while it is being edited by the user.
- (void)customizeTitleViewWithNavigationItem:(UINavigationItem *)navigationItem
{
VASSERT(navigationItem != nil, #"invalid navigationItem supplied", navigationItem);
UILabel *titleView = [[UILabel alloc] initWithFrame:CGRectZero];
titleView.backgroundColor = [UIColor clearColor];
titleView.font = [UIFont boldSystemFontOfSize:20.0f];
titleView.text = navigationItem.title;
[titleView sizeToFit];
navigationItem.titleView = titleView;
[titleView release];
}
This needs to be implemented within the UINavigationController's delegate;
- (void)navigationController:(UINavigationController *)navigationController
willShowViewController:(UIViewController *)viewController
animated:(BOOL)animated
{
if (navigationController == tabBarController_.moreNavigationController)
{
if ([viewController isKindOfClass:NSClassFromString(#"UIMoreListController")])
{
[self customizeTitleViewWithNavigationItem:viewController.navigationItem];
}
else
{
NSLog(#"viewController (%#) does not seem to be a UIMoreListController", viewController);
}
}
else
{
NSLog(#"navigationController (%#) does not seem to be the moreNavigationController", navigationController);
}
}
This needs to be implemented within the UITabBarController's delegate;
- (void)tabBarController:(UITabBarController *)controller willBeginCustomizingViewControllers:(NSArray *)viewControllers
{
//get the second view of the upcoming tabbar-controller
UIView *editView = [controller.view.subviews objectAtIndex:1];
//did we get what we expected, which is a UITabBarCustomizeView?
if (editView != nil && [editView isKindOfClass:NSClassFromString(#"UITabBarCustomizeView")])
{ //yes->get the navigation-view
UIView *navigationView = [editView.subviews objectAtIndex:0];
//is that a navigationBar?
if (navigationView != nil && [navigationView isKindOfClass:[UINavigationBar class]])
{ //yes->...
UINavigationBar *navigationBar = (UINavigationBar *)navigationView;
[self customizeTitleViewWithNavigationItem:navigationBar.topItem];
}
else
{
NSLog(#"the navigationView (%#) does not seem to be a navigationBar", navigationView);
}
}
else
{
NSLog(#"the editView (%#) does not seem to be a UITabBarCustomizeView", editView);
}
}
I was able to change the title of one of the tabBar items for my 6th view controller (the last one in the more list) with the following code:
NSArray *vcs = [(UITabBarController *)self.window.rootViewController viewControllers];
[[vcs.lastObject tabBarItem] setTitle:#"New Title"];
Is this what you want to do?
After Edit: To change these titles after they are set up the first time, you need to re-set the viewControllers property of the tabBar controller. In this code example, I connected a button in my 6th view controller to an action method that changes the titles of 3 of my controllers, 2 in the more list and one in the regular list.
-(IBAction)changeNames:(id)sender {
UITabBarController *tbc = (UITabBarController *)[[UIApplication sharedApplication] delegate].window.rootViewController;
NSArray *vcs = tbc.viewControllers;
[[vcs.lastObject tabBarItem] setTitle:#"New Title"];
[[[vcs objectAtIndex:4] tabBarItem] setTitle:#"New VC"];
[[[vcs objectAtIndex:3] tabBarItem] setTitle:#"New VC2"];
tbc.viewControllers = tbc.viewControllers;
}
I am trying to present a UIDocumentInteractionController from a navigation controller, when the user selects a file from the tableView.
The interactionControllerWithURL returns NO and the delegate method documentInteractionControllerViewControllerForPreview is never called and the documentInteraction controller does not appear.
The following code is executed when the user selects an item in table:
NSURL *fileURL;
fileURL = (NSURL *)[[DataMng sharedMng] getFileInFolder:self.navigationItem.title atRow:indexPath.row type:type];
if (self.docInteractionController == nil){
self.docInteractionController = [UIDocumentInteractionController interactionControllerWithURL:fileURL];
if (!self.docInteractionController) {
NSLog(#"Selected a file with estension not supported for visualization");
return;
}
self.docInteractionController.delegate = self;
}else{
self.docInteractionController.URL = fileURL;
}
if(! [self.docInteractionController presentPreviewAnimated:YES]){
NSLog(#"ERROR in presenting preview");
}
The delegate controller (self) conforms with UIDocumentInteractionControllerDelegate protocol and is a navigation controller inside a Tabbar controller.
Any ideas will be welcome
I answer my own question:
the form I was launching the docInteractionController was correct, the problem was in the file url, which lack the correct extension (.pdf in my case) and in the controller UTI, which must of the extended form (com.adobe.pdf).
Once correctly set the preview was displayed without problems.
you use these methods to show UIDocumentInteractionController:-
-(UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller
{
return [[[[UIApplication sharedApplication] delegate]window]rootViewController];
}
-(void)documentInteractionControllerDidEndPreview: (UIDocumentInteractionController *)controller
{
self.navigationController.navigationBarHidden = YES;
}
if(! [self.docInteractionController presentPreviewAnimated:YES]){
NSLog(#"ERROR in presenting preview");
}
Think, this is not the right way to present document interactionController. Try setting the below code
CGRect rect = CGRectMake(0, 0, 0, 0);
[self.docInteractionController presentOpenInMenuFromRect:rect inView:self.view animated:YES];
Hope this helps you.
I'm building my first basic tabbed, application with one of the views as a navigation controller that will display a view controller.
I'm running into an issue at the point the user selects a category from the first tableview as shown in the screenshot: http://www.cl.ly/7YOF
When another instance of the tableviewcontroller is loaded and pushed onto the stack of the navigationcontroller, the table is obstructed by the title bar:
http://www.cl.ly/7ZRz
The table view select logic is below:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
KHCategory *selectedItem = [categoryArray objectAtIndex:indexPath.row];
if (selectedItem.categories.count > 0) {
KHCategoryTableViewController *nextCategoryController = [[KHCategoryTableViewController alloc] init];
nextCategoryController.categoryArray = [[NSArray alloc] initWithArray:selectedItem.categories];
nextCategoryController.title = selectedItem.labelValue;
[self.navigationController pushViewController:nextCategoryController animated:YES];
[nextCategoryController release];
} else {
NSLog(#"show detail view");
}
}
EDIT:
I should be clear that an instance of KHCategoryTableViewController is the root of my NavigationController and the NavController is wired up to the first tab of a TabController.
Two interesting things: it measures 20 pixels down (size of status bar) and your line "nextCategoryController.title = ..." doesn't seem to do anything. So...
1) I assume you haven't used setStatusBarHidden?
2) Looks like navController stuff isn't working. Can you give the code from the appDelegate that creates the tabBar and NavController?
3) Add this code, and try calling [self dumpWindow: #"VDL"] from your Subcategory ViewDidLoad method. I find it invaluable whenever checking whether my view structure is correct.
- (void) dumpWindowFrom:(NSString *) fromText {
[self dumpViews: nil from:fromText];
}
void dumpViewsRecursive(UIView* view, NSString *text, NSString *indent) {
Class cl = [view class];
NSString *classDescription = [cl description];
if ([text compare:#""] == NSOrderedSame)
NSLog(#"%d: %# %# %#", (int)view, classDescription, NSStringFromCGRect(view.frame), view.hidden ? #"Inv" : #"Vis");
else
NSLog(#"%d: %# %# %# %#", (int)view, text, classDescription, NSStringFromCGRect(view.frame), view.hidden ? #"Inv" : #"Vis");
for (NSUInteger i = 0; i < [view.subviews count]; i++)
{
UIView *subView = [view.subviews objectAtIndex:i];
NSString *newIndent = [[NSString alloc] initWithFormat:#" %#", indent];
NSString *msg = [[NSString alloc] initWithFormat:#"%#%d:", newIndent, i];
dumpViewsRecursive (subView, msg, newIndent);
[msg release];
[newIndent release];
}
}
- (void) dumpViews: (UIView *) view {
dumpViewsRecursive (( (!view) ? [[UIApplication sharedApplication] keyWindow] : view), #"" ,#"");
}
- (void) dumpViews: (UIView *) view from:(NSString *) fromText{
dumpViewsRecursive ((!view) ? [[UIApplication sharedApplication] keyWindow] : view, fromText, #"");
}
4) You could always just cheat and add:
CGRect frame = [nextCategoryController.view frame];
frame.origin.y = frame.origin.y+20.0;
[nextCategoryController.view setFrame:frame];
Check the autoResizingMask of your KHCategoryTableViewController's view.
UINavigationController overview at iPhone Dev Center says:
Note: Because the amount of space
available for the custom view can vary
(depending on the size of the other
navigation views), your custom view’s
autoresizingMask property should be
set to have a flexible width and
height. Before displaying your view,
the navigation controller
automatically positions and sizes it
to fit the available space.
This issue became resolved when I built against iOS 4.3 and not iOS 5.
I'm new to Objective-C and need help!
I'm following the example "PageControl" which can be found on the net. I added a button to the view in the NIB and hooked up an action which the implementation is found below.
Here is my definition for the view controller being displayed in the page control:
//ContactCardViewController.h
#interface ContactCardViewController : UIViewController
{
int pageNumber;
NSMutableString *s;
}
//ContactCardViewController.m implementation
- (id)initWithPageNumber:(int)page {
if (self = [super initWithNibName:#"ContactCardViewController" bundle:nil]) {
s = [[NSString alloc] initWithFormat:#"page: %d", page];
}
return self;
}
- (id)initWithString:(NSDictionary *)_s {
if (self = [super initWithNibName:#"ContactCardViewController" bundle:nil]) {
NSMutableString *t = [[NSMutableString alloc] initWithString:_s];
s = t;
}
return self;
}
-(IBAction)callOrAddToContacts:(id)sender
{
jobtitleLabel.text = s;
}
//AppDelegate.m
//in delegate that loads the scroll view with the view for the current page:
- (void)loadScrollViewWithPage:(int)page {
//init the view this way the page: and the correct page number is displayed
controller = [[ContactCardViewController alloc] initWithPageNumber:page ];
//init the view this way, the value of the first person is always displayed
controller = [[ContactCardViewController alloc] initWithString:[[self.allNames objectAtIndex:page] objectForKey:#"firstname"]];
}
Please help me to understand why when the view is created with initWithString and then accessed via the button action only value for the first person in the list is always returned. When i init the view using initWithPageNumber s has the correct value Page: X.
In the InitWithString code, you're passing in a Dictionary, not a string.
- (id)initWithString:(NSDictionary *)_s {
if (self = [super initWithNibName:#"ContactCardViewController" bundle:nil]) {
NSMutableString *t = [[NSMutableString alloc] initWithString:_s];
s = t;
}
return self;
}
You may want to change that to NSString, or change the NSMutableString... to an instance of NSDictionary. One or the other.
Found out the problem was in the plist file. The code is fine.