I'm switching controllers via my navigation controller. When my app first loads the Appointment screen will scrollsToTop just fine. Once I switch controllers to Customers with
CustomerViewController *customers = [self.storyboard instantiateViewControllerWithIdentifier:#"CustomerViewController"];
[self.navController.view removeFromSuperview];
self.navController = [[UINavigationController alloc] initWithRootViewController:customers];
self.navController.view.frame = self.contentView.bounds;
[self.contentView addSubview:self.navController.view];
it stops working. Then switching back to my Appointments controller with
AppointmentViewController *appointments = [self.storyboard instantiateViewControllerWithIdentifier:#"AppointmentViewController"];
[self.navController.view removeFromSuperview];
self.navController = [[UINavigationController alloc] initWithRootViewController:appointments];
self.navController.view.frame = self.contentView.bounds;
[self.contentView addSubview:self.navController.view];
and then clicking the status bar the Appointments no longer scrolls to top. I have scrollsToTop set to YES in all of my controllers that load so they should be scrolling to the top. Anyone know why this stops working when I switch controllers then switch back?
EDIT:
I have my RootViewController which is my side menu (blue menu) and my AppointmentViewController which is the right side view.
.
The above code is in my RootViewController to determine which view should be placed on top.
You're not removing the old self.navController from your contentView.
Related
I am using UISplitViewController with UITabbarController as master view and navigation controller as detail view. Each of the tabs on the master view contain a navigation controller. When any of the tabs on the master view are selected, a view is pushed on the detail view navigation controller.
recentsviewController = [[RecentsViewController_ipad alloc]initWithNibName:#"RootViewController" bundle:nil];
recentsNav = [[UINavigationController alloc] initWithRootViewController:recentsviewController];
//similarly rootNav and favNav
NSArray* controllers = [NSArray arrayWithObjects:recentsNav,self.rootNav,favNav,nil];
self.tabbarController.viewControllers = controllers;
detailViewController=[[LoginViewController_ipad alloc]init];
detailNav=[[UINavigationController alloc]initWithRootViewController:detailViewController];
splitViewController =[[UISplitViewController alloc]init];
splitViewController.viewControllers=[NSArray arrayWithObjects:self.tabbarController,self.detailNav,nil];
splitViewController.delegate = self.detailViewController;
[self.window addSubview:splitViewController.view];
[self.window makeKeyAndVisible];
This seems to work fine. When app goes into portrait mode a 'Browse' button is added to the navigation bar. Clicking this button shows the hidden view along with the tabs perfectly fine. I can switch between the tabs and work on the views displayed in the popover. When tapped on other than popover area the popover is dismissed as expected.
The two things that are not working are
The popover has to show up on its own each time app switches to portrait mode without the user having to select the button added to nav bar
On some occasions I need to dismiss the popover programatically.
I have tried foll code :
- (void)splitViewController: (UISplitViewController*)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem*)barButtonItem forPopoverController: (UIPopoverController*)pc {
barButtonItem.title = #"Browse";
[[self navigationItem] setLeftBarButtonItem:barButtonItem];
self.appDelegate.rootPopoverButtonItem = barButtonItem;
self.appDelegate.splitViewPopover = pc;
[self.appDelegate.splitViewPopover presentPopoverFromBarButtonItem:self.appDelegate.rootPopoverButtonItem permittedArrowDirections:UIPopoverArrowDirectionUp animated:NO];
}
This adds a black translucent popover each time the orientation changes. How do I make it show what the browse button shows when it is clicked?
The usual dismissPopvoerAnimated does not seem to work here.
Any help is appreciated.
Using performSelector:withObject:afterDelay: fixed the issue
I've got a fullscreen view inside of a UINavigationController. When I attempt to present a modal view on top of it, the UINavigationBar changes to opaque, pushing down the content, before the modal view animates. How do I keep this from happening?
ContextMenuViewController *cmvc =
[[ContextMenuViewController alloc] initWithNibName:nil bundle:nil];
[cmvc setDelegate:self];
UINavigationController *navControl =
[[UINavigationController alloc] initWithRootViewController:cmvc];
[cmvc release];
[navControl.navigationBar setBarStyle:UIBarStyleBlackTranslucent];
[self.navigationController presentModalViewController:navControl animated:YES];
[navControl release];
[[UIApplication sharedApplication]
setStatusBarStyle:UIStatusBarStyleBlackTranslucent
animated:NO];
The UINavigationController's root view does not have any transparency (status bar nor UINavigationBar), only the pushed controllers have the transparency.
I created a video of the issue: http://www.youtube.com/watch?v=KSFvzTR5Ejk
Example source at: http://cl.ly/7lu2
I tried your code in a very small test project and didn't see the issue you describe. I suggest you do the same thing. Start with the Navigation-based Application template. In the main nib, check the navigation controller's Wants Full Screen and Resize View From Nib, and make its nav bar transparent. In the root view controller's nib, put a button that you can respond to, set up the action, and paste in your code. Create the ContextMenuViewController class; there is no need to give it a nib.
Run the app and press the button. The modal view slides into place, with a transparent nav bar, without affecting the transparency of the nav bar that already exists and without moving the existing content.
So now, once you've proved to yourself that it works in this simple project, it's just a question of locating what you're doing different from that in the real project.
Try setting the bar styles during viewDidLoad for the root View Controller.
HERE YOU GO )
OptionsViewController *detailViewController = [[OptionsViewController
alloc] initWithNibName:#"OptionsViewController" bundle:nil];
UINavigationController *optionsController = [[UINavigationController
alloc] initWithRootViewController:detailViewController];
[detailViewController release];
optionsController.navigationBar.translucent = YES;
optionsController.navigationBar.opaque = YES;
optionsController.navigationBar.tintColor = [UIColor clearColor];
optionsController.navigationBar.backgroundColor = [UIColor
clearColor];
optionsController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:optionsController animated:YES];
[optionsController release];
I have app with UItabBarTemplate with navigation controller.
On selecting tab bar ViewControllerA is shown which on button touch pushes UIPieChartTabController which inherits "UIViewController".
Now I want another tab bar in UIPieChartTabController.
so in viewDidLoad of UIPieChartTabController
- (void)viewDidLoad {
[super viewDidLoad];
UIView *contentView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
contentView.backgroundColor = [UIColor whiteColor];
self.view = contentView;
[contentView release];
UITabBarController *tabbar= [[UITabBarController alloc] init];
tabbar.view.frame = CGRectMake(0, 0, 320, 460);
piechartViewController *pr=[[piechartViewController alloc]init];
pr.tagInAction=1;
pr.title=#"Type";
pr.tabBarItem.image=[UIImage imageNamed:#"trend.png"];
pr.sDate=sDate;
pr.nDate=nDate;
piechartViewController *pr1=[[piechartViewController alloc]init];
pr1.title=#"category";
pr1.tagInAction=4;
pr1.sDate=sDate;
pr1.nDate=nDate;
piechartViewController *pr2=[[piechartViewController alloc]init];
pr2.title=#"paidWith";
pr2.tagInAction=3;
pr2.sDate=sDate;
pr2.nDate=nDate;
//tabbar.tabBar.delegate=self;
//this gave me error
ExportRep *pr3=[[ExportRep alloc]init];
pr3.tabBarItem.image=[UIImage imageNamed:#"database.png"];
pr3.title=#"Export Expenses";
[tabbar setViewControllers:[NSArray arrayWithObjects:pr,pr1,pr2,pr3,nil]];
[self.view addSubview:tabbar.view];
[pr release];
[pr1 release];
[pr2 release];
}
This piece of code worked but now when I select tab of viewController ExportRep type I tried
[self presentModalViewController:objMFMailComposeViewController animated:YES];
but navigationController of objMFMailComposeViewController hides behind navigationController of view that is presenting objMFMailComposeViewController.
Also viewWillAppear viewDidAppear of all the view controller which are bound to tab bar never gets called.
But none of this problem occurs for tabbar and viewcontroller which gets created by UITabbarTemplate.
Why Is it so? Whats wrong when I create Tab bar?
placing another tabBar within a tabbarVC, is not recommended. Why not use a UIToolBar to do the swapping of Views in your PieChartVC instead?
-apart from that, the reason your code doesn't call viewWillAppear,viewDidAppear is because of this:
[tabbar setViewControllers:[NSArray arrayWithObjects:pr,pr1,pr2,pr3,nil]];
[self.view addSubview:tabbar.view];
here only loadView of those prs will be called.
the viewControllers you assign to the tabBars should instead be wrapped around UINavigationControllers.
So something like this instead would do the trick
UINavigationController *nc1 = [[UINavigationController alloc]initWithRootViewController:pr];
[nc1.view setFrame:CGRectMake:("the frame in which you wnt prs to be displayed")];
[pr.view setFrame:nc1.view.frame];
. // similarly assign NavControllers for all prs
.
.
.
[tabbar setViewControllers:[NSArray arrayWithObjects:nc,nc1,nc2,nc3,nil]];
[self.view addSubview:tabbar.view];
The reason why new view which is being presented modally got its navigation bar hidden lies in [self.view addSubview:tabbar.view];
so it got room to present its view only in parent controllers view thus got cut its navigation bar.
so to hack it I kept tab selected and instead of presenting it in selected view controller,have presented it in main view controller only.
So, I'm having some issues with my implementation of the Three20 TTLauncherView. I am using their code, not a fork (although I have heard of rodmaz's version), and I can't get it to work properly. This is what my app looks like.
alt text http://img709.imageshack.us/img709/8792/screenshot20100715at409.png
I removed the icon image, that's not the issue. The issue is, at the top there is no Navigation bar at all, and I believe also causes the white strip at the bottom, which appears to have the same dimensions as a Nav Bar. I've spent quite a while looking through their code and can't figure this out at all. It looks like their Navigation bar (as seen in their Catalog example app) stems from the TTTableViewController, or something further up. However, my app starts like the Facebook app does, not into a table, but into the TTLauncherView. So... how do I get the Navigation bar into my TTLauncher view, if it goes "App Delegate -> TTLauncherView Subclass"
Thanks for your help!
Edit:
Added the code I used. I put this in my app delegate, wrapping my first view with the UINavigation Controller, and it worked just as I wanted!
MainViewController *aController = [[MainViewController alloc] initWithNibName:nil bundle:nil]; //my Main view
self.mainViewController = aController;
[aController release]; //release for Memory Management
self.mainViewController.view.frame = [UIScreen mainScreen].applicationFrame;
UINavigationController *navigationController = [[UINavigationController alloc] init];
[navigationController pushViewController:self.mainViewController animated:NO]; //Gets the main view on the screen
[window addSubview:navigationController.view];
You simply wrap the view with a navigation bar before you push the new view. As an example, here is a snippet of my code where I present a modal view controller with a navigation bar.
- (IBAction) showNewNavView: (id) sender
{
// Present it as a modal view and wrap the controller in a navigation controller to provide a navigation bar for the Edit and Save buttons
ModalViewController *addController = [[ModalViewController alloc] initWithNibName:#"ModalViewController" bundle:nil];
addController.delegate = self;
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addController];
navigationController.navigationBar.barStyle = UIBarStyleBlackTranslucent;
[self presentModalViewController:navigationController animated:YES];
[navigationController release];
[addController release];
}
If you want to add any buttons or set the title of it, you need to do that in the viewDidLoad method of the view that you are pushing (i.e. your TTLauncher view)
I'm writing a custom UITabBarController so I can fully control appearance of the tab bar. I've got it all working so I have an array of view controllers that it handles.
The controller has a main view which fills the screen, and inside it it has a UIView at the bottom for the tab bar. That tab bar view has a button for each view controller. When buttons are pressed I add the view controller's view to the main view, and set it's frame so that it doesn't cover the tab bar view:
controller.view.frame = CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height - kTabBarHeight);
This all works fine, and I can flick between the view controllers just fine. However, when I present a modal view controller, and then dismiss it, the current view controller's view becomes full screen and covers up my tab bar! I've tried setting the autoresizing masks to not resize, but is keeps happening.
I have also tried adding the view controllers view's to the bottom (below the tab bar) by using:
[self.view insertSubview:controller.view atIndex:0];
But when I do that, the tab bar is even visible above any modal views! Which is strange. I think there's something I'm not understanding so I would be grateful if someone can explain what I'm missing!
Thanks,
Mike
Try setting
controller.view.frame = CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height - kTabBarHeight);
in the controller's viewWillAppear method
Try this out. I think you want dynamic view controllers within tab bar controller.
-(void)applicationDidFinishLaunching:(UIApplication *)application {
// Add the tab bar controller's current view as a subview of the window
tabBarController.delegate=self;
tabBarController=[[UITabBarController alloc] init];
mainDashBoard=[[DashBoard alloc] initWithNibName:#"DashBoard" bundle:nil];
mainSearchView=[[SearchView alloc] initWithNibName:#"SearchView" bundle:nil];
mainMoreView=[[MoreView alloc] initWithNibName:#"MoreView" bundle:nil];
UINavigationController *nvCtr0=[[[UINavigationController alloc] init] autorelease];
UINavigationController *nvCtr1=[[[UINavigationController alloc] initWithRootViewController:mainDashBoard] autorelease];
UINavigationController *nvCtr2=[[[UINavigationController alloc] initWithRootViewController:mainSearchView] autorelease];
UINavigationController *nvCtr3=[[[UINavigationController alloc] initWithRootViewController:mainMoreView] autorelease];
UINavigationController *nvCtr4=[[[UINavigationController alloc] init] autorelease];//[[[UINavigationController alloc] initWithRootViewController:nil] autorelease];
tabBarController.viewControllers=[NSArray arrayWithObjects:nvCtr0,nvCtr1,nvCtr2,nvCtr3,nvCtr4,nil];
nvCtr0.tabBarItem.enabled=NO;
nvCtr4.tabBarItem.enabled=NO;
[window tabBarController.view];
}
I've managed to find a better way to control the appearance of the tab bar by simply inserting subviews to the top of the tab controllers tab bar. It's worked a treat!