Noobie so bear with me.
I've have been following the O'Rielyy Learning iPhone Programming and various threads on here to build my first iPhone App. So far so good, but the final stumbling block at the projects end is getting the App to autorotate (the beta using only uiwebviews was rejected for not auto-rotating)
I have the mail App delegate, which adds a UITabBarController
// myNewsUKDelegate.h
#interface myNewsUKDelegate : NSObject <UIApplicationDelegate, UITabBarControllerDelegate> {
UIWindow *window;
UITabBarController *tabBarController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet UITabBarController *tabBarController;
#end
// myNewsUKDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Add the tab bar controller's view to the window and display.
[self.window addSubview:tabBarController.view];
[self.window makeKeyAndVisible];
return YES;
}
There is are .h and .m files for tabBarController - I added all the UINavigationControllers in IB, which in turn add a UITableView
See image at http://flatearth.co.uk/nib.png (too noob to post images in questions!)
From my reading I understand that the issue is the UITabBarController I added to the main view needs to be 'subclassed' and have this code added.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return YES;
}
The next view down/in/subclassed (whatever the correct terminology is), which has .h and .m files is the FirstViewController which adds the table view, this has shouldAutorotateToInterfaceOrientation already set.
#interface FirstViewController : UIViewController <UITableViewDataSource, UITableViewDelegate> {
UITableView *tableView;
NSArray *userList;
}
#property (nonatomic, retain) IBOutlet UITableView *tableView;
#property (nonatomic, retain) NSArray *userList;
#end
#implementation FirstViewController
#synthesize tableView;
- (void)viewDidLoad {
[super viewDidLoad];
// I tried adding
self.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
// lots of other code ; )
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return YES;
}
So the problem appears to be that when [self.window addSubview:tabBarController.view]; adds the tab bar it doesn't add the shouldAutorotateToInterfaceOrientation returning YES bit.
It appears that I need to add a tabBarController subclass, with the shouldAutorotateToInterfaceOrientation in it. So I read up and tried this, as suggested on the interwebs...
// tabBarController.h
#import <UIKit/UIKit.h>
#interface tabBarController : UITabBarController {
}
#end
// tabBarController.m
#import "tabBarController.h"
#implementation tabBarController
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return YES;
}
#end
and adding
#import "tabBarController.h"
to myNewsUKDelegate.m
But that fails with "error: accessing unknown 'view' class method" at the
[self.window addSubview:tabBarController.view];
line in myNewsUKDelegate.m
Further searching hasn't produced anything helpful and my recent Xcode knowledge has now ran dry : ( Any help appreciated.
From my reading I understand that the issue is the UITabBarController I added to the main view needs to be 'subclassed' and have this code added.
No, you don't need to do that. The tab bar controller determines if it supports a specific interface orientation or not by asking all its child controllers if they support this orientation. In your case, these seem to be navigation controllers, which in turn ask their current child controller if it supports the orientation.
In other words, you have to make sure that all your custom view controllers return YES for the desired interface orientation.
You don't need a subclass, you need a Category on UITabBarController. Basically you create a file called UITabBarController + Autoresize.h (and .m)
In the .h:
#import <UIKit/UIKit.h>
#interface UITabBarController (Autoresize)
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation;
#end
in the .m:
#import "UITabBarController + Autoresize.h"
#implementation UITabBarController (Autoresize)
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
//do custom checks here if you only want to autorotate it in certain views or whatever
}
#end
but as the other poster pointed out, ALL the parent views of the view you wish to rotate must support rotation.
Related
I am trying to convert my iPad app from using a Tab Bar Controller as its Root View to using a Split View Controller for it. My code in my AppDelegate.h is:
#class RootViewiPad;
#class WebViewController2;
#interface AppDelegate : NSObject <UIApplicationDelegate, UISplitViewControllerDelegate> {
UIWindow *window;
UISplitViewController *splitViewController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet UISplitViewController *splitViewController;
#end
The .m is:
#import "AppDelegate.h"
#import "WebViewController2.h"
#implementation AppDelegate
#synthesize window;
#synthesize splitViewController;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window.rootViewController = self.splitViewController;
[self.window makeKeyAndVisible];
return YES;
}
I use IB to set all this up, and I Added a SplitViewController in the MainWindow, and connected the AppDelegate Connection for SplitViewController to the SplitViewController I added. Under the Navigation Controller in the SplitViewController I set the root view to RootViewiPad (The TableView that parses a blog and shows the articles), and then set the other View Controller Class and NIB to WebViewController2 which is where I would like the articles to display once they are clicked on. When I run the app, it compiles, and I can see the WebViewController2 that I built in IB, and when I rotate, the left hand side is the TableView I created. However, I can't figure out how to get it to load the URL in the WebViewController2. Everything I have tried either does nothing, or merely pushes it on the Master Side of the controller.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
WebViewController2 *detailViewController =
self.webViewController2;
detailViewController.webView.scalesPageToFit = NO;
RSSEntry *entry = [_allEntries objectAtIndex:indexPath.row];
[detailViewController.webView loadHTMLString:entry.articleImage baseURL:[NSURL URLWithString:nil]];
}
}
Any suggestions?
When my app is launched the first screen (view) the user sees when my app is launched is a search form without any navigation. Navigation will show up after search process is done and results are ready to be displayed. Where I'm stuck at is the proper way to make it work with the navigation controller.
So, assuming the app name is RealEsateProperties
In RealEsatePropertiesAppDelegate.h:
#import <UIKit/UIKit.h>
#class RealEsatePropertiesViewController;
#interface RealEsatePropertiesAppDelegate : NSObject <UIApplicationDelegate>
{
UINavigationController *ListingNav;
}
#property (nonatomic, retain) IBOutlet UIWindow window;
#property (nonatomic, retain) RealEsatePropertiesViewController *viewController;
// Then I added this line for the navigation
#property (nonatomic, retain) UINavigationController *ListingNav;
#end
and in RealEsatePropertiesAppDelegate.m:
#import "RealEsatePropertiesAppDelegate.h"
#import "RealEsatePropertiesViewController.h"
#synthesize window=_window;
#synthesize window=_viewController;
#synthesize ListingNav;
#implementation RealEsatePropertiesAppDelegate
- (BOOL)application:(UIApplication *)application didFinishLanchingWithOptions:(NSDictionary *)launchOptions
{
self.window.rootViewController = self.viewController;
// Iadded the following 4 lines to try making the navigation thing work without showing any navigation bar on the first screen (that is the search form)
self.ListingNav = [[UINavigationController alloc] initWithRootController:self.viewController];
self.ListingNav.navigationBarHidden = YES;
[self.window addSubView:ListingNav.view];
[self.window makeKeyAndVisible];
return YES;
}
#end
Am I doing anything wrong ?
Thx for helping,
Stephane
You need to create/alloc your RealEsatePropertiesViewController ?
viewController = [[RealEsatePropertiesViewController alloc] init];
When my app first starts, it shows a main page to log in to Facebook. Then, it goes to the UITabBarController. The code that I have in my app delegate is the following:
//this is the .h
#interface NMeAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
MainViewController *controller;
UITabBarController *tabBar;
}
#property (nonatomic, retain) IBOutlet UITabBarController *tabBar;
#property (nonatomic, retain) MainViewController *controller;
#property (nonatomic, retain) IBOutlet UIWindow *window;
#end
//this is the .m of the app delegate
#import "NMeAppDelegate.h"
#implementation NMeAppDelegate
#synthesize window;
#synthesize tabBar;
#synthesize controller;
#pragma mark -
#pragma mark Application lifecycle
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
controller = [[MainViewController alloc] init];
[window addSubview:tabBar.view];
[window addSubview:controller.view];
[window makeKeyAndVisible];
return YES;
}
Inside of MainViewController, I actually have a UserInfo object, which has all of the information that I need for the UITabBarController. The problem is that after getting this info in the UITabViewController, how do I pass this UserInfo to the UITabBarController` or possible the ViewController that is inside the UITabBarController so they were able to access this UserInfo? How to do this?
I hope my question makes sense.
you need to have an instance of your UserInfo object available to the tab bar controller. probably pass it into a instance variable of type UserInfo in your UItabBarController/each view controller whenever you transition into the specified controller.
edit: you should really have this passed into the view Controller it needs to be in (since it doesn't appear you have a custom UITabBarController subclass), or you could use a shared UserInfo variable in your app delegate to keep up with the information.
But as the commenter said, the question is not very clear at all and i could be completely misunderstanding what you want to do.
Hope that helps.
I'm creating an app with one UIViewController and many UIViews. I have MainViewController with a UIView underneath it that displays when loaded up and a few other UIViews all in the MainWindow.xib. How do I go about switching from one View to the next?
Update:
Thanks for the reply.
I have added MainViewController to my appDelegate.
On FinishedLaunching: [window addSubview:[viewController view]];
That View Controller has a function in it called goToNextPage.
-(IBAction)goToNextPage:(id)sender{
[self.view removeFromSuperview];
[self.view addSubview:tableOfContents];
}
In Interface Builder I have that View Controller added to MainWindow.xib. Under that View Controller I have a UIView (called Cover) that loads as it's child on startup and another UIView (eventually many) named TableOfContents that is on its own.
I tried to post an image of my MainWindow.xib here but apparently my Reputation isn't high enough.
The UIView Cover has a button on it that is linked to the goToNextPage function.
When I hit the button the page goes blank as if the one view is successfully being removed but the next is not being loaded.
How do I get the goToNextPage function to switch the preloaded UIView Cover with the other UIView called TableOfContents?
Another Edit:
BookTest6AppDelegate.h:
#import <UIKit/UIKit.h>
#class MainViewController;
#interface BookTest6AppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
IBOutlet MainViewController *viewController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet MainViewController *viewController;
#end
BookTest6AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
[window addSubview:[viewController view]];
[window makeKeyAndVisible];
return YES;
}
MainViewController.h
#import <UIKit/UIKit.h>
#class TableOfContents;
#interface MainViewController : UIViewController {
IBOutlet TableOfContents *tableOfContents;
}
#property (nonatomic, retain) IBOutlet TableOfContents *tableOfContents;
-(IBAction)fGoToTableOfContentsController:(id)sender;
-(IBAction)fGoToNextPageController:(id)sender;
#end
MainViewController.m
#import "MainViewController.h"
#import "TableOfContents.h"
#implementation MainViewController
#synthesize tableOfContents;
-(IBAction)fGoToTableOfContentsController:(id)sender{
[self.view removeFromSuperview];
[self.view addSubview:self.tableOfContents];
}
-(IBAction)fGoToNextPageController:(id)sender{
}
My UIView Classes basically just initiate buttons that link to the functions defined in MainViewController.h.
First you need to know when switching from one to another.
Then you say it to your MainController and addSubView to the mainController.view an another view.
Maybe if you give us more informations or code we could help you a little more :-)
Good Luck
Vincent
Edit :
[self.view removeFromSuperview];
Here you are removing the window view. I think it's not the better way ^^ Try
[ viewController.view removeFromSuperview ]; :-)
Does it work better ?
Edit :
Edit bis : han, it's my fault. You need to remove controller and add another one in the app delegate and not in your mainController (you could do it too, but no with your actual code).
You have two options :
1°) Declare all your controllers in your app delegate.
2°) Declare all your controllers in one main controller. But the main controller would be here to "control" others one.
I followed an example from "Beginning iPhone 3 Development" which puts the code for the main view controller, a Tab Bar, in the delegate method. Is this the correct place to put this or should it be in a separate .h and .m file? All my subviews are in separate files so I'm wondering if I should have my tab bar view controller code in a separate file also.
Also, for the subviews I call ViewDidLoad as normal but there is no ViewDidLoad in the delegate method, I guess because it's of type NSObject and not UIViewController. Should I change the delegate to a type UIViewController so I can call ViewDidLoad?
Thanks, code samples of my existing app are below.
Header file for Delegate:
#import <UIKit/UIKit.h>
#interface MyAppDelegate : NSObject <UIApplicationDelegate, UITabBarControllerDelegate> {
UIWindow *window;
UITabBarController *rootController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet UITabBarController *rootController;
#end
Beginning of Delegate implementation file
#import "MyAppDelegate.h"
#implementation MyAppDelegate
#synthesize window;
#synthesize rootController;
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Add the tab bar controller's current view as a subview of the window
[window addSubview:rootController.view];
[window makeKeyAndVisible];
}
Is this the correct place to put this or should it be in a separate .h and .m file?
Should I change the delegate to a type UIViewController so I can call ViewDidLoad?
no this is your initial load point, not a view controller. Even if you change its type, the view did load method will not be called, the app delegate is not a view controller. It is here you load your initial view controller. UITabbar (according to the doco) "This class is not intended for subclassing." see here. (so no .h and .m file, what would you derive from?) you should not need to subclass, as you will get your viewdidload method for each of the views you put in your tab bar.