Full disclaimer- I'm pretty new to iOS. I created a tableview with custom cells using the storyboard with a navigation controller as the initial entry point, and my tableview as the navigation controller's root view. When I run the app in the simulator, it seems as though everything is oversized/zoomed in, though my storyboard looks like this:
I've tried with iPad and iPhone and in both devices my story board doesn't pop up properly. I instantiate my root view controller thus:
- (BOOL)application:(UIApplication *)applicationdidFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
//get a pointer to my main storyboard
UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:#"Main" bundle:[NSBundle mainBundle]];
//instantiate my nav controller + item controller through the storyboard
UINavigationController *nav = [mainStoryBoard instantiateViewControllerWithIdentifier:#"navStoryBoard"];
ItemsViewController *ivs = [mainStoryBoard instantiateViewControllerWithIdentifier:#"tableStoryBoard"];
UIWindow *window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window = window;
self.window.backgroundColor = [UIColor clearColor];
self.window.rootViewController = nav;
[self.window makeKeyAndVisible];
// Override point for customization after application launch.
return YES;
}
Why won't my tableView appear in the correct size when I run my app? Am I instantiating my views incorrectly?
From the screenshot it looks like you are using Size classes (which is usually enabled by default). And hence the zoomed or scaled up behaviour.
If you are developing for a particular form factor, you may disable the "Use Size Class" property of the View Controller. More details here: https://developer.apple.com/library/ios/recipes/xcode_help-IB_adaptive_sizes/chapters/EnablingAdaptiveSizeDesign.html
However, if you want your UI to be scalable on different form factors - you should keep this checked and use Autolayout constrains for your Table View. More details here: https://developer.apple.com/library/ios/recipes/xcode_help-IB_auto_layout/chapters/UnderstandingAutolayout.html
Related
To display mini view with controls for chromecasting video in app , root view need to be changed progrmatically. the below code need to be added to the storyboard.
// Wrap main view in the GCKUICastContainerViewController and display the mini controller.
UIStoryboard *appStoryboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UINavigationController *navigationController =
[appStoryboard instantiateViewControllerWithIdentifier:#"MainNavigation"];
GCKUICastContainerViewController *castContainerVC =
[[GCKCastContext sharedInstance] createCastContainerControllerForViewController:navigationController];
castContainerVC.miniMediaControlsItemEnabled = YES;
self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
self.window.rootViewController = castContainerVC;
But i made tabbar controller app , rootview intiated from storyboard. can somebody help me to change or modify the rootview to get miniView (container view) in tabbar application?
Changing root view when using tab view does not look mandatory thing to me just try adding the complete navigationController object itself on the tab.
By this way on any one of the tab is will have your mini view with controls.
I am new to IOS development . i got a open source project and loaded in xcode and it is running good.
the project is based on webview and loading url.
what i want to do is add a new screen at the launch of application which takes three inputs from textfields and on submit of button it should send the data to next screen which is a webview and currently it is being loaded first .
1) how can i add new view controller which launches first at launch of app where i can input textfields and click on button to move to second screen
2) get the data from first screen and give to the load url to load the url.
i have taken project files from here :
https://github.com/paulirish/iOS-WebView-App
viewcontroller option on right side doesnt have the option is initial view
i am using xcode 6.2
I think you are loading viewcontroller from code like we did in older versions. I hope this helps you.
In this code you can simply change MainViewController to your own view.
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
MainViewController* viewC =[[MainViewController alloc] initWithNibName:#"MainViewController" bundle:nil];
UINavigationController* navC = [[UINavigationController alloc] initWithRootViewController:viewC];
self.window.rootViewController = navC;
[self.window makeKeyAndVisible];
You will have to create new UIViewController with your three textFields and then set this UIViewController as Initial View Controller from storyboard like this:
After doing this get data from your textfields like:
NSString *text1Data = self.yourtextField.text;//Repeat for all text fields.
After getting data make three variables in your webViewController and assign thse values to them.
Suppose WebVC is yoour WebViewController then you can pass data and go to web viw like this:
WebVC *vc = [self.storyboard instantiateViewControllerWithIdentifier:#"your_WebVc_identifier"];
vc.text1DataFromFirstVC = text1Data; //repeat for all three variables
//go to web view controller
[self.navigationController pushViewController: vc animated:YES]
EDIT:For Non Storyboard use following code from your AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
ViewController *Vc = [[ViewController alloc]initWithNibName:#"ViewController" bundle:nil];
self.window.rootViewController = Vc;
[self.window makeKeyAndVisible];
return YES;
}
I am trying to setup a splitviewcontroller using storyboards. The code below is what I have so far. However, it is showing a black screen. I have a storyboard name Main. I have two viewcontrollers in the storyboard. I read how to do this from an article, but can't get it to work. I must be missing something small. Any help is appreciated.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
UIStoryboard *sb = [UIStoryboard storyboardWithName:#"Main"
bundle:nil];
ViewController *firstVC = [sb instantiateViewControllerWithIdentifier:#"ViewController"];
ViewController1 *secondVC = [sb instantiateViewControllerWithIdentifier:#"ViewController1"];
CGRect frameFirstVC = firstVC.view.frame;
frameFirstVC.size.width = 100;
CGRect frameSecondVC = secondVC.view.frame;
frameSecondVC.size.width = 100;
UISplitViewController* splitVC = [[UISplitViewController alloc] init];
splitVC.viewControllers = [NSArray arrayWithObjects:firstVC, secondVC, nil];
[self.window addSubview:splitVC.view];
[self.window makeKeyAndVisible];
return YES; }
You shouldn't add the split view controller's view as a subview of your window directly. Instead, set the window's rootViewController property:
self.window.rootViewController = splitVC;
In addition to configuring the view hierarchy, this sets up additional state and layout information for the app to properly display and use the split view controller.
(I should point out that instead of writing any of this code, you could put the split view controller in your storyboard, mark it the initial view controller, then use that storyboard as your app's main interface file. That's a bit of a bigger change, though.)
I'm following the advice of this question in order to define my initial view controller at runtime, instead of always being the same based off of the Storyboard property.
This is my didFinishLaunching method:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UINavigationController *compactNavigationController = [mainStoryboard instantiateViewControllerWithIdentifier:#"CompactNavigationController"];
self.window.rootViewController = compactNavigationController;
[self.window makeKeyAndVisible];
CompactPostsViewController *controller = (CompactPostsViewController *)compactNavigationController.topViewController;
controller.managedObjectContext = self.managedObjectContext;
return YES;
}
And I've unchecked "Is Initial View Controller" in my Storyboard, and I've removed "Main" from the default Storyboard in my app's info.
But when I launch the app I get a completely black screen. What am I doing wrong?
Your window is nil because you never created it. You need to add this line,
self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
The window is created for you when you have the "Main storyboard base name" entry in your info.plist, but if you remove that, then you have to create the window yourself.
check your linkings in your storyboard(by right click on the tableview controller).This happens mostly when you not linked your tableview controller properly.
I wanted to know how to set up the app delegate in Xcode 5 since it's different than it was in previous versions. I want the generic view controller files (ViewController.h and .m) to be the files that control the rootViewController I set in my app delegate. Does this happen automatically or do you need to do something in the code? This is how I set up my appDelegate.m
*(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
CGRect viewRect = [[UIScreen mainScreen]bounds];
self.window = [[UIWindow alloc]initWithFrame:viewRect];
UIViewController *viewController = [[UIViewController alloc]init];
self.window.rootViewController = viewController;
[self.window makeKeyAndVisible];
If I wanted my rootView Controller to be a table view controller or something else, would I need to embed it in a basic VC first?
To do it programmatically you can set it to be a UITableViewController since it is a subclass of UIViewController. If you want to use the already create ViewController just change the subclass in the .h file from UIViewController to UITableViewController and add the tableview delegates and datasources into the .m.
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
UIViewController *mainViewController = [storyboard instantiateInitialViewControllerWithIdentifier:#"myViewController"];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.rootViewController = mainViewController;
[self.window makeKeyAndVisible];
or if you want to just draw the view in the view controller create a class and do this
MyViewController *viewController = [[MyViewController alloc]init];
self.window.rootViewController = viewController;
If you are wanting to set your root view via storyboards you can just check the __Is Initial view controller` option
If I wanted my rootView Controller to be a table view controller or something else, would I need to embed it in a basic VC first?
No.
You can set any UIViewController class to be the rootViewController. I am assuming you are building your viewController hierarchy in code, and you are not using InterfaceBuidler. Although also with Interface builder, you can use any viewContorller as the rootviewcontroller, either using storyboards or plain xibs.