Build error after I localized Info.plist
ios,objective-c,xcode,swift,localization
Roll back those changes, add a InfoPlist.strings file to your project, localize it and then add the needed keys to it. For example: "CFBundleDisplayName" = "App display name"; "CFBundleName" = "App bundle name"; ...
Override UITabBarController Icon Selection
ios,objective-c,uitabbarcontroller
UITabBarControllerDelegate has a delegate method - tabBarController:shouldSelectViewController:, just implement it and check if user is logged in or not. e.g. - (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController { if (isLogin) { return YES; } else{ //show your view controller here return NO; } } You can also check which view controller has...
Characters and Strings in Swift
ios,string,swift,unicode,character
When a type isn't specified, Swift will create a String instance out of a string literal when creating a variable or constant, no matter the length. Since Strings are so prevalent in Swift and Cocoa/Foundation methods, you should just use that unless you have a specific need for a Character—otherwise...
Regular expression to get url in string swift
You turn off case sensitivity using an i inline flag in regex: (?i)https?:\\/.* See Foundation Framework Reference for more information on available regex features. (?ismwx-ismwx) Flag settings. Change the flag settings. Changes apply to the portion of the pattern following the setting. For example, (?i) changes to a case insensitive...
NSString to NSDate doesn't work
ios,objective-c,nsdateformatter
You have to set the date format as the string NSString *myDate = @"06/18/2015 8:26:17 AM"; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"MM/dd/yyyy h:mm:ss a"]; NSDate *date = [dateFormatter dateFromString:myDate]; //Set New Date Format as you want [dateFormatter setDateFormat:@"dd.MM. HH:mm"]; [dateFormatter setLocale:[NSLocale localeWithLocaleIdentifier:@"en_US"]]; NSLog(@"%@",[dateFormatter stringFromDate:date]); ...
Getting video from Asset Catalog using On Demand ressources
ios,xcode,xcode7,ios9,asset-catalog
I think its not possible to use Asset Catalog for video stuff, Its simplify management of images. Apple Documentation Use asset catalogs to simplify management of images that are used by your app as part of its user interface. An asset catalog can include: Image sets: Used for most types...
Admob interstitial ad delegate
GADInterstitial delegate is a weak stored property, so you should create a stored property in your class: var adDelegate : AdDelegate? // to store the delegate func createInterstitial()->GADInterstitial { var interstitial = GADInterstitial() interstitial.adUnitID = "ca-app-pub-6938332798224330/6206234808"; adDelegate = AdDelegate() interstitial.delegate = adDelegate //delegate is weak so we need to store...
coordinate deprecated as of iOS 7
Replace the following in your code var latestLocation: AnyObject = locations[locations.count - 1] with the following. var latestLocation = locations.last as! CLLocation ...
Using sockets to build real time chat for iOS?
ios,objective-c,sockets,chat,real-time
Assuming you've got your server side things setup, you can use Square's Socket Rocket to implement the client side https://github.com/square/SocketRocket If you're using socket.io at the backend, there are plenty of iOS libraries available for those as well. SIOSocket is one such library....
How can I convert an Int array into a String? array in Swift
ios,arrays,swift,casting,type-conversion
Airspeed Velocity gave you the answer: var arr: [Int] = [1,2,3,4,5] var stringArray = arr.map { String$($0) } Or if you want your stringArray to be of type [String?] var stringArray = arr.map { Optional(String$($0)) } This form of the map statement is a method on the Array type. It...
SpriteKit collision angle of line and circle is odd
The ball gets reflected symmetrically to its angle of approach assuming it's a completely elastic collision. That means, to get the behavior you are looking for, the ball would need to approach exactly from one line mid-point to the next without any loss of energy. Sprite Kit's physics engine will...
MFMessageComposeViewControllerDelegate not being called
It's crashing because your handler object is getting released and deallocated right after the call to handler.sendMessage(), and then a delegate callback is attempted on that now-deallocated object when you try to send or hit cancel. The object is getting released and deallocated because nothing is holding a strong reference...
PFUser not unwrapped - swift
Here is explanation: What is an "unwrapped value" in Swift? PFFacebookUtils.logInWithPermissions(["public_profile", "user_about_me", "user_birthday"], block: { user, error in if user == nil { println("the user canceled fb login") //add uialert return } //new user else if user!.isNew { println("user singed up through FB") //get information from fb then save to...
stringByReplacingOccurrencesOfString giving strange error
The Range is not an NSRange, but a Swift range. In this case, you can pass nil to represent the entire String: string = string.stringByReplacingOccurrencesOfString(swearWordPair[0], withString: swearWordPair[1], options: .CaseInsensitiveSearch, range: nil) If you wanted to limit the range, you can create a Range<String.Index> like this: var string = "I laid...
How to draw each a vertex of a mesh as a circle
ios,unity3d,shader,mesh,particle
You can do it using geometry shaders to create billboarding geometry from each vertex on the GPU. You can then either create the circles as geometry, or create quads and use a circle texture to draw them (I recommend the later). But geometry shaders are not extensively supported yet, even...
iOS 9 not opening Instagram app with URL SCHEME
iOS 9 has made a small change to the handling of URL scheme. You must whitelist the url's that your app will call out to using the LSApplicationQueriesSchemes key in your Info.plist. Please see post here: http://awkwardhare.com/post/121196006730/quick-take-on-ios-9-url-scheme-changes The main conclusion is that: If you call the “canOpenURL” method on a...
How to prevent _User table from growing unnecessarily when using PFAnonymousUtils iOS SDK?
You could just add a 'latest_activity' flag into every user and update it when the user uses your app. Then create a BackgroundJob (https://parse.com/docs/js/guide#cloud_code) and remove the anonymous users that are older than ~2weeks? What you could also do is setup Push Notifications in you app and for each user...
animating a view on top of uitableview
In initializeSettingsView() add nibView.setTranslatesAutoresizingMaskIntoConstraints(false). And then in viewDidload add the hight constraint to settingsView constraints.append(NSLayoutConstraint(item: settingsView, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 90.0)) And you do not need to set the position of settingsView, since it will be layout at the right position based on...
type casting in objective-c, (NSInteger) VS. integerValue
NSNumber is a class; NSInteger is just a typedef of long, which is a primitive type. dic[@"count"] is a pointer, which means that dic[@"count"] holds an address that points to the NSNumber instance. NSNumber has a method called integerValue which returns an NSInteger as the underlying value that the NSNumber...
Transferring an Xcode project to another computer with all files/frameworks
ios,xcode,frameworks,transfer,projects
Try transferring everything from plists to the storyboard. I did this with a friend of mine and it only took about 20 minutes for the code to build and run successfully on his own laptop. the biggest issue is going to be transferring the files that Xcode is going to...
Set NSObject property - EXC_BAD_ACCESS
ios,objective-c,exc-bad-access,nsobject
Verify that [dict objectForKey:@"infos"] is not NSNull - Crash can be here. Other code looks OK. Also add -(void)deallocto your object and put a break point there to verify that the object is not being released before the assignment. ...
Change background color of viewcontroller but not top area with clock
ios,user-interface,uiviewcontroller
The "top area with clock" is called a status bar. That bar is transparent and is displayed as the topmost view in a window. This means that nothing can cover the status bar. You can show, hide and change the appearance of the status bar (changing the content from Light...
Is possible to save Realm documentation for offline reading?
android,ios,documentation,realm
If you look at the top of the webpage that you linked it says: Install in Dash. Dash is an app in App Store: https://itunes.apple.com/ro/app/dash-api-docs-snippets/id458034879?mt=12 that let's you view documentation offline....
Best way to save traffic in iOS Parse App
ios,arrays,swift,parse.com,traffic
You can create Parse class for your feed objects. After that create an array column to store objectIds of users who added your feed item to favorit. When you want to find all the objects specific user bookmarked do something like PFQuery *query = [PFQuery queryWithClassName:@"feedObjects"]; [query whereKey:@"favoritesArray" equalTo:@"YOUR USER...
Is it possible to obtain an unique iCloud user ID on cocoa?
Yes, this is possible using CloudKit. You'll need a CKContainer, and you'll ask it to fetch the user record ID. That record ID is unique for your apps, but is also stable for that user this means the same iCloud account will have the same record ID, regardless of which...
Indent second line of UILabel
Use an NSAttributedString for your label, and set the headIndent of its paragraph style: NSMutableParagraphStyle *style = [[NSParagraphStyle defaultParagraphStyle] mutableCopy]; style.headIndent = 14; NSDictionary *attributes = @{ NSParagraphStyleAttributeName: style }; NSAttributedString *richText = [[NSAttributedString alloc] initWithString:@"So this UILabel walks into a bar…" attributes:attributes]; self.narrowLabel.attributedText = richText; self.wideLabel.attributedText = richText; Result:...
Why doesn't a UITableView scroll until I have 2 additional rows?
UIScrollView (from which UITableView inherits) has a alwaysBounceVertical property. If you set this to true, either in code or Storyboard, the table view will be vertically 'scrollable' regardless of how many rows it has.
iOS: Go back to entry point view controller which is not part of navigation controller
ios,uinavigationcontroller,swrevealviewcontroller
Just set window.rootViewController to the login view controller.
How do I use my class in AppDelegate.swift
Make sure that Member is declared in a place that your AppDelegate can "see" it. This concept is called "scope" and is crucial to many programming languages, including Swift. Classes declared inside other classes, for example, are not visible outside that class (unless they're given specific access modifiers). If that...
ios8 Timezone parsing changed?
Setting dateStyle or timeStyle will override any custom dateFormat you have set. Your date string does not conform in any way to NSDateFormatterShortStyle, which is why you are getting nil when trying to convert strings to dates. Furthermore, according to Unicode Technical Standard #35 revision 31, the timezone specifier of...
Is this Swift syntax efficient?
It fires everytime the getter is called. No way this could be optimized away. You might want to keep a preset colors array in sync with the photos property, i.e. change it directly when setting the photos. I also dislike the tight coupling in that place which seems unnecessary. I...
iOS Swift: Sound not playing on iPhone Simulator
ios,iphone,swift,audio,ios-simulator
You just need to move the declaration of your audioPlayer out of your method. Try like this: var audioPlayer:AVAudioPlayer! func playSound() { if let soundURL = NSBundle.mainBundle().URLForResource("doorbell", withExtension: "mp3") { audioPlayer = AVAudioPlayer(contentsOfURL: soundURL, error: nil) audioPlayer.prepareToPlay() audioPlayer.play() } } ...
iOS 8 Swift CS193P Calculator Bug Switch Operation
Your code looks fine, it looks like you accidentally placed a breakpoint in your code, see that blue-looking arrow to the left of the green-highlighted line? Do one of the following: Go ahead and right click that and click Delete Breakpoint Drag and drop that breakpoint into your view controller...
NS_ENUM as property in protocol
ios,objective-c,automatic-ref-counting
You needs to synthesize the property: @implementation Application @synthesize applicationState = _ applicationState; @end or declare the property again: @interface Application : NSObject <ApplicationProtocol> @property (nonatomic) ApplicationState applicationState; @end ...
How to disable the Copy/Hide feature in UIImagePickerController when long pressing a image …?
ios,swift,ios8,uiimagepickercontroller,ios8.3
Its orientation issues. UIImagePickerController wont support landscape mode.. Try this code source :: https://gist.github.com/mkeremkeskin/0ed9fc4a2c0e4942e451 - (BOOL)shouldAutorotate { UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation]; if ( orientation == UIDeviceOrientationPortrait | orientation == UIDeviceOrientationPortraitUpsideDown) { return YES; } return NO; } - (NSUInteger)supportedInterfaceOrientations { return (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown); } -...
Turn a switch Off or On on the basis of another switch state
first of all you need to create IBOutlet of both UISwitch in your header .h file @property (strong, nonatomic) IBOutlet UISwitch *isMale; @property (strong, nonatomic) IBOutlet UISwitch *isFemale; then in your IBAction do as follow. - (IBAction)isMale:(id)sender { if ([sender isOn]) { [_isFemale setOn:NO animated:YES]; } else { // do...
Swift - UILabel from URL
If you don't want to use sessions, you can also use the simpler NSURLConnection Class, something like this: let url = NSURL(string: "https://wordpress.org/plugins/about/readme.txt") let request = NSURLRequest(URL: url!) NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {(response, data, error) in println(NSString(data: data, encoding: NSUTF8StringEncoding)) dispatch_async(dispatch_get_main_queue()) { // Do stuff on the UI thread self.textField.text =...
disable swipe gesture for iCarousel
If you want to disable the swipe gesture then I think are you want to do something like programatically change the image. For very simply disable the user interaction of carousel. If you using storyboard then simple remove checkmark of User Inreaction Enabled If you use by code then following...
What is the best practice add video background view?
First of all, you have two main choices: use a imageView with a GIF or use a video for background with AVPlayer or MPMoviePlayerController. You can find a lot of example for both ways, here's a few: use a GIF for cool background video cover iOS In reply to your...
Extra table cells when UITableViewController is embedded into a Container in a UIViewController
ios,swift,uitableview,uiviewcontroller
You just need to add this to your code in viewDidLoad. self.tableView.tableFooterView = [[UIView alloc]initWithFrame:CGRectZero]; EDIT: sorry i was written in objective -c here is in swift. self.tableView.tableFooterView = UIView(frame:CGRectZero) The tableview will display what appear to be extra blank rows to fill out the bounds if there are not...
UIWebView path depends on previous pressed button Xcode
ios,objective-c,iphone,xcode,uiviewcontroller
in your ClassA.m - (IBAction)button1:(UIButton *)sender{ path=[[NSBundle mainBundle] pathForResource:@"filename" ofType:@"pdf"]; [self performSegueWithIdentifier:@"yourIdentifierName" sender:self]; } - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { if([segue.identifier isEqualToString:@"yourIdentifierName"]) { classB *clsB =segue.destinationViewController; clsB.typeofSelect=path; } } in your class B.h @property (nonatomic, weak) NSString *typeofSelect; in your Class B.m @synthesize typeofSelect;...
Using Core Data with watchOS 2.0
ios,watchkit,watch-os-2,watch-os
Yes, you'll have to maintain two separate stores. If either side is a "read-only" client and the CoreData datastore is small and changes infrequently you could potentially use the transferFile WatchConnectivity API to transfer the whole store each time it changes.
Detect UIImageView Touch in Swift
You can put an UITapGestureRecognizer inside your UIImageView using Interface Builder or in code (as you want), I prefer the first. The you can put an @IBAction and handle the tap inside your UIImageView, Don't forget to set the UserInteractionEnabled to true in Interface Builder or in code. @IBAction func...
Why using ? in this case is not working? (swift)
If you don't know whether your image exists or not, you should use optional binding, try this: func setBGImage(myImageName: String) { if let bgColor = UIImage(named: myImageName) { self.view.backgroundColor = UIColor(patternImage: bgColor) } } If myImage exists, it will assign it to bgColor, in which is assigned to self.view.backgroundColor. or,...
Trying to dismiss a popover view controller with a table view inside of it
ios,objective-c,uipopovercontroller
You have to set the delegate of your AssistanceNeededAtPopOverViewController that pops the controllerview, as the new GlobalPageSideDetailViewController. Here you're setting the delegate of a controller you just instantiate and not the one which poped the controller. ...
Implementing Applovin Ads with Swift & SpriteKit
You likely need to enable "Test Mode" for your app in the AppLovin dashboard in order to force test ads to serve for your area. Please send any questions to [email protected] for further assistance.
Difference between stringByAppendingString and appendString in ios
ios,objective-c,swift,nsstring,nsmutablestring
appendString: is from NSMutableString, stringByAppendingString: is from NSString. The first one mutates the existing NSMutableString. Adds to the end of the receiver the characters of a given string. The second one returns a new NSString which is a concatenation of the receiver and the parameter. Returns a new string made...
drawing views after time intervals
Create this method: -(void) drawViewsEvery5Seconds { if(!lastView)//should be a member variable { lastView = [[UIView alloc] initWithFrame:CGRectMake(0, 580, 16, 25)]; } else { lastView = [[UIView alloc] initWithFrame:CGRectMake(lastView.frame.origin.x+16, 580, 16, 25)]; } lastView.backgroundColor = [UIColor blackColor]; [self.view addSubview:lastView]; [self performSelector:@selector(drawViewsEvery5Seconds) withObject:nil afterDelay:5]; } and then just call [self drawViewsEvery5Seconds]; UPDATE...
Underline in attributed text not working in iPhone 6+
Found a hack !! :( you should write this line before setting up the text, [btnTermOfUse titleLabel].numberOfLines = 0; This will show you the line on device too....
iOS Keyboard “Done” button load action
When the "Return Key" (or "Done") button is tapped, the delegate of your textfield will receive a set of callbacks including textFieldShouldEndEditing:, and textFieldDidEndEditing:. To respond to these, implement a UITextFieldDelegate and execute your action there, i.e. call loginActionButton in one of the delegate methods. Relevant Documentation: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextFieldDelegate_Protocol/#//apple_ref/occ/intfm/UITextFieldDelegate/textFieldDidEndEditing:...
IOS - Adjust cell height based on content
If use AutoLayout the use this code You try to set the UITableView properties estimatedHeight. -(void)viewWillAppear:(BOOL)animated{ _messageField.delegate = self; _tableView.estimatedRowHeight = 65.0; _tableView.rowHeight = UITableViewAutomaticDimension; } Other wise use this UITableView Delegate Method - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return 300; // your dynamic height... } ...
Twilio Client Python not Working in IOS Browser
javascript,python,ios,flask,twilio
Twilio developer evangelist here. Twilio Client uses WebRTC and falls back to Flash in order to make web browsers into phones. Unfortunately Safari on iOS supports neither WebRTC nor Flash so Twilio Client cannot work within any browser on iOS. It is possible to build an iOS application to use...
Present a modal view using fade-in animation
Just set the modalPresentationStyle and modalTransitionStyle properties for the viewController. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; UIViewController *ivc = [storyboard instantiateViewControllerWithIdentifier:@"login"]; [ivc setModalPresentationStyle:UIModalPresentationCustom]; [ivc setModalTransitionStyle:UIModalTransitionStyleCrossDissolve]; [self presentViewController:ivc animated:YES completion:nil]; ...
iOS: What is the callback when tapped on the empty space between keyboard and search bar to dismiss the keyboard when search bar is active
How about -searchBarTextDidEndEditing: in UISearchBarDelegate?
Do I have to use both of these methods?
No, you don't have to use both. Either you go with reloadCell technique or cell updates via beginUpdate and endUpdate. When you are reloading a particular row, internally table view system creates 2 cell and then blends in the new one with. You can remove the beginUpdates and endUpdates and...
After an insert into the UITableView : custom the cell
You need to use UITextField instead of UILabel. When you insert a new cell, set this UITextField's enabled property to true. When loading all the other cells remember to set it to false to disable editing (the same cell maybe used at more than one place)....
How can I show ONLY the date (and not the time) using NSDateFormatter?
var dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "yyyy-MM-dd" dateFormatter.locale = NSLocale(localeIdentifier: @"en_US") let d = NSDate() let s = dateFormatter.stringFromDate(d) ...
how i can solve Image auto resize in iphone 4 5 6 6+
ios,objective-c,iphone,objective
understand the autoresize concept , the following image is the description that how to we use the autoresizing on Left, right , top and bottom. So, I used to think according to this snapshot: Scenario 1: (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight) // it automatically set the width, height, left and bottom: Scenario...
pushviewcontroller doesn't work?
ios,objective-c,pushviewcontroller
Update your AppDelegate.m file with following code self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds]; ExampleViewController *exampleViewController = [ExampleViewController new]; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:exampleViewController]; self.window.rootViewController = navController; //self.window.backgroundColor = [UIColor lightGrayColor]; [self.window makeKeyAndVisible]; The problem is that you are not initializing rootViewController from...
UITabBarViewController doesn't rotate - iOS
ios,uitabbarcontroller,auto-rotation,shouldstartload
Try to override this method, don't call super - (void)viewWillTransitionToSizeCGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator { //[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator]; [self.selectedViewController viewWillTransitionToSize:size withTransitionCoordinator:coordinator]; } ...
Parse: Facebook user unlink and login again creates two user table entries
You need to link the user to a facebook account, the code below does this link for you: if !PFFacebookUtils.isLinkedWithUser(user) { PFFacebookUtils.linkUserInBackground(user, withReadPermissions: nil, { (succeeded: Bool?, error: NSError?) -> Void in if succeeded { println("Woohoo, the user is linked with Facebook!") } }) } From Parse.com documentation: The steps...
Call method after asynchronous request obj-c
ios,objective-c,asynchronous,uiviewcontroller,nsobject
You'll have to 'remember' which UIViewController calls the object. This can be done for instance with a property. in .h @property (nonatomic) UIViewController *viewController; in your .m file @synthesize viewController; Before calling the method, set the property with anObject.viewController = self; Then, you'll be able to call [viewController finishedPost:self]; inside...
Unexpectedly found nil while unwrapping an Optional value - Plist
Seems to be no error in your code, Check that the arrays in plist has the same naming as in your code might be mistaken something with keys. You can check that by right-click on plist and Open-as then choose source code Like : objectForKey("name") called <key>name</key> objectForKey("image") called <key>image</key>...
How to create UITableViewCells with complex content in order to keep scrolling fluent
ios,swift,uitableview,cocoa-touch,ios-charts
What you're trying to do is going to inevitably bump into some serious performance issues in one case or another. Storing all cells (and their data into memory) will quickly use up your application's available memory. On the other hand dequeueing and reloading will produce lags on some devices as...
Call function on Server from iOS app - Objective C
ios,objective-c,json,server,backend
You just need to POST data to your server. Port could be anything you want, should be 80. Host your script with a domain url so that you can make network request publicly. You can try this function: -(NSData *)post:(NSString *)postString url:(NSString*)urlString{ //Response data object NSData *returnData = [[NSData alloc]init];...
Obj-C Instance method returning a instanceType called from Swift - Function produces expected type 'UIImage!' error
If you look at the method you have defined in Objective C image category, it is instance method and you are trying to call it using UIImage class in swift. You can basically use either one of the following two approaches, Either, self.backgroundImageView.image = self.someImage.applyDarkEffect() // notice the method does...
Scaling everything up and down for different devices in UIStoryboard
You can do it by using Aspect Ratio property of AutoLayout. You can follow this tutorial. It gives a very nice explanation on how to scale everything up by using fix aspect ratio. http://simblestudios.com/blog/development/percentage-width-in-autolayout.html...
Beacon / IOS CLLocationManager get current region
ios,swift,cllocationmanager,ibeacon
You can use the locationManager:didDetermineState:forRegion: callback, which tells you if you are either Inside, Outside or Unknown. You can force yourself to get a callback by calling locationManager.requestStateForRegion(region) when your app starts up. See more here: https://developer.apple.com/library/ios/documentation/CoreLocation/Reference/CLLocationManagerDelegate_Protocol/#//apple_ref/occ/intfm/CLLocationManagerDelegate/locationManager:didDetermineState:forRegion:...
ios open call history
You CANNOT do this because there is no available API for doing so and no custom URL ever for opening it directly into that app. So it is NOT possible sorry. I'd also say if you even found a way to do this it would be rejected under: 2.5 Apps...
How to do a “show (e.g Push)” segue programatically without animation?
ios,objective-c,swift,storyboard,segue
What the show (e.g. Push) segue does internally is to call -[UIViewController showViewController:sender:] Calling this method on your view controller itself, will trigger the appropriate way of presenting the view controller you are passing. // Swift self.showViewController(viewControllerToShow, sender: self) // Objective-C [self showViewController: viewControllerToShow sender: self]; The animation can be...
starting to work with iOS push notifications
ios,objective-c,push-notification
You are using the API wrongly. First of all the Push Notification API has changed after iOS 8.0. My answer will assume that you want to still supporting iOS 7.x and later // Checks if the application responds to the API introduced in iOS 8. if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) { //...
Split double-digit NSInteger into Two NSIntegers
You can simply use integer/modulo arithmetic int tensDigit=originalNumber / 10; int onesDigit=originalNumber % 10; ...
It is possible to continuously update the UILabel text as user enter value in UITextField in iOS
ios,objective-c,swift,uitextfield,uilabel
You can register your textField for value change event: [textField addTarget: self action:@selector(textFieldDidChange) forControlEvents:UIControlEventEditingChanged]; and in textFieldDidChange function update your label: - (void)textFieldDidChange { label.text = textField.text; } The function shouldChangeCharactersInRange is needed more for taking desisions whether to allow upcoming change or not...
IOS rightBarButtonItem on UINavigationController in swift
ios,swift,uibarbuttonitem,uinavigationitem
You should set the menu_button_ as the rightBarButtonItem of your viewController rather than the navigationController. Try self.navigationItem.rightBarButtonItem = menu_button_ instead self.navigationController!.navigationItem.rightBarButtonItem = menu_button_ ...
CPU & Memory steadily increase & FPS drops all because of vector movement
I have figured out my own problem. During character movement through touch, the SKScene's -(void)update:(NSTimeInterval)currentTime method runs that characters class method [_player GPS:currentTime]; which tracks speed and distance. Here's the hiccup, that method sets the character texture according to the direction he is facing. Every frame the same texture continues...
UITapGestureRecognizer sender is the gesture, not the ui object
ios,xcode,swift,uigesturerecognizer
You can get a reference to the view the gesture is added to via its view property. In this case you are adding it to the button so the view property would return you you the button. let button = sender.view as? UIButton ...
Can't figure out coder aDecoder: NSCoder
Your custom initializer cannot initialize the immutable property. If you want it to be immutable then, instead of creating a custom initializer, just initialize in one of the required or designated initializer. Like this, class AddBook: UIViewController { @IBOutlet weak var bookAuthor: UITextField! @IBOutlet weak var bookTitle: UITextField! let bookStore:...
Adding Image And title both to UIsegmentControl IOS
ios,uiimage,title,uisegmentedcontrol
The official documentation for -setImage:forSegmentAtIndex: says A segment can only have an image or a title; it can’t have both. There is no default image. So, no, there is no way to do what you want using the image and title properties. However, there are a few options to accomplish...
Slide in an UIButton and push other UIButton when a certain distance is reached
ios,objective-c,uiviewanimation,nslayoutconstraint
Since you would expect the orange button to move at some point, you can't force it to be centered. Lower the priority from 1000 to something lower. This means: I would really like it to be centered, but it doesn't have to be. Add a horizontal distance (leading/trailing) constraint...
iOS search api for Maps
MKLocalSearch with MKLocalSearchRequest is exactly what you are looking for. A basic search can be done as follows: MKLocalSearchRequest *request = [[MKLocalSearchRequest alloc] init]; request.naturalLanguageQuery = @"some address"; MKLocalSearch *localSearch = [[MKLocalSearch alloc] initWithRequest:request]; [localSearch startWithCompletionHandler:^(MKLocalSearchResponse *response, NSError *error) { // do stuff with the response }]; This should put...
Set color CFAttributedStringRef
Based on the comments on the question, you mentioned that the words will never change. You could potentially create a whole bunch of if/else statements checking every word selected against every word in an array. I have put this down as a more efficient alternative and it should hopefully work....
strange behaviour with UINavigationController and autolayout top layout guide
ios,layout,uiscrollview,uinavigationcontroller,autolayout
Simply you add below code self.automaticallyAdjustsScrollViewInsets = NO; in - (void)viewDidLoad method...
How to get time difference based on GMT on Swift
I think your problem is that you are using a calendar with an unset time zone. Your calculation of adding 60*60*24*2 to the current time does not account for the two days when some timezones change to and from daylight savings time. Those days are 23 and 25 hours long....
App crashes when i start typing in uiseachbar in uitableview
It seems that the Predicate is incorrect Try : NSPredicate *resultPredicate = [NSPredicate predicateWithFormat:@"SELF.fullName contains[c] %@", searchText]; ...
Xcode UIWebView not changing page with changed URL
ios,objective-c,xcode,uiwebview
[self.webView reload] - will reload the current page. This is probably happening before the loadRequest has finished. Try removing this line. Also, @joern's comment is correct; the 'event' is the user making a pan gesture. Lose the timer....
Setting delegates (for protocols) only works in prepareForSegue?
ios,objective-c,delegates,protocols
When instantiated from a storyboard, the initWithCoder: methid is called, not the init method. DestinationViewController *destinationVC = [[destinationViewController alloc] init]; destinationVC.delegate = self; is how you do when your controller is not from a storyboard: you init it from the code. After that you have to manually handle the transition...
How can I make both of these UICollectionViews appear in the same View?
You cant use same functions inside a single class. Instead you will need to identify each collection view somehow (by creating outlets or giving them a tag) and then in each function check the collectionview parameter and compare it with your collection views. Example : func collectionView(collectionView: UICollectionView, numberOfItemsInSection section:...
iPod Touch (5th gen) 'Source type 1 not available' crash when using UIImagePickerControllerSourceTypeCamera
First, You should always validate if the resource is available or not, try using: if(IS_IPAD && imagePicker.sourceType == UIImagePickerControllerSourceTypePhotoLibrary){ if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) { // present the popover } else { // HEY, YOU CAN'T USE THIS } } From the official docs: Because a media source may not be present...
try to recover views from custom cell
viewWithTag: is a very fragile way to get a reference to views, and isn't recommended. But what I think is happening is that you need to call viewWithTag: on cell.contentView rather than the cell itself. I'd recommend creating proper IBOutlets to hold your imageview and label....
How can I fix crash when tap to select row after scrolling the tableview?
ios,xcode,swift,uitableview,tableviewcell
Because you are using reusable cells when you try to select a cell that is not in the screen anymore the app will crash as the cell is no long exist in memory, try this: if let lastCell = self.diceFaceTable.cellForRowAtIndexPath(lastIndexPath) as! TableViewCell{ lastCell.checkImg.image = UIImage(named: "uncheck") } //update the data...