Most voted "ios" questions
iOS is the mobile operating system of Apple Inc. originally developed for iPhone, iPod Touch, iPad, Apple Watch and Apple TV (from 2nd). Much of it is shared with OS X, but is optimized for touch-based interfaces. Use this tag when the question is specific to iOS and no other operating system.
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answer57
viewsCore Plot - Initial zoom for bar graph
How do I set the initial zoom based on the maximum value of the X axis and the Y axis? Example: Chart 1: Maximum Values: X = 100; Y = 110; Graph 2: Maximum Values: X = 180; Y = 230; I need the…
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answer73
viewsDesign for iPad and iPhone
Well, I have a problem, I have a project where I have a file Storyboard for iPhone and other file Storyboard for iPad. So I have a UIImageView on Storyboard for iPhone, and another UIImageView on…
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answer60
viewsIs there a Pattern design for iOS to consume data from a web-service?
I’m looking for a Pattern design to help standardize the construction of an iOS app that consumes data from a web service. They could say if it exists and the name of this development model?…
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answer51
viewsHow to insert with content larger than the screen?
How to place more content by storyboard on an iPhone screen without the problems of screen boundaries. For example: I have a screen where I need to place a UIImageView and another UITextView twice…
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answer79
viewsDetermine content to fill Uitableview based on a Uibutton tag
I will explain the scenario to be as clear as possible to understand the question: On the main screen of my app I have 4 UIButton and each of them will open a different screen containing each its…
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answer134
viewsShow images with Cover Flow effect in Objective-C
I am looking for a library that allows to show images with Cover Flow effect. But I’ve seen that the libraries that people have used are "third parties". I wonder if there’s a native Objective-C…
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answer39
viewsiOS Animation does not fix the endpoint when used inside a Uitextfield in the didBegin
I want when the user enters a field UITextField, make an animation simple to move a UIView down, for example. If I put my Up Inside routine works, the same routine in didBegin of UItextfield doesn’t…
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answers1041
viewsApp rejected because of Advertising Identifier (IDFA)
My app doesn’t make use of any advertising, and even after dialing "No" on both options I keep getting a warning below and I can’t send the app for evaluation. What might be going on? [...] If your…
iosasked 10 years, 1 month ago Tiago Amaral 1,520 -
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answer98
viewsChange in image density (IPR)
I am working with a project that I do image capture and I need to transmit this image with 200dpi, I would like to know how to change the image density to 200 dpi ?
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answer390
viewsGenerate package for publication in Apple Store
I created an app on Phonegap and now I need to generate a package to publish in the Apple, my doubt is this: there is a way to create this package without having a Mac and the Xcode? I have…
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answer142
viewsJava to Objective-C conversion
I need to convert this small code in Java to Objective-C to run a function in Objective-C, but there is an error that I haven’t been able to find yet. Java code: final char CHR0 = 0; String…
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answers272
viewsHow to perform asynchronous request using JSON?
Scenario, I have a data request using JSON but I would like this request to be performed outside the main thread of the app, so that it does not catch and that the user can perform other operations…
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answers343
viewsWhen to convert a 32-bit to 64-bit code in iOS
I know there is a lot of information about converting a 32-bit to 64-bit code on iOS. However, I still have many doubts and I believe that they are the same of other people, especially in the issue…
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answers149
viewshow to measure speed in mobile broadband traffic on 3g or mobile wifi programmatically on iphone
In the app, I’m already collecting traffic on iphone, now I need to check how to measure the speed in mobile broadband traffic on 3g or in the wifi programmatically. For example: Every 1 minute or…
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answer181
viewsHow do I know the app’s web service is down?
Scenario: The app consumes data from a web service, so that the app does not get "locked" I added the task of downloading the data in a secondary trhead, according to the following code:…
ios web-service objective-c multithreading response-timeasked 10 years, 1 month ago Tiago Amaral 1,520 -
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answer305
viewsQuery based on relationship, using Nspredicate in Core Data
I have a one-to-many relationship between entities Pai and Filho, where a Pai may have any or N Filho. Using the Core Data, how do I fetch all the Filho, basing my search for a Pai. For example: I…
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answers412
viewsInstall IPA using Swift
I’m developing an APP for jailbreak, I would like to know how to install a .ipa that I downloaded from my server to be able to install on the device (iPhone and iPad). My app does not promote…
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answer94
viewsError running Xcode 6 an app created in Xcode 5
I have an app that runs perfectly on Xcode 5. For update effect, I installed Xcode 6 and ran the same app (without uninstalling Xcode 5). Then I found some problems, among them: 1) The app runs only…
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answers119
viewsHow to send data to web service using Afnetworking?
I have a form that must be filled in the application and sent to the web service to register a new user. How could I send this data to the web service using Afnetworking 2.0? I tried to use the code…
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answers102
viewsScroll Uiscrollview automatically when entering Uitextfield
I need to create a form that scrolls the screen as it is filled out. The idea is that the screen scrolls as I fill and so displaying the fields that are below the keyboard.
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answer563
viewsHow do I know when the app quits on iOS?
I’m developing an app that sends notification by push, but so that my server does not send notifications to the devices from which my application was uninstalled and does not pollute my server, as I…
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answers80
viewsSave route according to feed
How to save route using CLLocation and Mapkit, and score multiple points on the map by updating as you move?
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answer72
viewsPredicate with CAST
Accessing the database .sqlite via sql normally I can use the function CAST('coluna' as decimal). Via NSPredicate using CoreData, how do I do the same thing? I have a column like String and I need…
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answer59
viewsHow to use Uibutton icon
How I put an icon in a UIButton through the .storyboard? Through the .storyboard has the options of UIButton between them has the option image where I can enter a path to an image for the button.…
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answer180
viewsParameters for a Container View
The scenario is as follows: I own a UIViewController and within this controller I own one UITableViewController added as a ContainerView. How do I pass parameters between my UIViewController and my…
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answers84
viewsHow to create Uisegmentedcontrol customized?
How to create UISegmentedControl customized? My goal is to create a UISegmentedControl , as in the image below:…
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answer99
viewsClear Context using Coredata persistence
I wonder if there’s any way to "clean up" my context using the Core Data. Because I have a problem that when I update the application, the same after saving the records in the database, also keeps…
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answer334
viewsFormat Brazil Currency in Objective C
I have a string already formatted, I would like to turn it into a float and then into a number formatted for currency. exit entrance 1.234,10 1234.1 or 1234.1 exit entrance 1.234.10 1.234,10…
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answer353
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answers2410
viewsOpen link to facebook in iOS Safari
Setting: I own an app, which has a link to a particular page on facebook. When the user clicks on the link, it should be directed to the page and load it with Safari. But if you have the Facebook…
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answer60
viewsProblem receiving the return of an object
I created a class to download data from a web service. And I take the following test steps: I instate the download class in viewDidLoad of Viewcontroller and then run the method, as in the code…
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answer55
viewsHow do I use Airprint to print a text from a Uitextfield?
Someone could indicate a tutorial, or sample code explaining how to print a text from an Uitextfield.
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answer63
viewsRestrict iOS versions
Is there any way I can restrict iOS versions? Detail: Not the minimum version For example, I developed an app and would like it to run on iOS 7.x. x and iOS 8.1.x. In short, I would like to prevent…
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answers1859
viewsHow to get the serial number (not the IMEI) of iOS and Android devices?
How to get the serial number of a mobile device? I need the solution in Adobe, firemonkey that works on both Android and iOS.
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answer61
viewsNsobjectinaccessibleexception - Deleting all objects from an Entity - Nsfetchedresultscontroller
I have a function responsible for deleting all items of an entity: func removeItens() { if let managedContext = managedObjectContext { let fetchRequest = NSFetchRequest() let entity =…
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answer838
viewsAndroid Alarm / IOS with Phonegap
Good evening, I’m just developing an application for parties. In this application lists the city parties with date and time, tickets and tals.. I’m having a hard time creating a feature, I need to…
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answers57
viewsHow to update a framework on iOS
I’m changing an app. This app uses a framework called Ushahidi which is compatible only with iOS7. I detected a change to that one thing in the framework function in the iOS8. My doubt is how I can…
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answer49
viewsHow to configure Nspredicate to perform filter?
I am implementing a filter, where I need to search the records in Core Data, that have "yes" in certain columns. Table: For example, return the elements that have yes in the columns ATRIBUTO1,…
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answer71
viewsInterstitial Iad - Close button
I’m trying to include a fullscreen Iad in an app, but the advertising screen is appearing without the close button, the doubt is whether I have to do it by hand or has some hidden option for it? I…
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answers73
viewsI am making a post to register ads but he does not find the user_id
I’m creating a post where I can register and save ads from my app to my api. When I click to register it returns the error got 422 however if I put the user id manually and permanently (user_id =…
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answer37
viewsAWS IOS SDK Dynamodb Scan - Scan thread works on emulator, but not when debugging on device
In my app I use a scan with Dynamodb that works perfectly in the emulator for all iOS versions that Xcode makes available, however, when debugging on the device (iPhone 5c), does not run the main…
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answer5354
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answer75
viewsImplementation in Car class objective-C
I have this code and I would like to know if this way of implementing is valid in objective-C. @interface Carro : NSObject @property (copy, nonatomic) NSUInteger ano; @property (copy, nonatomic)…
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answer612
viewsHow to add 1 kilometer to a Google Maps coordinate?
How could you add 1 km (or 1,000 m) to a google maps coordinate to determine an area? Example: Radius formed by points A and B: Point A = Latitude:-22.91009, Longetude: -43.107499. Point B =…
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answer309
viewsHow to get nearby Ceps via Geolocation or GPS on Iphone?
I’m developing an app for delivery, but I’m having trouble getting the automatic zip code through my location. Using the library Corelocation from IOS, until I get the zip code, but only the first 5…
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answers312
viewsHow to Configure Tab Bar Controller?
I have a Tab Bar Controller with 5 Viewcontrollers connected to it. With this, 5 buttons are displayed on the bar. I would like the Viewcontroller connected to the third button (middle button) to be…
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answer54
viewsHow to correctly adjust the image height in a Uitabbaritem?
I set up two images for one tabBarItem. As I couldn’t find a way to change the center of the image, I used the following method to make the image effect go up a few pixels, above the UITabBar:…
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answer245
viewsHow to show Facebook friends list on Ios with Swift
I would like to know how I show a list with my facebook friends using the facebook SDK for IOS and with Swift. I’ve already done the installation and I’m already logging in on facebook. I’m just not…
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answer158
viewsHow to perform file configuration for many Targets?
How can I configure Xcode to perform the following task: Use 1 Target as a template for other targets, and that some file/class when included or changed in this template can be referenced in other…
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answer55
viewsProperty getting nil
I’m facing a problem that a property is getting nil unexplained. NSMutableArray * lojas = [[NSMutableArray alloc] init]; for (int x = 0; x < lojaResultado.count; x++) { NSDictionary *…