Questions tagged [iphone]

DO NOT use this tag unless you are addressing Apple's iPhone and/or iPod touch specifically. For questions not dependent on hardware, use the tag [ios]. More tags to consider are [xcode] (but only if the question is about the IDE itself), [swift], [objective-c] or [cocoa-touch] (but not [cocoa]). Please refrain from questions regarding the iTunes App Store or about iTunes Connect. If using C#, tag with [mono].

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286 votes
8 answers
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Processing Symbol Files in Xcode

I was wondering if anyone could tell me what Xcode is actually doing when it says: "Processing Symbol Files" after plugging in your device?
Woodstock's user avatar
  • 22.5k
285 votes
38 answers
226k views

Detect if the device is iPhone X

My iOS app uses a custom height for the UINavigationBar which leads to some problems on the new iPhone X. Does someone already know how to reliable detect programmatically (in Objective-C) if an app ...
Andrei Herford's user avatar
285 votes
6 answers
137k views

What does ENABLE_BITCODE do in xcode 7?

I have a problem with the embedded bitcode term. What is embedded bitcode? When to enable, ENABLE_BITCODE in new Xcode? What happens to the binary when enabled, ENABLE_BITCODE in Xcode 7?
damithH's user avatar
  • 5,158
283 votes
17 answers
94k views

Where are iOS simulator screenshots stored?

I have saved some screenshots in the iPhone Simulator running iOS 5, but I can't find them. I had this problem before, and it took me frickin' ages to find them in the file system. Is this so simple ...
Flyingkiwi's user avatar
  • 3,146
282 votes
21 answers
269k views

Aligning text and image on UIButton with imageEdgeInsets and titleEdgeInsets

Historic question. Note that 15 years later, .imagePadding is the space between the image and label. Original question: I would like to place an icon left of the two lines of text such that there's ...
Justin Galzic's user avatar
281 votes
14 answers
215k views

Cocoa Touch: How To Change UIView's Border Color And Thickness?

I saw in the inspector that I can change the background color, but I'd like to also change the border color and thickness, is this possible?
Shai UI's user avatar
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277 votes
6 answers
91k views

Warning: The Copy Bundle Resources build phase contains this target's Info.plist file

I've separated a project into two builds and given each of them a plist file. Everything works fine, but I keep getting this build warning: Warning: The Copy Bundle Resources build phase contains ...
nevan king's user avatar
  • 113k
275 votes
7 answers
143k views

How to store custom objects in NSUserDefaults

Alright, so I've been doing some poking around, and I realize my problem, but I don't know how to fix it. I have made a custom class to hold some data. I make objects for this class, and I need to ...
Ethan Mick's user avatar
  • 9,537
272 votes
23 answers
285k views

How to get device make and model on iOS?

I was wondering if it's possible to determine what kind of iPhone (for example) the currentdevice is? I know it's possible to get the model through NSString *deviceType = [[UIDevice currentDevice] ...
Nathan Fraenkel's user avatar
271 votes
6 answers
127k views

Always pass weak reference of self into block in ARC?

I am a little confused about block usage in Objective-C. I currently use ARC and I have quite a lot of blocks in my app, currently always referring to self instead of its weak reference. May that be ...
the_critic's user avatar
  • 12.8k
270 votes
10 answers
557k views

How much does it cost to develop an iPhone application? [closed]

How much can a developer charge for an iPhone app like Twitterrific? I want to know this because I need such an application with the same functionality for a new community website. I can do Ruby but ...
user27815's user avatar
  • 2,339
270 votes
10 answers
186k views

How to disable scrolling in UITableView table when the content fits on the screen

I have a few (grouped style) tables in my iphone app (only on part of the screen and added with Interface Builder though, not subclassed from UITableViewController) that 80% of the time are small and ...
Ginny's user avatar
  • 3,111
265 votes
8 answers
162k views

iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]

Possible Duplicate: How to develop or migrate apps for iPhone 5 screen resolution? I was just wondering with how should we deal with the iPhone 5 bigger screen size. As it has more pixels in ...
jturolla's user avatar
  • 6,626
264 votes
3 answers
138k views

CSS submit button weird rendering on iPad/iPhone

I noticed that if I style my buttons with CSS using radius, colors and borders, they look good but in the iphone/ipad/ipod they look terrible...shouldn't be the same rendering as in Safari Desktop??
Francesco's user avatar
  • 25.1k
262 votes
15 answers
201k views

What is App store screenshot size for 6.5" display?

Apparently, Apple documentation can't keep up with App Store changes. Until today, the biggest (optional) display size was a 5.8-Inch Super Retina Display with a resolution of 1125 x 2436 pixels. ...
pcz's user avatar
  • 2,739
260 votes
20 answers
342k views

App Store Connect Screenshots Sizes for all iOS (iPhone/iPad/Apple Watch) devices

I'm trying to submit a new application to the App Store but now Apple requires screenshots for iPhones of 4.7 inch and 5.5 inch. Anyone has these screenshot specifications (size)? I tried with: 640 ...
EO Games and Apps's user avatar
258 votes
45 answers
211k views

Making a UITableView scroll when text field is selected

After a lot of trial and error, I'm giving up and asking the question. I've seen a lot of people with similar problems but can't get all the answers to work right. I have a UITableView which is ...
256 votes
16 answers
115k views

How can my iphone app detect its own version number?

I'm writing an iPhone app. It's already been published, but I would like to add a feature where its version number is displayed. I'd rather not have to do this manually with each version I release......
user avatar
254 votes
18 answers
280k views

iPhone: How to get current milliseconds?

What is the best way to get the current system time milliseconds?
user avatar
253 votes
38 answers
134k views

Launch Screen storyboard not displaying image

I'm trying to get an image to display as the launch screen from my Launch Screen.storyboard file, however the image never displays. I have labels that show up fine, but the image doesn't appear. This ...
shadowarcher's user avatar
  • 3,413
252 votes
18 answers
197k views

iOS app 'The application could not be verified' only on one device

I have two iphone devices( 4s and 5 ) connected to my computer and i am trying to install an application in both the devices. It installs pretty well in iphone 5 but it gives an error 'The application ...
Sunil's user avatar
  • 3,434
252 votes
21 answers
167k views

How to show "Done" button on iOS number pad keyboard?

There is no "Done" button on the .numberPad Keyboard Type. When a user finishes entering numeric information in a text field, how can I make the number pad disappear? I could get a "...
Chilly Zhong's user avatar
  • 16.8k
249 votes
4 answers
205k views

How to create NSIndexPath for TableView

I need delete row 1 of a table in a function I have defined. In order to use deleteRowAtIndexPath you must use an IndexPath with a section and row defined. How can I create an indexpath like this? ...
Rubber Duck's user avatar
  • 3,037
248 votes
13 answers
149k views

How to compare two NSDates: Which is more recent?

I am trying to achieve a dropBox sync and need to compare the dates of two files. One is on my dropBox account and one is on my iPhone. I came up with the following, but I get unexpected results. I ...
n.evermind's user avatar
248 votes
20 answers
142k views

Make UINavigationBar transparent

How do you make a UINavigationBar transparent? Though I want its bar items to remain visible.
quano's user avatar
  • 19k
245 votes
35 answers
264k views

Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error

I have imported framework for sending email from application in background i.e. SKPSMTPMessage Framework. Can somebody suggest why below error is shown Undefined symbols for architecture i386: "...
Mann's user avatar
  • 5,497
245 votes
23 answers
309k views

How to load a UIView using a nib file created with Interface Builder

I'm trying to do something a bit elaborate, but something that should be possible. So here is a challenge for all you experts out there (this forum is a pack of a lot of you guys :) ). I'm creating a ...
user avatar
243 votes
11 answers
166k views

How can I send mail from an iPhone application

I want to send an email from my iPhone application. I have heard that the iOS SDK doesn't have an email API. I don't want to use the following code because it will exit my application: NSString *url =...
Khushi's user avatar
  • 3,119
242 votes
69 answers
622k views

Apple Mach-O Linker Error when compiling for device

I've just upgraded to xcode 4.0 and I can no longer deploy to iPhone, I get a Apple Mach-O Linker Error, it still works for the simulator though. Ld /Users/yveswheeler/Library/Developer/Xcode/...
241 votes
11 answers
99k views

Xcode 'Build and Archive' menu item disabled

I have been using the new 'Build and Archive' feature of the latest Xcode 3.2.3. I like it. Now I noticed that it is always disabled for some reason. I can't seem to figure out what I changed to ...
toofah's user avatar
  • 4,465
241 votes
8 answers
147k views

iPhone - Get Position of UIView within entire UIWindow

The position of a UIView can obviously be determined by view.center or view.frame etc. but this only returns the position of the UIView in relation to it's immediate superview. I need to determine the ...
adam's user avatar
  • 22.5k
241 votes
43 answers
297k views

A valid provisioning profile for this executable was not found for debug mode

I am getting this error while I am trying to debug my app on device. I created development provisioning profile as it is mentioned at the developer portal. My development device is selected in the ...
xenep's user avatar
  • 3,385
239 votes
7 answers
92k views

applicationWillEnterForeground vs. applicationDidBecomeActive, applicationWillResignActive vs. applicationDidEnterBackground

Which is the proper delegate to implement when an application is waking up from being in the background and you want it to prep it to be active? applicationWillEnterForeground vs ...
Paul's user avatar
  • 5,053
239 votes
20 answers
272k views

Get push notification while App in foreground iOS

I am using push notification service in my app. When app is in background I am able to see notification on notification screen(screen shown when we swipe down from top of iOS device). But if ...
Ab'initio's user avatar
  • 5,408
237 votes
9 answers
140k views

How can I use NSError in my iPhone App?

I am working on catching errors in my app, and I am looking into using NSError. I am slightly confused about how to use it, and how to populate it. Could someone provide an example on how I populate ...
Nic Hubbard's user avatar
  • 41.9k
237 votes
6 answers
250k views

Styling input buttons for iPad and iPhone

I'm using CSS to style the input buttons on my website, but on IOS devices the styling is replaced by Mac's default buttons. Is there a way to style buttons for iOS, or a way to maybe make a hyperlink ...
mheavers's user avatar
  • 29.8k
237 votes
16 answers
346k views

Get User's Current Location / Coordinates

How can I store the user's current location and also show the location on a map? I am able to show pre-defined coordinates on a map, I just don't know how to receive information from the device. ...
Awais Hussain's user avatar
237 votes
12 answers
302k views

How do you create a Swift Date object?

How do you create a date object from a date in swift xcode. eg in javascript you would do: var day = new Date('2014-05-20');
code_cookies's user avatar
  • 3,990
236 votes
11 answers
176k views

iOS 7 Navigation Bar text and arrow color

I want to set background for Navigation Bar to be black and all colors inside it to be white. So, I used this code : [[UINavigationBar appearance] setTitleTextAttributes: [NSDictionary ...
1110's user avatar
  • 8,029
236 votes
17 answers
114k views

Change font size of UISegmentedControl

Can anyone please tell me how can I change the font type and size of UISegmentedControl?
Aashutosh Tiwari's user avatar
234 votes
23 answers
218k views

How to deselect a selected UITableView cell?

I am working on a project on which I have to preselect a particular cell. I can preselect a cell using -willDisplayCell, but I can't deselect it when the user clicks on any other cell. - (void)...
Ram's user avatar
  • 2,513
234 votes
13 answers
156k views

Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps?

I'd like to have iOS to open URLs from my domain (e.g. http://martijnthe.nl) with my app whenever the app is installed on the phone, and with Mobile Safari in case it is not. I read it is possible to ...
Martijn Thé's user avatar
  • 4,684
231 votes
24 answers
412k views

How to call gesture tap on UIView programmatically in swift

I have a UIView and and I have added tap gesture to it: let tap = UITapGestureRecognizer(target: self, action: Selector("handleTap:")) tap.delegate = self myView.addGesture(tap) I am trying to call ...
George's user avatar
  • 3,690
231 votes
20 answers
321k views

missing private key in the distribution certificate on keychain

I have the following problem which I could not find a solution for anywhere. Basically, we have a company developer account (not enterprise) and so in order to submit our app, I requested from our ...
moshikafya's user avatar
  • 3,230
230 votes
5 answers
209k views

@property retain, assign, copy, nonatomic in Objective-C

As someone that's new to Objective-C can someone give me an overview of the retain, assign, copy and any others I'm missing, that follow the @property directive? What are they doing and why would I ...
Mark Reid's user avatar
  • 2,621
229 votes
15 answers
160k views

How to animate the change of image in an UIImageView?

I have an UIImageView with an image. Now I have a completely new image (graphic file), and want to display that in this UIImageView. If I just set myImageView.image = newImage; the new image is ...
dontWatchMyProfile's user avatar
229 votes
22 answers
140k views

Stop UIWebView from "bouncing" vertically?

Does anyone know how to stop a UIWebView from bouncing vertically? I mean when a user touches their iphone screen, drags their finger downwards, and the webview shows a blank spot above the web page I ...
Brad Parks's user avatar
  • 68.9k
229 votes
8 answers
46k views

iOS Tests/Specs TDD/BDD and Integration & Acceptance Testing

What are the best technologies to use for behavior-driven development on the iPhone? And what are some open source example projects that demonstrate sound use of these technologies? Here are some ...
228 votes
9 answers
107k views

Preserve HTML font-size when iPhone orientation changes from portrait to landscape

I have a mobile web application with an unordered list containing multiple items with a hyperlink inside each li: My question is: how can I format the hyperlinks so that they DON'T change size when ...
DShultz's user avatar
  • 4,461
228 votes
9 answers
146k views

QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded the quota

Using LocalStorage on iPhone with iOS 7 throws this error. I've been looking around for a resolvant, but considering I'm not even browsing in private, nothing is relevant. I don't understand why ...
Nict's user avatar
  • 3,068