Recent questions tagged iOS

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ios - sqlite3_step(statement) == SQLITE_DONE is always false

I am trying to Sign up a user in my application. I have a view controller with 3 textfields (username, ... that is happening. Please help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Disabling rotation for current screen?

Is it possible to enable/disable rotation parameter for current screen or this property is for all application? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - instantiateViewControllerWithIdentifier in xcode 5

I'm working on a storyboard in xcode 5. I have a navigation controller, and am trying to establish the ... help would be greatly appreciated! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - core data changes don't merge

I have set up a nonhierarchical dual-MOC architecture (one for the main thread, one for a private thread) with save ... else can I try? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Receive push when app is closed

I am trying to save a data that comes with push notification payload. It works well when the app is running but ... , sqlite3_errmsg(mydb)); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Segue to a new view in SwftUI after a successful authentication from API without a NavigationButton

I am trying to segue to an entirely new view after I get a 200 OK response code from my API. The ... NavigationButton. Any help is appreciated! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Protocol Delegate Method is not called in Swift

Protocol delegate method is not called.. First View controller code class ViewController: UIViewController,customDelegate { ... pls help me See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - lldb Xcode: error: 'printf' is not a valid command

I am using Xcode 4.3.3 and I want to set symbolic endpoints. I created a symbolic ... isSubclassOfClass:] [SLSMoleculeAppDelegate initialize] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - show all tabs with scrolling option (on screen there should be only 4 tabs)

I am newbie for iOS development. What I have done so far is as below. Created New Project Removed all controller ... on this to be done? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Swift unrecognized selector sent to instance error

I recently converted my project from Objective-C to Swift and in doing so I acquired this error whenever I click a ... know what to do anymore. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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787 views

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ios - Youtube video upload using NSURLRequest

I am trying to upload the video to youtube using NSURLRequest. I am able to authenticate and the user ... ", Please suggest... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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895 views

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ios - My iPhone Video Only Plays in Portrait Mode

I am using MPMoviePlayerController to play a movie. The movie starts in portrait mode (as that's the only ... ]; [moviePlayerController play]; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Serialize custom object to JSON which contains NSMutableArray

I'm trying to serialize my Cart object which has an NSMutableArray of items in it but getting an: *** Terminating ... line. What am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How to add a delay to a loop?

Im attempting add image views to a UIView using this code: for (int i = 0; i <numberOfImages; i++) { ... 15 seconds = three images on screen See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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724 views

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ios - move one dynamic body relatively to other dynamic body

I faced with some problem which I can't find solution for. I have swinging platform (body1) and hero (body2 ... remain dynamic all the time. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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ios - NSDateFormatter wrong string after formatting

I receive a date through a string parameter, which is tempDateString, in a [day month year] format (for ex. 01 ... format, to get the good date? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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899 views

1 answer

ios - Delete a UITableView row by click on custom UIButton

Basically I want to delete row on click event of a button which is a part of that row. I can not use commit ... any idea, how can i do it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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874 views

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ios - Login with Facebook using custom button

I've successfully use facebook SDK to login and get profile picture and name. But It's in the same view. I'm ... self.ProfileName.text = nil; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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783 views

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ios - Is using Core Location for performing functionality in the background appropriate?

Lately, I've notice that there are a few applications request to access the user's location for performing some ... a little confused about it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Custom UITableviewcell shows "fatal error: Can't unwrap Optional.None" issue in swift

I need to load a custom cell in a UITableView. I created a custom subclass of UITableViewCell named "CustomTableViewCell ... seen in the image. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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735 views

1 answer

ios - Create UIImage from shadowed view while retaining alpha?

I have a somewhat unusual problem. In my app, I am shadowing a UIImageView using basic Quartz2d layer shadowing. Here' ... , send it anyway. :) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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953 views

1 answer

ios - How to format convert the string 2013-01-27T02:31:47+08:00 into NSDate

I have tried many times to convert the string 2013-01-27T02:31:47+08:00 into NSDate. I have found the formatting ... 01-27T02:31:47+08:00"]; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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826 views

1 answer

ios - I want to apply CIFilter on video and save that filter applied video. [export taking too much time]

I want to apply CIFilter on video and save that filter applied video. I am using AVMutableVideoComposition (also tried ... : ",outputURL) } ) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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806 views

1 answer

ios - iphone write to file fails

I'm writing some data to a plist file but it fails on the device but not in the simulator. I'm lost, ... simulator. Can somebody help me out? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Error: Redundant conformance of 'ViewController' to protocol with extension

When I try this I get error: class ViewController: UIViewController, UIScrollViewDelegate { ...... } ... conforms to UIScrollViewDelegate ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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770 views

1 answer

ios - How to send email,sms notification from iPhone to Bluetooth LE device?

what services/profiles will i have to use to send email,sms notification from iphone to a bluetooth LE device.Is there any sample code??? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

ios - Selector to get indexPath UICollectionView Swift 3.0

I'm trying to get indexPath on the cell when it is tapped twice. I'm passing arguments in Selector like this but ... ) { print("Double Tap") } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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877 views

1 answer

ios - How to use the device token in method other than didRegisterForRemoteNotificationsWithDeviceToken?

I got the device token through didRegisterForRemoteNotificationsWithDeviceToken method. I wanted to use the device token in ... in other method. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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