Recent questions tagged IOS

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ios - How to access and refresh a UITableView from another class in Swift

I have a tab bar application and a tab whose view controller is controlled by a UITableView class. I have a ... : UITableViewController { ... } 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 - UIPopoverController's view controller gets resized after keyboard disappears

I have a view controller inside a UIPopoverController. When I open a keyboard for a text field that belongs to the ... back to what it was? See Question&Answers more detail:os...

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

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611 views

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ios - How to swizzle init in Swift

I'm following Swift & the Objective-C Runtime, it works for normal methods. I like to swizzle init ... originalMethod, swizzledMethod); } } 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 - SecTrustEvaluate always returns kSecTrustResultRecoverableTrustFailure with SecPolicyCreateSSL

My application tries to evaluate a server trust certificate for a self signed certificate. This is working fine with ... might be missing here? See Question&Answers more detail:os...

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

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591 views

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ios - Binary Rejection - Invalid Watchkit Support

We develop Watchkit app about 1.5 month, and we used Xcode 6.2 beta2,beta4, Xcode 6.3 beta to develop before and ... . " anyone help me , thx. See Question&Answers more detail:os...

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

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764 views

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ios - How to group array of objects by date in swift?

Need to group according to date. Response coming is in sorted format. Need to apply a filter on date to group. ... able to find a good solution. See Question&Answers more detail:os...

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

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565 views

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ios - How to dismiss own view controller and present another view controller in a button tap?

Let's say I have 3 view controller labeled "A","B" and "C". Right now, "A" is the rootViewController of the ... B" and "C" are view controllers. See Question&Answers more detail:os...

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

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442 views

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ios - How keep NSTimer when application entering background?

I'm here because a didn't find any solutions for my issue :( I'm doing an simple application in which i have ... help :) Thanks to everyone !! See Question&Answers more detail:os...

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

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613 views

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ios - How to create padding(spacing) between rows in tablview

This isn't a duplicate I read the other questions regarding this and none of them gave me what i needed , I'm ... rows. how can i do this? See Question&Answers more detail:os...

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

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814 views

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ios - Camera Freeze when open app while call is running

I have created a camera using AVCaptureSession. I have configured that for both Photo and Video recording modes. Camera ... can i achieve this. See Question&Answers more detail:os...

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

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499 views

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ios - Create a UIImage by rendering UIWebView on a background thread - iPhone

Does someone know of a way, or has a creative idea as to how to obtain an UIImage that is rendered from a ... there a savior among you people? See Question&Answers more detail:os...

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

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589 views

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ios - Reading a BLE Peripheral Characteristic and checking its value?

I'm writing an app using Swift on Xcode that connects to a bluetooth BLE peripheral. I've established a connection ... to go about doing this? See Question&Answers more detail:os...

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

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542 views

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ios - Why doesn't NSManagedObject instances hold a strong reference to their NSManagedObjectContext?

As pointed out in another question on SO (and the Apple docs), NSManagedObject instances do not hold a strong ... , specific to RestKit, here. See Question&Answers more detail:os...

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

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700 views

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ios - Swift Timer.scheduledTimer() doesn't work

I have two views in my swift app. I am performing a segue as below. ViewController.swift ------------- ... (){ print("Timing") } } See Question&Answers more detail:os...

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

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417 views

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ios - ACAccountStore Error 6 (ACErrorAccountNotFound) and 8

I'm attempting to get an account from ACAccountStore using the following code: - (void) facebookLoginOnSuccess: ( ... getting the same error. See Question&Answers more detail:os...

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

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432 views

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ios - retrieving core data into tableview cells swift

I am trying to simply store and retrieve CoreData (something that I've done successfully before with swift). I was ... not sure how to fix 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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756 views

1 answer

ios - Detect add photos only permission

In ios 11 we now have "Add photos only" permission setting. But how we now determinate which photo library ... dosen't require read permissions? See Question&Answers more detail:os...

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

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463 views

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ios - Xcode 7 Archive size large

I've previously been using Xcode 6 to write my Swift app. I've now upgraded to Xcode 7 and upgraded my Swift ... since I'm using Xcode 7? See Question&Answers more detail:os...

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

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431 views

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ios - High memory usage looping through PHAssets and calling requestImageForAsset

I'm using an image picker library to allow the user to select many images from their photo library. They are returned ... . How can I do this? See Question&Answers more detail:os...

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

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390 views

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ios - UIMenuController method setTargetRect:inView: not working in UITableView

I am displaying custom UIMenuController in my tableview like this but issue is that it is displaying in the center I want ... NSLog(@"copy"); } See Question&Answers more detail:os...

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

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414 views

1 answer

ios - iOS8 self-sizing static TableView cells with Interface Builder

I am excited by the prospect of being able to build my static TableViews right within Xcode, using Auto ... dynamic (working) table views. See Question&Answers more detail:os...

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

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573 views

1 answer

ios - Camera pose estimation from homography or with solvePnP() function

I'm trying to build static augmented reality scene over a photo with 4 defined correspondences between coplanar ... would be much 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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608 views

1 answer

ios - iCloud + Storage of media in iPhone Documents folder

I, like many developers, got an email from Apple recently that stated we should move our data from the documents ... not Apple. What to do? See Question&Answers more detail:os...

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

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817 views

1 answer

ios - ARKIT: Move Object with PanGesture (the right way)

I've been reading plenty of StackOverflow answers on how to move an object by dragging it across the screen. Some ... a simpler way to 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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448 views

1 answer

ios - How long do iAd apps take to start generating impressions?

I released an app with an iAd in it on Friday. So far it has generated zero impressions with many requests - ... time, or is something wrong? See Question&Answers more detail:os...

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

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451 views

1 answer

ios - coredata - move to app group target

I am new to the Today extension and using an embedded framework. Our app currently uses core data backed by ... upgrade to a new structure? See Question&Answers more detail:os...

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

0 votes

587 views

1 answer

ios - swift: setting back button image in nav bar

I'm trying to set the back button image in nav bar in my controller, here's my code in viewDidLoad(): var ... got error saying it's nil 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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655 views

1 answer

ios - get SecKeyRef from base64 coded string

I'm working on an iOS app and I get a base64 coded public key such as: MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3gn+tJ1+ ... do I need to do? See Question&Answers more detail:os...

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

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