Recent questions tagged IOS

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ios - open UIImagePickerController in landscape mode

I want to open iphone saved images in my application. my application working in landscape mode. when I trying to ... me.. Thanks in advance. See Question&Answers more detail:os...

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

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371 views

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ios - How can one enable keyboard like in iMessages/FB Messenger in landscape mode at iOS8?

In my project I have textViews with associated input keyboard which has the strange look in landscape mode on ... without bugs as follows: See Question&Answers more detail:os...

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

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250 views

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ios - Allow "auto lock" while video is being played

No matter whether I am using MPMoviePlayerController or AVPlayer (AVFoundation), the iOS does not allow the device ... allow autoplay on those. See Question&Answers more detail:os...

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

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206 views

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ios - How to use NSURLSession to determine if resource has changed?

I'm using NSURLSession to request a JSON resource from an HTTP server. The server uses Cache-Control to limit the ... object is up to 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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430 views

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ios - Measuring Time Accurately in Swift for Comparison Across Devices

I need to be able to record reaction time, from when the screen loads or the question label refreshes until the user ... ", sender: 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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495 views

1 answer

ios - check / uncheck the check box by tapping the cell in table view and how to know which cell has checked or unchecked

i am new to ios swift 2.2 . I tried to create one table view with custom cell xib. and i am populating ... please help me out. Thanks in advance See Question&Answers more detail:os...

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

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396 views

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ios - Youtube video autoplay inside UIWebview

I found many questions in this forum regarding embedding youtube video and autoplay, but none of them cleared all my ... (2) is not possible. See Question&Answers more detail:os...

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

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436 views

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ios - PHImageResultIsDegradedKey/PHImageFileURLKey is not found

iOS 13 beta4 no longer gives 1) PHImageFileURLKey 2) PHImageResultIsDegradedKey in image result info keys. Anyone ... fileurl of the PHAsset? See Question&Answers more detail:os...

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

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323 views

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ios - NSPredicate to match "any entry in an NSDatabase with value that contains a string"

I have an array of dictionaries, similar to the following: ( { Black = "?"; Date = "????.? ... needing something less specific. Any suggestions? See Question&Answers more detail:os...

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

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166 views

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ios - How to ensure to run some code on same background thread?

I am using realm in my iOS Swift project. Search involve complex filters for a big data set. So I am ... queue after some time other thread See Question&Answers more detail:os...

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

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302 views

1 answer

ios - Objective C- Trouble updating UI on main thread

I am having some trouble updating my UI using performSelectorOnMainThread. Here is my situation. In my viewDidLoad I ... on the main thread? See Question&Answers more detail:os...

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

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244 views

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ios - record input coming from bluetooth headset in iPhone

I have a project in which I have to record the voice coming from bluetooth headset and play with default ... appreciated. Thanks in Advance!! See Question&Answers more detail:os...

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

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368 views

1 answer

ios - Setting a rotation point for CGAffineTransformMakeRotation Swift

I am using the code below to rotate UIImageViews to different angles. self.imageOne.transform = ... for your 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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327 views

1 answer

ios - Does UIImageView cache images?

Probably I'm gonna ask the same question which was asked by other person (But it has no responses): Speed ... tricks, to make animation smooth? See Question&Answers more detail:os...

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

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166 views

1 answer

ios - Parsing XML with AFNetworking

I am fairly new with iOS and is trying to do a REST request and fetch some XML data, parse that and ... xml = EntityUtils.toString(httpEntity); See Question&Answers more detail:os...

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

0 votes

430 views

1 answer

ios - ipad 3 - openGL bug with kEAGLDrawablePropertyRetainedBacking and retina?

i have an iOS openGL app which uses the kEAGLDrawablePropertyRetainedBacking property to draw the current frame on top of ... ideas ? tia, orion See Question&Answers more detail:os...

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

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289 views

1 answer

ios - XCode 4.2 MainStoryBoard Not Found

When I make changes to the MainStoryboard.storyboard none of these changes make it to my iOS device even though it ... ? I'm terribly lost. See Question&Answers more detail:os...

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

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376 views

1 answer

ios - Custom UISearchBar with UISearchController

The documentation for UISearchController says that you can override - searchBar to provide a custom subclass of ... supplied search bar? See Question&Answers more detail:os...

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

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231 views

1 answer

ios - How do I register UndoManager in Swift?

How do I use UndoManager (previously NSUndoManager) in Swift? Here's an Objective-C example I've tried ... with the object-based registration? See Question&Answers more detail:os...

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

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247 views

1 answer

ios - com.apple.CoreData.SQLDebug not working

I'm working with Xcode 8 with swift on MacOS Sierra in an iOS app. I realized a few months ago that the ... ! [NSManagedObject] } catch{ } } See Question&Answers more detail:os...

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

0 votes

352 views

1 answer

ios - Insert string at cursor position of UITextField

I've got a few UITextFields in an UITableView. The user should be able to insert only numbers and dots. To do ... other way to do this? Thanks. See Question&Answers more detail:os...

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

0 votes

321 views

1 answer

ios - Swift - AWS S3 Upload Image from Photo Library and download it

I've looked many amazon docs but didn't find enough information to upload and download images to S3 using Swift. How can I do that? See Question&Answers more detail:os...

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

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315 views

1 answer

ios - Which CGImageAlphaInfo should we use?

The Quartz 2D programming guide defines the availability of the various alpha storage modes: Which ones should ... than anecdotal evidence. See Question&Answers more detail:os...

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

0 votes

459 views

1 answer

ios - Making com.apple.CoreData.ConcurrencyDebug 1 work

I am trying to migrate some code to use an NSManagedObjectContext with NSPrivateQueueConcurrencyType. I'm sometimes getting ... 'm doing wrong? See Question&Answers more detail:os...

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

0 votes

280 views

1 answer

ios - "bad codegen, pointer diff" linker error with Xcode 4

Recompiling a C++ iPhone app with Xcode 4 I get this nasty linker error: ld: bad codegen, pointer diff in ... wiser what the actual problem was. See Question&Answers more detail:os...

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

0 votes

600 views

1 answer

ios - Dismiss and Present View Controller in Swift

Hi I'm trying to present a viewcontroller and dismiss my current modal view but this code is not working self. ... EDIT: replaced vc! to self See Question&Answers more detail:os...

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

0 votes

265 views

1 answer

ios - How to listen for keyboard open/close in Javascript/Sencha?

I have a HTML5/Javascript (Sencha) app that I have packed into PhoneGap for iOS in XCode. One way or another, I ... Is there any way to do this? See Question&Answers more detail:os...

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

0 votes

464 views

1 answer

ios - How to remove the bottom gap of UIPageViewController

I am using UIPageViewController to show images full screen, the UIViewController which is added to UIPageController as ... if that matters. See Question&Answers more detail:os...

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

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