Recent questions tagged iOS

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I'm using ActionSheet in my application. On my iPhone it works, but it doesn't on ... method -prepareForPopoverPresentation.' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Duplicate Symbols for Architecture arm64

When I try running my Xcode Project it fails with an error stating that I have duplicate symbols. I looked online ... ideas how to fix this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Usage of NSException in iPhone Apps

One of my friends asked me not to use NSException in iPhone Apps. The reason he gave was "performance ... performance hitches it could create. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Custom Segue Animation

I am trying to use a custom segue to perform a kind of zoom animation. When the transition is executed, the ... What I am doing wrong ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How does undo/redo basically work on iPhone OS?

My app doesn't use Core Data yet. Is it true that I must use Core Data for undo/redo? And: How does the ... So how does the user trigger this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Changing view controller when Segmented Control changes

This problem is driving me crazy. I'm trying to change the viewController when the user changes the selected "tab ... this? Thank you very much. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Using CABasicAnimation to rotate a UIImageView more than once

I am using a CABasicAnimation to rotate a UIImageView 90 degrees clockwise, but I need to have it rotate a ... a starting point. Any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - converting NSDictionary object to NSData object and vice-versa

I have to convert an NSDictionary object into NSData and further I have to get the same NSDictionary out of the ... should I go about it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How To Disable AFNetworking Cache

Is it possible to disable all the cache features from AFNetworking? I am building my own custom cache system and ... space too. Thanks, Ashley See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - UIWebView webpage caching for offline viewing

First of all, I'm pretty sure that I have checked every answer here and nothing does what I would like to ... . Any help would be appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How to do authentication in UIWebView properly?

I would like to support HTTP Basic Authentication in my UIWebView. At the moment, I am canceling requests in webView ... . What am I missing? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How to get managedObjectContext for viewController other than getting it from appDelegate?

Recently I came to know that "You really shouldn't be calling down to the AppDelegate to get the managed ... this portion of Apple documents? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Get Date and Time from Apple Server

I'm developing an app that can only be used during a certain time of the day. I can't get the local device ... not,) is there any other way? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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162 views

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ios - How to asynchronously load an image in an UIImageView?

I have an UIView with an UIImageView subview. I need to load an image in the UIImageView without blocking the ... the image is never changed. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

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ios - Converting HTML text into plain text using Objective-C

I have huge NSString with HTML text inside. The length of this string is more then 3.500.000 characters. How ... works too slowly. Any idea ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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165 views

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ios - Setting constraints programmatically

I'm experimenting with how to use UIScrollView. After much trouble, I finally got the hang of it. But now I' ... Email from the table view list. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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297 views

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ios - GM release of Xcode 6 compile

I just downloaded the GM release of Xcode 6 and it won't compile with this error: Command /Applications/Xcode.app/ ... ideas on how to fix this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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445 views

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ios - Can't connect IBOutlet in Interface Builder

I'm having a weird experience. I create any type of iPhone application, add a UIViewController with Xib file. ... Interface Builder. Any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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327 views

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ios - Waiting for multiple asynchronous download tasks

I want to download some files, for example 100 files, at the same time. So I decided to add my download ... download task at the same time. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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244 views

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ios - UITableViewRowAction image for title

I made a custom UITableViewRowAction. Now I'd like to add an image instead of the text. I know that it's ... help me? Thanks for your answers! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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358 views

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ios - import swift class in objective-c, <myModule>-Swift.h file not found

I have an iOS project written with Objective-C. I created an Swift class in the project, the bridging header file ... My xcode version is 6.4 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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288 views

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ios - Today App Extension Widget Tap To Open Containing App

I've implemented a Today widget for my application +Quotes which displays the day's quote within the ... customURL completionHandler:nil]; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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296 views

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ios - Error itms-90035 - Xcode

I have developed a phonegap application which is running absolutely fine on iPhone. Now, I want to submit the app ... strange. Please help :) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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254 views

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ios - How do you properly order data from Firebase chronologically

I'm trying to order my data from Firebase so the most recent post is at the top (like Instagram), ... print(error.localizedDescription) }) } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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268 views

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ios - Showing camera view inside html in android and then snap a picture

Is there a view of showing the live camera view inside html ( e.g. embedded in a div ) before we ... need something embedded in my app Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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268 views

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ios - Do we need to use __weak self inside UIAnimationBlocks in ARC?

Do we need to use __weak self inside UIAnimation Blocks as given below? Whether it will create retain cycle issue if ... we use weak self here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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452 views

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ios - Radial gradient background in Swift

I have been trying to produce a basic radial gradient background, but without success. I managed to get a ... .locations = gradientLocations ... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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190 views

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ios - How To Get HTML source from URL with Swift

I need to look at the HTML of a page given by a certain URL. If I have this, what is the most efficient and ... URL. How is this done in Swift? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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