Recent questions tagged iOS

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I have a problem with Swift class. I have a swift file for UITableViewController class and UITableViewCell class. My ... (named: image) } } 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 - Creating PDF file from UIWebView

-(void)createPDFfromUIView:(UIView*)aView saveToDocumentsWithFileName:(NSString*)aFilename { // Creates a mutable data object ... . 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 - Change default icon for moving cells in UITableView

I need to change default icon for moving cells in UITableView. This one: Is it possible? 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 - Levenshtein Distance Algorithm better than O(n*m)?

I have been looking for an advanced levenshtein distance algorithm, and the best I have found so far is O(n ... a better algorithm if possible. 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 turn a CVPixelBuffer into a UIImage?

I'm having some problems getting a UIImage from a CVPixelBuffer. This is what I am trying: CVPixelBufferRef ... ideas 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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332 views

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ios - UICollectionView's cell disappearing

What's happening Currently I have an application that uses two UICollectionViews inside a UITableView. This way I ... the same sad result. 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 - AVCaptureSession with multiple previews

I have an AVCaptureSession running with an AVCaptureVideoPreviewLayer. I can see the video so I know it's working. ... ) way of doing 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 - How to reload tableview from another view controller in swift

When I dismiss a modal view controller I want the tableview to update, I am using the form sheet ... viewDidAppear methods will not work 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 - Autoshrink on a UILabel with multiple lines

Is it possible to use the autoshrink property in conjunction on multiple lines on a UILabel? for example, the ... possible on 2 available lines. 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 do I fix the xcrun unable to find simctl error?

I have Xcode 6.2 Beta. Attempting xcrun simctl in terminal yields xcrun: error: unable to find utility "simctl", not a developer tool or in PATH See Question&Answers more detail:os...

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

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342 views

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ios - iPhone - Draw transparent rectangle on UIView to reveal view beneath

I currently have two UIViews: one of a red background and the other blue. The blue view is a subview of the red ... do you go about doing 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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271 views

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ios - How do I use a UISegmentedControl to switch views?

I'm trying to figure out how to use the different states of a UISegmentedControl to switch views, similar to how ... Paid' and 'Top Free'. See Question&Answers more detail:os...

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

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379 views

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ios - Keeping a UIButton selected after a touch

After my user clicks a button, I'd like that button to stay pushed during the time that I perform a ... self.checkInButton.highlighted = NO; } See Question&Answers more detail:os...

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

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207 views

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ios - How to switch to different Storyboard for iPhone 5?

Just as an app utilizes different storyboards for iPad and iPhone, I would like my app to use a ... default storyboard without the plist. See Question&Answers more detail:os...

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

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520 views

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ios - Is there a way to compile for ARM rather than Thumb in Xcode 4?

Apple is recommending to compiling for ARM rather than thumb if there are many floating point operations going on. ... now with Xcode 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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254 views

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ios - How to add Badges on UIBarbutton item?

Hi friends am new to iphone developing. Am struggle with add badge values on UIBarbutton item on right side. I ... help me. Thanks in advance! See Question&Answers more detail:os...

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

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325 views

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ios - How is layoutIfNeeded used?

When and how is layoutIfNeeded used? I know that when we change the layout of a view, we can call setNeedsLayout ... what context it was used. See Question&Answers more detail:os...

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

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323 views

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ios - How to change inactive icon/text color on tab bar?

How can I change inactive icon/text color on iOS 7 tab bar? The one in gray color. See Question&Answers more detail:os...

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

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330 views

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ios - Xcode MyProjectName-Bridging-Header.h does not exist

I want to start using Swift in my Objective-C project. So i added a swift class: import Foundation ... #endif #pragma clang diagnostic pop See Question&Answers more detail:os...

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

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292 views

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ios - Posting video on instagram using hooks

I want my app to be able to upload videos to instagram. Instagram IPhone Hooks gives information how to use the ... the same but for a video? See Question&Answers more detail:os...

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

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334 views

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ios - Does dispatch_async(dispatch_get_main_queue(), ^{...}); wait until done?

I have a scenario in my app, where I want to do some time consuming task which consists of some data ... I really apologize for the confusion. See Question&Answers more detail:os...

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

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319 views

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ios - Missing Push Notification Entitlement

I have received a warning mail from Apple after submitting the binary build. Missing Push Notification ... Push notification entitlement See Question&Answers more detail:os...

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

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466 views

1 answer

ios - Change font size of UISegmentedControl

Can anyone please tell me how can I change the font type and size of UISegmentedControl? See Question&Answers more detail:os...

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

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262 views

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ios - List of class properties in Objective-C

Is there a way to get an array of class properties of certain kind? For example if i have interface like this ... ???[self objects]???) See Question&Answers more detail:os...

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

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215 views

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ios - How to differentiate between iphone4 and iphone 3

I am trying to build a game for the iphone using cocos2d engine. I wanted to know how can I tell a ... appreciate the reply. Regards, Ankur See Question&Answers more detail:os...

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

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220 views

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ios - How to read data structure from .plist file into NSArray

I was creating a data structure manually using the following: NSDictionary* league1 = [[NSDictionary alloc] ... please! Thank you kindly See Question&Answers more detail:os...

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

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361 views

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ios - How big should a UIBarButtonItem image be?

I'm looking to create my own custom Sort By Date and Sort By Number buttons that I plan on placing in the ... the size the image should be. See Question&Answers more detail:os...

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

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387 views

1 answer

ios - How to check if a file exists in the Documents directory in Swift?

How to check if a file exists in the Documents directory in Swift? I am using [ .writeFilePath ] method to ... will be much appreciated. Cheers See Question&Answers more detail:os...

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

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