Recent questions tagged iOS

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I'm using the following code, to detect auth provider and log out properly static func logOut() { let auth = ... m using Firebase SDK 3.5.2 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 init of UIViewController from storyboard

I tried finding some relevant questions but couldn't get anything, hope someone can help. I set up some ... using let instead of var. 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 - IBDesignable View Rendering times out

I've been working on an app on and off for a few months starting with the first XCode 6/iOS 8 beta release ... remote clue on how to solve 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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ios - Share image with hashtag via UIActivityViewController (Twitter, Facebook, Instagram)

I am attempting to share an image with a hashtag using UIActivityViewController and I am encountering some strange behavior ... 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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ios - Difference between launch image and splash screen

I was going through iOS Human Interface Guidelines. It was mentioned as Display a launch image that closely resembles ... and a splash 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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ios - creating border for uitableview

I am using a uitableview and scrollview in a uiview. How to set a border for table or scrollview? 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 override both initWithFrame: and initWithCoder: in subclass of UIView?

I'm trying to subclass UIView. I already have some designated initializer and I want to have possibility for my custom ... no way to 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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ios - Overlapping Views in UIStackView

I have an horizontal stack view that I added arranged sub views to it (7 cells). Each one of the cells in ... suggestion how to do it? 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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280 views

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ios - Missing Retina 4 launch image. How to ignore this error?

Updating Xcode with SDK 6.0 gives you an error when trying to compile your project. Missing Retina 4 launch ... -retina-4-launch-image.html 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 - Objective-C: UIDatePicker UIControlEventValueChanged only fired on second selection

Working with UIDatePickers for the first time. To start, I'm just trying to update a text field with whatever value ... effect. What's going on? 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 - Purpose of Synthesize

I am using an iOS5 book to learn iOS programming. @synthesize coolWord; ^synthesize is used for all properties in ... for the clarification. :) See Question&Answers more detail:os...

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

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350 views

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ios - Firebase Cloud Messaging Doesn't Create Push Notifications but Gets Information

I was working through this tutorial (https://www.youtube.com/watch?v=JsWHzU1DxjM) to try and put push ... .KingOfTheTown, from: 302278087187] See Question&Answers more detail:os...

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

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340 views

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ios - Memory write performance - GPU CPU Shared Memory

I'm allocating both input and output MTLBuffer using posix_memalign according to the shared GPU/CPU documentation ... to cblas_scopy(). See Question&Answers more detail:os...

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

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548 views

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ios - List available output audio target AVAudioSession

I need to list the audio outputs available to an iOS application. My question is similar to this one ... .myMPVolumeView.showsVolumeSlider = NO; See Question&Answers more detail:os...

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

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361 views

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ios - How to increase selection area of UIButton?

I have made the UIButton programmatically togglebutton = [UIButton buttonWithType:UIButtonTypeCustom]; togglebutton.frame = ... this issue. See Question&Answers more detail:os...

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

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318 views

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ios - Is there Android Intent concept in iPhone SDK

Just switching from Android to iPhone. In Android I can make several apps and use a tabView to call each app ... , I really appreciate. 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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397 views

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ios - Generic type constraint for numerical type only

I'm trying to figure out how to implement a type constraint for a generic class (in Swift) that will limit the ... string. Thanks for any 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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471 views

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ios - Swift override instance variables

I know this answer has already been posted in some other form here, but I'd like to understand more about ... ). Any suggestions are welcomed. See Question&Answers more detail:os...

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

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277 views

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ios - What is the purpose of XCTestCase's setUp method?

Per the comment within the default template for XCTestCase regarding setUp : Put setup code here; it will be ... once within an XCTestCase? See Question&Answers more detail:os...

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

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301 views

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ios - Possible to play video using a subclass of NSURLProtocol, using either MPMovieController or AVFoundation?

I'm currently trying to play a video to a URL that has the custom scheme defined in a custom ... from the defined NSURLProtocol subclass? 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 - NSOperationqueue background, download images

I created a NSOperationQueue to download images (from Twitter for Cell): NSOperationQueue *queue = [[NSOperationQueue alloc ... } return Cell; } See Question&Answers more detail:os...

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

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543 views

1 answer

ios - Swift - Dynamic UITableViewCell size based on image aspect ratio

I'm trying to create dynamically sized UITableViewCells, changing the height based on the aspect ratio of an image ... it's being initialized. See Question&Answers more detail:os...

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

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440 views

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ios - Use a UITabBar without UITabBarController to control a UIWebView

I want to use a UITabBar to let the user navigate a single UIWebView. Is this possible or would I be ... , the way UITabBar natively does? See Question&Answers more detail:os...

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

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337 views

1 answer

ios - Is there any way to breakpoint all the button touchUpInside method?

Sometime it happens when you got project with very unmanaged code so you can't figure out how to solve a ... breakpoint on xcode project ? See Question&Answers more detail:os...

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

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816 views

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ios - Update Badge Number when push notification is received when App is not Open

I have an App in which i am facing the issue that the badge number only gets updated when i open the ... anyone help me with 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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396 views

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ios - How can I remove a view from navigation controller

I want to call a new view controller and remove the current view controller from the navigation controller stack. For ... be A, C. 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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399 views

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ios - Add inverted circle overlay to map view

(Using iOS 5 and Xcode 4.2.) I've followed the instructions here: http://developer.apple.com/library/ios/ ... Thank you for your 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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617 views

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ios - NSAttributedString initWithData and NSHTMLTextDocumentType crash if not on main thread

calling NSAttributedString * as = [[NSAttributedString alloc] initWithData:[htmlString dataUsingEncoding:NSUTF8StringEncoding] ... :( See Question&Answers more detail:os...

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

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