Recent questions tagged iOS

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Background With Swift, I'm trying to fetch HTML via URLSession rather than by loading it into a ... .html?utm_hp_ref=japan&ir=Japan 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 - UICollectionView remove section breaks with UICollectionViewFlowLayout

I have a dataset that is divided into multiple sections, however, I'd like to display this in a ... achieve something like this. 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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ios - when redirect with code 302, WKWebView cannot set cookie

I sent request to url1. url1 will redirect to url2 with cookie. url2 is for authorization. And I get code ... a workaround? 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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ios - Undestanding UIBezierPath curving mechanism, controlPoint and the curve point

I'm trying to draw a simple Parabola shape using UIBezierPath. I have a maxPoint and a boundingRect of which I'm ... in, how can I solve 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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573 views

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ios - Resume Background Audio After Playing Sound With AVAudioPlayer

I am looking for a way to resume audio played by another application after my application plays its own sound ... and then resume the music. See Question&Answers more detail:os...

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

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515 views

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ios - Detecting the bottom "bounce" of UITableView

I have a table view that performs an animation when the user scrolls down on a UITableView (push thumb up) and a ... I just cant figure it out. See Question&Answers more detail:os...

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

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283 views

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ios - setNeedsDisplayInMapRect doesn't trigger new drawMapRect: call

I'm using a custom MKOverlay/MKOverlayView to completely cover the Google basemap with my own tiles, which are ... this is likely the 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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ios - BLE device keep connect with iPhone when application terminate

I got a problem with BLE on iOS. My case as below: I'm developing application connect to device BLE 4.0. ... this help? Thanks for your support! 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 - OpenGL ES 2.0 Vertex Transformation Algorithms

I'm developing an image warping iOS app with OpenGL ES 2.0. I have a good grasp on the setup, the ... of algorithm should I apply 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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ios - How can I address an app that started earlier, but is "Terminated due to Memory Pressure" now?

I am working on an iOS app in Xcode. Earlier I got it to start and run, up to a limited level ... is this excessive memory consumption? 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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382 views

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ios - Include non-ARC library in an ARC app?

So, is it possible? I get this error multiple times: ARC forbids Objective-C objects in structs or unions ... ; } _field2; } XXStruct_CKAdxD; 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 - Close app when internet is not available

I want to close my app when an Internet connection is not available. I check that, but how can I create an alert, and then close my app? See Question&Answers more detail:os...

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

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711 views

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ios - Cannot assign to value: 'i' is a 'let' constant in swift

So basically i am trying to assign 2 random numbers up to 20 in 2 labels and the user will have to find the correct ... ", sender: self) } } } See Question&Answers more detail:os...

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

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723 views

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ios - Ping a Website or an IP Address (or Check if a Website is Online) using Swift 4?

I have been searching since yesterday for a simpler solution to just ping a website & check if it returns 200 in ... & check if it returns 200? 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 - SpriteKit SKPhysicsBody bodyWithTexture is Upside Down

Hi I'm trying to fix this bug with spritekit's physics shape appearing upside down. [SKPhysicsBody ... monsters circle physics shapes. 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

1 answer

ios - How can I restrict my app for iPhone's only, excluding iPod touch?

How can I restrict my app for iPhone's only, excluding iPod touch ? I don't want my app available on ... during the setup on itunesconnect ? See Question&Answers more detail:os...

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

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475 views

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ios - UITextView - adjust size based on the content in SwiftUI

I am trying to figure out how to make UITextView size dependent on it's contents in SwiftUI. I wrapped the ... point me in a correct direction. See Question&Answers more detail:os...

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

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395 views

1 answer

ios - How to use custom icons with mapKit framework?

I am using the MapKit framework to load google maps on my application and I place on map 4 "simulated" places ... the samples I already found. See Question&Answers more detail:os...

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

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386 views

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ios - run-time vs. compile-time iPhone version check

What's the difference between run-time, e.g., [[UIDevice currentDevice] systemVersion], and compile-time, e ... if iOS version supports library? See Question&Answers more detail:os...

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

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369 views

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ios - XCode 4.3.1 breaks validation of apps with directories added by reference. Any workaround?

I've discovered that Xcode 4.3.1 has a serious issue validating apps with resources within a directory tree ... identity you selected is valid) See Question&Answers more detail:os...

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

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822 views

1 answer

ios - How to add custom view on right of navigation bar Swift?

I am trying to add a custom view on right of UINavigationBar. What I tried is the ... rightBarButtonItem?.customView = viewOnrightButton See Question&Answers more detail:os...

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

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438 views

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ios - Cannot subscript a value of type '[NSObject : AnyObject]?' with an index of type 'String'

ERROR: Cannot subscript a value of type '[NSObject : AnyObject]?' with an index of type 'String' CODE ... ") println(apples[appleId]) See Question&Answers more detail:os...

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

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713 views

1 answer

ios - Truncate string containing emoji or unicode characters at word or character boundaries

How can I truncate a string at a given length without annihilating a unicode character that might be smack in the ... )]; return statusString; } See Question&Answers more detail:os...

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

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574 views

1 answer

ios - No "Done" button on AVPlayerViewController

I am using AVPLayerViewController to stream content. Playback works fine but I don't see "Done" button to ... it on a navigationcontroller? See Question&Answers more detail:os...

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

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439 views

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ios - Categories in Objective-C aren't working

I'm developing an iOS application that needs to deploy to iOS 3.1.3. I need to extend some of the ... get this selector to work. 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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339 views

1 answer

ios - Blue banner '%MyApp% is Using Your Location' for app that uses location services only when active

In my app I'm updating user location every time when app becomes active. I stop CLLocationManager once ... features that require location. See Question&Answers more detail:os...

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

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494 views

1 answer

ios - How do I get the tap coordinates on a custom UIButton?

I'm using XCode 4.4 developing for iOS 5 on an iPad and am using the Storyboard layout when creating my ... as simple as possible. 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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486 views

1 answer

ios - Sending local notifications after the app has been terminated

I am making an app in iOS where it will send local notifications on a timer. It works fine when the app ... has happened? 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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