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    I have a piece of code. I am not getting whats going inside in this code. Can anybody explain it? let wordFreqs = [ ... Gives Output: ["k","a"] See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    It looks like the refs of views in is hard to be directly accessed. Now I have a list view with a cells. In ... in the row.). Thank you! See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have set a custom .aif 30 second file as the local notification sound name. And below is my code for scheduling the ... it was of no 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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    That's my scenario: 1) I am developing an iOS app that uses Firebase storage. 2) My app has custom ... them unclear about this particular 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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    I'm using a UICollectionView to show several sections of data. These sections have a fixed number of items. I want all ... : 20, 20, 10, 10 See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to remove overlays from map. func removeMapOverlay() { var removeOverlays : [AnyObject]! = self. ... exception like I explain above. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want download sound from url and play it once: let sound = SKAudioNode(url:URL(string:"http://www ... uncaught exception of type NSException See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I successfully open Iphone default app with current user location but if user has selected a different language (e.g. ... ? thanx 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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    Is there a way that I could reverse and export .m4a audio file? I found a solution to reverse an audio track here ... ? } } CFRelease(buffer); } See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a UINavigationController which contains a UITableViewController. This navigation controller pushes other ... my options. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have three view controllers, all with two buttons each on the right and left sides of the navigation ... to the destination view controller. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Let's say I have a text called: This. I want to figure out the width of the text called This so that I ... #>, alignment: <#T##Alignment#>) } } See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a UIScrollView Labels Labels UICollectionView I have disabled the UICollectionViews scrolling functionality, so I ... /hDwPH/ Dummy code See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want to animate the position of a UISearchBar, but there's no animate effect when I change the frame or bounds ... a bug? I'm confused... See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am receiving some json data in my app: NSMutableDictionary *json = [NSJSONSerialization JSONObjectWithData:jsonResponse ... read this value? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm starting with React Native development and I encountered an issue in the very beginning. When trying to run ... know where to go from 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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    I hear that iOS7 introduced this functionality with CBCentralManager but can't find how. Is possible? ... widthout use GKPeerPickerController? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'am using zbar in my application. If I want to run it on my iPhone 5s with an 64 bit processor, I get ... the library is going to be updated. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I've read that Game Center Leaderboard scores are only updated when the newly posted score is greater than the ... it is greater or smaller? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a use case where my objective-c application needs to immediately use iBeacon after it's been terminated in ... am I doing wrong 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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    I don't totally understand what registering a class for cell reuse does. I understand how we use ... forCellReuseIdentifier:CellIdentifier]; } See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    When your iPhone receives a WhatsApp/Telegram push notification e.g. wife: "buy pizza" Question1: Is it that ... : Is that conclusion correct? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    How can I create an empty collection in Firestore (Swift)? i want to do that when I create DB users after I ... 't exists and I get a crash See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Say I have a string, and I want to change the first "a" in that string to an "e" in order to get the ... 've got this whole method wrong. 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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    I am asking permission to access my contacts using the code below. ABAddressBookRef addressBookRef = ... sort of cache? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm getting some odd animation behaviour with DatePickers in a SwiftUI form. A picture is worth a thousand ... to provide anything else required See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I believe I have found a bug in the JSONDecoder. If one tries to decode a JSON object with more than 8 ... .3 Thanks for all 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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    My alert looks like this: Is it possible to make inputs bigger and add space between them? Here is a snippet ... textField.frame = oldFrame }) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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