Recent questions tagged iOS

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ios - Bringing a subview to be in front of all other views

I am working on integrating an ad provider into my app currently. I wish to place a fading message in front ... not be obstructed by anything? See Question&Answers more detail:os...

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

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516 views

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ios - Unselected UITabBar color?

I have an UITabBar with 5 items. I want to change the unselected color of all items. The items aren ... :[UIColor whiteColor]]; ? See Question&Answers more detail:os...

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

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254 views

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ios - Why does UIViewController extend under UINavigationBar, while UITableViewController doesn't?

I have UITabbarController with UINavigationController in it. I have a subclass of UIView that I assign as the view ... in the second view? 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 - Xcode 11 debugger is extremely slow - A known problem?

Since I updated to the latest Xcode version 11.0 (11A420a) the debugging is extremely slow and cumbersome. ... Are there any known solutions? 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 - CLLocationManager and accuracy issues - any experiences?

So I am dealing with some accuracy issues with iPhone GPS. I have an app which uses location. In the ... Comments and solutions appreciated :) See Question&Answers more detail:os...

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

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214 views

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ios - Find where object is retained with ARC

I have an object that is being retained more than necessary (most likely due to a property that is strong ... do something similar with ARC? 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 to use static constant and variable in Swift?

There are some posts for how to write code for static constant and static variable in Swift. But it is ... and variable. Can someone explain? See Question&Answers more detail:os...

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

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243 views

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ios - How can I loop through UITableView's cells?

I have n sections (known amount) and X rows in each section (unknown amount. Each row has a UITextField. ... solution to this please do advise. 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 - Using Predicate in Swift

I'm working through the tutorial here (learning Swift) for my first app: http://www.appcoda.com/search- ... equivalent for NSPredicate in Swift? 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 - in-app purchase in Swift with a single product

Is there a simple way to implement a in-app purchase in swift for a single product? I want a button ... the Swift StoreKit Framework. 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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202 views

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ios - Playing a video file from a server in Swift

I'm trying to play a video from a server using Swift. I have imported MediaPlayer framework, here is my ... video before going black again! 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 - How to set a custom view's intrinsic content size in Swift?

Background I am making a vertical label to use with traditional Mongolian script. Before I was just rotating a ... search keywords that I used. See Question&Answers more detail:os...

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

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485 views

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ios - Set UITableView content inset permanently

In my app I have a UISearchBar under UINavigationBar so it is always visible to user. In that case I ... happening to data inside UITableView? 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 - How to find out distance between coordinates?

I want to make it so that it will show the amount of distance between two CLLocation coordinates. Is there someway ... do it with a formula? See Question&Answers more detail:os...

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

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198 views

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ios - When to use UICollectionView instead of UITableView?

I found that UICollectionView is like an upgraded version of UITableView introduced in iOS6, but when should I ... is concerned? 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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202 views

1 answer

ios - how to get Distance of Object from iPhone camera using image Exif meta data?

Edit: Sorry for late Edit, Without two parameter you cannot calculate it, So first need to fill user Camera height ... ??? All Help are welcome See Question&Answers more detail:os...

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

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346 views

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ios - AFNetworking: Handle error globally and repeat request

I have a use case that should be rather common but I can't find an easy way to handle it with AFNetworking: ... while I'm using token auth. See Question&Answers more detail:os...

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

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235 views

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ios - topLayoutGuide in child view controller

I have a UIPageViewController with translucent status bar and navigation bar. Its topLayoutGuide is 64 pixels, as ... d consider a hack) See Question&Answers more detail:os...

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

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198 views

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ios - Xcode Unit Testing with Cocoapods

I've been banging my head against a wall with this for the last few days but despite multiple Google/SO/Github ... used. Which one is undefined 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 - Swift subclass UIView

I want to subclass UIView and show a login like view. I've created this in Objective-C, but now I want to port ... coder how can I "hide" 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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302 views

1 answer

ios - UICollectionView's cellForItemAtIndexPath is not being called

Only my second time using UICollectionView's and perhaps I have bitten off more than I can chew but nevertheless: I ... it is not being called? See Question&Answers more detail:os...

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

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512 views

1 answer

ios - How to dismiss keyboard when touching anywhere outside UITextField (in swift)?

I'm working on a project that have a UIViewController, on the view controller there is a UIScrollView and ... outside the textfield? 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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136 views

1 answer

ios - Objective-c - Getting least used and most used color in a image

Im trying to get the least used color, and the most used color from MP3 file's album artwork for a music ... most used color from an 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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195 views

1 answer

ios - UICollectionView with a sticky header

I found a blog on how to make sticky headers and it works great. Only thing is I don't think it takes into ... size }; } } return answer; } See Question&Answers more detail:os...

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

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328 views

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ios - Pod install displaying error in cocoapods version 1.0.0.beta.1

My podfile was working but after updating to cocoapods version 1.0.0.beta.1 pod install displays following error ... /encrypted-core-data.git' See Question&Answers more detail:os...

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

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266 views

1 answer

ios - drawRect circle and animate size/color

I am drawing a circle in the -drawRect: method of my UIView using the standard CGContextFillEllipseInRect() ... would be greatly 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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195 views

1 answer

ios - What is the difference between the app ID and the bundle ID? Where is the app ID in the Xcode project?

In the pList file, there is a bundle ID of the form com.mycompany.myapp, but Apple also provides an app ID on ... app ID in the Xcode project? See Question&Answers more detail:os...

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

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304 views

1 answer

ios - ScrollView and keyboard in Swift

I started creating a simple iOS app that does some operations. But I'm having some problems when the keyboard ... textfield to make it visible. See Question&Answers more detail:os...

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

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