Recent questions tagged ios

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ios - How to apply a tintColor to a UIImage?

I have a UIImage that is a small symbol that is all black. The UIImage is getting set in ... :defaultImageName] forState:UIControlStateNormal]; 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 - Swift : missing argument label 'xxx' in call

func say(name:String, msg:String) { println("(name) say (msg)") } say("Henry","Hi,Swift") <---- ... t see any explain in iBook Swift tutorial. 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 - ipad: Drag a UITableViewCell from one UITableViewController and drop it into another

my question is, wether or not this is possible, and if so, how would you approach this task? Does anybody ... me directions or clear things up. 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 - Reading long characteristic values using CoreBluetooth

I have a characteristic value which contains the data for an image. In the peripheral I setup the value like this: ... what I'm doing wrong? 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 - Rails shows "WARNING: Can't verify CSRF token authenticity" from a RestKit POST

When I try to POST from RestKit, there is a warning in Rails console: Started POST "/friends" for 127.0.0.1 ... can I get rid of the warning? 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 - Find city name and country from latitude and longitude in Swift

I'm working on application in Swift3 and I have letter problem i can't find the answer for it. How can I know ... : true, completion: nil) } } 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 - What are the device-width css viewport sizes of the iPhone6 and iPhone 6 Plus

The iPhone 6 and iPhone 6 Plus were just announced. But as usual, phone specs never give the meta ... landscape viewport-width in pixels. 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 - UICollectionview Scrolling choppy when loading cells

I have a gallery in my app utilizing a UICollectionView. The cells are approximately 70,70 size. I am using ... them in a faster fashion? 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 debug "Invalid Bundle" error which happens only after submitting to app store

I have a lot of frameworks in my app. App works fine in adhoc/enterprise release. Only if I submit to the app ... here. How can I debug it? 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 - UISearchBar change placeholder color

Has anyone any idea or code sample on how can I change the text color of the placeholder text of a UISearchBar? 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 - UITextView starts at Bottom or Middle of the text

I'll get right to it. I have a UItextView placed in my view that when needs to scroll to see all the ... applicable here. Thanks for your help. 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 - Can I change the size of UIActivityIndicator?

Whatever size i give to it while allocation, it shows fixed size only. Is it ... = UIActivityIndicatorViewStyleWhiteLarge; See Question&Answers more detail:os...

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

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148 views

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ios - How to apply filter to Video real-time using Swift

is possible to apply filter to AVLayer and add it to view as addSublayer? I want to change colors and add ... ? Thanks for every suggestion.. See Question&Answers more detail:os...

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

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374 views

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ios - UICollectionView sticky header in swift

I'm trying to create a sticky supplementary header, which stays on top all the time and won't response to ... to have an example in Swift. See Question&Answers more detail:os...

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

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135 views

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ios - Open Specific View when Opening App from Notification

I have just added push notifications to my app. I'm wanting to have so that when a user opens the app ... :self startImmediately:YES]; } - (id)initWithStyle:(UITableViewStyle)styl...

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

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416 views

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ios - Watch os 2.0 beta: access heart beat rate

With Watch OS 2.0 developers are supposed to be allowed to access heart beat sensors.... I would love to ... link or info 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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234 views

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ios - Getting video snapshot for thumbnail

I am recording a video from the iPhone camera by using the AVCam code provided from apple. After the video ... alloc] initWithCGImage:imgRef]; } See Question&Answers more detail:os...

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

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637 views

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ios - Can't set headers on my WKWebView POST request

I want to do a POST request to my WKWebView but the headers doesn't get set when I monitor the requests with ... were sent. Thanks for any help. See Question&Answers more detail:os...

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

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424 views

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ios - How do I hide/show tabBar when tapped using Swift in iOS8

I am trying to mimic the UINavigationController's new hidesBarsOnTap with a tab bar. I have seen many answers ... a separate question though. See Question&Answers more detail:os...

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

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252 views

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ios - How do you keep an iPhone/iPad web app in full screen mode?

I have an HTML5 iPad app that works offline. The app essentially consists of 4 html files and 3 aspx files. ... are the problem in my situation. 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

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ios - How to know if NSAssert is disabled in release builds?

I often saw "assert " in iOS code, I google it, and got to know it assert true or false. I want to ... this will auto disable in release mode? See Question&Answers more detail:os...

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

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301 views

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ios - How to change color of UITableViewCell when selecting?

I have a menu like so: The normal (unselected) state for each cell is an image, the selected state is also ... this, I'd really appreciate it. See Question&Answers more detail:os...

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

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150 views

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ios - Get search bar in navigation bar in Swift

So I've tried everything trying to get a search bar into the navigation bar in Swift. But sadly I haven't gotten it ... bar.... :( 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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145 views

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ios - ~= operator in Swift

I recently downloaded the Advanced NSOperations sample app from Apple and found this code... // Operators to use in ... it before. What is it? See Question&Answers more detail:os...

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

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212 views

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ios - How do I create a release build in Xcode?

Why is it that when I build an application, Xcode creates a debug build? I want to create a release build. How can I do 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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553 views

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ios - FBSDKCoreKit/FBSDKCoreKit.h not found error

I am implementing FB Login so i Downloaded the SDK from https://developers.facebook.com/docs/ios. then i drag n ... i do to solve this error? See Question&Answers more detail:os...

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

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494 views

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ios - Should I git ignore xcodeproject/project.pbxproj file?

in a XCode project, I offen got xcodeproject/project.pbxproj file changed, but useless info for me ... /UserInterfaceState.xcuserstate file? See Question&Answers more detail:os...

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

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234 views

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ios - No identities are available for signing Xcode 5

I have an error "No identities are available for signing" when try to validate my app in Xcode 5. I tried all: ... can help me with this issue. See Question&Answers more detail:os...

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

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