Recent questions tagged IOS

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ios - Xcode 8 UIButtons with constraints not showing up

Everything used to work great until yesterday I updated Xcode to version 8. If I don't use any ... add any constraint they disappear. 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 - UIImageView: Change size to image size?

I've an UIImageView with content mode Aspect Fit of size 220x155. I'm dynamically inserting different images in different ... How can I do 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 - Resize UITableViewCell to UILabel's height dynamically

I want to resize cell's height according to the label's height and label's height according to text. Or ... to the text entered in UITextView? 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 - Can't get access to string localizations in UI Test (Xcode 7)

So I have a situation in which I have a few textFields that are validated. I'm trying to run a UI test, ... of the alert which seems backwards. 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 do you animate the sublayers of the layer of a UIView during a UIView animation?

In a UIView animation for a view, you can animate its subviews being laid out by including ... it should just appear. See Question&Answers more detail:os...

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

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262 views

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ios - Blurry UILabel when added programmatically

I am adding a UILabel to a view meant for loading purposes. However, it gets blurry after I added it. The ... 2]; [view addSubview:loadingText]; See Question&Answers more detail:os...

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

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662 views

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ios - How to detect touch on NSTextAttachment

What is the best way to detect when user taps on NSTextAttachment on iOS? I think that one of the ... not invoked when textView.editable=YES See Question&Answers more detail:os...

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

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532 views

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ios - UIButton with hold down action and release action

I want to create a UIButton that can be held down, when held down it calls the "hold down" action ... is based on UIBUtton+block implementation See Question&Answers more detail:os...

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

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367 views

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ios - How to implement UISearchController with objective c

I have an existing app, written in objective-c, with a table view. I am now trying to go back to ... an existing objective-c app tableview. See Question&Answers more detail:os...

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

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263 views

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ios - Cutting MPEG-TS file via ffmpegwrapper?

I have MPEG-TS files on the device. I would like to cut a fairly-exact time off the start of the ... completionBlock:completionBlock]; }); } See Question&Answers more detail:os...

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

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359 views

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ios - How do I find out the current keyboard used on iOS8?

You can get a list of the keyboards installed on the iOS device using: NSUserDefaults *userDeafaults = [NSUserDefaults ... there a way to tell? 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

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ios - How do I validate TextFields in an UIAlertController?

Can anyone tell me how to validate UITextFields inside of a UIAlertController? I need it to prevent the user from ... testStr) } return false } See Question&Answers more detail:os...

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

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357 views

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ios - Use swift package manager on existing xcode project

im new to the swift and xcode world, so i'm having a problem trying to integrate a package to my project. I want ... .git", majorVersion: 4) ] ) See Question&Answers more detail:os...

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

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297 views

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ios - "Stream is sending an event before being opened"

I'm trying to make a SOAP request with Swift. Running the latest Xcode/iOS as of 9/9/14. I use ... data self.transactionData?.appendData(data) } See Question&Answers more detail:os...

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

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328 views

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ios - Why is instancetype used?

Can someone please explain to me (in simple terms) why an instancetype is used in Objective-C? - ( ... initialization } return 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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439 views

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ios - UIApplication.sharedApplication not available

I'm trying to get a reference to my app delegate from a UIViewController but I keep getting an this error message: ... fine. What am I missing? See Question&Answers more detail:os...

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

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383 views

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ios - image for nav bar button item swift

I want to display an image in the left hand side of my nav bar in swift. I have tried adding a ... expression is ambiguous without more context. See Question&Answers more detail:os...

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

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504 views

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ios - Use Bezier Path as Clipping Mask

I am wondering if it is possible to clip a view to a Bezier Path. What I mean is that I want to be able ... ; }]; Thanks for the help already. 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 - setStatusBarHidden not working

In my UIViewController, I have: - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; [[ ... app delegate, I see: 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 - Swift: Make button trigger segue to new scene

Alright, so I have a TableView scene and I'm going to put a button in each of the cells and I need each ... I haven't written any code yet. See Question&Answers more detail:os...

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

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972 views

1 answer

ios - Why is viewDidLayoutSubviews called multiple times?

I'm developing iOS Universal App with Swift, using auto layout and support only portrait. I found ... information will be 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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259 views

1 answer

ios - How to scroll UITableView in Storyboard editor of Xcode 5?

Storyboard had great feature to design tables of static cells. Until XCode 5 is was possible to compose long list ... tables of static cells... See Question&Answers more detail:os...

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

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410 views

1 answer

ios - How might one force-show the mobile Safari bottom nav bar to show programmatically?

I have a fixed button for a CTA (call to action) at the bottom of my web page. Scrolling down the ... toolbar when bottom of viewport is tapped See Question&Answers more detail:os...

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

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261 views

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ios - How to go about adding a link/reference to another method in documentation Xcode?

I am adding some description to my method in class. This is how I achieved this: And it looks like this ... , any help will be 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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419 views

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ios - Change Carthage Swift version

Is it possible to change Carthage Swift version used to build the frameworks? I'm trying to migrate my project ... Any help will be 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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340 views

1 answer

ios - Linking a new viewcontroller to Storyboard?

There is probably a simple solution but I can't figure it out. I am using storyboards for the interface. I start ... purpose. run No label... See Question&Answers more detail:os...

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

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478 views

1 answer

ios - Offsetting UIRefreshControl

I am currently using a JASidePanel for my application and I have a UITableViewcontroller with a UIRefreshControl as ... panel visible. 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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335 views

1 answer

ios - How to remember rows selected and maintain them after reload by default in UITableView?

How can I set a row selected by default? I want to select a row , take the number of selected row with ... reloadData]; default: break; } } See Question&Answers more detail:os...

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

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