Recent questions tagged IOS

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ios - UITableview reloaddata with animation

I have a UITableView which is populated from array and a drop down list. If I select any ... withRowAnimation:UITableViewRowAnimationNone]; } 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 to retrieve iPhone IDFA from API?

I would like to get the device IDFA. How to get this info from iOS official API ? See Question&Answers more detail:os...

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

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680 views

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ios - NSAttributedString add text alignment

How can I add text alignment attribute to an NSAttributedString to center the text? Edit: Am I doing anything ... , nil] range:_selectedRange]; See Question&Answers more detail:os...

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

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411 views

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ios - Obtain Bundle Identifier programmatically

How can I obtain a string of the Bundle Identifier programmatically from within 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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ios - Simple way to show the 'Copy' popup on UITableViewCells like the address book App

Is there a simple way for subclasses of UITableViewCell to show the 'Copy' UIMenuController popup like in the Address ... ? (source: icog.net) See Question&Answers more detail:os...

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

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344 views

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ios - Xcode attempted to locate or generate matching signing assets and failed to do so

So I'm trying to create an ad-hoc build using existing provisioning profile (that worked before) with Xcode 6 ... a better solution? 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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454 views

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ios - Xcode 6.3 freezes/hangs after opening XIB file

After upgrading to Xcode 6.3 (release version), Xcode now freeze every time I open a XIB/Storyboard file ... better work around or solution? See Question&Answers more detail:os...

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

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620 views

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ios - Remove alpha channel in an image

I have an app icon for iOS but Apple doesn't allow alpha to be in the image. How to remove this alpha ... my friend did the image for me. 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 - Difference between leftAnchor and leadingAnchor?

I have been working with constraints in Swift for iOS, and most of the naming conventions/documentation ... between these properties? See Question&Answers more detail:os...

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

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281 views

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ios - How to Get the Title of a HTML Page Displayed in UIWebView?

I need to extract the contents of the title tag from an HTML page displayed in a UIWebView. What is the ... method above will always work. See Question&Answers more detail:os...

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

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461 views

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ios - Case insensitive comparison NSString

Can anyone point me to any resources about case insensitive comparison in Objective C? It doesn't seem to ... to str1.equalsIgnoreCase(str2) 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 to rotate a flat object around its center in perspective view?

What I'm trying to do seems like it should be easy enough: I created a 2D top-down view of an old ... completely and then animate the other). See Question&Answers more detail:os...

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

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285 views

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ios - Can I set the `attributedText` property of `UILabel`

Can I set the attributedText property of a UILabel object? I tried the below code: UILabel *label = [[ ... <CoreText/CoreText.h> not working See Question&Answers more detail:os...

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

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393 views

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ios - Provisioning profile for Today Widget extension

I am trying to archieve my app for submission however I am running into issues with code signing. Basically ... profile to 'Automatic'. See Question&Answers more detail:os...

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

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462 views

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ios - Scroll to top of UITableView by tapping status bar

I know there's tons of code out there to scroll a tableview to the top, but I want to do this when the ... 's native apps. Is this possible? See Question&Answers more detail:os...

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

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268 views

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ios - How can I check what is stored in my Core Data Database?

I am making an app that relies on Core Data. I am able to enter data into a text field and store it. ... stored in the app's CoreData database? See Question&Answers more detail:os...

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

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647 views

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ios - Core Data: NSPredicate for many-to-many relationship. ("to-many key not allowed here")

I have two entities named "Category" and "Article" which have a many to many relationship. I want to form ... to retrieve the desired 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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307 views

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ios - Remove all constraints affecting a UIView

I have a UIView which is placed on the screen via several constraints. Some of the constraints are owned by ... the entire list of ancestors. 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 - How to change the background color of UIStackView?

I tried to change the UIStackView background from clear to white in Storyboard inspector, but when simulating, the ... color of a UIStackView? See Question&Answers more detail:os...

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

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426 views

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ios - Measuring tilt angle with CMMotionManager

Suppose you are holding an iphone/ipad vertically in front of you with the screen facing you, in portrait ... me to a worked example? See Question&Answers more detail:os...

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

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652 views

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ios - Can an Xcode .mobileprovision file be 'installed' from the command line?

I'm trying to automate the process of building apps for our clients using bash scripts running on a Mac Mini ... command won't 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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389 views

1 answer

ios - UIBarButtonItem with custom image and no border

I want to create a UIBarButtonItem with a custom image, but I don't want the border that iPhone adds, ... ? UIBarButtonItem ? thanks, regards, See Question&Answers more detail:os...

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

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445 views

1 answer

ios - SourceKitService Consumes CPU and Grinds Xcode to a Halt

This is NOT a Beta issue. I am on Xcode 6.0.1, production release. The issue I am having is that when I ... as to what the problem could be? See Question&Answers more detail:os...

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

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644 views

1 answer

ios - Error after renaming Xcode 6 project: "linker command failed with exit code 1 (use -v to see invocation)"

So after I create an Xcode 6 project, even if I haven't written any code in it, if I try renaming it by ... t exist. What am I doing wrong? See Question&Answers more detail:os...

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

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345 views

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ios - How to use Swift documentation comments

I have a few questions about Swift documentation comments: Is there a way to make a Related declarations section ... . Does XCode have 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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339 views

1 answer

ios - Why does UITableViewCell remain highlighted?

What would cause a table view cell to remain highlighted after being touched? I click the cell and can see ... the cell is still highlighted. See Question&Answers more detail:os...

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

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461 views

1 answer

ios - "changing property masksToBounds in transform-only layer, will have no effect" in Xcode 7

I am receiving this warning in the debugger console when I launch my app on iPad Xcode 7 beta 6. There was ... anyone found a solution for 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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326 views

1 answer

ios - What is the default height of UITableViewCell?

I thought this information would have been easier to find :-) What is the default height of a UITableViewCell? It ... I'd prefer to be sure. See Question&Answers more detail:os...

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

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