Recent questions tagged objective

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662 views

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objective c - dismissing the keyboard from a UITextField,UITextView as a subview of UIScrollView?

I have an application with UIScrollView added as a subview of UIView. i have added UITextField,UITextview as a subView ... 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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651 views

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objective c - iphone imagepickerController picking video from photo library

I am now trying to implement a app like picking image and video from device photo album and uploading it to ... :ipc animated: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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611 views

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objective c - Center UIButton programmatically

I have a UIButton which i add programmatically. No problems here, it stetches as it should and looks good ... ]; return footerView; } See Question&Answers more detail:os...

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

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658 views

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objective c - Refresh NSManagedObjectContext

I am writing a WatchKit extension for an iPhone application. I share Core Data using App Groups. This is ... NSManagedObject doesn't support it. See Question&Answers more detail:os...

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

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497 views

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objective c - Simple Passing of variables between classes in Xcode

I am trying to do an ios app but I am stuck at passing data between classes . This is my second app . The ... that i pressed to the next 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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723 views

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objective c - iOS - passing arguments in action:@selector()

I'm adding a button to a UITableViewCell programmatically. The method to be run when the button is pressed is ... Thoughts? Thanks in advance. See Question&Answers more detail:os...

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

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519 views

1 answer

objective c - Fetch aggregate data from NSManagedObject using another expression as argument to sum: expression

Is it possible to use expression as argument for sum: expression? I have entity (NSManagedObject class) Drink ... argument for sum: expression? See Question&Answers more detail:os...

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

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455 views

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objective c - iOS iBeacon / Bluetooth connectivity when app is dead and gone

What I need: A predictable, solid and reliable way of launching iBeacon delegate methods such as ... localizedDescription); } @end See Question&Answers more detail:os...

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

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470 views

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objective c - Should I prefer to use literal syntax or constructors for creating dictionaries and arrays?

I am reading through the iOS Developer Guide to get familiarized with the Objective-C language and currently ... matter of personal preference? See Question&Answers more detail:os...

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

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650 views

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objective c - setNeedsDisplay, drawRect or CALayer causing dispatch_continuation_alloc_from_heap malloc memory leak iOS

I'm experiencing a memory leak in my application and it seems to originate from CALayer. It looks as though ... update my view visuals? 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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824 views

1 answer

objective c - NSPredicate on array of arrays

I have an array, that when printed out looks like this: ( ( databaseVersion, 13 ), ( lockedSetId, 100 ) ) ... on how this might be done? See Question&Answers more detail:os...

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

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545 views

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objective c - UIViewControllerTransitioningDelegate method not called in iOS 7

I have created a custom transition animation for a modal view controller by implementing the methods in the ... :YES completion:nil]; See Question&Answers more detail:os...

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

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843 views

1 answer

objective c - mouseDown: not firing in WebView subclass

I think this should be quite simple, but I cannot make it work. I want to detect mouse clicks on a WebView... ... called... 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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568 views

1 answer

objective c - not able to use Google map sdk in ios

I am working a simple iOS app into which I am integrating Google Maps. but not getting any result . i ... simulator screen after running apps. See Question&Answers more detail:os...

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

0 votes

559 views

1 answer

objective c - Why am I getting this CPSqliteStatementPerform error in xcode console

I am getting the following errors in the xcode console, but I don't know what read only data base it is ... and how do I correct this? See Question&Answers more detail:os...

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

0 votes

717 views

1 answer

objective c - Resize UITableViewCell content when delete button shows up

Is there any way to use autoresizing masks to move my content so that the delete button doesn't cover it up? ... that I can do this manually? See Question&Answers more detail:os...

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

0 votes

657 views

1 answer

objective c - Saving a Video to the Photo Library - iPhone SDK

Is there any way for me to save a video in the Documents directory to the Photos Library? I have the link ... to the Photos app. Thanks, Kevin See Question&Answers more detail:os...

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

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679 views

1 answer

objective c - Writing text to a PDF via from an NSString

I am fairly new to iOS development and this one is killing me. I have not found one complete (simple) ... pdf I would sure appreciate it. See Question&Answers more detail:os...

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

0 votes

666 views

1 answer

objective c - Lifetime of weak local variables with ARC

If I have a piece of code that looks like this: - (void)testSomething { __weak NSString *str = [[NSString alloc ... .e. until the method exits)? See Question&Answers more detail:os...

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

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517 views

1 answer

objective c - Xcode6 Creating Fat Static Library iOS Universal Framework

Since the upgrade to Xcode and iOS8, I've been having trouble building a fat static library. There are some pretty ... what I am doing wrong? See Question&Answers more detail:os...

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

0 votes

629 views

1 answer

objective c - How to Extract AppleScript Data from a NSAppleEventDescriptor in Cocoa and Parse it

What I'm doing is executing an AppleScript inside of Cocoa. It returns some data as a NSAppleEventDescriptor, which NSLog ... 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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1.0k views

1 answer

objective c - Does the DropBox app on iOS have a URL scheme?

I would like to be able to launch the DropBox app within my app. Therefore I would like to ... UIApplication sharedApplication] openURL:myURL]; See Question&Answers more detail:os...

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

0 votes

619 views

1 answer

objective c - IOS embed font in PDF

I am drawing a PDF file and cannot figure out how to embed the font into the PDF itself, could anyone ... Any help would be much appreciated! See Question&Answers more detail:os...

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

0 votes

721 views

1 answer

objective c - Make subview rotate too when device is rotated iPhone/iPad

Let me explain what I mean when I say that I want to rotate my subview too. I placed a lot of images to make my ... as well. How can I do that? See Question&Answers more detail:os...

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

0 votes

935 views

1 answer

objective c - CFNotificationCenter usage examples?

I'm still quite new to this but I've been learning really quickly with the help of examples. I'm ... ? Any help is greatly appreciated! See Question&Answers more detail:os...

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

0 votes

774 views

1 answer

objective c - Is it possible to detect the current keyboard input method on the iPhone?

I want to know the current input method the user is typing in such as En ( ... TextAndWebiPhoneOS/KeyboardManagement/KeyboardManagement.html See Question&Answers more detail:os...

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

0 votes

720 views

1 answer

objective c - Play youtube videos in fullscreen auto

I am trying to play a youtube video using youtube embedded player in my ipad app. I want that as ... or documentation supporting this decision. See Question&Answers more detail:os...

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

0 votes

746 views

1 answer

objective c - How to determine Internet Connection in Cocoa?

I need to determine if Internet Connection is available or not. I don't care how it is connected (WI ... Internet). Something like (isConnected) See Question&Answers more detail:os...

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

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