Recent questions tagged objective

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objective c - converting timestamp to nsdate format

I want to convert my timestamp value 1308031456 to NSDate format (which yields the value Tue, 14 Jun 2011 ... between the two programmatically? See Question&Answers more detail:os...

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

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757 views

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objective c - Create NSDate from Unix timestamp

How do I create an NSDate from a Unix timestamp? channel.startDate = [NSDate dateWithTimeIntervalSince1970: ( ... SBJson parser library. See Question&Answers more detail:os...

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

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392 views

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objective c - Distinguish between an iPhone App crashing and being killed

Hello I am planning to develop a simple iPhone game. I would like to be able to distinguish between a ... app through the multitasking bar. See Question&Answers more detail:os...

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

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490 views

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objective c - NSTableView scrollRowToVisible with animation

I am trying to implement an action to scroll to the top of a NSTableView, and the bottom of the NSTableView. I am ... Is there a way to 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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582 views

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objective c - Using NSPredicate to filter based on multiple keys (NOT values for key)

I have the following NSArray containing NSDictionary(s): NSArray *data = [[NSArray alloc] initWithObjects: [ ... elegant if one exists? See Question&Answers more detail:os...

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

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527 views

1 answer

objective c - Modifying Table Headers on Mac

I've been able to find tutorials on modifying the table headers on iOS using UITableView - but havent been ... the appearance of tables? Zach 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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objective c - Why does my view move when I set its frame after changing its anchorPoint?

I made two instances of UILabel and added them to my ViewController's view. And then I changed the ... [self.view addSubview:uiLabel2]; See Question&Answers more detail:os...

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

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306 views

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objective c - How to dismiss UIPopover from a button in the Popover

I am trying to dismiss a UIPopoverViewControler from a button in the Popover. In addition I ... UIViewController<UIPopoverControllerDelegate> { See Question&Answers more detail:os...

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

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313 views

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objective c - iPhone Get UIImagePickerController Lat/Lng

I'm using the UIImagePickerController to take a photo and then upload the photo to a WCF Service. Along with ... the information? Many 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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362 views

1 answer

objective c - Share video on Twitter with Fabric API without composer iOS

Video uploads via REST API for Twitter is available in january but no with Fabric framework: link! See Question&Answers more detail:os...

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

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353 views

1 answer

objective c - Turning an iPhone or iPod into a wireless webcam

I'd like to stream video from the camera on an iOS device to a receiver via wifi, in effect turning ... and can jailbreak if necessary. 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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objective c - Arrow keys with NSTableView

Is it possible to navigate an NSTableView's editable cell around the NSTableView using arrow keys and enter/tab? ... double-click on each cell. See Question&Answers more detail:os...

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

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257 views

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objective c - Peripheral and central at the same time on iOS

I've looked everywhere and tried everything, but nothing seems to work :( On iOS, I'm making an app (for ... code or any other information :) See Question&Answers more detail:os...

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

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502 views

1 answer

objective c - Remove Special Characters in NSString

i am convert paragraph into words it contains many special characters like " , " . ` how to remove this ... //the special characters are change See Question&Answers more detail:os...

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

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574 views

1 answer

objective c - iOS JSON serialization for NSObject-based classes

I'd like to JSON-serialize my own custom classes. I'm working in Objective-C / iOS5. I'd like ... deserialize using objects. Many 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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388 views

1 answer

objective c - Reliable way to compare two NSURL or one NSURL and an NSString?

I recently had a problem when comparing two NSURLs and compare one NSURL with an NSString(which is a URL ... standardizedURL? Thanks a lot! 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

1 answer

objective c - How to inspect the responder chain?

I'm doing some crazy multiple documents inside a single window stuff with the document-based architecture and I'm ... chain at any given time? See Question&Answers more detail:os...

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

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373 views

1 answer

objective c - Linking error for unit testing with XCode 4?

I want to write some logic unit tests for classes in my XCode application. In Xcode 4, I clicked on ... would be greatly appreciated. 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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577 views

1 answer

objective c - dispatch_async and calling a completion handler on the original queue

I've seen some related questions but none seem to answer this case. I want to write a method that will ... is not to be 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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889 views

1 answer

objective c - How to remove the blank space at the top of a grouped UITableView?

When you create a UITableView with the UITableViewStyleGrouped style, it adds quite a lot of space in between the ... optimal and a clear hack. See Question&Answers more detail:os...

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

0 votes

374 views

1 answer

objective c - "No visible @interface for 'BlahDataController' declares the selector 'aMethod:'"

A simple example of my problem: "Within the BlahDataController.h" @interface BlahDataController : NSObject -(NSString ... Close XCode and reopen See Question&Answers more detail:os...

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

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349 views

1 answer

objective c - iPhone/iPod Touch: application executable is missing a required architecture

I have an issue with xCode 4.2. I am getting this error when building: 2011-06-18 13:35:49.839 ... architecture only : NO Not sure what 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

1 answer

objective c - NSDictionary to NSArray?

i have a NSDictionary which looks like: { "Item1" = 2.4; "Item2" = 5.5; "Item3" = 15.6; } To ... _myArray keeps empty? 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)

0 votes

428 views

1 answer

objective c - Google analytics 3.08 IOS idfa class missing, won't collect idfa

I downloaded google analytics and i followed their instructions how to implement analytics in application. But whatever i ... can I fix it? See Question&Answers more detail:os...

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

0 votes

315 views

1 answer

objective c - Refer to build number or version number in code

It's easy to set the build and version numbers manually in Xcode, and I learned how to increment them with ... reference their values in code? See Question&Answers more detail:os...

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

0 votes

419 views

1 answer

objective c - CoreData (for iphone) storing images

i wonder if its a wise choice to store images with core data into binary property say i have a collection ... anyone has experience with 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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418 views

1 answer

objective c - How to measure noise or sound and displays in dB(A) in iphone?

I want to measure sound in dB(A) in iPhone. How can I do it? Is there any example or tutorial? See Question&Answers more detail:os...

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

0 votes

423 views

1 answer

objective c - Drawing gradient over image in ios

How to create gradient colour look like following image programatically. See Question&Answers more detail:os...

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

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