Recent questions tagged objective

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objective c - Prevent NSTimer firing delays in background app

I'm working on a macOS app (let's call it the "display app") that displays a clock and other data, ... , control, or circumvent this behaviour? See Question&Answers more detail:os...

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

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416 views

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objective c - Trouble setting label text in iOS

I have a connected UILabel @property (strong, nonatomic) IBOutlet UILabel *label; And an Action, which is triggered ... am i doing wrong please? See Question&Answers more detail:os...

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

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488 views

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objective c - How to post Image with status in Facebook in Iphone sdk?

HI Guys, Here I am having problem that How can I post an image including status in facebook can anyone ... facebook account. Thank you, Monish See Question&Answers more detail:os...

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

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395 views

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objective c - SQLite will not prepare query when accessing database in Xcode

I'm a beginner iPhone developer trying to take information out of a sqlite database in Xcode 4.3. I have my database ... { NSLog(@"Error"); } } See Question&Answers more detail:os...

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

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386 views

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objective c - ios getting my location regularly and setting button to get my location - Google Map not working

I am working on Google Map Module , using 1.9.0 Bundle, to find my location on regular basis , say 10 seconds ... device is 8.3 , iphone 6 See Question&Answers more detail:os...

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

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616 views

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objective c - Access IBOutlet from other class (ObjC)

I've googled around and found some answers but I didn't get any of them to work. I have one NSObject ... setStringValue: @"foo"]; @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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382 views

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objective c - xCode Dynamically create ViewControllers

I want to be able to dynamically create ViewControllers based on a JSON file. What I mean is, there will ... to secondVC and second to thirdVC 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

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objective c - OpenCV error: Assertion failed on iOS

I'm trying to find the largest blob in an image and classify it according to a linked plist file. I'm using ... 4000 What's the issue here? See Question&Answers more detail:os...

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

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555 views

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objective c - How to fetch images from photo library within range of two dates in iOS?

Context I am try to fetch images within range of two dates from the photo library. Firstly, I am getting info ... How can I solve this problem? See Question&Answers more detail:os...

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

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523 views

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objective c - Extract part of URL

I have an URL and need to extract a part of it. The url is like this: http://website.com/get.php?url=http ... would I do this in Objective-C? See Question&Answers more detail:os...

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

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543 views

1 answer

objective c - Alternative to NSXMLDocument on the iPhone for XSLT purposes

I know it's been asked before (like here), but is there way to natively use XSLT on the iPhone? If ... would be appreciated. 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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469 views

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objective c - Getting Null from NSDateFormatter

I am trying to convert a String into NSDate, but I am getting Null. Sample String Input is = 8/8/2013 12:32: ... up to date, it returns null... See Question&Answers more detail:os...

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

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732 views

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objective c - Removing parentheses from the string in iOS

I am trying to remove all the parentheses in my string in iOS. Saw this stackoverflow post: how to remove spaces ... some guidance on this... See Question&Answers more detail:os...

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

0 votes

585 views

1 answer

objective c - Simulate/Toggle CAPS LOCK programatically in OS X

I have seen many post on this topic. But haven't found a clear answer anywhere. Is there a way to toggle CAPS ... way it does for other keys? See Question&Answers more detail:os...

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

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551 views

1 answer

objective c - preferredLanguages iOS 9

in order to localize my App, I use the following code: NSString * language = [[NSLocale preferredLanguages] ... setting" for french ? 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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441 views

1 answer

objective c - draw line between two points in iphone?

The above picture indicate the redpoint, i like to join those points. I like to draw a line between two points, ... , can someone help 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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382 views

1 answer

objective c - Obj-C -> Incrementing a number (and showing steps on a Cocoa label)

I'm new with Objective-C, so there probably is a simple solution to this. I want a number to increment, but ... displayed 9 in the text box. See Question&Answers more detail:os...

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

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443 views

1 answer

objective c - Push Notification Badge Count Not Updating

this is my code for apple push notification, when the application is running and notification coming ... :badgeValue]; } See Question&Answers more detail:os...

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

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424 views

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objective c - Show/Hide TabBarController in iphone

i am making an application in iphone in which i have 4 tabbars & in one of its tab i have 4 views in 2nd ... make the tab bar appear. any ideas? See Question&Answers more detail:os...

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

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423 views

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objective c - How to tap (hook) F7 through F12 and Power/Eject on a MacBook keyboard

This question follows from How to hook/remap an arbitrary keyboard event on OSX? So far I am able to tap the ... blocking call. } return 0; } 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

1 answer

objective c - Name for %@ %d in an NSString

What are these called in Objective C? @"%@" @"%d" @"%i" See Question&Answers more detail:os...

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

0 votes

394 views

1 answer

objective c - NSUndoManager to undo UIImage rotation using rotation gesture

How to use NSUndoManager to rotate a UIImageView using rotation gesture? This is my code for rotation. - (void) ... CGPoint lastpoint = point; } See Question&Answers more detail:os...

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

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1.1k views

1 answer

objective c - initialization makes pointer from integer without a cast

Okay, I am having a hard time with this. I've searched for the past hour on it and I don't get what I ... 't find an example that works. 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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497 views

1 answer

objective c - SMJobRemove succeeds, but plist and helper tool not deleted

I'm trying to remove a privileged helper tool installed via SMJobBless, I'm getting a positive return value and ... , _authRef, YES, &errorCF); See Question&Answers more detail:os...

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

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540 views

1 answer

objective c - iOS UILabel autoshrink so word doesn't truncate to two lines

I'm trying to have the UILabel shrink so that words don't truncate to the next line. Not just text truncating ... ]; } return font.pointSize; } See Question&Answers more detail:os...

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

0 votes

529 views

1 answer

objective c - Getting the main window of an app via an NSRunningApplication instance

I'm observing NSWorkspaceDidDeactivateApplicationNotification notification to get the application that has just lost focus. ... MacRuby. Thanks See Question&Answers more detail:os...

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

0 votes

503 views

1 answer

objective c - MEDIA_ERR_DECODE on HTML5 video in iOS UIWebView after many plays

After playing around 20 short video clips (mp4's) in an HTML5 video control in a UIWebView in iOS, subsequent ... only occurs on the iPad itself See Question&Answers more detail:os...

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

0 votes

386 views

1 answer

objective c - iPhone - how to change the build configuration to distribution

I have been following apple's instructions to get my app to iTunes. I can not figure out how to open the ... the help, nothing is 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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