Recent questions tagged objective

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objective c - how to fix status bar overlap issue in ios 7

I am developing an application that's working fine in IOS6. But in iOS7, the status bar overlaps with the view ... me any idea about my problem See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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604 views

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objective c - NSString containing hex convert to ascii equivalent

I have an NSString that has hex information such as <00000020 66747970 4d344120 00000000 4d344120 6d703432 69736f6d ... to ascii? Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

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objective c - iOS NSDate Comparison works differently when the 24-Hour Time in date settings toggles between ON and OFF?

Team, I am comparing the date which is formed from string using NSDateFormatter with the iOS system date. ... fmt dateFromString:dateString]; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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381 views

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objective c - Swift dynamic cast failed - Error when trying to run unit tests

Xcode Version 6.1.1 (6A2008a) Error: libswiftCore.dylib`swift_dynamicCastClassUnconditional and Swift dynamic cast failed I ... I am confused?! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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357 views

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objective c - iPhone - Free space left on device reported incorrectly (+- 200 Mb difference)

I use this method to get the free space on the disk, extracted from a code found after some researches. float ... left. Where is the mistake ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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271 views

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objective c - SQLite3 database doesn't actually insert data - iPhone

I'm trying to add a new entry into my database, but it's not working. There are no errors thrown, ... nothing happens. Any help is appreciated! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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objective c - iphone 5 simulator - Cannot click on bottom of screen?

I'm trying to update an app to add support for the iPhone 5. Based on other threads I have seen, I ... window. I will continue to investigate. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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368 views

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objective c - Sorting on 'transient' fields with NSFetchedresultController

Is there a way to use a 'transient' field or something like that and in some way sort accordingly with a ... or workaround for this situation? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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433 views

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objective c - awakeFromNib method called multiple times

In my NSPersistenDocument based project i have a structure like this myDocument (NSPersistentDocument) -> ... loading methods everywhere. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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333 views

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objective c - Native iOS Facebook SSO won't return to app

Ok this may seem like a duplicate but I've been through all of the questions that center around the issue and I ... I know in the Info.plist. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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631 views

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objective c - how to pause and resume NSTimer in iphone

hello I am developing small gameApp. I need to pause the timer,when user goes to another view [say settings view]. ... ... Thanks in Advance... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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335 views

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objective c - Iphone SDK Utility Application template has leak

i'm only create an project with a Utility Application template. This template has a native memory leak when i push ... i don't add new objects. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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379 views

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objective c - UIView set only side borders

Is there a way to set the sides of the border of a UIView to one color and leave the top and the bottom another? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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345 views

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objective c - Use of properties for primitive types

I'm having trouble understanding when to use properties in Objective C 2.0. It seems you do not need a property ... this topic for me? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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791 views

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objective c - Header file (FirebaseCore/FirebaseCore.h) not found, despite importing Firebase.framework

I am trying to manually import and use the Firebase framework in my iOS application. I am starting off ... the simple old fashioned approach. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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475 views

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objective c - Padding string to left

How can one pad a string to left in objective c. E.g if I have an integer value of 6 I want it to ... like 60. Your help is much appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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341 views

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objective c - Is there a way to clear the cache used by UIImage class?

It is well known that UIImage caches its image data when the image is loaded using the imageNamed: method. From ... that the iOS SDK imposes. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

1 answer

objective c - Best way to store data on iphone

I am creating a Questions and answers app for iphone which allows user to answer the questions displayed. ... ? Please suggest. Thanks, See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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353 views

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objective c - why does initializing subclasses require calling the super class's same init function?

I have heard that when you have a subclass, you are supposed to initialize the superclass with the same init function ... of my c++ background? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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368 views

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objective c - delete and Update Data in Core Data in iOS

Hi i am a newbie in Core Data in iOS, I have implemented a 4 textfields namely name,age,company,address. ... -update-delete/ Thank in Advance See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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443 views

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objective c - How to convert CSV format into NSData or NSString in iPhone?

I am making an iPhone app which requires the current Stock Prices. I am receiving the data in CSV format ... the other alternatives for this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

1 answer

objective c - Change the height of UILabel dynamically based on content

I have a UILabel as subview of UIButton and I am passing the value from another view and populating in ... UILabel and UIView must expand. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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329 views

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objective c - What equivalent code is synthesized for a declared property?

How exactly getter and setter methods body looks like after they have been automatically synthesized ? From official ... // setter body } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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348 views

1 answer

objective c - Stopwatch using NSTimer incorrectly includes paused time in display

This is my code for an iPhone stopwatch. It works as expected and stops and resumes when the buttons are clicked. When I ... = @"00:00.00"; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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250 views

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objective c - Physics bodies other than my player won't call didBeginContact when colliding

In my game I have 4 bitmasks and everything is setup, yet didBeginContact only gets called when the first bitmask ( ... any of them to collide. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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349 views

1 answer

objective c - UITabBar customization

This looks like a long shot, but does anyone know of a way to: Position a UITabBar on the top part ... welcome to suggest private API methods See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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366 views

1 answer

objective c - Reverse Geocode Current Location

Is it possible to reverse Geocode your current location on SDK 3.x? I need to simply get the zip code of ... think was introduced until SDK 4. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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297 views

1 answer

objective c - How to know if NSString fits in UILabel or not and index of the last string which fits?

I have 4 lines UILabel with exact frame and font. I need to know if this string fits the label and what ... of the last character which fits. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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