Questions tagged as 'objective-c'

Tagged questions
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UITextField does not display keyboard (IOS / Objective C) [closed]

My field (UITextField) does not display the application keyboard when selected through the simulator.     
asked by 08.05.2015 / 20:06
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How to know which fireDate of the next scheduled notification?

I'd like to know if there's a way to get the next fireDate from the current date. I have a method that creates the notification and repeats it every time. How do I get the next fireDate ? You would need this to display in a strin...
asked by 07.04.2015 / 05:26
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Function library in Xcode (Objective-C)

I need to create a function library in Objective-C . The idea is to create something more or less like the Math.h function library. That is, you do not have to instantiate the class to use the methods declared in that class (or librar...
asked by 31.03.2015 / 20:16
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How to parse a Json with 2 columns in Objective-C?

In a Get using PHP I'm making the request of 2 columns this way: <?php include 'conexao.php'; header('Content-Type: text/html; charset=UTF-8'); //Converte para UTF8 os resultados da query mysql_set_charset('UTF8'); //Retorna resultado query...
asked by 19.02.2015 / 02:53
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Problems inserting new record in Core Data

I noticed a problem with the code, when I try to insert a new record into an entity, I lose all the old records and only the new one gets saved. Code used: NSManagedObjectContext * context = [self managedObjectContext]; NSManagedObjectCont...
asked by 09.02.2015 / 21:47
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How to check empty records in Core Data?

I'm working on a way to know if data has been downloaded and recorded correctly on Core Data.  Due to the poor quality of 3G connections and the potential for failure, I would like to know if there is a way to query the core data and see if ther...
asked by 06.02.2015 / 18:29
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How to pass map data to be displayed by another class?

I'm using the Google Maps API for iOS. I was doing some tests and set a UIView as subclass of GMSMapView and kept a pointer to it in ViewController , getting: #import <UIKit/UIKit.h> #import <GoogleMaps/GoogleMaps....
asked by 13.02.2015 / 04:30
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Reading .xlsm file (Excel) from my application

How do I read a .xlsm (Excel worksheet) file from my application? Basically I need to get the data from this worksheet. Take the value of each of the cells it has. Is there anything native for me to do this reading? Any library for...
asked by 01.12.2014 / 17:54
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Error creating TabbarController at runtime

I have a problem creating a Tabbarcontroller at runtime in objective -c , when I call the method that creates the tabbar occurs an error:    Thread 11: EXC_BAD_ACCESS (code = 1, addess = 0x3000000c) I think it's because I created a...
asked by 15.04.2015 / 15:24
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iPhone 5 and iOS 8 - Location Permissions

All devices are OK, the permission request for location usage (independent of iOS 7 or iOS 8) appears. Only the iPhone 5 does not appear. Permission request code: var versionString = UIDevice.currentDevice().systemVersion.stringByReplacingO...
asked by 14.01.2015 / 18:00