Questions tagged [Objective-C] (750)

Hello! Have experience of developing, in particular Beck(node and php). Had time to explore iOS development(mobile and desktop apps). Have specific questions: 1) What device will be relevant for the coming couple of years (something of a macbook since need mobility) ? 2) What language to choose: Objective-c or swift (what i...

Tell me, how is the process to update the app version in the AppStore? For example, I've uploaded the first version of the app, and after you've made any global changes in the simulator when you run the application with old data throws the error, but removing completely the app and negativ new version from scratch everythi...

In the process of learning a runloop-a, I was faced with the expression: "The kernel puts the thread to the pool of idle threads". Question: This happens automatically? That is, when runloop goes into hibernation mode stops the entire flow, and the kernel automatically unloads the stream. Let's say if I want to create ...

The different structure of the projects in the languages Obj C and Swift? What files are in one place but not in another? And also, interested in General project structure, which file is for what.

In the function cellForRowAtIndexPath is code that sets the text in a label summ class HeadCell so[[(HeadCell*)cell summ] setText:summString]; summ is a property of type UILabel class HeadCell. How to pass a string into the myString property of the same class? proboval so:[(HeadCell*)cell myString] = newMyString; says Expre...

Hi all. There is a task: to expand the functionality of the desktop Finder.app under Mac OS, adding a new view to display files. In other words, now the Finder is displaying files tiles, table, columns and a gallery. You need to add a fifth button in this row, which would include another display mode. Suppose there is it's ...

Hello! Far in the 2014-15 year, I was practicing Objective-C, UIKit, CoreData, Xcode, generally wrote for myself app for iOS (just for fun in my spare time). It so happened that the whole thing I gave up, but at the moment are looking towards mobile dev (iOS), WEB pall, possible future employment in that direction. If he'...

Hello. Faced with a problem of this kind: I get a specific date with API for the whole year and depending on the Responsa form the content of the alert. In the year they may be around 200 dates (respectively 200 alerts should be), but how do we know we have a limit of 64 alerts. In principle I can squeeze a maximum of (64) ...

There is an idea to develop a chat with support of audio messages, but for that I need a little help. At the moment I have implemented audio recording and displaying sound waves during recording/reading. Looking at the app Telegram, VK I am interested in a couple of questions: 1) When loading the chat, all audio messages...

Good afternoon, prompt please, whether there is a method to intercept and came push'and display it when the app is in foreground?