IOS

I. project structure 　　 Ii. Main Code 1. CoreManage. h # Import @ protocol SampleProtocol; // declare the attributes and methods of the core class @ interface CoreManage: NSObject @ property (nonatomic, assign) id delegate;-(void) doMainWork; @

Like any C-based application, the main entry point of the program startup is the main function of the iOS application. In iOS applications, the main function has very few functions. Its main task is to control the UIKit framework. Therefore, any new

The extension of OC classes is summarized as follows: There are 4 in total: 1. subClass Purpose: You can use class inheritance to add the variables and methods of the parent class. Statement: In the. h file @ Interface Student: Person 2.

Cell. textLabel. textAlignment = UITextAlignmentCenter; Now we need to write cell. textLabel. textAlignment = NSTextAlignmentCenter; UITableViewCell * cell = [[UITableViewCell alloc] initWithFrame: CGRectZero reuseIdentifier: nil] autorelease]; To

I recently encountered a problem with the following requirements: Requirement: a storyboard has a single controller VC (not connected). In storyboard, drag several controls to the VC and customize a class to bind the VC, ask how to obtain this VC

1. Define an event: -(IBAction) limitLength :( UITextField *) sender {bool isChinese; // determines whether the current input method is Chinese. if ([[[UITextInputMode currentInputMode] primaryLanguage] isEqualToString: @ "en-US"]) {isChinese =

I haven't written a blog for a long time. This is my first technical blog post after I step into my new job. Before entering a new company, I had a technical layer to prepare for the next iteration, but many things were unexpected, just as I

1 // 2 // ZFViewController. m 3 // 0628-Form Verification 4 // 5 // Created by zfan on 14-6-28. 6 // Copyright (c) 2014 zfan. all rights reserved. 7 // 8 9 # import "ZFViewController. h "10 # import" MBProgressHUD + MJ. h "11 12 @ interface

URL encoding: please If you have tried to send any information using a GET web request, you wowould have come cross an annoying problem, That annoying problem is making sure that the URL is already ently encoded. The issue is that by default most of

IOS Dev (55) obtains information such as the current year, month, and day.   NSDate * now = [NSDate date]; NSCalendar * calendar = [NSCalendar currentCalendar]; NSUInteger unitFlags = NSYearCalendarUnit | calendar | NSDayCalendarUnit |

I'm Mike Ash's Let's Build... Fans of the series of articles, in which he designed Cocoa controls from the ground up to explain how they work. Here I want to do something similar and use a few lines of code to implement my own rolling attempt. First,

The View is moved when the iOS Dev (54) keyboard pops up and is collapsed.   Add listener[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(changeContentViewPosition:)

After marking many points on a map, you can set the center point of the map, but the scaling level is a bit difficult to use, Therefore, it is necessary to dynamically calculate based on the coordinate region of the coordinate data point, and

Developing good programming habits is the first prerequisite for starting a new language. (1) document structure specifications 1. Create a Libs folder to store third-party libraries. 2. Create a Tools Folder to store your own encapsulated class

Step 1: apply for a certificate: Step 2: Apply for app ids. The app name must be consistent. Then, go to the Edit page to enable it with a green light. VcD4KPHA + PGJyPgo8L3A + CjxwPjxpbWcgc3JjPQ = "http://www.2cto.com/uploadfile/Collfiles/20

Array traversal is a common requirement in encoding. Let's find out what methods are available in iOS and what features are there. Because iOS is compatible with the C language, the most common for loop traversal in the C language is no problem. The

(1) pragma mark 1. Definition # The code starting with pragma is a compiler instruction, which is a program or compiler-specific instruction. Not necessarily applicable to other compilers or other environments. If the compiler cannot recognize this

I just sat down and did nothing. I wrote the Bubble Sorting in swift, and looked at my fingers and made bricks! Haha! Let's talk about the code! 1 import Cocoa 2 3 var array = [123,234, 12,346, 67,234, 567,345,234,234,] 4 5 println ("Values Before

1. Drag the sample code: Copy code 1 // 2 // YYViewController. m 3 // 06-drag event 4 // 5 // Created by apple on 14-6-19. 6 // Copyright (c) 2014 itcase. all rights reserved. 7 // 8 9 # import "YYViewController. h "10 11 @ interface

All the news came together this morning to report that the Netherlands defeated Spain 5-1. I didn't think it was wrong. I suddenly thought that if the Chinese team vs the Dutch team would not lose much, I watched the live video of yesterday's