Browsing articles in "iPhone Tutorial"
Nov
22
2011

Parsing CSV to Objective-C with CHCSVParser

csv_file

Ever thought of how to import your excel data into iphone project? You can do it with CSV parser. CHCSVParser is an Objective-C parser for CSV files. It is very useful if you would like to import your data from excel file, you can save your excel to CSV format and import them into objective-c. The source can be downloaded from github here. To use this library, in your controller, you need to import the [...]

Nov
21
2011

JSON in ios 5

json_file

Before ios 5, we have to use third party JSON library like SBJSON or TouchJson to deal with JSON data. Today, iOS 5 has built-in APIs in the Foundation Framework which is called the NSJSONSerialization to make it easy to read and write JSON. Click here for reference. Below is an example of how to read JSON data into NSArray, NSDictionary and NSString. NSString* str= @"{\"name\":\"cayden\",\"hobby\":[{\"0\":\"programming\"}, {\"1\":\"gym\"}]}"; NSData* data=[str dataUsingEncoding:NSASCIIStringEncoding];   NSError* error; NSDictionary* json [...]

Nov
20
2011

Twitter framework for ios5

ios5-tweet

In this post i’ll walkthrough how to implement the ios5 Twitter framework in your app. The first thing we need to do is of course import the new Twitter Framework and the Account Framework into our project. In Xcode, tap on the project, under ‘Build Phases’, add the two frameworks needed. To use the framework, we will import them into our controller like this: #import <Twitter/Twitter.h> #import <Accounts/Accounts.h> In this demo, i’ll just create a [...]

Nov
15
2011

IOS & Mac OS Communication with AsyncSocket

AsyncSocket is an asynchronous socket networking library for Cocoa. Using this library, I’ve created a client with is an iPhone app and the server (or remote host) which is a Mac app. The video below shows a demo of socket communication between the iPhone and Mac app. You may download the source code from my github.

Nov
12
2011

Build a custom UITableViewCell

uitableviewcell subclass

Customize the UITableViewCell for ios app is simple. You can download the source code from my github. First create a project with UITableViewController. The create a new subclass of UITableViewCell named ‘CustomCell’. @interface CustomCell : UITableViewCell { } Add the UI components to be displayed on the table cell. For example UILabel, UIImageview, etc. In this example, we add 2 labels and an image.   @interface CustomCell : UITableViewCell { UILabel *leftLabel; UILabel *rightLabel; UIImageView [...]

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