Each news item contains a title, link, publication date, full description and other fields. After some header information to describe the news website or “channel”, the RSS feed displays separate news items inside. “Empty element” tags, which might contain values as attributes ( ).End tags, to mark the end of a value ( ).Start tags, to mark the start of a value (such as ).XML elements are values set off by tags which are one of three types: You may know that RSS is just a form of XML, which itself is a simple markup language. Each item sits inside an (or ) tag and contains among others a title, a url, and a publication date. These items are usually news articles or blog entries, but they can be about any web-accessible content. Originally dubbed RDF Site Summary, but oftentimes called Really Simple Syndication, RSS is a format for delivering regularly changing web content.Īn RSS file consists of both static information about the feed as well as dynamic items. That’s because it represents a rather popular standard of open information proliferation. Next make the following changes to RootViewController.You’ve definitely seen this icon on just about every blog, traditional media site, and plenty of other places. This instance variable and property will be used to keep a list of all RSS entries. After (retain) NSMutableArray *allEntries So go to RootViewController.h and make the following changes: We’ll put some dummy entries in for now, and later on we’ll add the code to retrieve them from actual RSS feeds on the Internet. I was wondering if anyone knows a tutorial I could follow in order to learn how to get the data from the spreadsheet a. Next let’s set up the table view controller so that it keeps a list of RSS entries, and displays information about each one in the table. I have a Google Spreadsheet that I want to use as a database for my Xcode app. [super fancy here – this just synthesizes the properties and creates an initializer for convenience. Xcode can launch its development tools, or you can launch them independently from the Xcode > Open Developer Tool. Use Xcode to manage your entire development workflow from creating your app to testing, optimizing, and submitting it to the App Store. Feedews is a highly customizable RSS feed reader written in Swift and built on a native. (id)initWithBlogTitle:(NSString*)blogTitle articleTitle:(NSString*)articleTitle articleUrl:(NSString*)articleUrl articleDate:(NSDate*)articleDate Xcode consists of a suite of tools that developers use to build apps for Apple platforms. Please see our set up guide for developing iOS apps on Windows. #import blogTitle = articleTitle = articleUrl = articleDate = _articleDate You can fix it by adding the following line of code. However, at this point the message label and the top bar are hidden. Next replace RSSEntry.m iwth the following to complete the implementation: Tapping the scan button should bring up the built-in camera and start capturing video. (id)initWithBlogTitle:(NSString*)blogTitle articleTitle:(NSString*)articleTitle articleUrl:(NSString*)articleUrl you can see, this is a very simple class that just stores information about each article: its title, url, and date, as well as the name of the blog it came from. NSDate (copy) NSString (copy) NSString (copy) NSString (copy) NSDate *articleDate Name the class RSSEntry.m, make sure “Also create RSSEntry.h” is checked, and click Finish. Select the Classes group, go to File\New File, choose iOS\Cocoa Touch Class\Objective-C class, and click Next. The first thing you’ll do is create a class to keep track of individual articles inside a RSS feed. Start up XCode, go to File\New Project, choose iOS\Application\Navigation-based Application, and click Choose. This iPhone app tutorial was specially requested and sponsored by William Mottl, a kind supporter of this blog. So in this iPhone app tutorial, you’ll get hands-on experience doing exactly that by making a simple RSS reader app! OmniFocus Video Tutorials, Articles
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |