Read xml file in swift

apologise, but this variant does not..

Read xml file in swift

Posted on June 6, by Steven Lipton. XML or eXtensible Markup Language is a highly flexible language for an amazing variety of data storage solutions. Microsoft Office uses it for spreadsheets and documents. Xcode uses XML for storyboard files and property lists.

You could even build data bases in XML. Much of the external data we can add to an application also comes in an XML format. Understanding how to use this format is a critical skill for good application development. A lot of data you can read externally from the web will be XML data. XML is a text file with special opening and closing tags. The author makes up whatever tags they want. For example this is properly formed XML.

The XML file author sets the tags menuitemnamesize and price. Their meaning is the meaning the author assigns them. I could include all the options for size in one item, rewriting the above as. Many open data portals and commercial web sites can transmit data in XML. We can also export a XML file from the data portal as well. Three rows from that data would export like this. We can clean it up to read it. Before we completely clean it up, notice the row tag has a lot of extra stuff on it like this.

For some data sets they become important ways of organizing and including extra information about our data. If we remove the attributes and indent everything, we get an XML file like this:.

read xml file in swift

Use Swift as the language, with a universal device. Go to the ViewController. Go to the storyboard. Open the document outline if not already open by clicking the icon on the lower left of the storyboard.

Select the View Controller Scene on the outline. Press Delete on the keyboard to remove it. Press Command-Shift-K to force a cleaning of the project, removing anything that might mess up our storyboard work. Find the Table View Controller in the object library and drag to the storyboard. In the Identity inspector, change the Class to View Controller. In the properties inspector, change the Style to Subtitle and the Identifier to Cell.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here.

Oscam file

Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. For reading and writing you should use a location that is writeable, for example documents directory. The following code shows how to read and write a simple string.

You can test it on a playground. Assuming that you have moved your text file data. New simpler and recommended method: Apple recommends using URLs for filehandling and the other solutions here seem deprecated see comments below.

Swift 5 Convert JSON to XML or Plist in Playground

The following is the new simple way of reading and writing with URL's don't forget to handle the possible URL errors :. I want to show you only the first part, that is read. Here's how simply you can read:. The current accepted answer above from Adam had some errors for me but here is how I reworked his answer and made this work for me.

XML Schemas

In the function example, read write DocumentsFromFile However, these examples aren't complete enough to use in a real program.

The write function does not report any errors creating or writing to the file. On the read, I don't think it's a good idea to return an error that the file doesn't exist as the string that is supposed to contain the data that was read.

You would want to know that it failed and why, through some notification mechanism, like an exception. Then, you can write some code that outputs what the problem is and allows the user to correct it, or "correctly" breaks the program at that point.

You would not want to just return a string with an "Error file does not exist" in it. Then, you would have to look for the error in the string from calling function each time and handle it there. You also possibly couldn't really tell if the error string was actually read from an actual file, or if it was produced from your code.SimpleXML converts any XML data to an object which can be easily processed with normal property selectors and array iterators.

You must have installed php-simplexml extension on your system to use examples of this tutorial. Here is a sample XML file used for this tutorial. The XML filename is employees. After that, you can access any element from the XML by this object as follows.

Foreach loop access all children of an object. I, Rahul Kumar am the founder and chief editor of TecAdmin. There is an error on your sample code. Please correct it. Save my name, email, and website in this browser for the next time I comment. Search for: Search.

Kya dark lineage hack//quarantine aiuto

PHPsimplexmlxml. Share on Facebook. Share on Twitter.

read xml file in swift

Share on LinkedIn. Share on Reddit. Share on Tumblr. Share on Whatsapp. Rahul Connect on Facebook Connect on Twitter.

Related Posts. August 25, at am. Hello, How to retrieve the data if employees. August 26, at am. You can simply put http url. I have also added an example in this tutorial. June 14, at pm. Hi, Google article, i stay practice php and i so like this language.

June 12, at pm. June 8, at am. June 1, at pm. Hi thank you for solution, for nested xml? May 23, at am. April 20, at pm. April 21, at am. All Rights Reserved. This site uses cookies. By using this website you agree with our term and services. We use cookies to ensure that we give you the best experience on our website.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

If nothing happens, download GitHub Desktop and try again.

Subscribe to RSS

If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Conceptually, it provides a translation from XML to a dictionary of arrays aka hash. Swift Package Manager requires Swift version 4. First, create a Package. It should look like:. You can do this in a separate directory or you can make use of git submodules - in this case, git submodules are recommended so that your repository has details about which commit of SWXMLHash you're using.

I've included a Swift playground in the workspace which makes it easy to experiment with the API and the calls. To set any of the configuration options, you use the configure method, like so:. All examples below can be found in the included specs.

Alternatively, if you're parsing a large XML file and need the best performance, you may wish to configure the parsing to be processed lazily. Lazy processing avoids loading the entire XML document into memory, so it could be preferable for performance reasons. See the error handling for one caveat regarding lazy loading.

Alternatively, you can look up an element with specific attributes. The below will return "John". The all method will iterate over all nodes at the indexed level. The code below will return "Fiction, Non-fiction, Technical". The below will print "root", "catalog", "book", "genre", "title", and "date" note the children method.

The following will return return "Midnight Rain". Filtering can be by any part of the XMLElement class or by index as well. Note that error handling as shown above will not work with lazy loaded XML. The lazy parsing doesn't actually occur until the element or all method are called - as a result, there isn't any way to know prior to asking for an element if it exists or not. For leaf nodes e. For attributes e.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Conceptually, it provides a translation from XML to a dictionary of arrays aka hash. Swift Package Manager requires Swift version 4. First, create a Package. It should look like:.

Subscribe to RSS

You can do this in a separate directory or you can make use of git submodules - in this case, git submodules are recommended so that your repository has details about which commit of SWXMLHash you're using. I've included a Swift playground in the workspace which makes it easy to experiment with the API and the calls. To set any of the configuration options, you use the configure method, like so:. All examples below can be found in the included specs.

Alternatively, if you're parsing a large XML file and need the best performance, you may wish to configure the parsing to be processed lazily. Lazy processing avoids loading the entire XML document into memory, so it could be preferable for performance reasons. See the error handling for one caveat regarding lazy loading.

Alternatively, you can look up an element with specific attributes.

Odroid n2 forum

The below will return "John". The all method will iterate over all nodes at the indexed level. The code below will return "Fiction, Non-fiction, Technical".

read xml file in swift

The below will print "root", "catalog", "book", "genre", "title", and "date" note the children method. The following will return return "Midnight Rain". Filtering can be by any part of the XMLElement class or by index as well. Note that error handling as shown above will not work with lazy loaded XML.

The lazy parsing doesn't actually occur until the element or all method are called - as a result, there isn't any way to know prior to asking for an element if it exists or not. For leaf nodes e. For attributes e. Types conversion supports error handling, optionals and arrays.This XML tutorial will show you how to do exactly that! However, if you are using a different DOM parser, it should be almost exactly the same as this but just slightly different API calls.

As I mentioned, this list represents a list of characters you might have in a RPG dungeon crawl game. I wanted to keep the document pretty small to make the XML tutorial easy to follow, but still show you some interesting things such as using different datatypes and having lists of objects.

Yolo person detection github

Basically, we want to make a set of objects that represent how we wish to work with our characters in our game. Name the file Player. Follow the same steps as above to create a new subclass of NSObject named Party.

Replace Party. Ok, so far so good!

Virtual internship agreement

First, download Party. Ok, finally some semi-interesting code here. First we create a static method called dataFilePath that returns the path to the Party.

Next, we create another static method called loadParty. However, if we receive a success, we just print out a description of the root element of the document which should be the tag in our case.

XML Tutorial for iOS: How To Read and Write XML Documents with GDataXML

Here we just add some include files and call the static method to load the party in our applicationDidFinishLaunching, and do some cleanup in our dealloc method.

The replace the code in the loadParty method starting with replacing the NSLog statement with the following:. This is the real meat of our work. Our code only deals with one name, so we just take the first if there is more than one. If anything fails, we just skip that Player.

Otherwise, we construct a Player model object with the values we read from the XML, and add it to our Party model object, and return that! Compile and run your project, and if all works well you should see the following in the console output:. XPath is a simple syntax you can use to identify portions of an XML document. The easiest way to get a handle on it is by seeing a few examples. For example, the following XPath expression would identify all of the Player elements in our document:.

Replace the line that loads the party members as the following:. However, you can imagine that this could be pretty useful if we had a big complicated XML document and we wanted to quickly dig down to find a particular element, without having to look through the children of node A, then the children of node B, and so on until we find it.

What if we want to add a new player to our party and then save the new document back to disk? Well, the first thing we need to do is determine where we are going to save the XML document.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

How can I create XML files "manually" using swift? Is there any library that I can use? I saw that in objc it's possible to add libxml but even with that I can't find any good documentation on it. Any suggestions? For example:. Learn more. Asked 5 years, 8 months ago. Active 5 years, 5 months ago.

Viewed 13k times. Nuno Nuno 1 1 gold badge 4 4 silver badges 20 20 bronze badges. Active Oldest Votes. Arkku Arkku Thanks for the help. TimScott Are you using it in an iOS project? It's only available on OS X at the moment. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.

The Overflow How many jobs can be done at home?

Maixduino serial

Featured on Meta. Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap. Technical site integration observational experiment live on Stack Overflow. Triage needs to be fixed urgently, and users need to be notified upon….

read xml file in swift

Dark Mode Beta - help us root out low-contrast and un-converted bits.


Zulkikora

thoughts on “Read xml file in swift

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top