Using objective c , and UITextField, i am trying to set a basic search engine.
So when user starts to type a word, he will get a list of words from an xml file (or other such as json) , and as he continue typing ,the list will be changed to adapt . Much like google search box .
I guess i dont have to invent the wheel and a searching algorithm from an xml file has already be done- but i couldn't find one .
Regarding the UI elements needed, i guess a search box with a built in list is something that already there also ?
thanks .
There are a bunch of tutorials online you should have a look at if you want to do this
Here are some about making a search:
AppCoda Search Bar
Ray Wenderlich Search View Swift
Here are some about parsing XML and JSON:
AppCoda JSON Parse
AppCoda JSON & XML Tutorial
Ray Wenderlich XML Parse
I recommend you recommend that you read through these and other online documentation/tutorials and decide how you want to code your search engine.
My advise for building this is to have a UITextField for the user to type into and then have a UITableView to display the results. You should parse the XML to a NSMutableDictionary/NSMutableArray and search using the user's input.
Feel free to ask any questions
Related
Im struggling with a thought here. Let's say a user has his own CMS where he can fill the content for our app. One of his options is to create a view by uploading images and typing text. Well keep it very simple and imagine he only uploads a image (320 x 20) and some text. So an image on top and some textlines below.
What would be the best way to let my app know of this layout and download the contents? I was thinking of a downloadable XML file which defines the layout but don't really know how to implement this or if its even the best way.
Oh and the content and layout must be downloadable for offline use too.
Another option what I was thinking of is showing the layout in a webview but I can't figure out how to download the mobile website for offline use.
A push in the right direction would be appreciated!
We use a custom XML and it is working good. All texts inside 'label tags' are in XHTML
remember to:
be specific when defining the xml to save some effort
write a limiting XSD! So nothing 'surprising' creeps into the xml
remember not include everything in ONE xml file as that would get rather large rather quickly. Choose a scheme for portioning the XML
I want to use and develop a dictionary application for iOS and Mac, but I don't know how to use the Cocoa search field control .
If there is sample code for that, please guide me there.
If there is documentation for search field control, please guide me.
You can read about search field here: Documentation
And tutorial how to implement and validate the Search Field here: Tutorial
I am working on the PDF App for iPad and facing an issue: how to search a text in PDF and also how to highlight that text?
Yours is the same big problem I'm having. My understanding is that, currently on iOS 4.0, the main public API is CGPDF . It allows us to parse PDF, and with it we can search strings in it. See also this Quartz 2D document. It also allows us to render it on the screen using CGContextDrawPage. However, it's not yet possible to get the position of a text in the rendered image. (On OS X it's possible using PDFKit.)
So, I'm afraid that you need to implement the PDF spec yourself to get that info. I think GoodReader etc. is working very very hard to implement these.
I had the same trouble recently and then I found FastPDFKit. Have tested the package and it's working great.
http://mobfarm.eu/fastpdfkit
I'm trying to understand how can I do to let my site be reachable from google image search spiders.
I like how last.fm solution, and I thought to use a technique like his staff do to let google find artists images on their pages.
When I'm looking for an artist and I search it on google image search, as often as not I find an image from last.fm artists page, I make an example:
If I search the band Pure Reason Revolution It brings me here, the artist's image page
http://www.last.fm/music/Pure+Reason+Revolution/+images/4284073
Now if I take a look to the image file, i can see it's named:
http://userserve-ak.last.fm/serve/500/4284073/Pure+Reason+Revolution+4.jpg
so if I try to understand how the service works I can try to say:
http://userserve-ak.last.fm/serve/ the server who serve the images
500/ the selected size for the image
4284073/ the image id for database
Pure+Reason+Revolution+4.jpg the image name
I thought it's difficult to think the real filename for the image is Pure+Reason+Revolution+4.jpg for image overwrite problems when an user upload it, in facts, if I digit:
http://userserve-ak.last.fm/serve/500/4284073.jpg
I probably find the real image location and filename
I see this can be done with mod_rewrite engine, but with this tecnique, will the image be highly reachable from search engines and easily archived?
My question is, does exist some guide or tutorial to approach on this kind of tecniques, or something similar?
In my opinion, the best resource for your question is Google itself.
One of the guides targets at google images search and provides some guidelines:
Don't embed text inside images
Tell us as much as you can about the image
Give your images detailed, informative filenames
Create great alt text
Anchor text
Provide good context for your image
Think about the best ways to protect your images
Create a great user experience
Source: Images - Webmaster Tools Help.
As for last.fm, one of the suggestions is:
Give your images detailed, informative
filenames
The filename can give Google clues
about the subject matter of the image.
Try to make your filename a good
description of the subject matter of
the image. For example,
my-new-black-kitten.jpg is a lot more
informative than IMG00023.JPG.
Descriptive filenames can also be
useful to users: If we're unable to
find suitable text in the page on
which we found the image, we'll use
the filename as the image's snippet in
our search results.
So yes, last.fm uses mod_rewrite to give informative filename, which google likes.
There are few more guides out there. None of them is formal, but they can help you anyway:
http://www.tareeinternet.com/forum/seo/236-optimizing-google-image-search.html
http://www.doshdosh.com/how-to-optimize-for-google-images-for-more-traffic/
http://creativebits.org/webdev/optimize_your_site_for_google_image_search
http://www.pearsonified.com/2007/01/get_53_percent_more_searches_with_one_tweak.php
The article pointed out by Tim covers most of it but I'd like to add that the title attribute on <img> tags is important too (but don't abuse it!).
To sum up:
Name your files well. apple.jpg is better SEO wise than PIC2346.jpg. For spaces in filenames use a dash (-) and not an underscore (_). See Dashes vs. underscores for more info.
Alyays fill up the alt attibute. Keep in mind that most screen readers for blind people will read this tag.
Fill the title attribute when usefull. Use a short statement describing the image. Not a whole paragraph!
The context of the image (what is the content around it) is very important too. If the image fits the surrounding contents it will give you more SEO "points".
I’m trying to parse an XML file having ‘n’ number of questions using Objective C. I have to display those questions in labels at runtime in a view. That means ‘n’ labels for ‘n’ questions and ‘n’ labels for ‘n’ answers too. Does anyone have any suggestions about how to do this?
You probably will need to use the NSXMLDocument class to parse the XML file. Take a look at the documentation either at developer.apple.com or within Xcode by selecting "Documentation" under the Help menu.
Search for NSXMLDocument. Read the reference or click the link to read Tree-Based XML Programming Guide for Cocoa.
You can also find some sample code at:
http://www.mactech.com/articles/mactech/Vol.21/21.06/XMLParser/
Good luck.
If you are using one of the .NET languages to achieve this you might want to look into using a FlowLayoutPanel or a TableLayoutPanel and dynamically create your labels and add them to the panel.