Web Scraping: Build Cross-platform Apps with Xamarin Forms

Learn how web scraping extracts data from websites by sending a GET request, parsing the document, and converting results into a chosen format, while navigating layout and language challenges.

Introduce web scraping with C# and Xamarin Forms by building a console app, installing a NuGet package, then transitioning to a Forms app to develop a dynamic scraper.

Learn to load and parse documents in a Xamarin forms project by instantiating the document class and using its load method on local files or websites; later, explore selectors.

Explore how to use selectors in web scraping to retrieve text and attributes from document nodes, including select single node and select nodes, using XPath expressions.

Access and display content by using the text property on the anchor deck, then retrieve nested decks with the estimate property to view their text.

Scrap automobile data from a website using a C# console app, extracting car names and prices via HTML parsing and DOM traversal, including anchors and attributes.

Scrape shoe data from Servis Shoes using C# by loading the page, navigating div nodes with descendants, and extracting image sources, names, and prices.

Scrape data from IMDb using a C# console app with Istomin agility pack, load the page, traverse descendants, and extract image source attributes, then shift to a Xamarin Forms project.

Create a Xamarin Forms project from a template and load four projects into the solution: a portable class library and three platform projects, including Android and Windows, to share code.

Install and configure NuGet packages for a Xamarin Forms project by searching for agility back and MBB, then installing them across all projects; the packages are open source and free.

Demonstrates building a cross-platform Xamarin forms mobile app from a website without an api, featuring navigation to home, about, products, news and events, sports, and image handling.

Create a home page in a Xamarin Forms app using the model-view-viewmodel pattern, with a four-row by two-column grid, images and labels, and bind commands to navigate to other pages.

Scrape product data from a website and display it in a Xamarin Forms app by modeling categories and products, binding a collection to a list, and enabling navigation.

implement a gallery page in a Xamarin Forms app by fetching images from a website and binding them to an observable collection in a ListView, displaying each image.

Scrap images from the website to populate the news and events page in Xamarin Forms using a news and events model with an observable property and a list view.

Create an about us page by modeling a data object with title and description, supply it via a view model's observable collection, and bind to a list view.

Build a contact page in a Xamarin forms app with subject and message fields bound to a view model, using a plugin to send email via the device mail app.

Implement a Facebook page viewer in a Xamarin forms cross-platform app by using a device class to open the Facebook link in the default browser, and optimize performance.

Optimize Xamarin forms apps by implementing list view caching to load only visible cells and by showing a loading indicator during data fetch.

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