Xamarin Android: Learn to Build Native Android Apps With C#

Install and configure Visual Studio on Windows, using the 2019 Community Edition, to enable Xamarin mobile development with .NET by downloading and setting up the Android SDK.

Install Visual Studio for Mac by downloading the community edition, running the installer, ensuring enough space and internet connectivity to set up and start building apps with C#.

Launch Visual Studio 2019 and create an Android project by selecting the Android app template, naming it Halo world, and choosing a blank or navigation drawer with Android 5.0.

create an android app project on mac by selecting android app, naming the project, setting the organization identifier, and choosing android platform, then preview the template in the android designer.

Explore the Visual Studio environment for Android development, navigating the solution explorer, properties, and resources. See how the design and coding work together on layouts, manifest file, and device previews.

Create and start an android emulator using the android device manager in Visual Studio, configure device and RAM, install the system image, and run the app for testing.

Create and customize an Android emulator on Mac, adjusting screen size, RAM, and OS in the Device Manager, then deploy and run your app on the emulator.

Explore the Android sdk manager and sdk, review versions and tools, and learn how to locate and update the sdk and jdk to build native Android apps with C#.

Build the first Android app that selects a lucky number from 1 to 10 using a seek bar, shows random results, and demonstrates how the user interface design connects to code.

Create a new Android project and design the user interface with a vertical linear layout, text views, a seek bar, and a button; adjust text size, gravity, margins, and IDs.

Connect your activity design to code by referencing views with findViewById, bind text views and buttons, and update UI properties at runtime in Xamarin Android.

Add a button click event handler in Xamarin Android to generate a random lucky number from a seek bar's progress and display it in a TextView.

Create a custom Android launcher icon from a downloaded image using a launcher icon generator; choose background and shape and prepare the icon set for the lucky number app.

Set a custom launcher icon for your Xamarin Android app by preparing multi-resolution assets, copying them to the correct folders, and updating the manifest and activity icon.

Set up a physical Android device for app testing by activating developer mode and enabling USB debugging. Connect the device to Visual Studio to run tests beyond the emulator.

deploy your Xamarin Android app to a physical device, install the necessary dependencies, and verify the launcher icon appears as you test real life behavior on the phone.

Discover what c# is, a language developed by Microsoft. Learn how dotnet core and .NET framework run c# on Windows, Linux, and macOS to build web, Android, and iOS apps.

Set up a Windows console application to practice the fundamentals of C#. Explore .NET Core for cross-platform runs across Linux, Mac OS, and Windows, or the .NET Framework for Windows.

Create a brand-new console application in visual studio for mac to practice the fundamentals of C#, explore dotnet templates, and learn cross-platform deployment on Windows, Mac, and Linux.

Learn to print hello world to a console window using Console.WriteLine, and keep the program open with Console.ReadKey, while exploring C# concepts like using System, namespace, class, and entry point.

Explore primitive data types in C# by defining and initializing integers, doubles, strings, characters, and booleans, and printing values to the console to illustrate basic variable usage.

Learn to convert a double to a string for display in a text view, and cast between double and int using implicit and explicit casting.

Use basic C# operators—addition, subtraction, multiplication, and division—to perform supermarket calculations, including gross income, expenses, profit, and cash, with user input and console output in this Xamarin Android course.

Master string concatenation by joining chunks with the plus operator and converting to strings. Use string interpolation with a dollar sign and braces to compute profits inside strings, reducing code.

Learn how to define and call methods in C# with practical examples, including invoking static methods, using void, and computing areas and business cash flows in a console app.

Define double parameters for length and width, pass them as arguments to the calculate area method, and verify the rectangle area is computed and displayed in the console.

Define methods with a return type, compute profit from gross income minus expenses, and return the value to the caller. Verify with static examples and various return types.

Learn condition statements (if, else if, else) in C# for Xamarin Android, test conditions, and use logical operators to branch logic with weather and age examples.

Explore how to use a for loop and a while loop in C# to repeat a task ten times, printing each count, for native Android apps with Xamarin.

Explore arrays in C#, learning to define, size, and initialize double and string arrays, access elements with zero-based indexing, and print values to the console.

Explore object oriented programming by mapping real life objects to code objects, using classes as blueprints to create computer objects with defined properties and constructors.

Create and manipulate generic lists in c#, including doubles, strings, and student objects; add items, index to retrieve values, and print student names and courses.

Learn how events in C# trigger actions from clicks and key presses to custom publisher-subscriber patterns, with practical examples like a bitcoin miner and mining rewards events.

Learn how delegates act as pointers to methods and as a communication link between classes. See how to define, reference, and invoke delegates, including return-type delegates and cross-class data flow.

Explore lambda expressions in C# to implement delegates with anonymous methods, using practical examples to write to the console and calculate a rectangle’s area.

Build an income planning app with Xamarin Android that calculates income, tax, savings, and take-home spend from hourly wage and hours worked, with 39 percent tax and 20 percent savings.

Design an Android app layout with XML by creating a project, using a linear layout, setting orientation and margins, and adding text views, inputs, IDs, and a button for preview.

Learn to implement a text input layout as a container for input fields, apply system layout, and preview animations in a Xamarin Android app.

Learn how scroll view enables containing many views and handling overflow by wrapping a linear layout in a vertical scroll view, ensuring the user interface works across different screen sizes.

Explore how relative layouts position views relative to siblings and the parent, enabling left, right, top, bottom, and center alignment for a flat, high-performance UI in Xamarin Android.

Reference and connect UI views from the design in the main activity using findViewById and a connectViews method. Wire text views, buttons, and layouts to drive calculations and display results.

Format calculation results in a Xamarin Android app by using format strings to add thousand separators and a currency symbol, improving readability and usability.

Implement a clear input routine in a Xamarin Android app to reset income, work hours, tax rate, and saving rate after calculations, and hide results.

Learn to design beautiful Android apps by applying shadows, rounding images, and assembling views in a simple money app, preparing you to build visually appealing native Android apps.

Design a money app user profile by building an Android layout with a profile image, name and location text, and a star rating using vector drawables.

Define a custom orange color in colors.xml, centralize color codes as a resource, and apply it to the star images using ImageView tint in Android.

Learn to make a profile image circular by installing a nuget package, using the circle image view from refracted controls, and adjusting 15 dp left margins in the layout.

Add rounded edges, a thin stroke, and shadows to a relative layout by creating a shape drawable with corner radii and applying it as background in a Xamarin Android project.

Design the account balance section using a relative layout with a centered, bold balance value. Set layout weights and alignment to position the balance label and value.

Design the transactions history section in the money app by building a list-like layout using linear and relative layouts, with image views and text views displaying names, dates, and amounts.

Create a round button template in Android using a selector with normal, pressed, and disabled states, applying a gradient, stroke, and rounded corners to two horizontally aligned buttons.

Add a vector drawable icon to an Android button by downloading a history icon from Google design icons, placing it in the drawable folder, and applying android:drawableLeft with 16dp padding.

Apply a custom font to your Android app by adding fonts and using the calligraphy package. Initialize calligraphy in the main activity and set the default font to ensure branding.

Create simple app mockups to visually represent your idea, including colors, buttons, and inputs, to show the end product, organize ideas, communicate concepts, gather feedback, and speed development.

Install Adobe XD via Creative Cloud, sign in with a free account, and install XD; restart your system and launch to start designing your app.

Explore the Android UI design bundle to quickly prototype native Android apps. Copy preset elements like toolbars, chat interfaces, map interfaces, checkboxes, and radio buttons to assemble your app.

Design and implement a native android login screen from a mockup by adding the Uber icon, email and password fields, a login button, and social icons.

Discover where to download copyright-free icons and high-definition images for your Xamarin Android app, using material icons and other free sources, and learn how to download appropriate densities for Android.

Learn to create a background image and splash screen for Android apps using Canva, including cropping to 720x1280, applying a blue overlay, and styling text.

Design a complete quiz app interface using Adobe XD design bundles, prototype interactive screens with repeat grid cards and a toolbar, and add a start button.

Design a complete quiz app screen by implementing a timer, a question indicator, and multiple-choice options with radio buttons, plus score display and feedback dialogs for correct or wrong answers.

Prototype your Xamarin app by linking the history card to a description page, apply slide left or right animations, and test back and home navigation for realistic interactions.

Explore design idea sources like overlaps the com, dribble, and all clubs com, search for a contacts app, and combine ideas to craft a unique, top-notch Android design.

Learn to build a topic-based quiz app in Xamarin Android, featuring a splash screen, topic selection via navigation drawer, time-limited quizzes, answer feedback, and an activity lifecycle with MVC architecture.

Design the main page for a Xamarin Android quiz app using a grid layout of six topic cards in a two-by-three grid within a scroll view.

Learn to theme your Xamarin Android app with styles.xml by creating reusable styles, defining color resources (color primary, color accent), and applying them via a base theme to all views.

Design and add a splash image, configure a splash activity and style, and set it as the main launcher to display a polished startup screen in a Xamarin Android app.

Design a quiz description page in Android by creating a layout with image, topic, and description, then add a round start button using a template and switch to a toolbar.

Replace the action bar with a toolbar, define and reference it in the layout, then set it as the support action bar and customize the title and icon.

Navigate between activities by setting up click handlers, create intents, and pass the selected topic with putExtra to the description activity, then retrieve it on the target screen.

Display data passed to the activity by retrieving a string extra from the intent and binding it to the quiz topic and description views, enabling quick access to related topics.

Learn to dynamically set a quiz description image by topic using a getImage method that maps topics (history, geography, space, engineering, etc.) to drawable resources and updates the image view.