Dart and Flutter: The Ultimate Mobile App Development Course

Build your first app with a hello world example and explore commands in Dart, including the types of commands and how to use them.

Create a first Dart application by writing a main function and using the print statement to display Hello World, integers, booleans, and simple arithmetic in the console.

Explore Dart comments, including single line, multi-line, and documentation comments, and learn how they are ignored by the Dart compiler to improve code readability and documentation.

Conclude this section by building a Hello World app, exploring the main function, using the print function in various ways, and applying different commands in a practical example.

Explore the core data types in Dart, learn how to declare variables, use literals, perform string interpolation, and define constants with final and const.

Declare variables in Dart using type syntax, type checking, and dynamic; understand identifiers and naming rules, plus null values. Explore numbers, strings, and booleans as core data types.

Explore literals and string interpolation in Dart, learning how to declare string literals with single or double quotes, escape characters, and interpolate variables and expressions in outputs.

Define constants in Dart using final and const, compare their runtime versus compile-time behavior, and apply static const for class-level constants with practical examples.

Master variables, literals, string interpolation, and const versus final declarations in Dart, with practical guidance for future app development.

Explore conditional statements in Dart, including if, if-else, else-if ladders, conditional expressions, and switch cases, and learn how boolean conditions determine which blocks execute.

Master conditional statements by writing if, else, and else-if ladders to guard code blocks with boolean expressions. Explore their syntax, execution flow, and practical examples that handle multiple conditions.

Master conditional expressions in Dart by using the ternary operator for conditionally executed expressions and the null checking expression for evaluating non-null values, with practical examples.

Learn how the switch case statement in Dart evaluates an expression, matches it to case clauses, and executes the corresponding block with optional default handling and break control.

Master conditional statements in Dart and Flutter, including if statement, if else statement, else if ladder, switch case, and conditional expressions, as covered in this section.

Explore iteration concepts in Dart and Flutter by examining definite and indefinite loops, including for loop, for in loop, while loop, and do while loop, plus break, continue, and labels.

Learn how to use for loops in Dart and Flutter, including initialization, condition, and increment, to control a loop body that prints hello world multiple times.

Learn how the for in loop iterates each element from an object or list, binding it to a loop variable and printing items like fruits.

Master how the while loop evaluates a condition before each execution and uses syntax while (expression) { statement } to run code, exemplified by printing a multiplication table.

Explore the do while loop, which executes the body before checking the condition, guaranteeing at least one execution. Compare it with the while loop and pre-test versus post-test use.

Discover how the break statement terminates a while loop, printing from 1 to 20 when i reaches 20. It takes control out of the loop and ends execution.

Demonstrates the continue statement in a for loop, skipping a specific value (16) while printing numbers 1 to 20, by directing control back to the start of the loop.

Explore how labels control program flow in Dart and Flutter examples, using labeled breaks and continues in nested loops, with string interpolation to print i and j.

Explore iterative statements and loop categories in Dart and Flutter, including definite and indefinite loops, for, for-in, while, and do-while loops, plus take, continue, and label statements.

Explore how to define, call, and return values in functions, and master parameterized functions with required, optional positional, named, and default parameters to write modular, reusable code.

Define and call functions to organize code, return values, and reuse logic in Dart and Flutter. Learn function declaration, definition, parameter passing, and using void and return types.

Learn to write arrow functions (lambda) in Dart, using fat arrow syntax, optional return types, and string interpolation, demonstrated with a runnable main example.

Learn about optional parameters in Dart, including three types: optional positional, named, and default values—plus how omitted arguments become null and how to place them as the last argument.

Explore optional named parameters in Dart and Flutter, using curly braces and named arguments to pass values, chain parameters, and handle null when omitted, with practical examples.

Learn how optional default parameters work in Dart by assigning default values and overriding them when you pass new arguments, illustrated with city names.

Master functions by learning what a function is, how to define and call it, and how to return values. Explore required and optional parameters, including positional, named, and default parameters.

Learn exception handling in Dart and Flutter with try, catch, finally blocks, stack traces, and custom exceptions. Explore types like format exception, integer division by zero, exception, isolate, and timeout.

Learn to handle exceptions in Dart using try, on, catch, and finally blocks, illustrate integer division by zero errors, custom messages, and stack traces.

Define and use a custom exception handling class to validate a number, throw a check negative exception for negatives, and handle with try, catch, and finally to display error message.

Master exception handling in dart and flutter by using try catch and finally clauses, examining stacktrace, and creating a custom exception handling class.

Master object oriented Dart by defining classes and objects, using variables, inheritance and method overriding, abstract classes and interfaces, constructors default, named, and parameterized, getters, setters, and static members.

Explore object oriented programming in Dart by learning classes and objects as a blueprint, and how inheritance, abstract classes, and polymorphism shape data hiding and behavior.

Explore what a constructor is, how to define default and parameterized constructors, and how named/custom constructors enable multiple initializations, with examples of initializing class variables.

Explore getters and setters as accessors and mutators in Dart, define them with get and set, and compare default versus custom implementations using an employee salary example.

See how inheritance creates a new class from a base or parent class and reuses properties such as model, name, mileage, and year. It covers single, multi-level, and hierarchical inheritance.

Learn how method overriding drives polymorphism by redefining a superclass method in a subclass, using the super keyword and preserving interface with the same name, arguments, and return type.

Learn how abstract classes in Dart provide a base for subclasses by declaring abstract methods and optional concrete methods; they cannot be instantiated and must be extended with implementations.

Explore how interfaces define a contract for classes, using implements to enforce method implementations and enable multiple inheritance in Dart, demonstrated with employee, engineer, and person examples.

Demonstrate the static keyword by explaining class level variables and methods, accessible via the class name without objects, persisting across instances and supporting memory management of shared data.

Define class and object, explore instance, field, and reference variables, and examine constructors, including default, named, and parameterized. Practice getter, setter, inheritance, method overriding, abstract classes, interfaces, and static members.

Discover functional programming concepts in Dart and Flutter, including lambda expressions, higher-order functions, and lexical scope with lexical closure.

Explore lambda functions (anonymous functions) in Dart and Flutter, understand closures, declare and assign nameless functions, and call them with various arguments.

Learn how a high order function accepts a function as a parameter and can return a function, illustrated with a message and a sum function that prints results.

Explore lexical scope and closures in Dart, showing how a closure preserves access to its parent scope and can override variables in its surrounding context.

Wrap up this section by reviewing anonymous function and lambda function, higher order functions, and lexical scope and lexical closure to reinforce Dart and Flutter concepts.

Explore dot collection concepts in Dart, including dot list or array, fixed-length and growable lists. Clarify map and map hash concepts as covered.

Learn how Dart lists mirror arrays, including fixed length and growable lists, zero-based indexing, length, and common iteration methods like for in, for, and for each, plus add and remove.

Learn how sets provide an unordered, unique collection of values in Dart. See hashset as a set implementation, use set.from, add elements, and iterate to understand how duplicates are avoided.

Explore maps and hash maps as dynamic key-value collections in Dart, using literals or constructors, and learn to print, iterate over keys and values, and update entries.

Review core data structures in Dart, including arrays or lists, fixed and growable lists, sets and hash sets, and maps and hash maps.