Welcome to the Dart programming language course. In this lesson, I will talk about why we need the Dart programming language. And we will briefly talk about what to do during this course.

Flutter is a Google SDK for building native interfaces for iOS and Android using the Dart programming language. Flutter can integrate with existing iOS and Android code bases. It's free and open-source.

Frequently asked questions about Flutter on Udemy

Why did Google create Flutter?

Flutter, first known as “Sky”, was announced in 2015 with Android support only. It was created to provide a better mobile experience for users and developers, taking the best parts of the web development experience, and bringing them to mobile. Its main goals were high-performance and portability across multiple platforms. While other cross-platform solutions such as React Native and Xamarin were already popular, they could not deliver the same fidelity and performance as apps built with the native iOS and Android SDKs. Flutter changed that by making it possible to create beautiful, performant apps across multiple platforms with a single codebase.

Is Flutter in demand?
Flutter has been a production-ready, stable product on iOS and Android since its official launch in December 2018. Big companies such as eBay, BMW, Alibaba, and Toyota are using Flutter as the core framework for their mobile app development strategy. Over a hundred thousand Flutter apps have already been published on the App Store and Play Store. After overtaking React Native in Google Search trends, Flutter is now the fastest growing software project on GitHub. By choosing Flutter, companies can deliver mobile apps in record time as they no longer have to build separate apps to support iOS and Android. This makes Flutter an ideal choice for startups, agencies, and small businesses, and as a result, the job market for Flutter developers is also expanding rapidly.

What applications use Flutter?
There are social networking apps for creating and sharing content, dating, and connecting people through events and real-life activities that use Flutter. Alibaba made a shopping app called Xianyu, which has more than 50MM downloads and more than 10MM active users every day. Nubank is the largest independent digital bank outside Asia, and its mobile apps are built with Flutter. Another shopping app is HuYu, which rewards users with gift cards and vouchers for sharing shopping receipts. You can also find music apps for recording and learning to read music. The Hamilton Musical and the famous Abby Road Studios created apps with Flutter. There are apps for sports, finance, fitness, education, animal adoption, mapped gas stations to compare prices, and a travel app. A Google Ads app helps mobile app customers track their ads.

What is Google Flutter?

Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Flutter was originally launched with support for iOS and Android. Flutter 2 was launched as a stable release in March 2021, with support for Windows, macOS, Linux, and web. Flutter runs with Dart, a programming language developed by Google. Dart is a strongly-typed, object-oriented language with a familiar C-style syntax. Developers can compile Dart programs into fast native code that runs smoothly on all supported platforms. On the web, Dart is compiled to JavaScript code that can run on the browser. Flutter is composed of three architectural layers: the Flutter framework, which is written in Dart and provides all the widgets that developers use to build their apps; the Flutter Engine, written in C++, which provides low-level rendering support with Google’s Skia; and the platform-specific Embedder, which talks directly to the operating system.

In this lesson, I will show you the necessary program applications to prepare dart applications. First, we need to install dart SDK on our computer.

Dart is a client-optimized language for developing fast apps on any platform. Its goal is to offer the most productive programming language for multi-platform development, paired with a flexible execution runtime platform for app frameworks.

Last lesson we talked to you about dart flutter programming language. In this lesson, we will talk about the editor we will use with you and we will be based on what we will do.

Dart is designed for a technical envelope that is particularly suited to client development, prioritizing both development (sub-second stateful hot reload) and high-quality production experiences across a wide variety of compilation targets (web, mobile, and desktop).

We talk about launch.json File Edit to Run in Debug Mode in flutter web .

Flutter projects

We set up the editor we will use in the last lesson and briefly explained some necessary points. In this lesson, we will now introduce the dart programming language. And again, we will briefly touch on important points that we need to know in flutter firebase

In this lesson, let's learn what variables and data types are the basis of programming. The first thing to do to perform an operation is to store that data. When you want to do the operation, it is necessary to recall the data from the memory. The recall job here is called "Variable" dart programming in mobile development .

Last lesson, we talked to you about the concepts of variable and data types. In this lesson, we can now begin to elaborate on this subject. First, we can start by exemplifying the number data types in Firebase .

In this lesson, we continue with data types. And in this lesson we will talk about string data type in flutter and dart and its properties.

The Dart language is type safe; it uses static type checking to ensure that a variable’s value always matches the variable’s static type. Sometimes, this is referred to as sound typing. Although types are mandatory, type annotations are optional because of type inference. The Dart typing system is also flexible, allowing the use of a dynamic type combined with runtime checks, which can be useful during experimentation or for code that needs to be especially dynamic.

We have talked about many data type features in fluter with you so far. And we will use the details as we go anyway. In this lesson, I would like to talk about the keywords final and const.

In the previous section, we talked to you about variables and data types in Flutter dart. Now we are starting a new chapter and we will go into more fine details. In this section, we will understand a little more programming logic and learn how to create conditions.

We talked to you about conditional statements in our last lesson and made small examples.In this lesson, we will talk about temary operator in dart programming .

In this lesson, we will learn to use the switch control structure in flutter web with you.

Dart: We started this section with you on the subject of conditionals. And at the end of the dart episode, I want to reinforce these issues with small examples. In this lesson, we will first make an example using the if, else if statement. Then we will do another example using switch case statements.

Dart Language: We talked to you about conditional statements in the last lessons. And finally we talked about the switch case structure. In this lesson, we will talk about operators dart flutter with you.

Dart Language: In this lesson, we will continue the topic of operators in mobile development. Now I'm defining a new number.

In this course, we will introduce you to the topic of loops, which is very important for flutter programming languages . So we will talk to you about repetitive situations. And we will find out what we can do in these situations in mobile app marketing .

Last lesson, we introduced the topic of loops and talked about the for loop. In this dart and flutter lesson, we will talk with you about while loops.

We've been talking about loops for a few lessons. And in this lesson, we will talk about continue and break constructs in dart flutter and finish loops

Dart programming language: I want to reinforce what we learned about loops by doing a few examples with you in this lesson. Let's start our examples without losing time, if you want.

Dart, Flutter, Dart and Flutter; I would like to talk about the process of getting information from users with the help of console.

Dart Flutter, Dart Programming Language;  Last lesson we talked to you about getting data from users via terminal. In this lesson, I would like to reinforce this subject by making small repetitions

In this section, we talked about the collection structures in general. In our Bud lesson, I would like to talk about how we will deal with these collection structures in flutter and what we should pay attention to.

We are starting a new chapter with this topic. And we will talk about functions, which are important in dart programming language

In this lesson, we will try to understand functions in Dart Flutter better with you. And we will try to understand how the functions are shorthand.

In this lesson, we will talk about different methods that will be useful in flutter. Yes, we can start our lesson quickly by preparing a new method.

In this lesson, we start with you the section of lists in flutter and dart , which is an important topic. If you already know a different language, you know the concept of Array.

In our last lesson, we talked about the use of lists and fixed-length lists in dart language. In this lesson, we will talk about lists that can grow and shrink.

In this section, we continue to talk to you about list structures, and in this lesson we will talk about methods to help us use lists.

In this lesson, as we mentioned before, we will talk about the set structure in google flutter and usage, which is similar to lists.

in this lesson, I will talk about another collection structure in dart flutter in mobile development , the map. In the map structure, the data is stored in an unordered way, as in the set.

Flutter; In this section, we talked about collectible buildings. Let's reinforce what we have learned by preparing a few examples in this lesson.

With this lesson, we will explain the object-oriented programming logic, which is one of the most important concepts in programming languages in flutter and dart .

Last lesson we tried to understand object oriented logic and learned class structure. We created a car class and created objects in flutter firebase and explained the features through them.

Dart; In this lesson, I want to talk about factory constructors

In our last lesson, we talked about constructive methods with you. In this lesson, we will talk about private values in Dart and Flutter and getter setter methods.

Dart and flutter; In this section, we learned the concepts of class, object and constructor method. In this lesson, I would like to make examples to reinforce what we have learned.

In the last lesson, we created a rectangle class and we did operations on it. Let's continue with a new example in this lesson.

In this section we will talk with you about inheritance and polymorphism. In this lesson, we will first try to understand the inheritance issue theoretically that is useful for dart fluter with you.

We will try to learn the subject of inheritance, which we talked about theoretically in the last lesson, practically in this Google Flutter lesson.

In this lesson, we will try to understand the subject of polymorphism in dart flutter with you.

We talked to you both about inheritance in Dart and about constructors. Actually, if we understand these topics, I think we will grasp this lesson quickly. We'll only talk about minor changes to constructor usage in inheritance.

In this lesson, we will talk about abstract classes in Google Dart Flutter with you. Let's define abstract classes in general and then try to understand their logic.

In this lesson, we will talk to you about the concept of interface. Actually there is no interface in dart language . But we can use implements keyword like interface.

In this lesson, we will talk about static methods and variables. In some cases, we may want to access the methods and variables in our classes google flutter without generating objects. In such cases, we will see the static keyword.

:In this lesson, we will talk about immutable variables, namely final in dart flutter and const expressions.

In the last lesson, we talked about the concepts of final and const. And we talked about how to use these concepts and the differences between them. In this lesson, we will learn how to use these concepts for classrooms in DART .

Today we will talk to you about lambda functions in google dart flutter , that is, anonymous functions. Lambdas are functions without a name. Normally, when we were talking about functions, we described them as functions that return values and those that do not. Or we talked about functions that take parameters or not.

Last lecture we talked about anonymous functions in dart language . In this lesson, we will talk about the concept of higher order function. And actually this is a very important concept for us. Higher order functions are functions in flutter dart that take a function as a parameter or return a function. Of course, these functions can do both at the same time.

In this lesson, we will talk about closure functions. Closure functions are special functions and with these functions, Google Dart can change variables in a parent scope. So how can it do this, we start to examine this situation.

In this lesson, we will learn more about the lists that we talked about before. If you ask why we went back to the list issue, we needed to learn about object oriented and functional programming in order to talk about these issues. And we will talk about lists a lot in flutter lessons. That's why I want to talk to you in more depth about the list issue before I go to flutter.

We continue with the List class. We have already talked and used the methods of lists with you before. In this course, I would like to examine a little more in detail and talk about the methods that are important to us. Also I want to do this through dart documentation.

In this lesson, I would like to talk to you about the operations we can do with maps. Because I want you to learn the map structure in more detail.

Last lesson we talked about functions with various parameters. In this lesson, I will talk about exceptions with you.

In our previous lesson, the system threw an error and we tried to catch these errors with catch-on. So, can we throw an error by thinking that there may be an error while writing a code? That's what we're going to talk about in this lesson.

We learned the concept of Exception and the use of throw. So how can we customize these exceptions for our own use? In this lesson, we will learn to create error classes with you.

In this lesson, we will talk to you about the concept of Generic, which is a new topic. Explains generic type-independent expressions in Dart.

Last lecture we talked about generic types and talked about their importance. In this lesson we will talk about creating classes using generic types.

In this section, we will learn about the use of asynchronous programming Future class, which is a very important topic. First of all, in this lesson, we will try to understand what asynchronous programming is and how to use it with examples.

In the last lesson, we talked to you about the logic of asynchronous operation and tried to understand it with examples. Let's make this situation clearer by moving to the coding part in this lesson.

In the last lesson, we tried to understand asynchronous structures through code. In this lesson, we will continue this structure and talk about different methods that will help us. So without wasting time, let's get started.

We will continue future operations in this lesson

In this lesson, I would like to prepare future examples with you and let us understand the future subject we have learned so far a little better. We will prepare a few examples so that we can better understand the asynchronous structure described in this section.

In the last lesson, we started to prepare examples to reinforce the future structures. And after a certain time, according to the given student number, I prepared the method that gives the student's name. Afterwards, we prepared a method in a list of the courses taken by the student according to this student name. And we call this method where we get the result of the first method. Because first of all, this method needs to result and we can obtain this list according to the result from it.

In this lesson, I will give some extra flutter information and we will have completed this section.

In this section, I will talk about the null safety feature, which is one of the most important features that I mentioned while teaching the lessons and that entered the Dart language with Dart 2. In this lesson, I will briefly explain what null safety is and why it is important, and then I will continue to give small information that is important to us.

I briefly talked about what is a null value and why it is used in some situations. Now I will talk about the use of null in dart language.

We continue with my Null safety lecture. And in this lesson, we will talk about situations that may come up again.

We continue the topic of Null Safety.

Before starting our course, I would like to understand and introduce Flutter. What is flutter? And this lesson we will look for the answer to this question

Flutter is a Google SDK for building native interfaces for iOS and Android using the Dart programming language. Flutter can integrate with existing iOS and Android code bases. It's free and open-source.

Flutter is powered by Dart programming language optimized for fast apps on any platform

In this lesson, we will talk about why we should choose flutter while preparing an application

What is Google Flutter?

Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. Flutter was originally launched with support for iOS and Android. Flutter 2 was launched as a stable release in March 2021, with support for Windows, macOS, Linux, and web. Flutter runs with Dart, a programming language developed by Google. Dart is a strongly-typed, object-oriented language with a familiar C-style syntax. Developers can compile Dart programs into fast native code that runs smoothly on all supported platforms. On the web, Dart is compiled to JavaScript code that can run on the browser. Flutter is composed of three architectural layers: the Flutter framework, which is written in Dart and provides all the widgets that developers use to build their apps; the Flutter Engine, written in C++, which provides low-level rendering support with Google’s Skia; and the platform-specific Embedder, which talks directly to the operating system.

In this lesson, I will briefly talk about what is available in a flutter application.

Flutter was originally launched with support for iOS and Android. Flutter 2 was launched as a stable release in March 2021, with support for Windows, macOS, Linux, and web. Flutter runs with Dart, a programming language developed by Google.

We talked about Flutter and sought answers to the questions of what it is and why it is used. And now we can say that we have basic knowledge about flutter. Before I start Flutter installations, I want to talk about Flutter versions