kotlin for android : In this lesson, we share with you the GitHub links of the projects we have done during the course.

Is Kotlin or Java better for Android Development?

If you are building new Android apps, Kotlin is better suited because it is the recommended programming language for Android. If you are a first-time programmer, Kotlin is also a better choice as it has safety features and concise syntax that will help you focus on learning core program fundamentals. You should note that in some cases, employers may seek out Android developers that have Java programming skills. For example, if you plan on joining an organization that already has an Android app, they may already be using Java. If they already have an app written in Java, it is unlikely they will want to redesign the app in a different language, such as Kotlin. Therefore, you should look at the job requirements to see if the job posting you are interested in lists Java as a required skill.

In this lesson, we started to design the application. In this context, we have created the components that will display the transaction results.

In this lesson, we continue to design the application. In this context, we will create our buttons using grid layout.

In this lesson, we continue to design the application. In this context, we will create the landscape design.

In this lesson, we will show the numbers we clicked on the screen

In this lesson, we will create the necessary functions for addition, subtraction, multiplication and division operations.

In this lesson, we will write the necessary codes to performing calculations

In this lesson, we activated the "AC" and "DELETE" buttons and wrote the necessary methods in order to delete the data on the screen.

In this lesson, we have done the necessary coding to show the calculation steps made by the user on the screen.

In this lesson, we tried to avoid the errors that can be caused by the use of the "Dot" and "Del" buttons

In this lesson, we tried to avoid the errors that can be caused by the use of the "Equal" button

In this lesson, we will add the switching to dark theme functionality to the app

In this lesson, we will save all data to prevent data loss when the screen orientation

In this lesson, we designed the Splash Screen activity and created the XML codes required to add animation to the components we use in the design.

In this lesson, we will apply the animations we created in the previous video to the components.

In this lesson, we will design the home page.

In this lesson, we will write the necessary codes for the home page

In this lesson, we will design the game screen.

In this lesson, we will create the game logic

In this lesson, we will showe the results to the user using Dialog message

In this video, we will develop an android application named To-Do List. This project will be made in the form of a list, the topics that the user can store an application might want to remember that these notes and take notes.

In this lesson, general information about the app was given and the finished version of the application was introduced.

In this video, we will design the first page and we will write the necessary codes for the first page

In this video, we will design the game page.

In this video, we will write the necessary codes for the game.

In this video, we will create a timer.

In this video we will design the result page and we will wrte the necessary codes for the result page.

We will briefly explain what a database is and how it works. An important issue for those who do not know about the database.

In this lesson, we will talk about the SQLite database. This database comes ready for android devices. For this reason, it simplifies our transactions.

Now we can switch to our main topic, the Room database. Room database is a new concept in Android and it makes database operations seriously easy.

Architectural components are components that work with the room database and help us develop a quality application. It is important to use these components together with the room database.

In this lesson, we will take a look at the finished project before we start developing our sample project. Thus, we will have an idea about how to develop an application.

Now we will create our new project and add the necessary libraries to our project in order to use the room database.

We start our project by adding the first architectural component. The name of this component is entity. We will write the necessary codes together.

Now we can write the necessary codes to add the second component, the Dao architectural component.

Now we will create the database component from the components that make up the room database. Database is the section where data is stored.

In this lesson, we will create the Repository component. It is used to transfer data from the repository room database and other databases to the application correctly.

The ViewModel component performs the function of maintaining data continuity so that data is not lost when the application is thrown into the background or the screen is rotated.

Now we can design the user interface of our application. In this section, we will make the necessary design together for the user to use the application in a healthy way.

In this lesson, we will learn how to display the data we get from the database on the recyclerview. We will write the necessary codes together.

Now we will learn how to add data to the database via the user interface. We will store the data entered by the user in the database together.

In this lesson, when the user deletes a data from the application, we will delete this data from the database together.

As you know, one of the important issues in such applications is that the user can change a previously recorded note. This process is actually a data update process. We will learn how to update data.

In this video, we will start our project. We will develop the project step by step together. We will start the development process by designing the splash screen. While designing this screen, we will learn new topics. One of these topics is animation. We will introduce animation in Android applications.

After designing the first splash screen of the application, it is now time to log in to the application using the user's e-mail address and password. First we have to design this page. The design process is important in terms of user experience. For this reason, it is important to make a beautiful and useful design.

After the login page design, it's time to create the user's first membership. The user will create a membership with his e-mail address and a password that he has determined. We will write the necessary codes for this process.

In this lecture, we will integrate the android app with the Firebase project

After creating a membership, the user will log in to the application with his e-mail and password. In this login process, he will use the e-mail address and password that he has previously determined. We should compare the information entered by the user with the information entered when creating a membership, and if it is correct, we should allow him to enter the application.

What will the user do if he forgets his password? This process is vital for the application. When the user forgets his password, we need to take the necessary actions to set a new password.

For users, entering e-mail and password while creating a membership can be boring. For this reason, adding the feature of logging in with a google account, which makes the membership creation process easier, will increase the quality of the application.

After the login process is completed, it is time to design the homepage that will appear in front of the user. This page will be a page containing many basic functions that the user will use continuously.

After the homepage design is finished, we can now move on to the design of the page where we will show the questions to the user. In this page, the timer will contain the correct and incorrect numbers, the question and the answers.

After the design of the page where we will show the questions, now it's time to create the database. We should add questions to the database and design the database so that we will show these questions in practice.

Now that our database and the page design where we will show the questions are ready, it's time to show the questions in the database in the application. We have to write the necessary codes for this process.

Now it's time to get the user's answer. We will compare the answer we receive from the user with the correct answer option in the database and decide whether the user's answer is correct or incorrect.

The user is required to answer the questions within a certain period of time. At the end of this period, if the user has not answered the question, he will no longer have a chance to answer and can move on to the next question. We will do this by creating a timer.

The user has to answer the questions within a certain period of time. At the end of this period, if the user has not answered the question, he will no longer have a chance to answer and will be able to move on to the next question. We will do this by creating a timer.

As the user answers the questions, we will collect points and when the contest is over, we will store the score in firebase. You can then use these scores to create a leaderboard if you wish.

In this lecture, we will create a dialog message.

Now we come to the last part of the application. In this section we will show the user's score. We will also provide the user with options such as exiting or restarting the application.

In this lecture, instead of retrieving all the questions in the database, we will do the necessary operations to only retrieve a certain number of questions.

The Android platform is increasingly popular with developers and a dominant force in the global smartphone market As more businesses develop mobile apps for customer engagement, Android development skills are likely to stay in high demand

Kotlin is a statically-typed, general purpose programming language used to develop for the Java Virtual Machine and Android devices. Kotlin is an amalgamation of the object-oriented and functional programming paradigms and can also be compiled to JavaScript source code.