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Android Development with Kotlin course
- 1. Android With Kotlin course Mohyddine Al-lahham Application Developer | Ex- Software Engineer at CME Lebanon. Tiktok and Youtube @lebanese Developer Introduction | 9:00 pm Beirut time Eslam Medhat Application Developer | Trainer @BambooGeeks @madahetooo
- 2. The reason Android rules the app market is its ability to run on more devices than its competitors. Manufacturers that make devices supporting Android apps outnumber those developing to suit iOS specific apps. The simple reason being that an Android device will be used by more number of people, owing to the ‘affordability’ part. Thus, Android application development proved to be the wiser and a more profitable option. Why Android Development?
- 3. Why is Android development Kotlin-first? ● Expressive and concise: You can do more with less. Express your ideas and reduce the amount of boilerplate code. 67% of professional developers who use Kotlin say Kotlin has increased their productivity. ● Safer code: Kotlin has many language features to help you avoid common programming mistakes such as null pointer exceptions. Android apps that contain Kotlin code are 20% less likely to crash. ● Interoperable: Call Java-based code from Kotlin, or call Kotlin from Java-based code. Kotlin is 100% interoperable with the Java programming language, so you can have as little or as much of Kotlin in your project as you want. ● Structured Concurrency: Kotlin coroutines make asynchronous code as easy to work with as blocking code. Coroutines dramatically simplify background task management for everything from network calls to accessing local data.
- 4. From Android Website: What does Kotlin-first mean? When building new Android development tools and content, such as Jetpack libraries, samples, documentation, and training content, we will design them with Kotlin users in mind while continuing to provide support for using our APIs from the Java programming language.
- 5. 1. Introduction to Kotlin programming language. 2. Object oriented programming with kotlin. Our Learning Plan For Sep-Oct 2021
- 7. - Kotlin is a general-purpose, statically typed, and open-source programming language. - It runs on JVM and can be used anywhere Java is used today. It can be used to develop Android apps, server-side apps and much more... - Similar to Java, but free of its legacy problems and limitations. - Can be freely mixed with Java (6+), existing codebase, ecosystem (Maven, Gradle), libraries etc. - Easy learning curve (similar to Java/C#/JS), modern & fun!
- 8. Kotlin History - In July 2011 JetBrains unveiled Project Kotlin, a new language for the JVM, which had been under development for a year. - Kotlin v1.0 was released on February 15, 2016. - This is considered to be the first officially stable release and JetBrains has committed to long-term backward compatibility starting with this version. - At Google I/O 2017, Google announced first-class support for Kotlin on Android.
- 9. How Java and Kotlin Works!
- 10. Reasons to love Kotlin 1. Concise 2. Null safety 3. Interoperable 4. Smart Cast 5. Compilation Time 6. Tool-friendly 7. Extension Function 8. Multiple Items in File 9. Open Source
- 11. Concise Kotlin reduces the amount of boilerplate code that you have been writing all the time in other OOP languages like Java. • For example, You can create a POJO class with getters, setters, equals() and toString() methods in a single line.
- 14. Kotlin Basic Syntax 1. Variables 2. Data Types 3. Conditions (If, Else – When) 4. Loops (For – While – Do While) 5. Functions 6. Classes 7. Properties
- 15. val - Read-only local variables are defined using the keyword val. They can be assigned a value only once. - Variables that can be assigned using the var keyword.
- 16. var
- 18. String Data Type
- 19. String Data Type
- 20. List Data Type
- 21. Conditions
- 22. Condition (When)
- 23. Loops ( For & While & Do while
- 24. Simple Function
- 26. Very Very Simple Function
- 27. Null Safety Kotlin is null safety language. Kotlin aimed to eliminate the NullPointerException (null reference) from the code.Interoperable.
- 28. Smart Cast - It explicitly typecasts the immutable values and inserts the value in It's safe to cast automatically. - Being explicit means being specific about your design choices and not hiding anything from the readers or consumers of your code.
- 29. KOTLIN IS FAST