Getting started with android development
- 1. Getting started with Android Development (An Introduction)
- 2. Before Android let’s look at different ways to develop mobile applications ❏ Web ❏ Hybrid ❏ Native
- 3. Which way to opt. for….
- 4. Ok now, What is android? ❏ Developed by Google Inc. ❏ Android is nothing but an operating system. ❏ Android is an open source and Linux-based Operating System for mobile devices such as smartphones and tablet computers. ❏ Android offers a unified approach to application development for mobile devices.
- 5. Versions of android... ❏ The Android OS is divided into various version numbers, implying significant jumps in features, operation, and stability, which usually have codenames. ❏ Different versions:
- 6. Why android?
- 8. Career in android ❏ Is android a good and viable career? ❏ Be specific about which option you are going to choose. ❏ Is it worth learning in 2020 or ahead?
- 9. Now let’s have some technical talk…. Before you start developing App. in Android you need: ❏ To know which language to opt. For? ❏ And, which software(IDE) to use for your app development?
- 10. Languages that can be used to develop an Android App. ❏ Java ❏ Kotlin ❏ C++ ❏ C# ❏ Or others.
- 11. Prerequisites Things you need for android development in java: Operating system: ❏ Microsoft Windows XP or later version. ❏ Mac OS X 10.5.8 or later version with Intel chip. ❏ Linux including GNU C Library 2.7 or later. Tools: ❏ Java JDK5 or later version ❏ Android Studio Android IDEs ❏ Android Studio ❏ Eclipse IDE(Deprecated)
- 13. Before jumping into building an app let’s look at some things that are used in Android Studio ❏Android SDK:The Android SDK (software development kit) is a set of development tools used to develop applications for Android platform. The Android SDK includes the following: 1.ADB, “the Android Debug Bridge” 2.Required libraries 3.Debugger 4.An emulator 5.Relevant documentation for the Android application program interfaces (APIs) 6.Sample source code 7.Tutorials for the Android OS ❏Android NDK: The Android Native Development Kit is a toolset that lets you implement parts of your app in native code, using languages such as C and C++. ❏Android Runtime: An application runtime environment used by the Android operating system. ART performs the translation of the application's bytecode into native instructions that are later executed by the device's runtime environment.
- 14. Finally… building an app….. ❏ Write code in JAVA and XML ❏ Generate Java source files (e.g., from resource files, which are written XML used to generate Java code) ❏ Compile Java code into JVM bytecode ❏ “dex” the JVM bytecode into Dalvik bytecode ❏ Pack in assets and graphics into an APK ❏ Cryptographically sign the APK file to verify it ❏ Load it onto the device
- 15. Now a question may arise… “How can we dex and pack assets and sign the apk?” Well, simple answer for it is, “GRADLE” Now what is Gradle? ❏ An advanced automated build System. ❏ Android Studio uses Gradle, to automate and manage the build process, while allowing you to define flexible custom build configurations.
- 16. That’s all folks!! Got questions? Ask away!