Intro in Kotlin

Kotlin is a statically typed programming language for Jetbrains, inspired by Java, Scala, C#, Groovy and its targets are JVM and Javascript.

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Intro in Kotlin

Android Transparent Colors

Usually when you create the design for an Android app we must add some transparency to different UI elements according to the requirements.

In order to have a transparent background, but not fully transparent, you should compute the hex number assigned to the desired percent of transparency in the alpha channel.

Android Transparent Colors (1)

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Android Transparent Colors

Android Data Binding

Have you felt that you need “something” to bind the data directly to the layout without writing some extra code!? “findViewById” method is scaring you!? The solution for these issues it’s called “Android Data Binding”.

This library offers both flexibility and broad compatibility so you could use it starting with Android 2.1 (API level 7+) and it was presented at Google I/O 2015.

It can be used with gradle 1.5.0-alpha1 or higher.

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Android Data Binding

Android and Firebase

Firebase offers you the tools and infrastructure you need to build better apps and grow successful businesses. Firebase stores and syncs the data (json format) in real time so on your android app you will have the latest data without doing a new request.

This platform assures also the persistence of the data so even the app is offline you will have the data on your device.

Firebase has a lot of new features and these features are able to work independently, and they work even better together.

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Android and Firebase