DATABINDING

Data binding playground

Intro

Databinding library is a support library that allows you to bind your UI with your data sources using a declarative format rather than programmatically.

The magic that comes about from this is taking code from this

findViewById<TextView>(R.id.sample_text).apply {
     text = viewModel.userName
 }

TO

<TextView
     android:text="@{viewmodel.userName}" />```
right in your xml code

## To get Started
include the following declaration in your build.gradle file to enable databinding on your project

android { ... buildFeatures { dataBinding true } }

with data binding you can use expression in the xml files that resemble something like

android:text="@{String.valueOf(index + 1)}" android:visibility="@{age < 13 ? View.GONE : View.VISIBLE}" android:transitionName='@{"image_" + id}'

### Example 1 : Using Static Values

```

```
<TextView
                android:id="@+id/plain_name"
                android:text="@{name}"
        ... />
        ```

Reference

• DataBinding