Set drawable resource ID in android:src for ImageView using data binding in Android

Question

I\'m trying to set drawable resource ID to android:src of ImageView using data binding

Here is my object:

public class Recipe implem         


        

Answer 1

Never override standard SDK attributes when you create your own @BindingAdapter!

This is not a good approach for many reasons like: it's gonna prevent obtaining benefits of new fixes on Android SDK update on that attribute. Also it might confuse developers and surely tricky for reusability (because it's un-exptected to be overrided )

you may use different namespace like:

custom:src="@{recipe.imageResource}"

or

mybind:src="@{recipe.imageResource}"

------ start Update 2.Jul.2018

Namespace is not recommended to be used, so better to rely on prefix or different name as:

app:custom_src="@{recipe.imageResource}"

or

app:customSrc="@{recipe.imageResource}"

------ end Update 2.Jul.2018

However, I would recommend different solution as:

android:src="@{ContextCompat.getDrawable(context, recipe.imageResource)}"

context view is always available inside binding expression @{ ... }