Thousands separator formatting with Databinding

Question

I have a ViewModel that looks like this:

public class OrderViewModel {
    double price = 23748.89;
}

and a layout that I bind the OrderViewModel to:

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">

    <data>

        <variable
            name="order"
            type="com.example.viewmodel.OrderViewModel"/>

    </data>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:orientation="horizontal">


        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@{@string/price_format(order.price)}"/>

    </LinearLayout>

</layout>

The formatting string that is used looks like this:

<string name="price_format">%+.2f $</string>

which nicely adds the $ sign and reduces the float representation to 2 decimals.

Outcome looks like

1234.89

Now I want to replace the decimal point with a comma and add a thousands separator, making my price look like

1.234,89

Can I do this solely with my XML formatting string or do I have to do the formatting in the java code (my ViewModel)?

Answer 1

Try this format string:

%,.2f $

According to your own findings:

Depending on the Locale of the device (in this case, German ), the desired formatting should be automatically applied.

For German locale, this would be 1.234,89 $ whereas for UK, it would be 1,234.89 &