Android Data Binding two way binding with array

问题

I want to achieve two-way binding on a array with Data Binding in Android.

This is a simplified version of the code I have:

<data>
    <variable
        name="values"
        type="Integer[]" />
</data>

<EditText
    ...
    android:text="@={Converter.toString(values[0])} />

But when I try to build this code I get a message as follows:

cannot find method setTo(java.lang.Integer[], int, java.lang.Integer) in class android.databinding.ViewDataBinding

How can I achieve two-way binding with an array, if at all possible?

回答1:

How about trying the following way by using ArrayList.

<data>
    <import type="java.util.ArrayList"/>
    <variable
        name="values"
        type="ArrayList&lt;Integer&gt;"/>
</data>

<EditText
    ...
    android:text="@={Converter.toString(values.get(0))} />

来源：https://stackoverflow.com/questions/47058632/android-data-binding-two-way-binding-with-array