CODEWITHSUNDEEP
androiddata-bindingandroid-databinding
Ravi
Ravi

Reputation: 35559

access integer array using DataBinding

I am trying to create RecyclerView with use of DataBinding for Integer data, i have already tried with String data by declaring string-array in string.xml, here is answer from where i have taken reference.

Now i am trying to implement it with integer-array but not able to access it from xml.

Here is my integer.xml

<integer-array name="hours">
    <item>1</item>
    <item>2</item>
    <item>3</item>
    <item>4</item>
    <item>5</item>
    <item>6</item>
    <item>7</item>
    <item>8</item>
    <item>9</item>
    <item>10</item>
    <item>11</item>
    <item>12</item>
</integer-array>

here is my xml file

<android.support.v7.widget.RecyclerView
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        app:entries="@{@integerArray/hours}">

and my custom binding adapter

@BindingAdapter("entries")
public static void entries(RecyclerView recyclerView, Integer[] array) {
    recyclerView.setAdapter(new SimpleArrayAdapter(array));
}

But it is showing me error line 1:0 token recognition error at: '@integerArray/'

Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> java.lang.RuntimeException: Found data binding errors.
****/ data binding error ****msg:Identifiers must have user defined types from the XML file. hours is missing

Upvotes: 5

Views: 2265

Answers (2)

Sam Chen
Sam Chen

Reputation: 8857

Thanks for the answer. Here I want to share the similar solution for binding image from integer-array Drawable resource.

My integer-array resource of Drawable:

<resources>
    <integer-array name="platform_images">
        <item>@drawable/android</item>
        <item>@drawable/iphone</item>
        <item>@drawable/windows</item>
    </integer-array>

</resources>

My BindingAdapter function:

object DataBindingUtil {
    @BindingAdapter("imageIndex", "images")
    @JvmStatic
    fun setImageResource(imageView: ImageView, imageIndex: Int, images: TypedArray) {
        imageView.setImageResource(images.getResourceId(imageIndex, 0))
    }
}

My ImageView:

<ImageView
    android:layout_width="40dp"
    android:layout_height="40dp"
    android:src="@drawable/android"
    app:imageIndex="@{2}"
    app:images="@{@typedArray/platform_images}" />

Upvotes: 0

Ravi
Ravi

Reputation: 35559

Found solution from document itself, i was doing silly mistake. It should be intArray instead of integerArray, and in BindingAdapter it should be int[]

app:entries="@{@intArray/hours}"

and adapter should be

@BindingAdapter("entries")
public static void entries(RecyclerView recyclerView, int[] array) {
    recyclerView.setAdapter(new SimpleArrayAdapter(array));
}

Upvotes: 6

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