Declared XML styleable cannot be found from code

Question

I'm trying to add a custom attribute (@drawable) to my custom View and I want to retrieve it as resourceId. Somehow my View cannot find it if I want to access it through code:

TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.TouchImageView, defStyle, 0);
int base = a.getResourceId(R.styleable.imageDrawable, R.drawable.kaart);

The error I got is: Cannot be resolved or is not a field

My attrs.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="TouchImageView">
        <attr name="imageDrawable" format="string"/>
  </declare-styleable>
</resources>

The xml in the layout would be:

<nl.raakict.android.util.TouchImageView
     android:id="@+id/plattegrond"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     imageDrawable="@drawable/kaart"/>

you need to `import yourPKG.R;` in your `TouchImageView class` — M D, May 08 '14 at 08:46
Yes, I did this. It does recognize the R but just not the R.styleable.imageDrawable — Bart Burg, May 08 '14 at 08:48

score 0 · Answer 1 · answered May 08 '14 at 08:57

0

Ah it was pretty easy. Apparently the styleable had to be used as prefix to the attribute like so: TouchImageView_imageDrawable. So the new code would be:

int base = a.getResourceId(R.styleable.TouchImageView_imageDrawable, R.drawable.kaart);

answered May 08 '14 at 08:57

Bart Burg

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Declared XML styleable cannot be found from code

1 Answers1