Get values from attribute

gistfile1.java

    private static int getDefaultColorFromAttribute(Context context, int attr) {
        TypedArray array = obtainStyledAttributeResource(context, attr);

        final int color;

        try {
            color = notNull(array.getColorStateList(0)).getDefaultColor();
        } finally {
            array.recycle();
        }

        return color;
    }

    private static TypedArray obtainStyledAttributeResource(Context context, int attr) {
        TypedValue typedValue = new TypedValue();
        context.getTheme().resolveAttribute(attr, typedValue, true);

        int[] attribute = new int[]{attr};
        return context.obtainStyledAttributes(typedValue.resourceId, attribute);
    }