```object Extensions{ fun TextUtils.checkEmpty(str: String?): String? { if (!TextUt...

# android

[Satyam G]

object Extensions{
    
    fun TextUtils.checkEmpty(str: String?): String? {
        if (!TextUtils.isEmpty(str)) {
            return str
        } else {
            return null
        }
    }
    
}

I have written this but not able to access this method. What is getting wrong here ??

[Maroš Šeleng]

You declared an extension function on TextUtils, therefore you need to call it on an instance of TextUtils, which cannot be instantiated, because it has private constructor.

[ephemient]

note, there is no need for `TextUtils`as Kotlin already gives you

str?.ifEmpty { null }