Android kotlin textView name not detected in activity file?-CodePudding

I have created a textView in the android XML file and in kotlin while creating an activity, See the code below:

textViewName.setText("Hello")

Here the textViewName is showing error. But in Kotlin is it necessary to give the findViewById reference to the text view to work?

CodePudding user response：

The trick is to use Kotlin's extension (deprecated and discouraged but can still be used).

plugins {
    id 'com.android.application'
    id 'kotlin-android'

    //add this to your app gradle
    id 'kotlin-android-extensions'
}

You can now reference the textView directly on the Kotlin code without findViewById(). The other option is to go with Data and View Binding