Convert String obtained from edittext to Integer in Kotlin language

You can use .toInt():

val myNumber: Int = "25".toInt()

Note that it throws a NumberFormatException if the content of the String is not a valid integer.

If you don't like this behavior, you can use .toIntOrNull() instead (since Kotlin 1.1):

val myNumOrNull: Int? = "25".toIntOrNull()

The above is the general idea but here is a syntax straight out of Android Studio, from a different tutorial I'm doing.

Note that the compiler was perfectly happy to do a cast of a cast.

var myNewInt: Int = myEditTextView.text.toString().toInt()

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