Programming Tutorials

Android Kotlin - Capitalizing First Letter in EditText This code demonstrates two ways to capitalize the first letter of user input in an EditText field within an Android application written in Kotlin. The code provides a MainActivity class and an associated layout file ( activity_main.xml ). The MainActivity class handles setting up the UI and defining functionality, while the layout file defines the visual structure of the activity. Breakdown of the Code MainActivity.kt: This class inherits from Activity and defines the lifecycle of the main screen. It has a private member variable editText2 of type EditText . In the onCreate method: Sets the layout using setContentView . Finds the EditText with the ID editText2 using findViewById . Calls the firstLetterCapital extension function on editText2 . firstLetterCapital Extension Function: This function is an extension function for the EditText class. It sets the inputType property of the EditText to a combination of TYPE_...