Kotlin Basics: Input, Save, and Display Data in Android Applications

For simplicity, let's use an EditText field to collect user input and a Button to trigger the save action.

XML Layout (activity_main.xml)

Kotlin Code (MainActivity.kt)

• Input Data: The EditText allows users to type their data.

• Save Data: When the "Save" button is clicked, the entered data is stored in SharedPreferences using the putString method.

• Display Data: The TextView displays the saved data, both after saving and when the app restarts (data is persistent).