Programming Tutorials

Android Kotlin: Changing GridView Selected Item Background Color This code demonstrates how to customize the background color of a GridView item in an Android application written in Kotlin. It allows the user to select an item from the grid, and upon selection, the chosen item's background color changes to indicate its selection. The code is divided into two main parts: the MainActivity.kt file handling the logic and the activity_main.xml file defining the layout. Breakdown and Functionality MainActivity.kt: Defines variables for plant names ( list ), background colors for regular and selected items ( itemBackgroundColor , selectedItemBackgroundColor ), and the grid view's background color. Creates an ArrayAdapter for the GridView, populating it with the plant list. In the getView method, it sets the text, gravity, and background color for each item in the grid. Attaches an setOnItemClickListener to the GridView. This listener gets triggered whenever a gr...