App crashes when typing text into TextField

Are you facing app crashes when users type text into a TextField? This issue can be caused by improperly initializing the array holding the text input data in your ViewModel. Let's dive into the solution and provide a step-by-step guide to resolve this issue.

1. Confirm Array Initialization:

   Ensure that the array holding the text input data (often named playerNames) is properly initialized in your ViewModel.

2. Utilize mutableStateOf for Array Elements:

   Each element of the array should be declared using mutableStateOf. This allows Jetpack Compose to observe changes made to each element.

3. Update Code:

   Modify your code to properly initialize the array and use mutableStateOf for each element. Here's an example:

   Column(
       modifier = Modifier.fillMaxSize(),
       verticalArrangement = Arrangement.Center,
       horizontalAlignment = Alignment.CenterHorizontally
   ) {
       Text("Red")
       TextField(
           value = viewModel.playerNames[0].value,
           onValueChange = {
               viewModel.playerNames[0].value = it
           },
           modifier = Modifier.padding(8.dp)
       )
       Text("Blue")
       TextField(
           value = viewModel.playerNames[1].value,
           onValueChange = {
               viewModel.playerNames[1].value = it
           },
           modifier = Modifier.padding(8.dp)
       )
   }
   

   In your ViewModel, define the array as follows:

   class MyViewModel : ViewModel() {
       // Initialize array with two elements and mutableStateOf
       val playerNames = List(2) { mutableStateOf("") }
   }
   

By following these steps, you should be able to resolve the app crashes caused by improper array initialization in your ViewModel.