如何更改 Android Jetpack Compose 中的 OutlineTextField 边框宽度？

Question

My code:

OutlinedTextField(
     value = state.value,
     onValueChange = { state.value = it },
     modifier = Modifier.fillMaxWidth().padding(start = 30.dp, end = 30.dp),
     label = { Text(text = "Something", fontSize = 14.sp) },
     shape = RoundedCornerShape(12.dp),
)

I want to increase the border width so that the colors focusedBorderColor , disabledBorderColor are supported.

Answer 1

You can change OutlinedTextField border like this

    var hasFocus by remember { mutableStateOf(false) }

    OutlinedTextField(
        modifier = modifier
            .border(
                width = 1.dp,
                color = if (hasFocus) Color.Red else Color.Unspecified
            )
            .onFocusChanged { focusState -> hasFocus = focusState.hasFocus },
        colors = TextFieldDefaults.outlinedTextFieldColors(
            focusedBorderColor = Color.Unspecified,
            unfocusedBorderColor = Color.Unspecified
        )
    )

Another solution is to use BaseTextField instead of OutlinedTextField

Answer 2

Outline border is defined as a constant value in OutlinedTextField .

private val IndicatorUnfocusedWidth = 1.dp
private val IndicatorFocusedWidth = 2.dp

There is no direct way to override these values.

So, you have to create complete custom TextField Composables if you need to achieve dynamic border width.

You can copy-paste the complete code in OutlinedTextField.kt and TextFieldImpl.kt and modify them as required to create the custom Composables.