I am learning Compose and playing with it. My intention is to create custom textfield with hint animating above textfield itself, but I do not want to use label callback. Below is my composable used in column twice, however that gives me different bottom border line width. Why is that?
@Composable
fun TextfieldCustom() {
var text by remember { mutableStateOf(("")) }
var hint by remember { mutableStateOf(("")) }
var isClicked by remember { mutableStateOf((false)) }
Column(
verticalArrangement = Arrangement.Center,
horizontalAlignment = Alignment.CenterHorizontally
) {
Box(modifier = Modifier.height(20.dp).align(Alignment.Start)) {
this@Column.AnimatedVisibility(
visible = isClicked,
) {
Text(text = "Hint")
}
}
TextField(
value = hint,
onValueChange = {
text = it
hint = if (it.isNotEmpty()) {
text
} else {
it
}
},
colors = TextFieldDefaults.textFieldColors(
textColor = Color.Gray,
disabledTextColor = Color.Transparent,
backgroundColor = Color.Transparent,
focusedIndicatorColor = Color.Transparent,
unfocusedIndicatorColor = Color.Transparent,
disabledIndicatorColor = Color.Transparent
),
modifier = Modifier
.onFocusChanged {
isClicked = it.isFocused
}
.background(Color.White)
.drawBehind {
drawLine(
color = Color.Red,
start = Offset(0f, size.height),
end = Offset(size.width, size.height),
strokeWidth = 5.toDp().toPx()
)
},
placeholder = {
if (!isClicked) {
Text(text = "Hint")
} else {
Text(text = "")
}
},
)
}
}
Result ->
In Activity ->
ComposeWrappedUpTheme {
Column {
TextfieldCustom()
TextfieldCustom()
}
}
Edit: -> I discovered that adding fillMaxSize to Column inside setCotent block fixed the issue. I am not sure why.
