我在 android jetpack compose 中有一個文本欄位，所以我想限制數字，例如；用戶只能寫從 1 到 10 的數字，可以在 jetpack compose 中完成嗎？
@Preview(showBackground = true)
@Composable
fun OutlinedTextFieldComposable() {
var text by remember { mutableStateOf("") }
OutlinedTextField(
value = text,
onValueChange = { text = it },
label = { Text("Label") },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number))
}
uj5u.com熱心網友回復：
您可以onValueChange像這樣為內部設定條件：
@Preview(showBackground = true)
@Composable
fun OutlinedTextFieldComposable() {
var text by remember { mutableStateOf("") }
val maxNumbers = 10
OutlinedTextField(
value = text,
onValueChange = { if (it.toInt() <= maxNumbers) text = it },
label = { Text("Label") },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number))
}
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標籤：安卓 科特林 android-jetpack-compose