在compose TextField中设置数字格式

import androidx.compose.foundation.text.KeyboardOptions
import androidx.compose.material.TextField
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.text.input.KeyboardType
import androidx.compose.ui.text.input.TextFieldValue
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.window.Window
import androidx.compose.ui.window.WindowSize
import androidx.compose.ui.window.application

fun main() = application {
    Window(
        size = WindowSize(300.dp, 200.dp),
        title = "Compose TextField Example"
    ) {
        val textState = remember { mutableStateOf(TextFieldValue()) }

        TextField(
            value = textState.value,
            onValueChange = { textState.value = it },
            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
            // 设置数字格式化器
            inputFormatters = listOf(FilteringTextInputFormatter.digitsOnly),
            label = { Text("Enter a number") }
        )
    }
}