如何将DatePicker的文字颜色设置为白色？

Question

我正在使用 Stackoverflow 上的上一个问题，使用 jetpack compose 中视图库的 DatePicker 来实现轮日期选择器。 我在导航到下一页之前得到的结果。

在我导航到下一页并返回到出生日期页面后，这是我得到的结果

date_picker.xml

<DatePicker xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/datePicker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/black"
android:calendarTextColor="#FFFFFF"
android:calendarViewShown="false"
android:datePickerMode="spinner"
android:theme="@style/CustomDatePickerStyle" />

Android视图

@Composable
fun DatePicker(
    onDateSelected: (Date) -> Unit
) {

AndroidView(
    modifier = Modifier.fillMaxWidth(),
    factory = { context ->
        val view = LayoutInflater.from(context).inflate(R.layout.date_picker, null)
        val datePicker = view.findViewById<DatePicker>(R.id.datePicker)
        val calendar = Calendar.getInstance() // show today by default
        datePicker.init(
            calendar.get(Calendar.YEAR),
            calendar.get(Calendar.MONTH),
            calendar.get(Calendar.DAY_OF_MONTH)
        ) { _, year, monthOfYear, dayOfMonth ->
            val date = Calendar.getInstance().apply {
                set(year, monthOfYear, dayOfMonth)
            }.time
            onDateSelected(date)

        }
        datePicker
    }
)
}

我就是这样使用的

DatePicker { date ->
            validationViewModel.changeDateOfBirth(date)
}

这是validationViewModel

/** Date of Birth Validation */
var dateOfBirth by mutableStateOf(Date())
    private set

@OptIn(ExperimentalCoroutinesApi::class)
val dateOfBirthError = snapshotFlow { dateOfBirth }
    .mapLatest { validateAge.execute(dateOfBirth.toString().substring(30)) }
    .stateIn(
        scope = viewModelScope,
        started = SharingStarted.WhileSubscribed(5_000),
        initialValue = ValidationResult()
    )

fun changeDateOfBirth(value: Date) {
    dateOfBirth = value
}

主题.kt

private val colorScheme = lightColorScheme(
primary = green, // Your custom green color
onPrimary = Color.White, // Black text on green buttons
secondary = Color.White,
background = Color.Black,
onBackground = Color.White,
surface = Color.Black,
onSurface = Color.White
)

@Composable
fun SpotifyTheme(
content: @Composable () -> Unit
) {
   val colorScheme = colorScheme


MaterialTheme(
    colorScheme = colorScheme,
    typography = Typography,
    content = content
)
}

Answer 1

要在应用程序中仅添加深色主题，您只需将 lightColorScheme 更改为 darkColorScheme ，如下所示

private val DarkColorScheme = darkColorScheme(
primary = green, // Your custom green color
onPrimary = Color.White, // Black text on green buttons
secondary = Color.White,
background = Color.Black,
onBackground = Color.White,
surface = Color.Black,
onSurface = Color.White
)

最后您可以在 Material 主题中使用这个深色主题。

MaterialTheme(
    colorScheme = DarkColorScheme,
    typography = Typography,
    content = content
)