如何在Jetpack Compose中更改语言区域设置
如何在Jetpack Compose中更改语言区域设置
提问于 2021-11-07 16:16:21
我想在Jetpack Compose中以编程方式改变语言。我已经看了相当多的帖子和视频，但还是找不到方法。(帖子和视频在Android视图系统中。)
How to change language in kotlin (locale)
https://www.youtube.com/watch?v=xxPzi2h0Vvc
我希望我的应用程序如下图所示。单击语言后，整个应用程序将更改语言。下面的代码是clickable的部分。在这个可点击的部分和MainActivity.kt中我应该做什么？
@Composable
fun LanguageScreen(
navController: NavController,
) {
val context = LocalContext.current
val langList = arrayOf("English", "繁體中文", "简体中文", "日本語")
var items by remember {
mutableStateOf(
langList.map {
LanguageItem(
title = it,
isSelected = false
)
}
)
}
LazyColumn(
modifier = Modifier
.fillMaxSize()
) {
items(items.size) { i ->
Row(
modifier = Modifier
.fillMaxWidth()
.clickable {
items = items.mapIndexed { j, item ->
if (i == j) {
item.copy(isSelected = true)
} else item.copy(isSelected = false)
}
if (i == 0) {
setLocaleLang("", context)
} else if (i == 1) {
setLocaleLang("zh-rTW", context)
} else if (i == 2) {
setLocaleLang("zh-rCN", context)
} else {
setLocaleLang("ja", context)
}
}
.padding(16.dp),
horizontalArrangement = Arrangement.SpaceBetween,
verticalAlignment = Alignment.CenterVertically
) {
Text(text = items[i].title, fontSize = 20.sp)
if (items[i].isSelected) {
Icon(
imageVector = Icons.Default.Check,
contentDescription = "Selected",
tint = Color.Blue,
modifier = Modifier.size(24.dp)
)
}
}
Spacer(
modifier = Modifier
.fillMaxWidth()
.height(1.dp)
.background(Color.LightGray)
)
}
}
}
fun setLocaleLang(lang: String, context: Context) {
val locale = Locale(lang)
Locale.setDefault(locale)
val resources = context.resources
val configuration = resources.configuration
configuration.setLocale(locale)
resources.updateConfiguration(configuration, resources.displayMetrics)
val editor = context.getSharedPreferences("Settings", Context.MODE_PRIVATE).edit()
editor.putString("My_Lang", lang)
editor.apply()
}
fun loadLocale(context: Context) {
val sharedPreferences = context.getSharedPreferences("Settings", Activity.MODE_PRIVATE)
val language = sharedPreferences.getString("My_Lang", "")
setLocaleLang(language!!, context)
}MainActivity.kt
class MainActivity : ComponentActivity() {
@ExperimentalFoundationApi
override fun onCreate(savedInstanceState: Bundle?) {
loadLocale(this)
super.onCreate(savedInstanceState)
setContent {
SpanishTravelTheme {
回答 2
Stack Overflow用户
发布于 2021-11-07 16:55:27
尝尝这个
val context = LocalContext.current
Row(
modifier = Modifier
.fillMaxWidth()
.clickable {
val locale = Locale(language) //Here I assume you have access to the language you want
Locale.setDefault(locale)
val resources = context.getResources()
val configuration = resources.getConfiguration()
configuration.locale = locale
resources.updateConfiguration(configuration, resources.getDisplayMetrics())
}
.padding(16.dp),
horizontalArrangement = Arrangement.SpaceBetween,
verticalAlignment = Alignment.CenterVertically
)Stack Overflow用户
发布于 2022-02-12 21:02:40
你可以试试这个
- 创建辅助对象
LocaleUtils.kt
object LocaleUtils {
// [AppPrefs] is sharedpreferences or datastore
fun setLocale(c: Context, pref: AppPrefs) = updateResources(c, pref.language ?: "en") //use locale codes
private fun updateResources(context: Context, language: String) {
context.resources.apply {
val locale = Locale(language)
val config = Configuration(configuration)
context.createConfigurationContext(configuration)
Locale.setDefault(locale)
config.setLocale(locale)
context.resources.updateConfiguration(config, displayMetrics)
}
}
}- 在运行时调用
setContent内部的setLocale以更改语言。
setContent {
LocaleUtils.setLocale(LocalContext.current, viewModel.pref)- 将更改应用程序语言
fun changeAppLanguage(languageISO: String) {
sharedPrefs.edit().putString(LANGUAGE_KEY, languageISO).apply()
}请记住使用语言ISO 639-1 Code
以下是区域设置代码https://developers.google.com/interactive-media-ads/docs/sdks/android/client-side/localization的列表
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/69874263
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