是否有可能在使用Android资源的同时以编程方式改变应用程序的语言?
如果不是,是否可以用特定的语言请求资源?
我想让用户改变应用程序的语言从应用程序。
是否有可能在使用Android资源的同时以编程方式改变应用程序的语言?
如果不是,是否可以用特定的语言请求资源?
我想让用户改变应用程序的语言从应用程序。
当前回答
只是多添了一块,把我绊倒了。
而其他的答案,比如“de”,都没问题
String lang = "de";
Locale locale = new Locale(lang);
Locale.setDefault(locale);
Configuration config = new Configuration();
config.locale = locale;
getBaseContext().getResources().updateConfiguration(config,
getBaseContext().getResources().getDisplayMetrics());
上面不会工作,例如“fr_BE”地区,所以它将使用values-fr-rBE文件夹或类似的。
需要以下轻微更改工作与“fr_BE”
String lang = "fr";
//create a string for country
String country = "BE";
//use constructor with country
Locale locale = new Locale(lang, country);
Locale.setDefault(locale);
Configuration config = new Configuration();
config.locale = locale;
getBaseContext().getResources().updateConfiguration(config,
getBaseContext().getResources().getDisplayMetrics());
其他回答
对我来说,最好的解决办法是: https://www.bitcaal.com/how-to-change-the-app-language-programmatically-in-android/
package me.mehadih.multiplelanguage;
import androidx.appcompat.app.AppCompatActivity;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.os.Bundle;
import android.util.DisplayMetrics;
import java.util.Locale;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setApplicationLocale("az"); // short name of language. "en" for English
setContentView(R.layout.activity_main);
}
private void setApplicationLocale(String locale) {
Resources resources = getResources();
DisplayMetrics dm = resources.getDisplayMetrics();
Configuration config = resources.getConfiguration();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
config.setLocale(new Locale(locale.toLowerCase()));
} else {
config.locale = new Locale(locale.toLowerCase());
}
resources.updateConfiguration(config, dm);
}
}
唯一完全适合我的解决方案是结合Alex Volovoy的代码和应用程序重启机制:
void restartApplication() {
Intent i = new Intent(MainTabActivity.context, MagicAppRestart.class);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
MainTabActivity.context.startActivity(i);
}
/** This activity shows nothing; instead, it restarts the android process */
public class MagicAppRestart extends Activity {
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
finish();
}
protected void onResume() {
super.onResume();
startActivityForResult(new Intent(this, MainTabActivity.class), 0);
}
}
如果你想在你的应用中保持语言变化,你必须做两件事。
首先,创建一个base Activity,让你所有的Activity都从下面扩展:
public class BaseActivity extends AppCompatActivity {
private Locale mCurrentLocale;
@Override
protected void onStart() {
super.onStart();
mCurrentLocale = getResources().getConfiguration().locale;
}
@Override
protected void onRestart() {
super.onRestart();
Locale locale = getLocale(this);
if (!locale.equals(mCurrentLocale)) {
mCurrentLocale = locale;
recreate();
}
}
public static Locale getLocale(Context context){
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
String lang = sharedPreferences.getString("language", "en");
switch (lang) {
case "English":
lang = "en";
break;
case "Spanish":
lang = "es";
break;
}
return new Locale(lang);
}
}
注意,我将新语言保存在sharedPreference中。
其次,像这样创建一个应用程序的扩展:
public class App extends Application {
@Override
public void onCreate() {
super.onCreate();
setLocale();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
setLocale();
}
private void setLocale() {
final Resources resources = getResources();
final Configuration configuration = resources.getConfiguration();
final Locale locale = getLocale(this);
if (!configuration.locale.equals(locale)) {
configuration.setLocale(locale);
resources.updateConfiguration(configuration, null);
}
}
}
注意,getLocale()与上面相同。
这是所有! 我希望这能帮助到一些人。
这个功能是由谷歌为Android 13正式推出的(也有向后支持)。Android现在允许你为每个应用程序选择语言。
官方文件在这里- https://developer.android.com/guide/topics/resources/app-languages
要设置用户的首选语言,你会要求用户在语言选择器中选择一个地区,然后在系统中设置该值:
// 1. Inside an activity, in-app language picker gets an input locale "xx-YY"
// 2. App calls the API to set its locale
mContext.getSystemService(LocaleManager.class
).setApplicationLocales(newLocaleList(Locale.forLanguageTag("xx-YY")));
// 3. The system updates the locale and restarts the app, including any configuration updates
// 4. The app is now displayed in "xx-YY" language
要在语言选择器中显示用户当前的首选语言,你的应用程序可以从系统中获取返回的值:
// 1. App calls the API to get the preferred locale
LocaleList currentAppLocales =
mContext.getSystemService(LocaleManager.class).getApplicationLocales();
// 2. App uses the returned LocaleList to display languages to the user
下面是一些适合我的代码:
public class MainActivity extends AppCompatActivity {
public static String storeLang;
@Override
protected void onCreate(Bundle savedInstanceState) {
SharedPreferences shp = PreferenceManager.getDefaultSharedPreferences(this);
storeLang = shp.getString(getString(R.string.key_lang), "");
// Create a new Locale object
Locale locale = new Locale(storeLang);
// Create a new configuration object
Configuration config = new Configuration();
// Set the locale of the new configuration
config.locale = locale;
// Update the configuration of the Accplication context
getResources().updateConfiguration(
config,
getResources().getDisplayMetrics()
);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
来源:这里