App多语言设置

原创已于 2023-02-20 14:22:23 修改 · 739 阅读

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于 2023-02-20 11:00:45 首次发布

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AndroidManifest.xml

引用OSportApplciation

  <application
        android:name=".OSportApplciation"
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.MyApplication"
        tools:targetApi="31">

OSportApplciation.kt

package com.oplayer.myapplication

import android.app.Application
import android.content.Context
import com.oplayer.language.MultiLanguages

class OSportApplciation : Application() {
    override fun onCreate() {
        super.onCreate()
        //初始化多语言工具
        MultiLanguages.init(this)
    }

    override fun attachBaseContext(base: Context?) {
    	// 国际化适配（绑定语种）
        super.attachBaseContext(MultiLanguages.attach(base))
    }
}

MainActivity.kt

设置语言

package com.oplayer.myapplication

import android.os.Bundle
import android.util.Log
import com.oplayer.BaseActivity
import com.oplayer.language.MultiLanguages
import java.util.*

class MainActivity : BaseActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

    }

    override fun initView() {
		//设置语言
        MultiLanguages.setAppLanguage(this, Locale("de","DE"))//de_DE en,US
        Log.d("","当前app语言 ${ MultiLanguages.getAppLanguage()} ")
    }

    override fun initInfo() {

    }

    override fun initData() {

    }
}

BaseActivity.kt

package com.oplayer

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity

abstract class BaseActivity : AppCompatActivity(){
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        initView()
        initInfo()
        initData()
    }
    abstract fun initView()
    abstract fun initInfo()
    abstract fun initData()
}

多语言工具类

ActivityLanguages.java

package com.oplayer.language;

import android.app.Activity;
import android.app.Application;
import android.os.Bundle;

/**
 *    author : Android 轮子哥
 *    github : https://github.com/getActivity/MultiLanguages
 *    time   : 2021/01/21
 *    desc   : Activity 语种绑定
 */
final class ActivityLanguages implements Application.ActivityLifecycleCallbacks {

    static void inject(Application application) {
        application.registerActivityLifecycleCallbacks(new ActivityLanguages());
    }

    @Override
    public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
        MultiLanguages.updateAppLanguage(activity);
    }

    @Override
    public void onActivityStarted(Activity activity) {}

    @Override
    public void onActivityResumed(Activity activity) {
        MultiLanguages.updateAppLanguage(activity);
    }

    @Override
    public void onActivityPaused(Activity activity) {}

    @Override
    public void onActivityStopped(Activity activity) {}

    @Override
    public void onActivityDestroyed(Activity activity) {}

    @Override
    public void onActivitySaveInstanceState(Activity activity, Bundle outState) {}
}

LanguagesConfig.java

package com.oplayer.language;

import android.content.Context;
import android.content.SharedPreferences;

import java.util.Locale;

/**
 *    author : Android 轮子哥
 *    github : https://github.com/getActivity/MultiLanguages
 *    time   : 2019/05/03
 *    desc   : 配置保存类
 */
final class LanguagesConfig {

    private static final String KEY_LANGUAGE = "key_language";
    private static final String KEY_COUNTRY = "key_country";
    private static final String KEY_LANGUAGE_TYPE = "key_language_type";

    private static String sSharedPreferencesName = "language_setting";
    private static Locale sCurrentLanguage;

    static void setSharedPreferencesName(String name) {
        sSharedPreferencesName = name;
    }

    private static SharedPreferences getSharedPreferences(Context context) {
        return context.getSharedPreferences(sSharedPreferencesName, Context.MODE_PRIVATE);
    }

    static void setAppLanguage(Context context, Locale locale) {
        sCurrentLanguage = locale;
        getSharedPreferences(context).edit()
                .putString(KEY_LANGUAGE, locale.getLanguage())
                .putString(KEY_COUNTRY, locale.getCountry())
                .apply();
    }

    static Locale getAppLanguage(Context context) {
        if (sCurrentLanguage == null) {
            String language = getSharedPreferences(context).getString(KEY_LANGUAGE, null);
            String country = getSharedPreferences(context).getString(KEY_COUNTRY, null);
            if (language != null && !"".equals(language)) {
                sCurrentLanguage = new Locale(language, country);
            } else {
                sCurrentLanguage = Locale.getDefault();
            }
        }
        return sCurrentLanguage;
    }

    static void clearLanguage(Context context) {
        sCurrentLanguage = MultiLanguages.getSystemLanguage();
        getSharedPreferences(context).edit().remove(KEY_LANGUAGE).remove(KEY_COUNTRY).apply();
    }

    static void setLanguageType(Context context, boolean isSystemLanguage) {
        getSharedPreferences(context).edit()
                .putBoolean(KEY_LANGUAGE_TYPE, isSystemLanguage)
                .apply();
    }

    static boolean getLanguageType(Context context) {
        return getSharedPreferences(context).getBoolean(KEY_LANGUAGE_TYPE, true);
    }
}

LanguagesObserver.java

package com.oplayer.language;

import android.content.ComponentCallbacks;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;

import java.util.Locale;

/**
 *    author : Android 轮子哥
 *    github : https://github.com/getActivity/MultiLanguages
 *    time   : 2019/05/06
 *    desc   : 语种变化监听
 */
final class LanguagesObserver implements ComponentCallbacks {

    /** 系统语种 */
    private static volatile Locale sSystemLanguage;

    static {
        // 获取当前系统的语种
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            sSystemLanguage = Resources.getSystem().getConfiguration().getLocales().get(0);
        } else  {
            sSystemLanguage = Resources.getSystem().getConfiguration().locale;
        }
    }

    /**
     * 获取系统的语种
     */
    static Locale getSystemLanguage() {
        return sSystemLanguage;
    }

    /**
     * 注册系统语种变化监听
     */
    static void register(Context context) {
        context.registerComponentCallbacks(new LanguagesObserver());
    }

    /**
     * 手机的语种发生了变化
     */
    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        Locale newLocale =LanguagesTools.getLocale(newConfig);

        Locale oldLocale = sSystemLanguage;
        if (newLocale.equals(oldLocale)) {
            return;
        }
        sSystemLanguage = newLocale;
        OnLanguageListener listener = MultiLanguages.getOnLanguagesListener();
        if (listener != null) {
            listener.onSystemLocaleChange(oldLocale, newLocale);
        }
    }

    @Override
    public void onLowMemory() {}
}

LanguagesTools.java

package com.oplayer.language;

import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.os.LocaleList;

import java.util.Locale;

/**
 *    author : Android 轮子哥
 *    github : https://github.com/getActivity/MultiLanguages
 *    time   : 2019/05/03
 *    desc   : 国际化工具类
 */
@SuppressWarnings("deprecation")
final class LanguagesTools {

    /**
     * 获取当前语种对象
     */
    static Locale getLocale(Context context) {
        return getLocale(context.getResources().getConfiguration());
    }

    static Locale getLocale(Configuration config) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            return config.getLocales().get(0);
        } else  {
            return config.locale;
        }
    }

    /**
     * 绑定当前 App 的语种
     */
    static Context attachLanguages(Context context, Locale locale) {
        Resources resources = context.getResources();
        Configuration config = new Configuration(resources.getConfiguration());

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                LocaleList localeList = new LocaleList(locale);
                LocaleList.setDefault(localeList);
                config.setLocales(localeList);
            } else {
                config.setLocale(locale);
            }
            context = context.createConfigurationContext(config);
        } else {
            config.locale = locale;
        }
        resources.updateConfiguration(config, resources.getDisplayMetrics());
        Locale.setDefault(locale);
        return context;
    }

    /**
     * 更新 Resources 语种
     */
    static void updateLanguages(Resources resources, Locale locale) {
        Configuration config = resources.getConfiguration();

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                LocaleList localeList = new LocaleList(locale);
                LocaleList.setDefault(localeList);
                config.setLocales(localeList);
            } else {
                config.setLocale(locale);
            }
        } else {
            config.locale = locale;
        }
        resources.updateConfiguration(config, resources.getDisplayMetrics());
        Locale.setDefault(locale);
    }

    /**
     * 获取某个语种下的 Resources 对象
     */
    static Resources getLanguageResources(Context context, Locale locale) {
        Configuration config = new Configuration();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                LocaleList localeList = new LocaleList(locale);
                LocaleList.setDefault(localeList);
                config.setLocales(localeList);
            } else {
                config.setLocale(locale);
            }
            return context.createConfigurationContext(config).getResources();
        }

        config.locale = locale;
        return new Resources(context.getAssets(), context.getResources().getDisplayMetrics(), config);
    }
}

MultiLanguages.java

package com.oplayer.language;

import android.app.Application;
import android.content.Context;
import android.content.res.Resources;

import java.util.Locale;

/**
 *    author : Android 轮子哥
 *    github : https://github.com/getActivity/MultiLanguages
 *    time   : 2019/05/03
 *    desc   : 多语种适配
 */
public final class MultiLanguages {

    /** Application 对象 */
    private static Application sApplication;

    /** 语种变化监听对象 */
    private static OnLanguageListener sLanguageListener;

    /**
     * 初始化多语种框架
     */
    public static void init(Application application) {
        init(application, true);
    }

    public static void init(Application application, boolean inject) {
        sApplication = application;
        LanguagesObserver.register(application);
        if (inject) {
            ActivityLanguages.inject(application);
        }
    }

    /**
     * 在上下文的子类中重写 attachBaseContext 方法（用于更新 Context 的语种）
     */
    public static Context attach(Context context) {
        if (!LanguagesTools.getLocale(context).equals(LanguagesConfig.getAppLanguage(context))) {
            return LanguagesTools.attachLanguages(context, LanguagesConfig.getAppLanguage(context));
        }
        return context;
    }

    /**
     * 更新 Context 的语种
     */
    public static void updateAppLanguage(Context context) {
        updateAppLanguage(context.getResources());
    }

    /**
     * 更新 Resources 的语种
     */
    public static void updateAppLanguage(Resources resources) {
        if (!LanguagesTools.getLocale(resources.getConfiguration()).equals(LanguagesConfig.getAppLanguage(sApplication))) {
            LanguagesTools.updateLanguages(resources, LanguagesConfig.getAppLanguage(sApplication));
        }
    }

    /**
     * 获取 App 的语种
     */
    public static Locale getAppLanguage() {
        return LanguagesConfig.getAppLanguage(sApplication);
    }

    /**
     * 获取 App 的语种
     */
    public static Locale getLanguage() {
//        return LanguagesConfig.getAppLanguage(sApplication);
        if (LanguagesConfig.getLanguageType(sApplication)){
            return getSystemLanguage();
        } else {
            return LanguagesConfig.getAppLanguage(sApplication);
        }
    }

    /**
     * 设置 App 的语种
     */
    public static boolean setAppLanguage(Context context, Locale newLocale) {
        if (LanguagesTools.getLocale(context).equals(newLocale)) {
            // 不需要重启
            return false;
        }

        Locale oldLocale = LanguagesTools.getLocale(context);
        // 更新 Activity 的语种
        LanguagesTools.updateLanguages(context.getResources(), newLocale);
        if (context != sApplication) {
            // 更新 Application 的语种
            LanguagesTools.updateLanguages(sApplication.getResources(), newLocale);
        }
        LanguagesConfig.setAppLanguage(context, newLocale);
        LanguagesConfig.setLanguageType(context, false);
        if (sLanguageListener != null) {
            sLanguageListener.onAppLocaleChange(oldLocale, newLocale);
        }
        // 需要重启
        return true;
    }

    /**
     * 获取系统的语种
     */
    public static Locale getSystemLanguage() {
        return LanguagesObserver.getSystemLanguage();
    }

    /**
     * 将 App 语种设置为系统语种
     */
    public static boolean setSystemLanguage(Context context) {
        LanguagesConfig.clearLanguage(context);
        LanguagesConfig.setLanguageType(context, true);
        if (!LanguagesTools.getLocale(context).equals(getSystemLanguage())) {
            LanguagesTools.updateLanguages(context.getResources(), getSystemLanguage());
            if (context != sApplication) {
                // 更新 Application 的语种
                LanguagesTools.updateLanguages(sApplication.getResources(), getSystemLanguage());
            }
            // 需要重启
            return true;
        }
        // 不需要重启
        return false;
    }

    /**
     * 对比两个语言是否是同一个语种（比如：中文的简体和繁体，英语的美式和英式）
     */
    public static boolean equalsLanguage(Locale locale1, Locale locale2) {
        return locale1.getLanguage().equals(locale2.getLanguage());
    }

    /**
     * 对比两个语言是否是同一个地方的（比如：中国大陆用的中文简体，中国台湾用的中文繁体）
     */
    public static boolean equalsCountry(Locale locale1, Locale locale2) {
        return equalsLanguage(locale1, locale2) && locale1.getCountry().equals(locale2.getCountry());
    }

    /**
     * 获取某个语种下的 String
     */
    public static String getLanguageString(Context context, Locale locale, int id) {
        return getLanguageResources(context, locale).getString(id);
    }

    /**
     * 获取某个语种下的 Resources 对象
     */
    public static Resources getLanguageResources(Context context, Locale locale) {
        return LanguagesTools.getLanguageResources(context, locale);
    }

    /**
     * 设置语种变化监听器
     */
    public static void setOnLanguageListener(OnLanguageListener listener) {
        sLanguageListener = listener;
    }

    static OnLanguageListener getOnLanguagesListener() {
        return sLanguageListener;
    }

    /**
     * 设置保存的 SharedPreferences 文件名
     */
    public static void setSharedPreferencesName(String name) {
        LanguagesConfig.setSharedPreferencesName(name);
    }
}

OnLanguageListener.java

package com.oplayer.language;

import java.util.Locale;

/**
 *    author : Android 轮子哥
 *    github : https://github.com/getActivity/MultiLanguages
 *    time   : 2021/01/18
 *    desc   : 语种变化监听器
 */
public interface OnLanguageListener {

    /**
     * 当前应用语种发生变化时回调
     *
     * @param oldLocale         旧语种
     * @param newLocale         新语种
     */
    void onAppLocaleChange(Locale oldLocale, Locale newLocale);

    /**
     * 手机系统语种发生变化时回调
     *
     * @param oldLocale         旧语种
     * @param newLocale         新语种
     */
    void onSystemLocaleChange(Locale oldLocale, Locale newLocale);
}