语言选择

app/src/main/java/com/ckkj/water/utils/manager/LanguageManager.java

@@ -0,0 +1,187 @@
+package com.ckkj.water.utils.manager;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+
+import androidx.appcompat.app.AppCompatDelegate;
+import androidx.core.os.LocaleListCompat;
+
+import com.ckkj.water.AppConfig;
+import com.ckkj.water.ConstantUtil;
+import com.ckkj.water.MyApplication;
+import com.ckkj.water.R;
+import com.ckkj.water.login.LoginActivity;
+import com.ckkj.water.main.activity.MainActivity;
+import com.ckkj.water.utils.dataUtil.SharePreUtil;
+import com.ckkj.water.utils.show.ToastUtil;
+
+/**
+ * 语言切换管理工具类
+ * 使用 AppCompatDelegate.setApplicationLocales() API 实现中英切换
+ */
+public class LanguageManager {
+
+    private static final String TAG = "LanguageManager";
+
+    /**
+     * 语言类型枚举
+     */
+    public enum LanguageType {
+        CHINESE(0, "zh", "中文"),
+        ENGLISH(1, "en", "English");
+
+        public final int index;
+        public final String languageTag;
+        public final String displayName;
+
+        LanguageType(int index, String languageTag, String displayName) {
+            this.index = index;
+            this.languageTag = languageTag;
+            this.displayName = displayName;
+        }
+
+        public static LanguageType fromIndex(int index) {
+            for (LanguageType type : values()) {
+                if (type.index == index) {
+                    return type;
+                }
+            }
+            return CHINESE;
+        }
+
+        public static LanguageType fromLanguageTag(String languageTag) {
+            if ("en".equals(languageTag)) {
+                return ENGLISH;
+            }
+            return CHINESE;
+        }
+    }
+
+    /**
+     * 获取当前语言类型
+     */
+    public static LanguageType getCurrentLanguageType() {
+        LocaleListCompat locales = AppCompatDelegate.getApplicationLocales();
+        if (locales.isEmpty()) {
+            return LanguageType.CHINESE;
+        }
+        String language = locales.get(0).getLanguage();
+        return LanguageType.fromLanguageTag(language);
+    }
+
+    /**
+     * 获取当前语言索引 (0: 中文, 1: 英文)
+     */
+    public static int getCurrentLanguageIndex() {
+        return getCurrentLanguageType().index;
+    }
+
+    /**
+     * 切换语言
+     * @param languageType 要切换到的语言类型
+     */
+    public static void switchLanguage(LanguageType languageType) {
+        switchLanguage(languageType, null);
+    }
+
+    /**
+     * 切换语言并重启应用
+     * @param languageType 要切换到的语言类型
+     * @param activity 触发切换的Activity（用于重启）
+     */
+    public static void switchLanguage(LanguageType languageType, Activity activity) {
+        // 先保存语言设置
+        saveLanguage(languageType.languageTag);
+
+        // 设置应用语言
+        LocaleListCompat localeList = LocaleListCompat.forLanguageTags(languageType.languageTag);
+        AppCompatDelegate.setApplicationLocales(localeList);
+
+        // 如果传入了Activity，则重启应用
+        if (activity != null) {
+            ToastUtil.showShort(activity, activity.getString(R.string.language_switch_success));
+
+            // 延迟重启应用，确保语言设置生效
+            new android.os.Handler(android.os.Looper.getMainLooper()).postDelayed(() -> {
+                try {
+                    boolean isLogin = AppConfig.USER_LOGIN || SharePreUtil.getBoolean(
+                            ConstantUtil.SHARE_PRE_NAME,
+                            activity,
+                            ConstantUtil.USER_LOGIN
+                    );
+                    ActivityManager.removeAllActivity();
+                    Intent intent = new Intent(activity, isLogin ? MainActivity.class : LoginActivity.class);
+                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+                    activity.startActivity(intent);
+                    System.exit(0);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }, 500);
+        }
+    }
+
+    /**
+     * 切换语言（通过索引）
+     * @param position 0: 中文, 1: 英文
+     */
+    public static void switchLanguageByIndex(int position) {
+        switchLanguage(LanguageType.fromIndex(position), null);
+    }
+
+    /**
+     * 切换语言并重启应用（通过索引）
+     * @param position 0: 中文, 1: 英文
+     * @param activity 触发切换的Activity
+     */
+    public static void switchLanguageByIndex(int position, Activity activity) {
+        switchLanguage(LanguageType.fromIndex(position), activity);
+    }
+
+    /**
+     * 保存语言设置到本地
+     */
+    public static void saveLanguage(String languageTag) {
+        SharePreUtil.putString(ConstantUtil.SHARE_PRE_NAME,
+                MyApplication.getContext(),
+                ConstantUtil.KEY_APP_LANGUAGE,
+                languageTag);
+    }
+
+    /**
+     * 应用启动时恢复保存的语言设置
+     * 应该在 Application.onCreate() 中调用
+     */
+    public static void applyStoredLocale() {
+        String savedLocale = SharePreUtil.getString(
+                ConstantUtil.SHARE_PRE_NAME,
+                MyApplication.getContext(),
+                ConstantUtil.KEY_APP_LANGUAGE);
+
+        if (savedLocale != null && !savedLocale.isEmpty()) {
+            LocaleListCompat localeList = LocaleListCompat.forLanguageTags(savedLocale);
+            AppCompatDelegate.setApplicationLocales(localeList);
+        }
+    }
+
+    /**
+     * 获取语言选择列表的显示文本
+     */
+    public static String[] getLanguageDisplayNames(Context context) {
+        return new String[]{
+                context.getString(R.string.language_chinese),
+                context.getString(R.string.language_english)
+        };
+    }
+
+    /**
+     * 获取语言选择列表的图标资源ID
+     */
+    public static int[] getLanguageIcons() {
+        return new int[]{
+                R.mipmap.icon_langage_chinese,
+                R.mipmap.icon_langage_eng
+        };
+    }
+}