@Override
    protected void attachBaseContext(Context newBase) {
        Locale newLocale;
        if (SPUtil.getBoolean(newBase,"isEN")) {
            //設置英文
            newLocale = Locale.ENGLISH;
        } else {
            //設置中文
            newLocale = Locale.SIMPLIFIED_CHINESE;
        }
        Context context = MyContextWrapper.wrap(newBase, newLocale);
        super.attachBaseContext(context);
    }

import android.content.Context;
import android.content.ContextWrapper;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.os.LocaleList;
 
import java.util.Locale;
 
public class MyContextWrapper  extends ContextWrapper {
 
    public MyContextWrapper(Context base) {
        super(base);
    }
 
    public static ContextWrapper wrap(Context context, Locale newLocale) {
 
        Resources res = context.getResources();
        Configuration configuration = res.getConfiguration();
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 
            configuration.setLocale(newLocale);
            LocaleList localeList = new LocaleList(newLocale);
            LocaleList.setDefault(localeList);
            configuration.setLocales(localeList);
            context = context.createConfigurationContext(configuration);
 
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
 
            configuration.setLocale(newLocale);
            context = context.createConfigurationContext(configuration);
 
        }
 
        return new ContextWrapper(context);
    }
}

import android.content.Context;
import android.content.SharedPreferences;
 
public class SPUtil {
 
    /**
     * 萬能的put方法     (能存儲String/int/boolean類型的值)
     * @param context
     * @param key
     * @param value
     */
    public static void put(Context context, String key, Object value) {
        SharedPreferences sp = context.getSharedPreferences("config", Context.MODE_PRIVATE);
        SharedPreferences.Editor edit = sp.edit();
        if (value instanceof String) {
            edit.putString(key, (String) value);
        } else if (value instanceof Integer) {
            //JDK1.7之后可以把引用數據類型轉為基本數據類型
            edit.putInt(key, (int) value);
        } else if (value instanceof Boolean) {
            edit.putBoolean(key, (boolean) value);
        }
        edit.apply();
    }
    /**
     * 獲取String
     * @param context
     * @param key
     * @return
     */
    public static String getString(Context context, String key) {
        SharedPreferences sp = context.getSharedPreferences("config", Context.MODE_PRIVATE);
        return sp.getString(key, "");
    }
    /**
     * 獲取int
     * @param context
     * @param key
     * @return
     */
    public static int getInt(Context context, String key) {
        SharedPreferences sp = context.getSharedPreferences("config", Context.MODE_PRIVATE);
        return sp.getInt(key, 0);
    }
 
    /**
     * 獲取Boolean
     * @param context
     * @param key
     * @return
     */
    public static boolean getBoolean(Context context, String key) {
        SharedPreferences sp = context.getSharedPreferences("config", Context.MODE_PRIVATE);
        return sp.getBoolean(key, false);
    }
 
    /**
     * 清空首選項
     *
     * */
    public static void clearData(Context context){
        SharedPreferences sp = context.getSharedPreferences("config", Context.MODE_PRIVATE);
        sp.edit().clear().apply();
    }
 
}

SPUtil.put(SettingActivity.this,"isEN",isChecked);
recreate();