SharePreference 单例封装 用法

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

/**
 * SharePreference封装
 *
 */
public class PrefUtils {

   public static final String PREF_NAME = "config";

   public static boolean getBoolean(Context ctx, String key,
                                     boolean defaultValue) {
      SharedPreferences sp = ctx.getSharedPreferences(PREF_NAME,
            Context.MODE_PRIVATE);
      return sp.getBoolean(key, defaultValue);
   }

   public static void setBoolean(Context ctx, String key, boolean value) {
      SharedPreferences sp = ctx.getSharedPreferences(PREF_NAME,
            Context.MODE_PRIVATE);
      sp.edit().putBoolean(key, value).commit();
   }

   public static String getString(Context ctx, String key, String defaultValue) {
      SharedPreferences sp = ctx.getSharedPreferences(PREF_NAME,
            Context.MODE_PRIVATE);
      return sp.getString(key, defaultValue);
   }

   public static void setString(Context ctx, String key, String value) {
         SharedPreferences sf = ctx.getSharedPreferences(PREF_NAME,
               Context.MODE_PRIVATE);
         sf.edit().putString(key, value).commit();
   }

   public static int getInt(Context ctx, String key, int defaultValue) {
      SharedPreferences sp = ctx.getSharedPreferences(PREF_NAME,
            Context.MODE_PRIVATE);
      return sp.getInt(key, defaultValue);
   }

   public static void setInt(Context ctx, String key, int value) {
      SharedPreferences sf = ctx.getSharedPreferences(PREF_NAME,
            Context.MODE_PRIVATE);
      sf.edit().putInt(key, value).commit();
   }
}
用法：1 set数据

        PrefUtils.setString(LoginActivity.this, GlobalContents.CUSTOMER_ID,
        "xxmmmm");

          2 get数据 

      String jwt = PrefUtils.getString(context,LOGIN_INFO,"");

本文地址：https://blog.csdn.net/u014388516/article/details/110630034