SharedPreferences的一个工具类适合的数据类型包括String、Integer、Boolean、Float、Long

package com.jianong.xmtt.util;

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

/**
 * SharedPreferences的一个工具类,调用setParam就能保存String, Integer, Boolean, Float, Long类型的参数
 * 同样调用getParam就能获取到保存在手机里面的数据
 * Created by hgl on 2016/6/24.
 */
public class SharedPreferencesutils {

    private static final String FILE_NAME = "share_date";

    /**
     * 保存数据的方法,我们需要拿到保存数据的具体类型,然后根据类型调用不同的保存方法
     *
       SharedPreferencesUtils.setParam(this, "String", "xiaanming");
      SharedPreferencesUtils.setParam(this, "int", 10);
      SharedPreferencesUtils.setParam(this, "boolean", true);
      SharedPreferencesUtils.setParam(this, "long", 100L);
      SharedPreferencesUtils.setParam(this, "float", 1.1f);
     * @param context
     * @param key
     * @param object
     */
    public static void setParam(Context context, String key, Object object) {

        String type = object.getClass().getSimpleName();
        SharedPreferences sp = context.getSharedPreferences(FILE_NAME, Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sp.edit();

        if ("String".equals(type)) {
            editor.putString(key, (String) object);
        } else if ("Integer".equals(type)) {
            editor.putInt(key, (Integer) object);
        } else if ("Boolean".equals(type)) {
            editor.putBoolean(key, (Boolean) object);
        } else if ("Float".equals(type)) {
            editor.putFloat(key, (Float) object);
        } else if ("Long".equals(type)) {
            editor.putLong(key, (Long) object);
        }

        editor.commit();
    }


    /**
     * 得到保存数据的方法,我们根据默认值得到保存的数据的具体类型,然后调用相对于的方法获取值
     *    SharedPreferencesUtils.getParam(TimerActivity.this, "String", "");
      SharedPreferencesUtils.getParam(TimerActivity.this, "int", 0); SharedPreferencesUtils.getParam(TimerActivity.this, "boolean", false); SharedPreferencesUtils.getParam(TimerActivity.this, "long", 0L); SharedPreferencesUtils.getParam(TimerActivity.this, "float", 0.0f); *
@param context * @param key * @param defaultObject * @return */ public static Object getParam(Context context, String key, Object defaultObject) { String type = defaultObject.getClass().getSimpleName(); SharedPreferences sp = context.getSharedPreferences(FILE_NAME, Context.MODE_PRIVATE); if ("String".equals(type)) { return sp.getString(key, (String) defaultObject); } else if ("Integer".equals(type)) { return sp.getInt(key, (Integer) defaultObject); } else if ("Boolean".equals(type)) { return sp.getBoolean(key, (Boolean) defaultObject); } else if ("Float".equals(type)) { return sp.getFloat(key, (Float) defaultObject); } else if ("Long".equals(type)) { return sp.getLong(key, (Long) defaultObject); } return null; } }

 

posted @ 2016-06-27 17:19  遗失的流年  阅读(628)  评论(0编辑  收藏  举报