使用sharepreferce记录数组数据
1 /** 2 * 3 * sharepreference纪录news数据 4 * 5 * 6 */ 7 private static final String name="newsdata"; 8 9 10 //保存 11 public void setDataList(String tag,List<News> datalist) { 12 SharedPreferences sp=mactivity.getSharedPreferences(name,Context.MODE_PRIVATE); 13 if (null == datalist|| datalist.size() <= 0) 14 return; 15 16 Gson gson = new Gson(); 17 String strJson = gson.toJson(datalist); 18 sp.edit().putString(tag,strJson).commit(); 19 } 20 21 22 //获取 23 public List<News> getDataList(String tag) { 24 SharedPreferences sp=mactivity.getSharedPreferences(name,Context.MODE_PRIVATE); 25 String strJson = sp.getString(tag, null); 26 if (null == strJson) { 27 return null; 28 } 29 Gson gson = new Gson(); 30 List<News> datalist= gson.fromJson(strJson, 31 new TypeToken<List<News>>() { 32 }.getType()); 33 return datalist; 34 }
转载于:https://www.cnblogs.com/wangying222/p/5587786.html
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