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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| // | ||
| // Created with Android Studio. | ||
| // User: 三帆 | ||
| // Date: 18/02/2019 | ||
| // Time: 14:19 | ||
| // email: [email protected] | ||
| // tartget: xxx | ||
| // | ||
|
|
||
| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_go/utils/shared_preferences.dart'; | ||
| import 'dart:convert'; | ||
|
|
||
| class SearchHistory { | ||
| final String name; | ||
| final String targetRouter; | ||
|
|
||
| SearchHistory({@required this.name, @required this.targetRouter}); | ||
| } | ||
|
|
||
| class SearchHistoryList { | ||
| static SpUtil _sp; | ||
| static SearchHistoryList _instance; | ||
| static List<SearchHistory> _searchHistoryList = []; | ||
|
|
||
| static SearchHistoryList _getInstance(SpUtil sp) { | ||
| // print("SearchHistoryList _getInstance ${_searchHistoryList} ${_instance==null}"); | ||
| if (_instance == null) { | ||
| _sp = sp; | ||
| String json = sp.get(SharedPreferencesKeys.searchHistory); | ||
| _instance = new SearchHistoryList.fromJSON(json); | ||
| } | ||
| return _instance; | ||
| } | ||
|
|
||
| factory SearchHistoryList([SpUtil sp]) { | ||
| if (sp == null && _instance == null) { | ||
| print(new ArgumentError( | ||
| ['SearchHistoryList need instantiatied SpUtil at first timte '])); | ||
| } | ||
| return _getInstance(sp); | ||
| } | ||
|
|
||
| // List<SearchHistory> _searchHistoryList = []; | ||
|
|
||
| // 存放的最大数量 | ||
| int _count = 10; | ||
|
|
||
| SearchHistoryList.fromJSON(String jsonData) { | ||
| _searchHistoryList = []; | ||
| if (jsonData == null) { | ||
|
|
||
| return; | ||
| } | ||
| List jsonList = json.decode(jsonData); | ||
| jsonList.forEach((value) { | ||
| _searchHistoryList.add(SearchHistory( | ||
| name: value['name'], targetRouter: value['targetRouter'])); | ||
| }); | ||
| } | ||
|
|
||
| List<SearchHistory> getList() { | ||
| return _searchHistoryList; | ||
| } | ||
|
|
||
| clear() { | ||
| _sp.remove(SharedPreferencesKeys.searchHistory); | ||
| _searchHistoryList = []; | ||
| } | ||
|
|
||
| save() { | ||
| _sp.putString(SharedPreferencesKeys.searchHistory, this.toJson()); | ||
| } | ||
|
|
||
| add(SearchHistory item) { | ||
| print("_searchHistoryList> ${_searchHistoryList.length}"); | ||
| for (SearchHistory value in _searchHistoryList) { | ||
| if (value.name == item.name) { | ||
| return ; | ||
| } | ||
| } | ||
| if (_searchHistoryList.length > _count) { | ||
| _searchHistoryList.removeAt(0); | ||
| } | ||
| _searchHistoryList.add(item); | ||
| save(); | ||
| } | ||
|
|
||
| toJson() { | ||
| List<Map<String, String>> jsonList = []; | ||
| _searchHistoryList.forEach((SearchHistory value) { | ||
| jsonList.add({'name': value.name, 'targetRouter': value.targetRouter}); | ||
| }); | ||
| return json.encode(jsonList); | ||
| } | ||
|
|
||
| @override | ||
| String toString() { | ||
| // TODO: implement toString | ||
| return this.toJson(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,9 +1,12 @@ | ||
| /// Created with Android Studio. | ||
| /// User: 三帆 | ||
| /// Date: 31/01/2019 | ||
| /// Time: 18:13 | ||
| /// email: [email protected] | ||
| /// target: xxx | ||
|
|
||
| // Created with Android Studio. | ||
| // User: 三帆 | ||
| // Date: 31/01/2019 | ||
| // Time: 18:13 | ||
| // email: [email protected] | ||
| // target: xxx | ||
| // | ||
|
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||
|
|
||
| //enum DateType { | ||
| // Int, | ||
|
|
@@ -20,9 +23,16 @@ | |
| // spKey({this.name, this.type}); | ||
| //} | ||
|
|
||
| class sharedPreferencesKeys { | ||
| class SharedPreferencesKeys { | ||
| /// boolean | ||
| /// 用于欢迎页面. 只有第一次访问才会显示. 或者手动将这个值设为false | ||
| static String showWelcome = 'loginWelcone'; | ||
| /// json | ||
| /// 用于存放搜索页的搜索数据. | ||
| /// [{ | ||
| /// name: 'name' | ||
| /// | ||
| /// }] | ||
| static String searchHistory = 'searchHistory'; | ||
| } | ||
|
|
||
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