2019-01-02 13:58:15
清除缓存功能很常见，Apicloud中有现成的方法，整理记录一下；
其中字节转换部分，很合用。
以后会整理一份不仅限Apicloud中使用的。
1 <!doctype html>
2 <html>
3
4 <head>
5 <meta charset="utf-8">
6 <meta name="viewport" content="maximum-scale=1.0,minimum-scale=1.0,user-scalable=0,width=device-width,initial-scale=1.0" />
7 <title>APICloud APP</title>
8 <link rel="stylesheet" type="text/css" href="../css/api.css" />
9 <link rel="stylesheet" type="text/css" href="../css/style.css" />
10
11 </head>
12
13 <body>
14 <header style="display:flex;flex-direction:column-reverse;" class="buy_car_wrap" id="header">
15 <div style="width:100%;height:60px;display:flex;justify-content:space-around;align-items:center;">
16 <div class="buy_car_arrowl" onclick="closeWin()"></div>
17 <div style="height:100%;width:65%;display:flex;align-items:center;justify-content:center;">设置</div>
18 <div></div>
19 </div>
20 </header>
21
22 <div class="h10"></div>
23 <section>
24 <!-- 车辆款式 -->
25 <div class="vehicle_type ">
26 <div class="vehicle_type_set">密码管理</div>
27 <input type="text" placeholder="" readonly class="vehicle_set" onclick="confirm_mobile()">
28 <div class="vehicle_type_left"></div>
29 </div>
30 <div class="vehicle_type " onclick="aboutus()">
31 <div class="vehicle_type_set">关于我们</div>
32 <input type="text" placeholder="" readonly class="vehicle_set">
33 <div class="vehicle_type_left"></div>
34 </div>
35 <div class="vehicle_type ">
36 <div class="vehicle_type_set">意见反馈</div>
37 <input type="text" onclick="view()" readonly placeholder="" class="vehicle_set">
38 <div class="vehicle_type_left"></div>
39 </div>
40 <div class="vehicle_type " onclick="qinc();">
41 <div class="vehicle_type_set">清除缓存</div>
42 <div class="vehicle_set" id="huancun"></div>
43 <div class="vehicle_type_left"></div>
44 </div>
45 <div class="vehicle_type ">
46 <div class="vehicle_type_set">版本</div>
47 <div class="vehicle_set">当前版本：1.0.5</div>
48 <div class="vehicle_type_left"></div>
49 </div>
50
51 <div class="frame1_findmore" onclick="close_quit()" id="quit">退出登录</div>
52
53 </section>
54
55
56 </body>
57 <script type="text/javascript" src="../script/api.js"></script>
58 <script type="text/javascript" src="../script/jquery.min.js"></script>
59 <script type="text/javascript">
60 var size;
61 apiready = function() {
62 hc();
63
64 };
65
66 //获取缓存大小
67 function hc() {
68 api.getCacheSize(function(ret) {
69 size = ret.size;
70 console.log(size);
71 bytesToSize();
72 // console.log(bytesToSize(parseInt(size)));
73 $api.byId(‘huancun‘).innerHTML = bytesToSize(parseInt(size));
74
75 });
76
77 }
78 //转换
79 function bytesToSize(bytes) {
80 if(bytes === 0) return ‘0 B‘;
81 var k = 1024,
82 sizes = [‘B‘, ‘KB‘, ‘MB‘, ‘GB‘, ‘TB‘, ‘PB‘, ‘EB‘, ‘ZB‘, ‘YB‘],
83 i = Math.floor(Math.log(bytes) / Math.log(k));
84
85 return(bytes / Math.pow(k, i)).toPrecision(3) + ‘ ‘ + sizes[i];
86 }
87 //清除缓存
88 function qinc() {
89 var dialogBox = api.require(‘dialogBox‘);
90 dialogBox.alert({
91 texts: {
92 title: ‘提示‘,
93 content: ‘您确定要清除缓存吗？‘,
94 leftBtnTitle: ‘取消‘,
95 rightBtnTitle: ‘确认‘
96 },
97 styles: {
98 bg: ‘#fff‘,
99 w: 300,
100 corner: 2,
101 title: {
102 marginT: 20,
103 icon: ‘widget://res/gou.png‘,
104 iconSize: 40,
105 titleSize: 22,
106 titleColor: ‘#000‘
107 },
108 content: {
109 color: ‘#000‘,
110 size: 16
111 },
112 left: {
113 marginB: 7,
114 marginL: 20,
115 w: 130,
116 h: 35,
117 corner: 2,
118 bg: ‘#fff‘,
119 color: ‘#F3544E‘,
120 size: 14
121 },
122 right: {
123 marginB: 7,
124 marginL: 10,
125 w: 130,
126 h: 35,
127 corner: 2,
128 bg: ‘#fff‘,
129 color: ‘#F3544E‘,
130 size: 14
131 }
132 }
133 }, function(ret) {
134
135 if(ret.eventType == ‘left‘) {
136 //取消
137 var dialogBox = api.require(‘dialogBox‘);
138 dialogBox.close({
139 dialogName: ‘alert‘
140 });
141 } else if(ret.eventType == ‘right‘) {
142 //确定
143 var dialogBox = api.require(‘dialogBox‘);
144 dialogBox.close({
145 dialogName: ‘alert‘
146 });
147
148 api.clearCache(function() {
149 api.toast({
150 msg: ‘清除完成‘
151 });
152 });
153
154 hc();
155
156 }
157
158 });
159
160 }
161 </script>
162
163 </html>
原文地址：https://www.cnblogs.com/jry199506/p/10208196.html
时间： 2024-07-31 09:50:40