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index.html
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<style>
body {
font-family: Helvetica, arial, sans-serif;
font-size: 14px;
line-height: 1.6;
padding-top: 10px;
padding-bottom: 10px;
background-color: white;
padding: 30px; }
body > *:first-child {
margin-top: 0 !important; }
body > *:last-child {
margin-bottom: 0 !important; }
a {
color: #4183C4; }
a.absent {
color: #cc0000; }
a.anchor {
display: block;
padding-left: 30px;
margin-left: -30px;
cursor: pointer;
position: absolute;
top: 0;
left: 0;
bottom: 0; }
h1, h2, h3, h4, h5, h6 {
margin: 20px 0 10px;
padding: 0;
font-weight: bold;
-webkit-font-smoothing: antialiased;
cursor: text;
position: relative; }
h1:hover a.anchor, h2:hover a.anchor, h3:hover a.anchor, h4:hover a.anchor, h5:hover a.anchor, h6:hover a.anchor {
background: url(data:image/png;base64,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) no-repeat 10px center;
text-decoration: none; }
h1 tt, h1 code {
font-size: inherit; }
h2 tt, h2 code {
font-size: inherit; }
h3 tt, h3 code {
font-size: inherit; }
h4 tt, h4 code {
font-size: inherit; }
h5 tt, h5 code {
font-size: inherit; }
h6 tt, h6 code {
font-size: inherit; }
h1 {
font-size: 28px;
color: black; }
h2 {
font-size: 24px;
border-bottom: 1px solid #cccccc;
color: black; }
h3 {
font-size: 18px; }
h4 {
font-size: 16px; }
h5 {
font-size: 14px; }
h6 {
color: #777777;
font-size: 14px; }
p, blockquote, ul, ol, dl, li, table, pre {
margin: 15px 0; }
hr {
background: transparent url(data:image/png;base64,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) repeat-x 0 0;
border: 0 none;
color: #cccccc;
height: 4px;
padding: 0;
}
body > h2:first-child {
margin-top: 0;
padding-top: 0; }
body > h1:first-child {
margin-top: 0;
padding-top: 0; }
body > h1:first-child + h2 {
margin-top: 0;
padding-top: 0; }
body > h3:first-child, body > h4:first-child, body > h5:first-child, body > h6:first-child {
margin-top: 0;
padding-top: 0; }
a:first-child h1, a:first-child h2, a:first-child h3, a:first-child h4, a:first-child h5, a:first-child h6 {
margin-top: 0;
padding-top: 0; }
h1 p, h2 p, h3 p, h4 p, h5 p, h6 p {
margin-top: 0; }
li p.first {
display: inline-block; }
li {
margin: 0; }
ul, ol {
padding-left: 30px; }
ul :first-child, ol :first-child {
margin-top: 0; }
dl {
padding: 0; }
dl dt {
font-size: 14px;
font-weight: bold;
font-style: italic;
padding: 0;
margin: 15px 0 5px; }
dl dt:first-child {
padding: 0; }
dl dt > :first-child {
margin-top: 0; }
dl dt > :last-child {
margin-bottom: 0; }
dl dd {
margin: 0 0 15px;
padding: 0 15px; }
dl dd > :first-child {
margin-top: 0; }
dl dd > :last-child {
margin-bottom: 0; }
blockquote {
border-left: 4px solid #dddddd;
padding: 0 15px;
color: #777777; }
blockquote > :first-child {
margin-top: 0; }
blockquote > :last-child {
margin-bottom: 0; }
table {
padding: 0;border-collapse: collapse; }
table tr {
border-top: 1px solid #cccccc;
background-color: white;
margin: 0;
padding: 0; }
table tr:nth-child(2n) {
background-color: #f8f8f8; }
table tr th {
font-weight: bold;
border: 1px solid #cccccc;
margin: 0;
padding: 6px 13px; }
table tr td {
border: 1px solid #cccccc;
margin: 0;
padding: 6px 13px; }
table tr th :first-child, table tr td :first-child {
margin-top: 0; }
table tr th :last-child, table tr td :last-child {
margin-bottom: 0; }
img {
max-width: 100%; }
span.frame {
display: block;
overflow: hidden; }
span.frame > span {
border: 1px solid #dddddd;
display: block;
float: left;
overflow: hidden;
margin: 13px 0 0;
padding: 7px;
width: auto; }
span.frame span img {
display: block;
float: left; }
span.frame span span {
clear: both;
color: #333333;
display: block;
padding: 5px 0 0; }
span.align-center {
display: block;
overflow: hidden;
clear: both; }
span.align-center > span {
display: block;
overflow: hidden;
margin: 13px auto 0;
text-align: center; }
span.align-center span img {
margin: 0 auto;
text-align: center; }
span.align-right {
display: block;
overflow: hidden;
clear: both; }
span.align-right > span {
display: block;
overflow: hidden;
margin: 13px 0 0;
text-align: right; }
span.align-right span img {
margin: 0;
text-align: right; }
span.float-left {
display: block;
margin-right: 13px;
overflow: hidden;
float: left; }
span.float-left span {
margin: 13px 0 0; }
span.float-right {
display: block;
margin-left: 13px;
overflow: hidden;
float: right; }
span.float-right > span {
display: block;
overflow: hidden;
margin: 13px auto 0;
text-align: right; }
code, tt {
margin: 0 2px;
padding: 0 5px;
white-space: nowrap;
border: 1px solid #eaeaea;
background-color: #f8f8f8;
border-radius: 3px; }
pre code {
margin: 0;
padding: 0;
white-space: pre;
border: none;
background: transparent; }
.highlight pre {
background-color: #f8f8f8;
border: 1px solid #cccccc;
font-size: 13px;
line-height: 19px;
overflow: auto;
padding: 6px 10px;
border-radius: 3px; }
pre {
background-color: #f8f8f8;
border: 1px solid #cccccc;
font-size: 13px;
line-height: 19px;
overflow: auto;
padding: 6px 10px;
border-radius: 3px; }
pre code, pre tt {
background-color: transparent;
border: none; }
sup {
font-size: 0.83em;
vertical-align: super;
line-height: 0;
}
* {
-webkit-print-color-adjust: exact;
}
@media screen and (min-width: 914px) {
body {
width: 854px;
margin:0 auto;
}
}
@media print {
table, pre {
page-break-inside: avoid;
}
pre {
word-wrap: break-word;
}
}
</style>
<title>Android-Code-Style</title>
</head>
<body>
<h1>Android-Code-Style</h1>
<h2>1. 约定</h2>
<ul>
<li><strong>Activity.onCreate()，Fragment.onActivityCreated()，紧跟成员变量后，方法内部保持简单，尽量只调用initXXX()方法，如：initData()，initView()。</strong></li>
<li>调用方法保持<strong>“临近原则”</strong>，被调用的方法，放在调用方法下方</li>
<li><strong>单个方法体不要过长</strong></li>
<li><strong>代码任何地方不要拼错单词</strong></li>
<li>统一调整IDE的Tab缩进为4个空格</li>
<li><strong>杜绝整个类代码格式化</strong></li>
</ul>
<h2>2. 命名</h2>
<h3>2.1. 布局文件中的id命名</h3>
<p><strong>规则：使用驼峰命名，前缀+逻辑名称，类变量名和布局文件id名称保持一致，不需要下划线分割</strong></p>
<table>
<thead>
<tr>
<th align="left">控件 </th>
<th align="left"> 缩写前缀</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">TextView/EditText </td>
<td align="left"> text</td>
</tr>
<tr>
<td align="left">ImageView </td>
<td align="left"> img</td>
</tr>
<tr>
<td align="left">Button/RadioButton/ImageButton </td>
<td align="left"> btn</td>
</tr>
<tr>
<td align="left">RelativeLayout/LinearLayout/FrameLayout </td>
<td align="left"> layout</td>
</tr>
<tr>
<td align="left">ListView </td>
<td align="left"> listView</td>
</tr>
<tr>
<td align="left">WebView </td>
<td align="left"> webView</td>
</tr>
<tr>
<td align="left">CheckBox </td>
<td align="left"> checkBox</td>
</tr>
<tr>
<td align="left">ProgressBar </td>
<td align="left"> progressBar</td>
</tr>
<tr>
<td align="left">seekBar </td>
<td align="left"> seekBar</td>
</tr>
<tr>
<td align="left">其他控件 </td>
<td align="left"> 控件名首字母缩写作为前缀</td>
</tr>
</tbody>
</table>
<ul>
<li>如：TextView @+id/textTitle</li>
<li>如：EditView @+id/textName</li>
<li>如：Button @+id/btnSearch</li>
</ul>
<h3>2.2. 布局文件命名</h3>
<p><strong>规则：</strong> 使用<strong>前缀_逻辑名称</strong>命名，单词全部小写，单词间以 下划线 分割。</p>
<table>
<thead>
<tr>
<th align="left">布局类型 </th>
<th align="left"> 布局前缀</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">Activity </td>
<td align="left"> activity_</td>
</tr>
<tr>
<td align="left">Fragment </td>
<td align="left"> fragment_</td>
</tr>
<tr>
<td align="left">Include </td>
<td align="left"> include_</td>
</tr>
<tr>
<td align="left">Dialog </td>
<td align="left"> dialog_</td>
</tr>
<tr>
<td align="left">PopupWindow </td>
<td align="left"> popup_</td>
</tr>
<tr>
<td align="left">Menu </td>
<td align="left"> menu_</td>
</tr>
<tr>
<td align="left">Adapter </td>
<td align="left"> layout_item_</td>
</tr>
</tbody>
</table>
<h3>2.3. 资源文件命名</h3>
<p><strong>规则：</strong> 使用 <strong>前缀_用途</strong> 命名，单词全部小写，单词间以 下划线 分割。</p>
<ul>
<li>图片资源文件命名</li>
</ul>
<table>
<thead>
<tr>
<th align="left">前缀 </th>
<th align="left"> 说明</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">bg_xxx </td>
<td align="left"> 各类背景图片</td>
</tr>
<tr>
<td align="left">btn_xxx </td>
<td align="left"> 这种按钮没有其他状态</td>
</tr>
<tr>
<td align="left">ic_xxx </td>
<td align="left"> 图标，一般用于单个图标</td>
</tr>
<tr>
<td align="left"><code>bg_描述_状态1[_状态2]</code> </td>
<td align="left"> 用于控件上的不同状态</td>
</tr>
<tr>
<td align="left"><code>btn_描述_状态1[_状态2]</code> </td>
<td align="left"> 用于按钮上的不同状态</td>
</tr>
<tr>
<td align="left"><code>chx_描述_状态1[_状态2]</code> </td>
<td align="left"> 选择框，一般有2态和4态</td>
</tr>
</tbody>
</table>
<ul>
<li>第三方资源文件，不管在value、drawable</li>
</ul>
<table>
<thead>
<tr>
<th>必须携带第三方资源前缀</th>
</tr>
</thead>
<tbody>
<tr>
<td>umeng_socialize_style.xml </td>
</tr>
<tr>
<td>pull_refresh_attrs.xml </td>
</tr>
</tbody>
</table>
<h3>2.4. 类和接口命名</h3>
<p><strong>规则：</strong> 使用驼峰规则，首字母必须大写，使用名词或名词词组。要求简单易懂，富于描述，不允许出现无意义或错误单词。</p>
<table>
<thead>
<tr>
<th align="left">类 </th>
<th align="left"> 描述 </th>
<th align="left"> 例如</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">Application类 </td>
<td align="left"> Application为后缀标识 </td>
<td align="left">XXXApplication</td>
</tr>
<tr>
<td align="left">Activity类 </td>
<td align="left"> Activity为后缀标识 </td>
<td align="left"> 闪屏页面类SplashActivity</td>
</tr>
<tr>
<td align="left">解析类 </td>
<td align="left"> Handler为后缀标识</td>
<td></td>
</tr>
<tr>
<td align="left">公共方法类 </td>
<td align="left"> Utils或Manager为后缀标识</td>
<td></td>
</tr>
<tr>
<td align="left">线程池管理类 </td>
<td align="left"> ThreadPoolManager</td>
<td></td>
</tr>
<tr>
<td align="left">日志工具类 </td>
<td align="left"> LogUtils</td>
<td></td>
</tr>
<tr>
<td align="left">数据库类 </td>
<td align="left"> 以DBHelper后缀标识 </td>
<td align="left"> MySQLiteDBHelper</td>
</tr>
<tr>
<td align="left">Service类 </td>
<td align="left"> 以Service为后缀标识 </td>
<td align="left"> 播放服务：PlayService</td>
</tr>
<tr>
<td align="left">BroadcastReceiver类 </td>
<td align="left"> 以Broadcast为后缀标识 </td>
<td align="left"> 时间通知：TimeBroadcast</td>
</tr>
<tr>
<td align="left">ContentProvider类 </td>
<td align="left"> 以Provider为后缀标识 </td>
<td align="left"> 单词内容提供者：DictProvider</td>
</tr>
<tr>
<td align="left">直接写的共享基础类 </td>
<td align="left"> 以Base为前缀 </td>
<td align="left"> BaseActivity,BaseFragment</td>
</tr>
</tbody>
</table>
<h3>2.5. 方法的命名</h3>
<p><strong>规则：</strong> 使用驼峰规则，首字母必须小写，使用动词。要求简单易懂，富于描述，不允许出现无意义或错误单词。</p>
<table>
<thead>
<tr>
<th>方法 </th>
<th> 说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>initXX() </td>
<td> 初始化相关方法，使用init为前缀标识，如初始化布局initView()</td>
</tr>
<tr>
<td>httpXX() </td>
<td> http业务请求方法，以http为前缀标识</td>
</tr>
<tr>
<td>getXX() </td>
<td> 返回某个值的方法，使用get为前缀标识</td>
</tr>
<tr>
<td>saveXX() </td>
<td> 与保存数据相关的，使用save为前缀标识</td>
</tr>
<tr>
<td>deleteXX() </td>
<td> 删除操作</td>
</tr>
<tr>
<td>resetXX() </td>
<td> 对数据重组的，使用reset前缀标识</td>
</tr>
<tr>
<td>clearXX() </td>
<td> 清除数据相关的</td>
</tr>
<tr>
<td>isXX() </td>
<td> 方法返回值为boolean型的请使用is或check为前缀标识</td>
</tr>
<tr>
<td>processXX() </td>
<td> 对数据进行处理的方法，尽量使用process为前缀标识</td>
</tr>
<tr>
<td>displayXX() </td>
<td> 弹出提示框和提示信息，使用display为前缀标识</td>
</tr>
<tr>
<td>drawXXX() </td>
<td> 绘制数据或效果相关的，使用draw前缀标识</td>
</tr>
</tbody>
</table>
<h3>2.6. 变量命名</h3>
<p><strong>规则：</strong> 使用驼峰规则，首字母必须小写，使用名词或名词词组。要求简单易懂，富于描述，不允许出现无意义或错误单词。</p>
<ul>
<li>成员变量命名，自定义变量前添加m前缀，布局控件变量不用添加m前缀</li>
<li>常量命名，全部大写，单词间用下划线隔开</li>
</ul>
<h2>3. 其他规范</h2>
<ul>
<li>Activity继承BaseFragmentActivity或SwipeBackActivity，可以使用ButterKnife注解代替findViewById</li>
<li>方法
<ul>
<li>拆分臃肿方法，每个方法只作一件事</li>
<li>做同一个逻辑的方法，尽量靠近放到一块，方便查看</li>
<li>不要使用 try catch 处理业务逻辑</li>
<li>使用JSON工具类，不要手动解析和拼装数据</li>
</ul>
</li>
<li>控制语句
<ul>
<li>减少条件嵌套，不要超过3层</li>
<li>if判断使用“卫语句”，减少层级<br/>
<code>
if(obj != null) {
doSomething();
}
</code> <br/>
修改为： <br/>
<code>
if(obj == null) {
return;
}
doSomething(); </code></li>
<li>if语句必须用{}包括起来,即便是只有一句</li>
</ul>
</li>
<li>处理“魔数”等看不懂的神秘数字
<ul>
<li>代码中不要出现数字，特别是一些标识不同类型的数字。</li>
<li>所有意义数字全部抽取到Constant公共类中，避免散布在各位类中。</li>
</ul>
</li>
<li>空行：空行将逻辑相关代码段隔开，简洁清楚，提高可读性
<ul>
<li>成员变量之间，根据业务形成分组加空行</li>
<li>方法之间加空行</li>
</ul>
</li>
<li>用好TODO标记
<ul>
<li>记录想法，记录功能点，开发过程中可以利用TODO记录一下临时想法或为了不打扰思路留下待完善的说明</li>
<li>删除无用TODO，开发工具自动生成的TODO，或则已经完善的TODO，一定要删除。</li>
</ul>
</li>
</ul>
<h2>4. IDE</h2>
<ul>
<li>Android Studio (越早使用越好)</li>
<li>Android SDK API 20（根据项目约定）</li>
<li>JDK 1.8（根据项目约定）</li>
</ul>
<h2>5. Libraries</h2>
<p><strong> Base </strong></p>
<ul>
<li>fastjson-android-1.2.4.jar</li>
<li>okhttp-2.2.0.jar</li>
<li>okio-1.2.0.jar</li>
<li>picasso-2.5.0.jar</li>
<li>butterknife:7.0.1</li>
<li>ormlite-android:4.48</li>
</ul>
<p><strong> UI </strong></p>
<ul>
<li>PullToRefresh</li>
<li>QuickAdapter</li>
<li>PagerSlidingTabStrip</li>
<li>SystemBarTint 状态栏以及导航栏设置背景颜色</li>
<li>SwipeBackLayout 左滑返回</li>
<li>PullToZoomView 可以下拉缩放HeaderView</li>
<li>AutoLoopViewPager 轮播图</li>
<li>PhotoView</li>
<li>ViewPageIndicator</li>
</ul>
<h2>View project on GitHub</h2>
<ul>
<li><a href="https://github.com/tianshaojie/android-code-style">https://github.com/tianshaojie/android-code-style</a></li>
</ul>
</body>
</html>