Android的热修复

最近在学习Android的热修复，使用了两个比较热门的框架，现做下总结：

项目git地址：https://github.com/dodola/RocooFix

源码会编译错误，可以使用下面的包。

修复lib包：RocooFix_libs

需要了解热修复原理的可以看下张鸿洋博客

也可以加下这个群：561394234 （里面有修复的项目，RocooFix作者也在里面！）

前言：

RocooFix支持两种模式： 
1、静态修复某种情况下需要重启应用。 （推荐使用） 
2、动态修复，无需重启应用即可生效。

使用方法：

<code class="hljs java has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"> <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//打补丁</span>        RocooFix.init(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">this</span>);<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//方案1：静态启用，一般在Application里加载补丁</span><span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/**  * 从Assets里取出补丁，一般用于测试  *  *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @param</span> context  *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @param</span> assetName  */</span>RocooFix.initPathFromAssets(Context context, String assetName); <span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/**   * 从指定目录加载补丁   *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @param</span> context   *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @param</span> dexPath   */</span>RocooFix.applyPatch(Context context, String dexPath);<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//方案2：动态打补丁，立即生效，有性能问题，适用于补丁方法数较少的情况，建议在ART虚拟机里启用该模式</span><span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** * 从Asset里加载补丁，一般用于本地测试 *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @param</span> context *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @param</span> assetName */</span>RocooFix.initPathFromAssetsRuntime(Context context, String assetName) ;<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/** * 从指定目录加载补丁 *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @param</span> context *<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @param</span> dexPath */</span> RocooFix.applyPatchRuntime(Context context, String dexPath)  ;</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li><li style="box-sizing: border-box; padding: 0px 5px;">35</li><li style="box-sizing: border-box; padding: 0px 5px;">36</li></ul>

没有加群的朋友可以下载上面的RocooFix_libs包跟着我一步步来做：

项目使用Android Studio开发，所以准备好翻墙工具下载依赖包！！！

一、新建Android项目 app

二、将上面下载文件里面的rocoo作为lib库导入 
在app的build.gradle 里面添加compile project(‘:rocoo’)，也可以手动添加依赖。

三、下载下来的文件夹里面还有个buildsrc文件直接放到app项目平级目录中(这个不用做任何操作)

到此我们的目录结构为：

四：配置 根目录里面的 build.gradle文件：

<code class="hljs cs has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">buildscript {    repositories {        jcenter()        maven {            url <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"http://dl.bintray.com/dodola/maven"</span>   <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//添加</span>        }    }    dependencies {        classpath <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'com.android.tools.build:gradle:2.1.2'</span>        classpath <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'org.jacoco:org.jacoco.core:0.7.4.201502262128'</span>   <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//添加</span>        <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// NOTE: Do not place your application dependencies here; they belong</span>        <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// in the individual module build.gradle files</span>    }}</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li></ul>

五、配置 app 里面的build.gradle 文件

<code class="hljs java has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">apply plugin: <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'com.android.application'</span>apply plugin: <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'com.dodola.rocoofix'</span>            <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//添加</span>android {    compileSdkVersion <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">23</span>    buildToolsVersion <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"23.0.3"</span>    defaultConfig {        applicationId <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"com.test.hotfixtest"</span>        minSdkVersion <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">15</span>        targetSdkVersion <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">23</span>        versionCode <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">6</span>        versionName <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"1.0"</span>    }<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//添加</span>    buildTypes {        release {            minifyEnabled <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">true</span>            proguardFiles getDefaultProguardFile(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'proguard-android.txt'</span>), <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'proguard-rules.pro'</span>        }        debug {            minifyEnabled <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">true</span>            proguardFiles getDefaultProguardFile(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'proguard-android.txt'</span>), <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'proguard-rules.pro'</span>        }    }}<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/****必须添加**/</span>rocoo_fix {    preVersionPath = <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'5'</span>    enable = <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">true</span>}dependencies {    compile fileTree(include: [<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'*.jar'</span>], dir: <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'libs'</span>)    testCompile <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'junit:junit:4.12'</span>    compile <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'com.android.support:appcompat-v7:23.1.1'</span>    compile project(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">':rocoo'</span>)}</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li><li style="box-sizing: border-box; padding: 0px 5px;">35</li><li style="box-sizing: border-box; padding: 0px 5px;">36</li><li style="box-sizing: border-box; padding: 0px 5px;">37</li><li style="box-sizing: border-box; padding: 0px 5px;">38</li><li style="box-sizing: border-box; padding: 0px 5px;">39</li><li style="box-sizing: border-box; padding: 0px 5px;">40</li><li style="box-sizing: border-box; padding: 0px 5px;">41</li><li style="box-sizing: border-box; padding: 0px 5px;">42</li><li style="box-sizing: border-box; padding: 0px 5px;">43</li><li style="box-sizing: border-box; padding: 0px 5px;">44</li></ul>

preVersionPath = ‘1’ //注意：此项属性只在需要制作补丁的时候才需开启！！如果不需要制作补丁则需要去掉此项（其中的数值是前一个版本的版本号）

enable = true //注意：关掉此项会无法生成Hash.txt文件

重点介绍一下 preVersionPath 的属性： 
rocoo_fix将制作补丁的步骤透明化，用户无需手动备份hash.txt文件，插件会自动根据当前的versionCode生成hash.txt和mapping.txt文件到指定目录； 
上一个版本发布的时候版本号是1，那么生成的文件会放在app源码目录/rocooFix/version1/[debug]|[release]的目录下，如果需要制作补丁那么在配置里指定preVersionPath 属性，它的值是上一个版本的版本号，这里的值是1， 
然后将build.gradle的versionCode的号码修改，这里修改成2，只要和之前的版本不同就可以，没有具体值的要求

六、添加混淆代码（proguard-rules.pro）：

<code class="hljs haml has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">-<span class="ruby" style="box-sizing: border-box;">keep <span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">com</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">dodola</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">rocoofix</span>.** {*;</span>}</span>-<span class="ruby" style="box-sizing: border-box;">keep <span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">com</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">lody</span>.<span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">legend</span>.* {*;</span>}</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

七、添加测试代码：

新建一个Java类：

<code class="hljs cs has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> HelloHack {         <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> String <span class="hljs-title" style="box-sizing: border-box;">showHello</span>() {                <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"rocoofix"</span>;              }    }</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li></ul>

在建一个继承Application的类：

<code class="hljs java has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">RocooApplication</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">extends</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">Application</span> {</span>    <span class="hljs-annotation" style="color: rgb(155, 133, 157); box-sizing: border-box;">@Override</span>    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">protected</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span> <span class="hljs-title" style="box-sizing: border-box;">attachBaseContext</span>(Context base) {        <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">super</span>.attachBaseContext(base);        <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//需要打补丁时开启</span>        RocooFix.init(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">this</span>);        <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//测试从assets文件夹读取补丁</span>        RocooFix.initPathFromAssets(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">this</span>, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"patch.jar"</span>);    }}</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li></ul>

八、运行项目看是否报错。测试已没错。

九、生成 patch.jar 文件 
1、首先随便修改下代码如：

<code class="hljs cs has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> HelloHack {         <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> String <span class="hljs-title" style="box-sizing: border-box;">showHello</span>() {                <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"rocoofix——ok"</span>;              }    }</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li></ul>

2、修改 app 项目中的build.gradle 文件把 versionCode 版本修改一下，把preVersionPath值修改成versionCode没修改之前的值。

最后运行项目就会在app目录下生成app\rocoofix\version4\debug\patch.jar 了，得到这个文件就算成功了，最后我们就可以随便测试补丁了，放在sd目录或者assets文件下，关闭补丁RocooFix.init(this) 运行没修改前的代码看看程序是否变了。

ps：这里做好心理准备补丁在有些机型会失效，目前测试MI 2S 4.4.4系统 成功。后面还会带来阿里的框架AndFix试用。