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82- < meta name ="description " content ="1234title: 安卓注解处理器-processordate: 2019-01-04 19:02:34tags: annotation、processor、自动生成java文件category: 注解 最近在学习安卓开源框架发现，很多的开源框架都使用到了注解处理器，例如EventBus3.0。本文通过一个简单的Demo来介绍如何使用注解处理器。Demo链接为https://github.com>
83- < meta name ="keywords " content ="Android ">
82+ < meta name ="description " content ="最近在学习安卓开源框架发现，很多的开源框架都使用到了注解处理器，例如EventBus3.0。本文通过一个简单的Demo来介绍如何使用注解处理器。Demo链接为https://github.com/cugyong/AnnotationProcessor-sample ，如果喜欢的话，欢迎大家给star。 ">
83+ < meta name ="keywords " content ="annotation、processor、自动生成java文件 ">
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85+ < meta property ="og:title " content ="安卓注解处理器-processor ">
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88- < meta property ="og:description " content ="1234title: 安卓注解处理器-processordate: 2019-01-04 19:02:34tags: annotation、processor、自动生成java文件category: 注解 最近在学习安卓开源框架发现，很多的开源框架都使用到了注解处理器，例如EventBus3.0。本文通过一个简单的Demo来介绍如何使用注解处理器。Demo链接为https://github.com>
88+ < meta property ="og:description " content ="最近在学习安卓开源框架发现，很多的开源框架都使用到了注解处理器，例如EventBus3.0。本文通过一个简单的Demo来介绍如何使用注解处理器。Demo链接为https://github.com/cugyong/AnnotationProcessor-sample ，如果喜欢的话，欢迎大家给star。 ">
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96- < meta name ="twitter:image " content ="http://yoursite.com/2019/01/04/安卓注解处理器-processor/框架流程 .png ">
94+ < meta name ="twitter:title " content ="安卓注解处理器-processor ">
95+ < meta name ="twitter:description " content ="最近在学习安卓开源框架发现，很多的开源框架都使用到了注解处理器，例如EventBus3.0。本文通过一个简单的Demo来介绍如何使用注解处理器。Demo链接为https://github.com/cugyong/AnnotationProcessor-sample ，如果喜欢的话，欢迎大家给star。 ">
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373- < figure class ="highlight plain "> < table > < tr > < td class ="gutter "> < pre > < span class ="line "> 1</ span > < br > < span class ="line "> 2</ span > < br > < span class ="line "> 3</ span > < br > < span class ="line "> 4</ span > < br > </ pre > </ td > < td class ="code "> < pre > < span class ="line "> title: 安卓注解处理器-processor</ span > < br > < span class ="line "> date: 2019-01-04 19:02:34</ span > < br > < span class ="line "> tags: annotation、processor、自动生成java文件</ span > < br > < span class ="line "> category: 注解</ span > < br > </ pre > </ td > </ tr > </ table > </ figure >
374- < p > 最近在学习安卓开源框架发现，很多的开源框架都使用到了注解处理器，例如EventBus3.0。本文通过一个简单的Demo来介绍如何使用注解处理器。Demo链接为< a href ="https://github.com/cugyong/AnnotationProcessor-sample " target ="_blank " rel ="noopener "> https://github.com/cugyong/AnnotationProcessor-sample</ a > ，如果喜欢的话，欢迎大家给star。< a id ="more "> </ a > </ p >
395+ < p > 最近在学习安卓开源框架发现，很多的开源框架都使用到了注解处理器，例如EventBus3.0。本文通过一个简单的Demo来介绍如何使用注解处理器。Demo链接为< a href ="https://github.com/cugyong/AnnotationProcessor-sample " target ="_blank " rel ="noopener "> https://github.com/cugyong/AnnotationProcessor-sample</ a > ，如果喜欢的话，欢迎大家给star。< a id ="more "> </ a > </ p >
375396< h2 id ="Demo需求描述 "> < a href ="#Demo需求描述 " class ="headerlink " title ="Demo需求描述 "> </ a > Demo需求描述</ h2 > < p > 用户通过执行一个传入参数为A（类对象）的静态方法，该方法会最终把参数A中加了特定注解的所有方法执行一遍。</ p >
376- < h2 id ="需求实现 "> < a href ="#需求实现 " class ="headerlink " title ="需求实现 "> </ a > 需求实现</ h2 > < p > < img src ="/2019/01/04/安卓注解处理器-processor/框架流程 .png " alt ="框架流程 "> </ p >
397+ < h2 id ="需求实现 "> < a href ="#需求实现 " class ="headerlink " title ="需求实现 "> </ a > 需求实现</ h2 > < p > < img src ="/2019/01/04/安卓注解处理器-processor/D:/blog/source/_posts/%E5%AE%89%E5%8D%93%E6%B3%A8%E8%A7%A3%E5%A4%84%E7%90%86%E5%99%A8-processor/%E6%A1%86%E6%9E%B6%E6%B5%81%E7%A8%8B .png " alt ="框架流程 "> </ p >
377398< p > 整个项目分为四个部分：</ p >
378399< ul >
379400< li > 注解–要使用的注解类型，这部分通常也可以放在lib中；</ li >
@@ -383,7 +404,7 @@ <h2 id="需求实现"><a href="#需求实现" class="headerlink" title="需求
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384405< p > 首先新建一个安卓工程，点击运行展示的是hello world。</ p >
385406< h3 id ="注解 "> < a href ="#注解 " class ="headerlink " title ="注解 "> </ a > 注解</ h3 > < p > 在上述工程中new->Module->Java Library，新建一个Java Library Module，命名为annotation。在该Module下创建一个文件AnnotationTest.java，</ p >
386- < p > < img src ="/2019/01/04/安卓注解处理器-processor/annotation.png " alt ="1546591844724 "> </ p >
407+ < p > < img src ="/2019/01/04/安卓注解处理器-processor/D:/blog/source/_posts/%E5%AE%89%E5%8D%93%E6%B3%A8%E8%A7%A3%E5%A4%84%E7%90%86%E5%99%A8-processor/ annotation.png " alt ="1546591844724 "> </ p >
387408< p > AnnotationTest.java里面代码如下：</ p >
388409< figure class ="highlight plain "> < table > < tr > < td class ="gutter "> < pre > < span class ="line "> 1</ span > < br > < span class ="line "> 2</ span > < br > < span class ="line "> 3</ span > < br > < span class ="line "> 4</ span > < br > < span class ="line "> 5</ span > < br > </ pre > </ td > < td class ="code "> < pre > < span class ="line "> @Retention(RetentionPolicy.CLASS)</ span > < br > < span class ="line "> @Target(ElementType.METHOD)</ span > < br > < span class ="line "> public @interface AnnotationTest {</ span > < br > < span class ="line "> String name() default "test";</ span > < br > < span class ="line "> }</ span > < br > </ pre > </ td > </ tr > </ table > </ figure >
389410< p > 1、注解@Retention按生命周期来划分可分为3类：</ p >
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