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#项目说明 ##编写粗糙的图片框架 -利用的是HttpURLConnection，后面会优化

使用Android的Paint画出不同的图形，加深对canvas和path的理解

-画了个篮球

使用属性动画，熟悉动画效果

  • 点击篮球可以运动

了解元注解的各个注解的使用

  • 利用@Documented生成了doc文件夹中的文件，使用浏览器打开index.html就有相关说明

运行时获取注解信息并更改

  • 反射，运行时动态获取注解信息, 知道这里怎么做的，那就知道retrofit是怎么使用注解的

简单的装饰模式

  • RedShapeDecorator

使用APT注解处理器，生成工厂类，工厂模式

  • 根据网上的提供注解处理器的方法完成注解处理器，但是遇到一个问题，就是项目的gradle升级后注解处理器不生效了，生成不了factory类
  • 经过多次尝试，根据Android studio的提示，将factorylib这个java-library的module下的build.gradle中的'com.google.auto.service:auto-service:1.0-rc4'前的引用变为annotationProcessor
  • 但是这样一来发现代码中找不到AutoService注解类了，于是我又加上了一个implementation 'com.google.auto.service:auto-service:1.0-rc4'，误打误撞就这么好了
  • 生成的factory类在app/build/intermediates/javac这个文件夹下面

用gradle插件实现ASM插桩

  • 使用groovy实现gradle插件

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