File list (Check if you may need any files):
3-1(Button与点击监听器)\ButtonProject\.classpath
.......................\.............\.project
.......................\.............\.settings\org.eclipse.jdt.core.prefs
.......................\.............\AndroidManifest.xml
.......................\.............\bin\AndroidManifest.xml
.......................\.............\...\ButtonProject.apk
.......................\.............\...\classes\com\himi\button\BuildConfig.class
.......................\.............\...\.......\...\....\......\MainActivity$1.class
.......................\.............\...\.......\...\....\......\MainActivity$2.class
.......................\.............\...\.......\...\....\......\MainActivity.class
.......................\.............\...\.......\...\....\......\R$attr.class
.......................\.............\...\.......\...\....\......\R$drawable.class
.......................\.............\...\.......\...\....\......\R$id.class
.......................\.............\...\.......\...\....\......\R$layout.class
.......................\.............\...\.......\...\....\......\R$string.class
.......................\.............\...\.......\...\....\......\R.class
.......................\.............\...\classes.dex
.......................\.............\...\jarlist.cache
.......................\.............\...\res\crunch\drawable-hdpi\icon.png
.......................\.............\...\...\......\.........ldpi\icon.png
.......................\.............\...\...\......\.........mdpi\icon.png
.......................\.............\...\resources.ap_
.......................\.............\gen\com\himi\button\BuildConfig.java
.......................\.............\...\...\....\......\R.java
.......................\.............\project.properties
.......................\.............\res\drawable-hdpi\icon.png
.......................\.............\...\.........ldpi\icon.png
.......................\.............\...\.........mdpi\icon.png
.......................\.............\...\layout\main.xml
.......................\.............\...\values\strings.xml
.......................\.............\src\com\himi\button\MainActivity.java
.......................\.............\bin\classes\com\himi\button
.......................\.............\...\.......\...\himi
.......................\.............\...\res\crunch\drawable-hdpi
.......................\.............\...\...\......\drawable-ldpi
.......................\.............\...\...\......\drawable-mdpi
.......................\.............\gen\com\himi\button
.......................\.............\src\com\himi\button
.......................\.............\bin\classes\com
.......................\.............\...\res\crunch
.......................\.............\gen\com\himi
.......................\.............\src\com\himi
.......................\.............\bin\classes
.......................\.............\...\dexedLibs
.......................\.............\...\res
.......................\.............\gen\com
.......................\.............\res\drawable-hdpi
.......................\.............\...\drawable-ldpi
.......................\.............\...\drawable-mdpi
.......................\.............\...\drawable-xhdpi
.......................\.............\...\layout
.......................\.............\...\values
.......................\.............\src\com
.......................\.............\.settings
.......................\.............\assets
.......................\.............\bin
.......................\.............\gen
.......................\.............\res
.......................\.............\src
.......................\ButtonProject
3-1(Button与点击监听器)