google 2013 Rosemount Show volley framework, here is a demo, teach you the basic usage.

vollerDemo
..........\.DS_Store
__MACOSX
........\vollerDemo
........\..........\._.DS_Store
vollerDemo\.idea
..........\.....\.name
..........\.....\compiler.xml
..........\.....\copyright
..........\.....\.........\profiles_settings.xml
..........\.....\encodings.xml
..........\.....\libraries
..........\.....\.........\libs.xml
..........\.....\misc.xml
..........\.....\modules.xml
..........\.....\scopes
..........\.....\......\scope_settings.xml
..........\.....\vcs.xml
..........\.....\workspace.xml
..........\out
..........\...\production
..........\...\..........\VolleyDemo
..........\...\..........\..........\com
..........\...\..........\..........\...\lms
..........\...\..........\..........\...\...\volleydemo
..........\...\..........\..........\...\...\..........\BuildConfig.class
..........\...\..........\..........\...\...\..........\Helper.class
..........\...\..........\..........\...\...\..........\JsonActivity$1.class
..........\...\..........\..........\...\...\..........\JsonActivity$2.class
..........\...\..........\..........\...\...\..........\JsonActivity.class
..........\...\..........\..........\...\...\..........\LruImageCache$1.class
..........\...\..........\..........\...\...\..........\LruImageCache.class
..........\...\..........\..........\...\...\..........\MainActivity$1.class
..........\...\..........\..........\...\...\..........\MainActivity$2.class
..........\...\..........\..........\...\...\..........\MainActivity$GridAdapter.class
..........\...\..........\..........\...\...\..........\MainActivity$ViewHolder.class
..........\...\..........\..........\...\...\..........\MainActivity.class
..........\...\..........\..........\...\...\..........\R$attr.class
..........\...\..........\..........\...\...\..........\R$dimen.class
..........\...\..........\..........\...\...\..........\R$drawable.class
..........\...\..........\..........\...\...\..........\R$id.class
..........\...\..........\..........\...\...\..........\R$layout.class
..........\...\..........\..........\...\...\..........\R$menu.class
..........\...\..........\..........\...\...\..........\R$string.class
..........\...\..........\..........\...\...\..........\R$style.class
..........\...\..........\..........\...\...\..........\R.class
..........\...\..........\..........\VolleyDemo.apk
..........\VolleyDemo
..........\..........\.classpath
__MACOSX\vollerDemo\VolleyDemo
........\..........\..........\._.classpath
vollerDemo\VolleyDemo\.DS_Store
__MACOSX\vollerDemo\VolleyDemo\._.DS_Store
vollerDemo\VolleyDemo\.project
__MACOSX\vollerDemo\VolleyDemo\._.project
vollerDemo\VolleyDemo\.settings
..........\..........\.........\org.eclipse.jdt.core.prefs
__MACOSX\vollerDemo\VolleyDemo\.settings
........\..........\..........\.........\._org.eclipse.jdt.core.prefs
........\..........\..........\._.settings
vollerDemo\VolleyDemo\AndroidManifest.xml
__MACOSX\vollerDemo\VolleyDemo\._AndroidManifest.xml
vollerDemo\VolleyDemo\assets
..........\..........\gen
..........\..........\...\com
..........\..........\...\...\lms
..........\..........\...\...\...\volleydemo
..........\..........\...\...\...\..........\BuildConfig.java
..........\..........\...\...\...\..........\Manifest.java
..........\..........\...\...\...\..........\R.java
..........\..........\ic_launcher-web.png
__MACOSX\vollerDemo\VolleyDemo\._ic_launcher-web.png
vollerDemo\VolleyDemo\libs
..........\..........\....\android-support-v4.jar
__MACOSX\vollerDemo\VolleyDemo\libs
........\..........\..........\....\._android-support-v4.jar
vollerDemo\VolleyDemo\libs\volley.jar
__MACOSX\vollerDemo\VolleyDemo\libs\._volley.jar
vollerDemo\VolleyDemo\proguard-project.txt
__MACOSX\vollerDemo\VolleyDemo\._proguard-project.txt
vollerDemo\VolleyDemo\project.properties
__MACOSX\vollerDemo\VolleyDemo\._project.properties
vollerDemo\VolleyDemo\res
..........\..........\...\drawable-hdpi
..........\..........\...\.............\ic_launcher.png
__MACOSX\vollerDemo\VolleyDemo\res
........\..........\..........\...\drawable-hdpi
........\..........\..........\...\.............\.

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