录音demo，实现录音，播放，删除功能
#	new file:   .settings/org.eclipse.jdt.core.prefs
#	new file:   AndroidManifest.xml
#	new file:   ic_launcher-web.png
#	new file:   libs/android-support-v4.jar
#	new file:   proguard-project.txt
#	new file:   project.properties
#	new file:   res/drawable-hdpi/ic_launcher.png
#	new file:   res/drawable-ldpi/ic_launcher.png
#	new file:   res/drawable-mdpi/ic_launcher.png
#	new file:   res/drawable-xhdpi/ic_launcher.png
#	new file:   res/layout/activity_audio_recored.xml
#	new file:   res/layout/simple_item.xml
#	new file:   res/menu/activity_audio_recored.xml
#	new file:   res/values-v11/styles.xml
#	new file:   res/values-v14/styles.xml
#	new file:   res/values/strings.xml
#	new file:   res/values/styles.xml
#	new file:   src/com/example/audiorecord/AudioRecored.java
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