(Android can play sine pure tone according to the specified frequency. First through AudioTrack.
PureToneTest\bin\com\lzg\puretone\AudioTrackManager.class
PureToneTest\bin\com\lzg\puretone\PureToneActivity.class
PureToneTest\bin\com\lzg\puretone\R$attr.class
PureToneTest\bin\com\lzg\puretone\R$drawable.class
PureToneTest\bin\com\lzg\puretone\R$layout.class
PureToneTest\bin\com\lzg\puretone\R$string.class
PureToneTest\bin\com\lzg\puretone\R.class
PureToneTest\bin\com\lzg\puretone\SinWave.class
PureToneTest\bin\classes.dex
PureToneTest\bin\PureToneTest.apk
PureToneTest\bin\resources.ap_
PureToneTest\gen\com\lzg\puretone\R.java
PureToneTest\res\drawable-hdpi\icon.png
PureToneTest\res\drawable-ldpi\icon.png
PureToneTest\res\drawable-mdpi\icon.png
PureToneTest\res\layout\main.xml
PureToneTest\res\values\strings.xml
PureToneTest\src\com\lzg\puretone\AudioTrackManager.java
PureToneTest\src\com\lzg\puretone\PureToneActivity.java
PureToneTest\src\com\lzg\puretone\SinWave.java
PureToneTest\.classpath
PureToneTest\.project
PureToneTest\AndroidManifest.xml
PureToneTest\default.properties
PureToneTest\proguard.cfg
..... Too many files omitted)