(You can take a look at the source code of the android progress bar you made when you were a beginner of android. Suitable for beginners source code. Let your technology go further! This document includes the following annexes:
progressBar\.settings\org.eclipse.jdt.core.prefs
progressBar\bin\mars\progressBar\ProgressBarActivity$1.class
progressBar\bin\mars\progressBar\ProgressBarActivity$2.class
progressBar\bin\mars\progressBar\ProgressBarActivity$ButtonListener.class
progressBar\bin\mars\progressBar\ProgressBarActivity.class
progressBar\bin\mars\progressBar\R$attr.class
progressBar\bin\mars\progressBar\R$drawable.class
progressBar\bin\mars\progressBar\R$id.class
progressBar\bin\mars\progressBar\R$layout.class
progressBar\bin\mars\progressBar\R$string.class
progressBar\bin\mars\progressBar\R.class
progressBar\bin\classes.dex
progressBar\bin\progressBar.apk
progressBar\bin\resources.ap_
progressBar\gen\mars\progressBar\R.java
progressBar\res\drawable-hdpi\icon.png
progressBar\res\drawable-ldpi\icon.png
progressBar\res\drawable-mdpi\icon.png
progressBar\res\layout\main.xml
progressBar\res\values\strings.xml
progressBar\src\mars\progressBar\ProgressBarActivity.java
progressBar\.classpath
progressBar\.project
progressBar\AndroidManifest.xml
progressBar\default.properties
progressBar\proguard.cfg
.....)