(They are all open source code on some codes. I hope these tools can help the development of domestic entry-level programs. The attachment is a source code for multi touch, which teaches you how to use multi touch and how to make corresponding dot and multi track.
TouchTest\bin\com\commonsware\cwac\tlv\LICENSE
TouchTest\bin\com\commonsware\cwac\tlv\README.markdown
TouchTest\bin\com\commonsware\cwac\tlv\TouchListView$1.class
TouchTest\bin\com\commonsware\cwac\tlv\TouchListView$DragListener.class
TouchTest\bin\com\commonsware\cwac\tlv\TouchListView$DropListener.class
TouchTest\bin\com\commonsware\cwac\tlv\TouchListView$RemoveListener.class
TouchTest\bin\com\commonsware\cwac\tlv\TouchListView.class
TouchTest\bin\org\hermit\android\core\AppUtils$Detail.class
TouchTest\bin\org\hermit\android\core\AppUtils$Version.class
TouchTest\bin\org\hermit\android\core\AppUtils.class
TouchTest\bin\org\hermit\android\core\Errors$1.class
TouchTest\bin\org\hermit\android\core\Errors$2.class
TouchTest\bin\org\hermit\android\core\Errors.class
TouchTest\bin\org\hermit\android\core\HelpActivity$BodyView.class
TouchTest\bin\org\hermit\android\core\HelpActivity$HelpView.class
TouchTest\bin\org\hermit\android\core\HelpActivity$TitleView.class
TouchTest\bin\org\hermit\android\core\HelpActivity.class
TouchTest\bin\org\hermit\android\core\MainActivity$ActivityListener.class
TouchTest\bin\org\hermit\android\core\MainActivity.class
TouchTest\bin\org\hermit\android\core\OneTimeDialog$1.class
TouchTest\bin\org\hermit\android\core\OneTimeDialog.class
TouchTest\bin\org\hermit\android\core\package.html
TouchTest\bin\org\hermit\android\core\SplashActivity$1.class
TouchTest\bin\org\hermit\android\core\SplashActivity$2.class
TouchTest\bin\org\hermit\android\core\SplashActivity.class
TouchTest\bin\org\hermit\android\core\SurfaceRunner$LoopTicker$1.class
TouchTest\bin\org\hermit\android\core\SurfaceRunner$LoopTicker.class
TouchTest\bin\org\hermit\android\core\SurfaceRunner$ThreadTicker.class
TouchTest\bin\org\hermit\android\core\SurfaceRunner$Ticker.class
TouchTest\bin\org\hermit\android\core\SurfaceRunner.class)