a demo for malware.
you can check whether you device can defence such malware.
may add more mal method in the future.
1, by location
by register a pending intent to location manager, can start up by system location manager.
launch this app and click "by location" button, then kill it.
launch another app which listen location manager, you will see this demo come up by itself after a while.
if not, congratulations, your device is safe.
启动应用，点击按钮，杀掉应用。启动另外一个需要地理信息的应用，比如地图应用，很快demo会自己起来。