server control command
// start server
adb shell am broadcast -a com.pekall.pctool.AmCommandReceiver.ACTION_MAIN_SERVER_START -n com.pekall.pctool/.AmCommandReceiver
// stop server
adb shell am broadcast -a com.pekall.pctool.AmCommandReceiver.ACTION_MAIN_SERVER_STOP -n com.pekall.pctool/.AmCommandReceiver