Full code is
String currentProcName = "";
int pid = android.os.Process.myPid();
ActivityManager manager = (ActivityManager) this.getSystemService(Context.ACTIVITY_SERVICE);
for (RunningAppProcessInfo processInfo : manager.getRunningAppProcesses())
{
if (processInfo.pid == pid)
{
currentProcName = processInfo.processName;
return;
}
}