Android setArguments()和 Intent.putExtra()的用法之却别

public void onCreate(Bundle savedInstanceState){

super.onCreate(savedInstanceState);

// UUID crimeId=(UUID)getActivity().getIntent().getSerializableExtra(EXTRA_CRIME_ID); //这句话得到的UUID是最初的UUID，不是本例的UUID

UUID crimeId=(UUID)getArguments().getSerializable(Private_Extra_Crime_Id);

mCrime=CrimeLab.get(getActivity()).getCrime(crimeId);

Log.d(TAG,"onCreate() called with pos="+pos);

}