在SharedPreferences中存储值

Question

onDataChange

如何在SharedPreferences中存储值？值是纬度和经度。然后我想用片段检索它们，任何想法？

Answer 1

试试这个，

     SharedPreferences preferences = getSharedPreferences("AppPrefs", MODE_PRIVATE);
    SharedPreferences.Editor PrefsEditor = preferences.edit();

    //set value
    Double longitude latitude,
    PrefsEditor.putString("latitude", longitude+"");
    PrefsEditor.putString("longitude", latitude+"");


    //get value
    String latitude_value=preferences.getString("latitude", "");    
    String longitude_value=preferences.getString("longitude", "");      

Answer 2

 SharedPreferences preferences = context.getSharedPreferences("MyPrefs", MODE_PRIVATE);
    SharedPreferences.Editor PrefsEditor = preferences.edit();

    //set value to pref
    Double longitude latitude,
    PrefsEditor.putString("latitude", longitude+"");
    PrefsEditor.putString("longitude", latitude+"");


    //get value from pref in fragment

    SharedPreferences preferences = getActivity().getSharedPreferences("MyPrefs", MODE_PRIVATE);
    String latitude_value=preferences.getString("latitude", "");    
    String longitude_value=preferences.getString("longitude", ""); 

    prefsEditor.apply()