Where can I store data while the application is running?

Question

Where it is possible to store data while the application is running. That is, the data is in 1 fragment. I open the second fragment, then return to the first fragment and so that the vector remains with the same values.

Vector <Address> VectorAddress; public class Address { String name; double lon; double lan; Levels level; //Пользовательский класс ...get,set методы }

Make it public static and contact from anywhere. - Kirill Malyshev

Vitaly Robinovsky Vitaly Robinovsky 1,129 four 21 · Accepted Answer · 2017-02-19T19:56:05

Decided using Application.

In the manifest, you must also specify the scope of android:name="com.example.LocationAddress"

To enter the value I use

 locationAddress = (LocationAddress)getActivity().getApplication(); locationAddress.setNazalo_marhruta_adress(addressVector.get(0));

Similarly, for get, I use get-methods.

 public class LocationAddress extends Application { public ArrayList<Address> nazalo_marhruta_masssiv; public ArrayList <Address> ceredina_marhruta_massiv; public ArrayList <Address> konez_marhruta_massiv; public Address nazalo_marhruta_adress; public Address ceredina_marhruta_adress; public Address konez_marhruta_adress; public ArrayList<Address> getNazalo_marhruta_masssiv() { return nazalo_marhruta_masssiv; } public void setNazalo_marhruta_masssiv(ArrayList<Address> nazalo_marhruta_masssiv) { this.nazalo_marhruta_masssiv = nazalo_marhruta_masssiv; } public ArrayList<Address> getCeredina_marhruta_massiv() { return ceredina_marhruta_massiv; } public void setCeredina_marhruta_massiv(ArrayList<Address> ceredina_marhruta_massiv) { this.ceredina_marhruta_massiv = ceredina_marhruta_massiv; } public ArrayList<Address> getKonez_marhruta_massiv() { return konez_marhruta_massiv; } public void setKonez_marhruta_massiv(ArrayList<Address> konez_marhruta_massiv) { this.konez_marhruta_massiv = konez_marhruta_massiv; } public Address getNazalo_marhruta_adress() { return nazalo_marhruta_adress; } public void setNazalo_marhruta_adress(Address nazalo_marhruta_adress) { this.nazalo_marhruta_adress = nazalo_marhruta_adress; } public Address getCeredina_marhruta_adress() { return ceredina_marhruta_adress; } public void setCeredina_marhruta_adress(Address ceredina_marhruta_adress) { this.ceredina_marhruta_adress = ceredina_marhruta_adress; } public Address getKonez_marhruta_adress() { return konez_marhruta_adress; } public void setKonez_marhruta_adress(Address konez_marhruta_adress) { this.konez_marhruta_adress = konez_marhruta_adress; } }

Regent 17.7k five 21 39 · Answer 2 · 2017-02-19T18:48:31

If the data is computable and / or needed only while the application is running, then you can create a singleton class for storing it like this:

 public class MyStorage { private List<Address> _addresses; // единственный экземпляр класса private static MyStorage _instance = new MyStorage(); private MyStorage(){} public static MyStorage getInstance(){ return _instance; } /* Необходимые методы для доступа к данным или дополнительная логика */ }

If the data needs to be stored "for real", it is worth looking in the direction of storage in the database.

That is, I do not need to store them after exiting the application.

Where can I store data while the application is running?

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