I have a class that implements the Parcelable class. From main activity, I pass an parcelable object. At the second activity I retrieve the objet and use the objet to change data. All is ok. But the problem is when I need to retrieve this changes from second activity to the main activity. I don't know how could I do it.
Here the call in the main activity:
public class MainActivity extends Activity {
Tgestion Tges= new Tgestion();
Button buttonI,buttonM,buttonB,buttonD,buttonS;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
}
public void addListenerOnButton() {
final Context context = this;
buttonI = (Button) findViewById(R.id.buttonIntroducir);
buttonI.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Intent intent = new Intent(context, IntroducirPatron.class);
intent.putExtra("com.example.sistemacontrasena.gestion", Tges);
startActivity(intent);
}
});
}
}
Tges is an objet that implements the parcelable class. In the second activity:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_introducir_patron);
// --- Obtenemos objeto Parcelable desde el Intent
this.gestion=getIntent().getParcelableExtra("com.example.sistemacontrasena.gestion");
}
After this I set some changes for example this.gestion.setSecret(value); When I close this second activity, in the main activity I don't know how can I retrieve this.gestion.getSecret() with the value that I put, for example. How can I do that?
The class parcelable is:
import android.os.Parcel;
import android.os.Parcelable;
public class Tgestion implements Parcelable{
private String[] secret;
public Tgestion(){
this.secret=new String[2];
}
/**
* Constructor Tgestion para parcel.
* @param source
*/
private Tgestion(Parcel source) {
this.secret=new String[2];
readFromParcel(source);
}
public void setSecret(String[] s){
for (int i=0;i<this.secret.length;i++){
this.secret[i]=s[i];
}
}
public String[] getSecret(){
return this.secret;
}
@Override
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
@Override
public void writeToParcel(Parcel destino, int flags) {
// TODO Auto-generated method stub
destino.writeStringArray(this.secret);
}
private void readFromParcel(Parcel in){
in.readStringArray(this.secret);
}
public static final Parcelable.Creator<Tgestion> CREATOR = new Parcelable.Creator<Tgestion>() {
@Override
public Tgestion createFromParcel(Parcel source) {
return new Tgestion(source);
}
@Override
public Tgestion[] newArray(int size) {
return new Tgestion[size];
}
};
}
