Lauch an application with parameters

cop3rfi3ld · by **cop3rfi3ld** » Mon May 05, 2008 12:43 pm

Hi !

I have some problems with my application. I explain : in fact, i have some activities, linked with intents like that :

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

private void lancerCreerMulti() {
 
                Intent i = new Intent(Accueil.this, Creer_multi.class);
 
                startSubActivity(i, 0);
 
        }
Parsed in 0.031 seconds,  using GeSHi 1.0.8.4

The problem is that in the parent activity, there an ArrayList, I would to be accessible by the subActivity. I tried to do something like :

// In the parent activity Accueil.java

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

public ArrayList<String> getListeParties(){
 
                ArrayList<String> res = this.listeParties;
 
                if (this.listeParties.isEmpty()){
 
                        res=null;
 
                }
 
                return res;
 
        }
Parsed in 0.031 seconds,  using GeSHi 1.0.8.4

// In the subActivity

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

Accueil ac = (Accueil)this.getParent();
 
liste = ac.getListeParties();
Parsed in 0.033 seconds,  using GeSHi 1.0.8.4

but i get a null pointer exception.
So can I send my list in parameter with the Intent and get it back in the subActivity ?
Why my two classes cant communicate like that ?
How may I do it ?

Thank for your answers.......

Cop3rfi3ld

plusminus · by **plusminus** » Fri May 16, 2008 11:09 am

Hello cop3rfi3ld,

passing values (parameters) to other Activities is done by putting a Bundle to the Intent, like this:

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

                Intent i = new Intent();
 
                Bundle b = new Bundle();
 
                b.putString("KEY", "VALUE");
 
                i.putExtras(b);
Parsed in 0.036 seconds,  using GeSHi 1.0.8.4

Regards,
plusminus

Lauch an application with parameters

Lauch an application with parameters

Who is online