Question

I want to pass one or more variables between activities in android. One solution is to use global variables, and it is explained here:
Android global variable
which I repeat here:

---

You can extend the base android.app.Application class and add member variables like so:

public class MyApplication extends Application {

private String someVariable;

public String getSomeVariable() {
    return someVariable;
}

public void setSomeVariable(String someVariable) {
    this.someVariable = someVariable;
}
}

Then in your activities you can get and set the variable like so:

// set
((MyApplication) this.getApplication()).setSomeVariable("foo");

// get
String s = ((MyApplication) this.getApplication()).getSomeVariable();

---

I want to use this and set a global variable in one of my activities when an item on a ListView is pressed. So I have this code:

    lv.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view,
            int position, long id) {
          .
          .
          .

          ((MyApplication) this.getApplication()).setSomeVariable("foo");
        }

      });

However I get an error which says “The method getApplication() is undefined for the type new AdapterView.OnItemClickListener(){}”.

I would like to know what is the reason I get this error and how to fix it, or a better way of passing a variable from one activity to the other.

Thanks,

TJ

Answer 1

Inside an Anonymous Class you cant say this. u have to specifi the Class around the inner class.

like MyApplication.this.get..

when using:

class MyApplication { 
  lv.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view,
            int position, long id) {
          ((MyApplication) MyApplication.this.getApplication()).setSomeVariable("foo");
        }
 }

}

the “this.” inside an annoymous inner class refering to the inner class itself.