Sharing data between an activity and a class

Question

I have an activity MyActivity that holds a service class MyService. I would like the service to send String data to the activity, and then create a button using this data.
Following this post I created a static method in the activity.
The problem of course is that i can't use this in a static context.

public class MyActivity extends Activity {


    private MyService myService;


    public void onCreate(Bundle savedInstanceState) {

        setContentView(R.layout.main);
        myService = new MyService();

    }


    public static void connectMethod (String buttonName) {

        Button btn = new Button(this); // error
        btn.setId(i);
        final int buttonID = btn.getId();
        btn.setText(buttonName + buttonID);

    }
}





public class MyService {

    ...

    private void showButton (String data) {
        MyActivity.connectedMethod(data);
    }
}

read about "bound services" in android os – pskink Oct 12 '14 at 07:15 — pskink, Oct 12 '14 at 07:15

S.Thiongane · Accepted Answer · 2014-10-12T00:00:34.720

Two possible solutions to avoid your error:

public static void connectMethod (Context context, String buttonName) {

    Button btn = new Button(context); 
    btn.setId(i);
    final int buttonID = btn.getId();
    btn.setText(buttonName + buttonID);

}

// ...

public class MyService {

    private Context context;

    public MyService(Context context) {
        this.context = context;
    }
    ...

    private void showButton (String data) {
        MyActivity.connectedMethod(context, data);
    }
 }

Or create a static class field : private static Context context;

public static void connectMethod (String buttonName) {

    Button btn = new Button(context); 
    btn.setId(i);
    final int buttonID = btn.getId();
    btn.setText(buttonName + buttonID);

}

Sharing data between an activity and a class

1 Answers1