如何从Android上的Service调用主线程函数？

Question

I have Main class and it contains function isSyncAllowed . I start another service. How to call function isSyncAllowed from this service? It says:

Cannot make a static reference to the non-static method isSyncAllowed(Boolean) from the type Main

If I change type of that function to static and pass context , I come to the problem that startManagingCursor can not be static.

How can I fix it?

Upd. Here is the code of SyncService :

public class SyncService extends BroadcastReceiver {
...
    public void onReceive(Context context, Intent intent) {
    ...
    Boolean isDownloadAllowed = Kinobaza.isSyncAllowed(true);
    }

and here is the code of Main :

public class Kinobaza extends ListActivity {
    ...
    public static Boolean isSyncAllowed(Boolean showToasts) {
        ...
        Cursor notesCursor = mDbHelper.fetchAllNotes();
        startManagingCursor(notesCursor); // here is the error
    }
}

Answer 1

You are probably doing Main.isSyncAllowed(...) instead of main.isSyncAllowed(...) , where main is an object of class Main .

If you are inside an instance method of Main , then you can simply do isSyncAllowed(...) .

Edit - now that I see your code, you should probably pass isSyncAllowed via the Intent you give to the service. When you start the service:

Intent intent = /* however you were constructing your intent */
boolean syncAllowed = /* calculate syncAllowed by calling your existing method */
intent.putExtra("syncAllowed", syncAllowed);
    ...

and then in your service you can retrieve it:

boolean syncAllowed = getIntent().getBooleanExtra("syncAllowed", true);

Your service shouldn't need to call instance methods on your activities.