Question

So how can I pass a function as a parameter to another function, for example i want to pass this function:

public void testFunkcija(){
    Sesija.forceNalog(reg.getText().toString(), num);
}

in this:

    public static void dialogUpozorenjaTest(String poruka, Context context, int ikona, final Method func){
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
            context);
        alertDialogBuilder.setTitle("Stanje...");
        alertDialogBuilder
            .setMessage(poruka)
            .setIcon(ikona)
            .setCancelable(true)                        
            .setPositiveButton("OK",new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog,int id) {
                    //here
                }
              });

        AlertDialog alertDialog = alertDialogBuilder.create();
        alertDialog.show();
}

Answer 1

You can use a Runnable to wrap your method:

Runnable r = new Runnable() {
    public void run() {
        Sesija.forceNalog(reg.getText().toString(), num);
    }
}

Then pass it to your method and call r.run(); where you need it:

public static void dialogUpozorenjaTest(..., final Runnable func){
    //.....
        .setPositiveButton("OK",new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int id) {
                func.run();
            }
          });
}