Correct way to load dynamic content in wizard

[femosso]

In the sample code the AbstractWizardModel is being statically instantiated when MainActivity is created. Once this is done, the onNewRootPageList() callback is immediately triggered in the wizard model and I couldn't find a way to load the PageList with some dynamic contents.

The workaround I found for this is to make AbstractWizardModel class a inner class in MainActivity and have my dynamic content a global variable so I could access it from AbstractWizardModel. This generates a side effect since I'm no longer instantiating AbstractWizardModel class when the MainActivity is create. I'm instantiating it o onCreate() callback, so it is being called some time later in comparison with original code.

Is there an alternative way to load content in the form (PageList) dynamically?

[jppasa]

@femosso Late response, but in case you need it. I made a workaround, but this is not the best solution. Also, it is not dynamic in the sense of adding pages at any time.

I downloaded all the code and inserted it into my app's code. Then I had to resolve all issues (copy resources, etc.)

Then, I modified AbstractWizardModel the following way:

public AbstractWizardModel(Context context) {
    mContext = context;
}

public void startRootPageList() {
    mRootPageList = onNewRootPageList();
}

Then, my wizard model constructor:

public WizardModel(Context context, Content content) {
    super(context);
    this.content = content;
    super.startRootPageList();
}

Finally, onNewRootPageList callback:

@Override
protected PageList onNewRootPageList() {
    if (content != null) {
        PageList pageList = new PageList();
        // Add pages to pageList according to content
        return pageList;
    }
    return new PageList();
}

[lauksas]

Old post, still this answer can help someone. I got it resolved by moving the AbstractWizzardModel instantiation to the onCreate method on the Activity. Like below:

public class WizardActivity extends FragmentActivity implements
        PageFragmentCallbacks,
        ReviewFragment.Callbacks,
        ModelCallbacks {
     private AbstractWizardModel mWizardModel;
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mWizardModel = new ActivityWizardModel(this);
    }
}

With that change you can do: mContext.getString(R.string.your_string) in any place at you concrete model.

I hope that helps. PS: you can't load resource at that time because the method onCreate() do an eternal loop when you try to get the application context.