How to implement something like a wizard screen? - lwuit

Question

I want to place a "Next" button which , when clicked , will display another group of components ; and I want also to place a "Previous" button which , when clicked , then display the previous group of components. How to achieve that ?

Answer 1

I recently implemented forms for data entry. Typically i have a wizard class that holds all the forms in the wizard, so i can easily navigate back and forth between them. And when i call a new form, i pass along the object of the wizard.
Below is my wizard, with implementation omitted.
public final class ReportWizard {
public static ReportWizard instance = null;
Form parent = null;
Form titleForm = null;
Form budgetForm = null;
Form iconForm = null;
final Report reports[] = new Report[20];
public ReportWizard(Form parent) {
this.parent = parent;
this.instance = this;
}
void getTitle() {
AddReportForm reportForm = new AddReportForm(parent, this);
reportForm.showReportForm();
titleForm = reportForm;
ImageListPicker getIcon = new ImageListPicker(titleForm, reports, this);
iconForm = getIcon.imageListForm;
}
void getIcon() {
iconForm.show();
}
public void cancelWizard() {
titleForm = null;
iconForm = null;
budgetForm = null;
instance = null;
parent.show();
parent = null;
System.gc();
}
}