public boolean dispatchEvent(
Component component, String componentName, String eventName, Object[] params) {
// when nextButton.click
if (component.equals(nextButton) && eventName.equals("Click")) {
index = index + 1;
if (index == questions.size()) {
index = 0;
}
questionLabel.Text(questions.get(index));
image.Picture(imageFiles.get(index));
// blank our resultLabel and answerTextBox
resultLabel.Text("");
answerTextBox.Text("");
return true;
} else
// when submitButton.click
if (component.equals(submitButton) && eventName.equals("Click")) {
if (answerTextBox.Text().equals(answers.get(index))) {
resultLabel.Text("CORRECT!");
} else {
resultLabel.Text("INCORRECT");
}
return true;
} else return false;
}
protected void $define() {
questions = new ArrayList<String>();
questions.add("Which US President created the 'New Deal'?");
questions.add("Which US President normalized relations between the US and China?");
answers = new ArrayList<String>();
answers.add("Roosevelt");
answers.add("Carter");
imageFiles = new ArrayList<String>();
imageFiles.add("roosChurch.gif");
imageFiles.add("carterChina.gif");
this.AlignHorizontal(ALIGNMENT_CENTER); // doesn't seem to work
this.Title("US Presidents Quiz");
headerLabel = new Label(this);
headerLabel.FontSize(24);
headerLabel.Text("Test your knowledge of US Presidents");
image = new Image(this);
image.Width(this.LENGTH_FILL_PARENT);
image.Picture(imageFiles.get(0));
questionLabel = new Label(this);
questionLabel.Text(questions.get(0));
nextButton = new Button(this);
nextButton.Text("Next");
hArrangement1 = new HorizontalArrangement(this);
hArrangement1.Width(LENGTH_FILL_PARENT);
answerTextBox = new TextBox(hArrangement1);
answerTextBox.Width(LENGTH_FILL_PARENT);
answerTextBox.BackgroundColor(this.COLOR_LTGRAY);
answerTextBox.Hint("enter answer (last names, all caps)");
submitButton = new Button(hArrangement1);
submitButton.Text("Submit");
resultLabel = new Label(this);
resultLabel.Text("");
EventDispatcher.registerEventForDelegation(this, "Next", "Click");
}