我正在尝试在 3 种形式之间移动。1个是主要形式，2个是其他简单形式。我在软键中有命令，但它们不起作用...
下面是我的代码...
public class checkOutComponents extends MIDlet implements ActionListener
{
private Form appForm;
private Form f1;
private Form f2;
Command GoTof1 = new Command("GoTof1");
Command GoTof2 = new Command("GoTof2");
Command GoToMainForm = new Command("GoToMainForm");
public void startApp()
{
Display.init(this);
appForm = new Form("Check These Components!! ");
appForm.setLayout(new BorderLayout());
appForm.addCommand(GoTof1);
appForm.addCommand(GoTof2);
appForm.addComponent(BorderLayout.CENTER, formContainer);
appForm.show();
}
public void pauseApp()
{
}
public void destroyApp(boolean unconditional)
{
}
public void actionPerformed(ActionEvent event)
{
Command eventCmd = event.getCommand();
Form f = Display.getInstance().getCurrent();
boolean sentido = false;
if (eventCmd == GoTof1)
{
sentido = true;
Image i1 = null;
try
{
i1 = Image.createImage("/hello/1.jpeg");
}
catch (IOException ex)
{
ex.printStackTrace();
}
Label lab1 = new Label(i1);
f1.addComponent(lab1);
f1.addCommand(GoTof2);
f1.addCommand(GoToMainForm);
f.setTransitionOutAnimator(Transition3D.createCube(300, sentido));
f1.show();
}
else if (eventCmd == GoTof2)
{
sentido = false;
Image i2 = null;
try
{
i2 = Image.createImage("/hello/2.jpeg");
}
catch (IOException ex)
{
ex.printStackTrace();
}
Label lab2 = new Label(i2);
f1.addComponent(lab2);
f1.addCommand(GoTof1);
f1.addCommand(GoToMainForm);
f.setTransitionOutAnimator(Transition3D.createCube(300, sentido));
f2.show();
}
else if(eventCmd == GoToMainForm)
{
appForm.showBack();
}
}
}
请帮助解决这个问题。在此先感谢和问候，斯瓦蒂