I have created LWUIT Tabs. I want to identify the enduser tab click event and need to place some logic?How to identify tab click Event?
Here my Code:
topnews = new Vector();
topstory = new Vector();
cinemanews = new Vector();
newsList = new List(topnews);
newsList.setScrollVisible(false);
newsList.setRenderer(new NewsListCellRenderer());
myNewsList = new List(topstory);
myNewsList.setScrollVisible(false);
myNewsList.setRenderer(new NewsListCellRenderer());
cinemaNewsList = new List(cinemanews);
cinemaNewsList.setScrollVisible(false);
cinemaNewsList.setRenderer(new NewsListCellRenderer());
Tabs tabs = new Tabs();
tabs.addTab("Topnews", newsList);
tabs.addTab("TopStory", myNewsList);
tabs.addTab("CinemaNews", cinemaNewsList);
tabs.addTabsFocusListener(new FocusListener() {
public void focusGained(Component cmpnt) {
//how to identify the enduser tab click event here?
}
}
thanks,
This doesn't seem to be directly supported, there is an option to add a tab with a RadioButton and bind a listener to a button but it would look badly in case of swiping which the tabs component support (dragging the tab in a touch device to the side).
Related
I'm building a nokia s40 app. I've set this app to be in full screen mode and I notice that when I set this full screen mode, I've lost the native back buttons.
I need to build a back button like the native back button (always on screen, in the bottom right side of the screen). I've tried it with a borderlayout and putting it on the south, but the text from the center container doesn't appears over this...and has transparent background.
If anyone has some sample code, it will be great.
this code simply located a button in the bottom right side of the screen. it's work well.
public void startApp() {
Display.init(this);
Form f = new Form();
//Create a ComponentGroup for all components except backbutton
final ComponentGroup cg = new ComponentGroup();
final Button backButton = new Button("BackButton");
// add this part to your code
f.addOrientationListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Dimension d = new Dimension(Display.getInstance().getDisplayWidth(), Display.getInstance().getDisplayHeight());
cg.setPreferredSize(d);
backButton.setX(Display.getInstance().getDisplayWidth() - backButton.getPreferredW());
}
});
//set CoordinateLayout to f
f.setLayout(new CoordinateLayout(Display.getInstance().getDisplayWidth(), Display.getInstance().getDisplayHeight()));
//Dimension d = new Dimension(Display.getInstance().getDisplayWidth(), Display.getInstance().getDisplayHeight());
cg.setPreferredH(Display.getInstance().getDisplayHeight());
cg.setPreferredW(Display.getInstance().getDisplayWidth());
cg.setLayout(new BorderLayout());
cg.addComponent(BorderLayout.NORTH, new Button("NORTH"));
cg.addComponent(BorderLayout.EAST, new Button("ESET"));
cg.addComponent(BorderLayout.WEST, new Button("WEST"));
cg.addComponent(BorderLayout.CENTER, new TextArea("sdsdsd"));
cg.setX(0);
cg.setY(0);
backButton.getStyle().setBgColor(0x2233ff);
backButton.setX(Display.getInstance().getDisplayWidth() - backButton.getPreferredW());
backButton.setY(Display.getInstance().getDisplayHeight() - backButton.getPreferredH() - f.getTitleArea().getLayoutHeight());
f.addComponent(cg);
f.addComponent(backButton);
f.show();
}
you can do like this to any form.
if you want back Button is showed in all forms you can write some OOP programming to do this.
it works well.
I have this very basic code which will be used to display tabs only when CheckMenuItem is selected:
CheckMenuItem toolbarSubMenuNavigation = new CheckMenuItem("Navigation");
toolbarSubMenuNavigation.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent e)
{
// Show or hide tabs
System.out.println("subsystem1 #1 Enabled!");
}
});
This is the code that I want to show or hide when the check box is selected:
TabPane tabPane = new TabPane();
Tab tab0 = new Tab("blue");
tab.setContent(new Rectangle(200,200, Color.BLUE));
Tab tab1 = new Tab("green");
tab.setContent(new Rectangle(200,200, Color.GREEN));
tabPane.getTabs().addAll(tab0, tab1);
Can you tell me how I can show the tabs only when the CheckMenuItem is true? And I want to do this dynamically.
Something like that can work
CheckMenuItem item = new CheckMenuItem();
Tab t = new Tab();
t.getGraphic().visibleProperty().bind(item.selectedProperty());
The item.selectedProperty() is true when is check, and false when it's not, so if you bind it to the visibleProperty() of your node it will visible when item is checked, and not visible when it's not checked
I recently started creating an app for blackberry. I want the app to display a screen (Let's say it's called "InfoScreen") but as I said i am still very new to this. What code will I have to use if I want the "InfoScreen" to be show when the button "buttonInfo" is clicked?
Here is some code I used to create the button that is might relevant to this question.
//Create button
ButtonField buttonInfo = new ButtonField("Information", Field.FIELD_HCENTER);
//Center buttons
VerticalFieldManager vfm = new VerticalFieldManager(Field.USE_ALL_WIDTH);
vfm.add(buttonInfo);
add(vfm);
What code will have to be used for both touch-screen devices and those that use the track-pad?
Thanks
Try this:
FieldChangeListener infoListener = new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
UiApplication.getUiApplication().pushScreen(new InfoScreen());
}
};
buttonInfo.setChangeListener(infoListener);
I am developing an ios app in xamarin .How to display a subview(i have used xcode IB for creating a subview) when a button is clicked.Then when i click the same button, again subview must be displayed.If button is pressed 3 times, 3 subviews must be displayed.
In a very common way it will be something like that:
yourButton.TouchUpInside += (object sender, EventArgs e) => {
var newView = new UIView();
// do some stuff with your view here
this.Add (newView);
};
I am creating an iPad app using MonoTouch 2.10.11 and I want to MonoTouch.Dialog to create some of the editable fields on a form. One of the fields will use a RadioGroup to allow the user to select from a list of options. The default behavior of M.T.D is display the selection list table over the existing table. This works great for the iPhone layout, but on this iPad form, the table is only on a small area of the form and the navigation bar looks odd on the middle of the form. I want to display the selection as a full screen modal and the user will hit a "back" button to go back the previous form with the selected item.
I created a new RootElement descendant class like this:
public class ModalRootElement : RootElement
{
public override void Selected (DialogViewController dvc, UITableView tableView, NSIndexPath path)
{
tableView.DeselectRow (path, false);
UIViewController uIViewController = this.MakeViewController ();
this.PrepareDialogViewController (uIViewController);
dvc.PresentViewController (uIViewController, true, null);
}
protected override void PrepareDialogViewController(UIViewController dvc)
{
base.PrepareDialogViewController(dvc);
UIButton button = UIButton.FromType (UIButtonType.RoundedRect);
button.Frame = new RectangleF (5, 5, 80, 20);
button.SetTitle ("back", UIControlState.Normal);
button.TouchUpInside += delegate {
DialogViewController d = dvc as DialogViewController;
(d.Root as ModalRootElement).TableView.ReloadData ();
d.DeactivateController(true);
};
dvc.View.AddSubview (button);
}
}
The table is implemented with the following code:
var _status = new ModalRootElement("Status", new RadioGroup("status", -1)) {
(new Section() {
new RadioElement("New", "status"),
new RadioElement("In process", "status"),
new RadioElement("Rejected", "status"),
new RadioElement("Deferred", "status"),
new RadioElement("Transferred", "status"),
new RadioElement("Unknown", "status"),
new RadioElement("Complete", "status")
})
};
var _odom = new EntryElement ("Odometer", "current odom", "");
_odom.KeyboardType = UIKeyboardType.DecimalPad;
_odom.TextAlignment = UITextAlignment.Right;
var root = new RootElement ("back") {
new Section("") {
_status,
_odom
}
};
_dvc = new DialogViewController(root);
_nav = new UINavigationController (_dvc);
_nav.SetNavigationBarHidden (true, false);
When I run the app, I can drill into the RadioGroup and make a selection. When I click the back button that I added to the view, the modal view closes and the RadioSelected properted of the ModalRootElement object is set correctly, but the text is not displayed.
If I change Selected() method to call dvc.ActivateController instead of PresentViewController, the ModalRootElement displays the correct text, but the RadioGroup table has the wrong size. Is there a way to get the RootElement to display the correct text when you use PresentViewController instead of ActivateController?
I think you need a Root.Reload() call.