My GUI application has two views, First view has a ListBox control - Derived from CCoeControl - and from this object I want to switch to the second view, How can I do this ?
In other words, When user click ListBox Item ...the second view appears.
Assuming that your 'views' are derived from CAknView.
Code From this link
const TUid KDemo1ViewId = { 1 }; // UID of the first view
AppUI()->ActivateLocalViewL(KDemo1ViewId); // activate view 1
Also find these links very useful.Getting a pointer to AppUI
Getting a Pointer to a View
Edit :
CYourApplicationAppUi* appui = (static_cast<CYourApplicationAppUi*>(iEikonEnv>AppUi()));
// Get the view you want CSomeView* view = (CSomeView*)appui->View(TUid::Uid(ESomeViewId))
Related
I have a view-based NSOutlineView with a dataSource/delegate model instead of binding to a tree controller (I want control over the insert/update animations).
I'm replacing an item in my model and would like to update that specific row in the outline view without having to call reloadData().
I cannot get this to work. Either the item does not update at all or the item's expanded state doesn't update. There seems to be some caching being done inside of NSOutlineView according to this, but even with these suggestions, I could not get it to work.
What I have:
(1) The outline view represents a folder structure
(2) At first, there is a singe file:
(3) The file is then replaced with a folder item:
// Model update
let oldFileItem = rootItem.children.first!
rootItem.children.remove(at: 0)
rootItem.children.append(Item(title: "Folder", children:[], isExpandable:true))
Expected result:
Actual result (reloadItem):
outlineView.reloadItem(oldFileItem) // I kept a reference
Icon and title reloaded, but note that the expansion triangle is missing.
I can somewhat understand that reloadItem() might not work in this case, because the old item is not part of the data model anymore. Strangely enough, the item's title and icon update, but not the expansion state.
Actual result (reloadData(forRowIndexes:columnIndexes:):
outlineView.reloadData(forRowIndexes: IndexSet(integer:0), columnIndexes: IndexSet(integer:0))
No effect whatsoever. This is the one that I would have expected to work.
Actual result (remove/insert):
outlineView.removeItems(at: IndexSet(integer:0), inParent: rootItem, withAnimation: [])
outlineView.insertItems(at: IndexSet(integer:0), inParent: rootItem, withAnimation: [])
No effect whatsoever.
The docs say about removeItems(): "The method does nothing if parent is not expanded." and isExpanded does indeed return false for the root node, although its children are visible. Is this special behavior for items that are direct children of the root node? What am I missing here?
For reference, my data model:
class Item:NSObject {
var title:String
var children:[Item]
var isExpandable:Bool
init(title:String, children:[Item], isExpandable:Bool) {
self.title = title
self.children = children
self.isExpandable = isExpandable
}
}
For reference:
It turned out to be an issue with how I used the API. NSOutlineView.removeItems/insertItems expect nil for the inParent parameter for the root item. I was handing in the actual root item. Using nil instead of the root item solved the problem.
i am doing cross application navigation from App 1 to another application by passing parameters.
in target application i have Smart Filter bar. i am filtering using "beforeRebindTable" event in smart Table.
my requirement is while i am navigating to target application i want smart Filter bar's "GO" button gets clicks automatically. so that i can view my filtered data on Smart Table without clicking anything.
regards,
Urvish
i have tried
this._oFilterBar._oSearchButton.sId.click() in onInit();
but it is giving me an error.
var b = E.getParameter("bindingParams");
if (this.onCreate().InspectionLot[0] != "" || this.onCreate() != "")
{
var oFilter = new sap.ui.model.Filter("InspectionLot",
sap.ui.model.FilterOperator.EQ, this.onCreate().InspectionLot[0]);
b.filters.push(oFilter);
}
you can enable the automatic data request in the smarttable by using the property
enableAutoBinding="true"
you can also rebind the Table in the on route matched event
thisgetView().byId("YourSmartTable").rebindTable();
In RadListView, is it possible to scroll to a specific y-position.
The problem is if I navigate to another page from a RadListView page and then come back - it initializes to the top of the listview. I would prefer to the same y position the user was at before navigating to another page.
I think there's a scroll-to-item method - but that's not necessarily the same y position.
You can cache your index using observable ViewModel and pass it when needed (in this case on the loaded event for your list - that is when the users will return back to the list page and the list will load)
e.g. TypeScript
page.ts
export function onListLoaded(args: RadListwModule.ListViewEventData) {
list = <RadListwModule.RadListView>args.object;
if (list.items) {
list.scrollToIndex(roversViewModel.get("cachedIndex"));
}
list.refresh();
}
export function onItemTap(args: RadListwModule.ListViewEventData) {
var tappedItemIndex = args.itemIndex;
// "cache" the index of our tapped item
roversViewModel.set("cachedIndex", tappedItemIndex);
// navigate to details page or do what you want to do on itemTap
frame.topmost().navigate(navEntry);
}
page.xml
<lv:RadListView items="{{ dataItems }}" loaded="onListLoaded" itemTap="onItemTap">
Also give your cachedIndex initial value of 0 for the first time the list is loaded.
Example based on this POC app .
Note that is not exactly the same as scroll-to-the-exact-y-position but you can modify the logic and scroll further to the exact position with getting the cells relative position offset.
I've a really simple UI with a single NSPopUpButton. Its selectedIndex is bound to an int value ViewController.self.my_selection. As soon as I change the selection from the UI (i.e. a select the third item of the NSPopUpButton) I see that my_selection value changes. So far so good, what I'm trying to obtain is the opposed direction though. I want to change the my_selection value programmatically and see the NSPopUpButton selecting the item a the index that I've defined in my_selection. I erroneously supposed that behaviour was the default behaviour for bindings...
This is what I'm obtaining now:
NSPoPUpButton ---> select item at index 2 ----> my_selection becomes equal to 2
This is what I want to achieve (keeping also the previous behaviour)
my_selection ---> set value to 3----> NSPoPUpButton selected index = 3
Without a bit more info (see my comment) it's hard to see exactly what you're doing wrong. Here's how I got it working: First, create a simple class...
// Create a simple class
class Beatle: NSObject {
convenience init(name: String) {
self.init()
self.name = name
}
dynamic var name: String?
}
Then, in the AppDelegate I created a four-item array called beatles:
dynamic var beatles: [Beatle]?
func applicationDidFinishLaunching(aNotification: NSNotification) {
beatles = [Beatle(name: "John"),
Beatle(name: "Paul"),
Beatle(name: "Ringo"),
Beatle(name: "George")]
}
In Interface Builder I set things up so that this array provides the pop-up with its content:
This class also has a selectedIndex property that is bound to the pop-up button's selectedIndex binding - this property provides read-write access to the pop-up button's selection:
// Set the pop-up selection by changing the value of this variable.
// (Make sure you mark it as dynamic.)
dynamic var selectedIndex: Int = 0
In Eclipse E4 (Luna), using the application model to create parts, handlers, commands, handled menu items etc, (these are not created programatically). I have a toolbar. This contains a sub-Menu item called "Filter" that contains another sub-menu of two filters. The two filters are two Handled Menu Items which are set up as "Radio" Buttons.
When I select the appropriate in the UI of my running app from the selection, the Radio button switches just fine to the selected Item. However I would like this selection to update (deselecting one Radio button and selecting the appropriate radio button of the handled menu item) when my ViewPart changes through other UI selection. Currently my ViewPart updates, but the Radio buttons are on the same previous selection through the UI.
Is there a way in which I get access both Handled Menu Item's IDs and set the selection (one to false, the other to true) when the viewer is updated.
Image of design is attached below:
Hierarchy of the application model is as follows:
Thanks in advance,
Marv
You can use the model service to find menu items. Use something like:
#Inject
EModelService modelService;
#Inject
MApplication app;
List<MMenuItem> items = modelService.findElements(app, "menu item id", MMenuItem.class, Collections.emptyList(), EModelService.IN_MAIN_MENU);
Once you have the MMenuItem you can call the setSelected(boolean) method to change the selection.
To find a menu item which is in a Part menu use:
modelService.findElements(app, "menu item id", MMenuItem.class, Collections.emptyList(), EModelService.IN_PART);
(IN_PART argument instead of IN_MAIN_MENU).
You could also specify the MPart rather than the Application as the first argument to findElements which may speed up the search.
For menus as a child of a Tool Bar Item it appears that the model services cannot find these directly. However you can find the Tool Bar Item and look at the menu yourself:
List<MToolItem> items = modelService.findElements(app, "tool bar item id", MToolItem.class, Collections.emptyList(), EModelService.IN_PART);
MToolItem item = items.get(0);
MMenu menu = item.getMenu();
List<MMenuElement> children = menu.getChildren();
... search menu elements
I solved this by starting with MPart PartID and drilling down to the HandledMenuItems on which I wanted to set the Radio Button selections, then setting the selection property for each individual HandledMenuItem.
This can probably be refactored to be more concise, but I've left the code with each step to have the solution easier to read.
BTW, in every instance / combination of the EModelService methods, the list returned a size of 0. So I'm not certain if that will work for what I'm trying to achieve. The following does work, although I'm not certain it is the most efficient means.
I hope this helps others.
// Get view part
MPart viewPart = _partService.findPart("part_id");
// get list of all menu items from the Part
List<MMenu> viewPartMenu = viewPart.getMenus();
// Get list of ViewMenus from viewPartMenu there is only one View Menu so it will be index 0
MMenu viewMenu = viewPartMenu .get(0);
// Get list of MMenuElements from the viewMenu - the children in the view menu
List<MMenuElement> viewMenuElements = viewMenu.getChildren();
// This gets me to the 2 HandledMenuItems
// Upper Most HandledMenuItem Radio Button is at viewMenuElements index 0. This is cast to MHandledMenuItem
MHandledMenuItem upperHandledMenuItem = (MHandledMenuItem) viewMenuElements.get(0);
// Set Selection
upperHandledMenuItem.setSelected(false);
// Lower Most HandledMenuItem Radio Button is at viewMenuElements index 1. This is cast to MHandledMenuItem
MHandledMenuItem lowerHandledMenuItem = (MHandledMenuItem) viewMenuElements.get(1);
// Set selection
lowerHandledMenuItem.setSelected(true);