Is it possible to change the "Back" button text in a NavigationItem? At present, the caption of the back button assumes the title of the previous layer in the navigation stack, which is expected.
However, the NavigationItem's LeftBarButtonItem can be changed using code such as this:
UIBarButtonItem backButton = new UIBarButtonItem("Back", UIBarButtonItemStyle.Plain, null);
myNewView.NavigationItem.SetLeftBarButtonItem(backButton, true);
This works and the back button is displayed as expected, but the button is a square and does not navigate back to the previous layer as expected. I'm guessing that the correct event needs to be assigned to it, but I have no idea what it should be.
How would one go about ensuring that the new UIBarButtonItem has the correct event and arrow shape?
Note: I have also tried re-using the `LeftBarButtonItem' as suggested in this SO question, but I still don't know how to customize the button caption. I am probably just missing the obvious.
Thanks!
Set the title on the previous viewcontrollers navigationitem. I answered this before and will look up the link.
Ah, yes: Separate title in NavigationBar and navigation buttons
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I am using fltk 1.3.2.
I have two widgets, one of them is Fl_Multiline_Output and other one is Fl_Button.
The button is a place on the the multiline_output.
When I click multiline_output, the button is disappeared.
I need to use always on top like speciality for my button.
It mustn't be hide.
Does anyone know fltk support this?
I have changed Fl_Multiline_Output to Fl_Text_Display, I put the text and deactivated it. Now, when I click Fl_Text_Display nothing is happen.
I changed to Fl_Text_Display because if I deactivate the Fl_Multiline_Output object, text color is changed. I chose Fl_Text_Display there is no problem with text color.
I have a long form, and the client have to scroll vertically the screen to see all fields.
But, every time one of those components with the property update=#form is fired, the screen get back to the top position.
So, the question is:
There is a way to keep the scroll bar in the same position after an update=#form ?
Important: The scroll bar back to the top only in the first update=#form, after that, the screen keeps the current position.
I am not sure if it's a bug or I am doing something wrong that is causing that behavior.
And yes, i really have to update the whole form
e.g.
<p:commandButton id="btnVerifyLogin" update="#form" value="Verify"
actionListener="#{demandController.VerifyLogin()} />
I had this issue before, where I had to update the whole form.
What I have learned that when I update the form containing the button that has been pressed (like your Verify button), the browser somehow loses the focus on that button and just scroll back to the top.
I came up with a workaround.
<p:commandButton id="btnVerifyLogin"
update="#(form :not(#formId\\:btnVerifyLogin))"
value="Verify"
actionListener="#{demandController.VerifyLogin()} />
Basically I update the form but not the button, this way the browser keeps the scroll as it is.
Others would suggest that onstart we can call var scroll = $(window).scrollTop(); in order to preserve our scroll position, and oncomplete we call $("html").scrollTop(scroll);, but this won't work since the oncomplete won't be triggered since the button is updated inside the form!
Again this will work only with Primefaces 4, and recently I avoid updating full forms, I prefer to use selectors.
Hope this helps.
When I'm testing my app on a mouse-driven device, I'm seeing a couple of odd highlight issues that I would like to try and resolve.
The first occurs when I call up the app bar, hover the mouse over a button (at which point the button goes grey) and then press Escape to dismiss the app bar. If I then call up the app bar again, the button has stayed grey, even if the mouse isn't over it, and remains in that state until I move the mouse over it and then away again.
I can't immediately see a property of the button that I can reset to clear that state when the app bar gets dismissed.
The other oddity I'm seeing is that sometimes the first item in the list on the page will get a box drawn around it:
This seems to happen when the app bar is being dismissed. I'm guessing that this is because the item is in a particular state that causes the box to appear but I'm not sure what state or how to clear it. The box does not appear during normal use of my app.
Thanks for any clarification or solutions you can provide.
I found a simple way to workaround this issue. In the code for Clicked/Tapped set Visibility of the button:
CreateNewDatabase.Visibility = Visibility.Collapsed;
CreateNewDatabase.Visibility = Visibility.Visible;
It will reset button state to Normal.
Hope this helps!
So, the issue is that the VisualState for the Button is being set to PointedOver, and then not being unset (because your mouse isn't leaving the bounds of the control and therefore triggering a PointerExited event). What this means is that you'll have to manually set the VisualState of the Button if you want it to change in this manner. You could do it on AppBar's Closed event. Basically, do a recursive check of all Children of the Content property of the AppBar using the VisualTreeHelper. Check to see if the Child is a Button. If it is, set its VisualState using VisualStateManager.GoToState().
I've also figured out what was causing the black box around the button - it is to indicate that the button has Focus.
The rather strange thing is that I'm not really sure why that specific button is getting focus or how a user is supposed to give focus to a button without it just randomly happening so, until I figure that out, I've decided to comment out the Focus state support from the Visual Manager XAML used in the default GridView item style.
I have a table listing some strings, and what I want is when I tap the add button on the navigation bar, a keyboard with a textField would jump up, so I can input a string in the textField, then when I tap the return key, the keyboard disappear as well as the textField, and the new string is added to the table.
I already make up a nib file with a toolBar containing a textField, and I just failed to go on.
How can I implement this idea? Use the inputAccessoryView? If so, that means the inputAccessoryView of the textField which belongs to the toolBar is gonna be the toolBar itself!
This seem kind of weird and I have not been able to make it work till now.
Or is there another way for this idea?
Thanks a lot!
I've solved the problems by using notification instead of inputAccessoryView.
There is a sample code in XCode called "KeyboardAccessory", and it gives a good example about using keyboard notifications!
Or custom a view with a tab, and set it as the textField's inputAccessoryView, that would also work!
I have attached a toolbar with a UITextField and UIButton to the keyboard when it becomes the first responder via the user taping inside the textfield
textField.inputAccessoryView = theToolbar;
Problem is, the toolbar disappears when the keyboard is dismissed, thus preventing any further input.
Any ideas on how to make the toolbar go back to the bottom of the screen rather than off it completely?
I'm thinking a delegate method might help but Im really not too sure. It seems once the inputAccessoryView always the inputAccessoryView :(
Cheers
The input accessory view is automatically dismissed with the input view (the keyboard, in this case). Generally you do not want to have an input accessory view in your view hierarchy. Instead, if you want your toolbar to scroll up when the keyboard is shown, you should follow the guidelines for Managing the Keyboard.
You could try using an additional toolbar that is offscreen as the inputAccessoryView, which could "fake" the appearance of what you are trying to do. Alternatively, have you tried adding the toolbar back to the bottom of the screen using
[self.view addSubview:theToolbar];
when the keyboard reaches the bottom of the screen? You can use keyboard notifications for this.