I have wizard and inside the wizard i have a checkbox and a text associated with the checkbox . While testing for accessibility i found that the VoiceOver does not read the text associated with the checkbox , it is read as "(un)checked checkbox". Have i missed something while adding the definition for the checkbox ?
Assuming these are SWT controls you can add an accessibility listener to set the text to be read:
control.getAccessible().addAccessibleListener(new AccessibleAdapter()
{
#Override
public void getName(final AccessibleEvent event)
{
event.result = "text for the control";
}
});
More on Eclipse Accessibility here
Related
We have designed a custom popup with Content View, which will be invoked in a content page. When clicked on hardware back custom popup is getting closed, because Content View as no property to hand hardware back button Pressed. OnBackButtonPressed() is used only for Content Page. Can I get any solution to handle hardware back for content view to stop popup from closing.
To manage hardware back button you must override OnBackPressed() method in MainActivity class, in android project. In your popup you may have some property to check if can be closed and then check it from MainActivity class.
public override void OnBackPressed()
{
if (CheckIfCanBePressedMethod())
{
// back pressed will be ignored
// code here
}
else
{
// default behavior
base.OnBackPressed();
}
}
Set the flag on Contentpage when you open popup make the bool as true.
bool isShowPopup = false;
public override void OnBackPressed()
{
if (!isShowPopup)
{
base.OnBackPressed();
}
}
I am trying to create a custom control for webview, i am trying to get a checkbox inside a webview Reason :- we have a bunch of text to be displayed and unless the user reaches the end of the scroll he cannot move to the next page and at the end of the scroll there is a checkbox where user has to check the the checkbox and then he can process. here i have tried putting the checkbox and webview inside the stacklayout but the issue is webview have its own scroll bar and and stacklayout scroll bar does not work when a user try to scroll as the webview scroller scrolls out also when i try to close the Webview Page with back button the webview gets close and not the page
i am not sure what approach should i apply here.
i am getting my html data from my webapi.
anyone with some solution would be appreciable
here is my custom renderer which i have wrote but the piece missing here is how can i add another xamarin control inside this
public class CustomPdfViewRenderer : WebViewRenderer
{
public CustomPdfViewRenderer(Context context) : base(context)
{
}
protected override void OnElementChanged(ElementChangedEventArgs<WebView> e)
{
base.OnElementChanged(e);
if (Control != null)
{
Control.Settings.BuiltInZoomControls = true;
Control.Settings.DisplayZoomControls = false;
Control.Settings.LoadWithOverviewMode = true;
Control.Settings.UseWideViewPort = true;
}
}
}
You can try the following approach:
Add checkbox to HTML
When the user check checkbox call some JavaScript function
When JavaScript function is called, call C# function (Xamarin) which will enable the user to process to the next page (or some other Xamarin side stuff)
Here is how you can call C# function from JavaScript :HybridWebView
I created WinForm component and I want to replace some properties of my component when developer copy and then paste(not when copy but when paste) component from clipboard at design time.
VisualStudio creates new copy of component and assign properties so it became copy of the source component.
I need to replace some properties on paste operation depending on the selected component.
It is very similar to standard Copy/Paste operation with Control component. When designer change Parent of component if developer select other container (like Panel) before Paste Control.
I think that code to perform it should be somewhere in my ComponentDesigner class.
I explored ComponentDesigner methods but can't find any methods that controls clipboard operations.
You can override the OnParentChanged method of your component, which is executed when the component is pasted onto the form. Then test the DesignMode property to make sure you are in design mode:
public class MyComponent : Label
{
protected override void OnParentChanged(EventArgs e)
{
if (DesignMode) {
// Change properties as desired.
Text = "Design";
}
base.OnParentChanged(e);
}
}
When the component is dropped from the Toolbox, this code is not executed. (I can't explain why, but it happens to be exactly what we need.)
If you derived your component from System.ComponentModel.Component, you can override the property Site; however, this will require some more logic to check whether the component has been pasted.
public override ISite Site
{
get {
return base.Site;
}
set {
base.Site = value;
if (value?.Container is IDesignerHost dh &&
dh.TransactionDescription == "Paste components") {
MessageBox.Show("Pasted");
}
}
}
But probably the transaction description is localized, because it is the text that you see in the drop-down of the Undo button on the toolbar of Visual Studio after having pasted the component.
I was just wondering whether it is possible to display my options menu to be displayed when I click on a image. Now I have displayed my options menu when the menu button is clicked. But I would like to display it when the user clicks on my imageView too. Is this possible?
I found this to be so simple at last.
imageView.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
openOptionsMenu();
}
});
I'm new to creating Silverlight applications. I have inherited a code-base that I've been told is using Prism. Based upon what I've seen in the code-base, this looks to be true. My problem is, I am just trying to open a dialog window and close a dialog window.
To open the dialog window, I'm using the following:
UserControl myDialog = new MyDialog();
IRegion region = myRegionManager.Regions["DIALOG_AREA"];
IRegionManager popupRegionManager = region.Add(myDialog, null, true);
region.Activate(myDialog);
The dialog I have designed appears. It has two buttons: "OK" and "Cancel". When a user clicks on of these dialogs, I want to close the dialog. My problem is, I have no idea how to do this. Because the dialog is not a ChildWindow, I cannot call this.Close(). But, when I change MyDialog to a ChildWindow, it is wrapped in some custom window chrome that i can't figure out how to get rid of.
How do I close a dialog in Prism? Thank you!
Instead of putting in a different region, you should make your ViewModel call a service where you call your dialog window.
public MainPageViewModel(IMainPage view,
ILoginBox loginBox )
: base(view)
{
this.view = view;
this.loginBox = loginBox;
}
public interface ILoginBox
{
void Show();
}
remember to use the IOC container and declare on your ModuleClass:
protected override void RegierTypes()
{
base.Container.RegisterType<ILoginBox , LoginBox>();
}
I hope it helps.
If you are still looking for an example, check:
another Stackoverflow sample