As an iOS developer, I created a cell, the hierarchy is: cell-contentView-stackView，the stackView contains one label and one wkwebview.
Now text on the label can be announced by voiceover, but wkwebview content can't. whether I set wkwebView.isAccElement to true or false, it does not work unless I set wkwebview.accessibilityLabel to something.
I read this post: How can I enable VoiceOver for webview content on tableview and get no answer.
Can anyone help? thanks
I expect voiceover work on Wkwebview, it can announce web content
Related
I am working on the IOS application, related to voice over, my Question is : When accessibility voice over was enabled how can i get the swipe gestures left, right, top and down, what re the function for detecting these in swift?
First of all, you need to let VoiceOver know that about your view (or another element). So if you are in a view controller, this should work: self.view.isAccessibilityElement = true
Second, you need to let VoiceOver know that your view will handle user interactions on its own: self.view.accessibilityTraits = UIAccessibilityTraitAllowsDirectInteraction. After that your view should start getting gestures notifications.
Here's another relevant answer: https://stackoverflow.com/a/20712889/2219578
It isn't possible to catch the left, right, top and bottom VoiceOver gestures : I've seen neither a protocol nor a kind of notification for this.
However, you can detect a scrolling action and be aware of the element focus provided by VoiceOver.
I have a cell in my UITableView with a UIWebView. The problem is that if you swipe on the UIWebView you swipe throughout the internet page, and not the table view. Since the web view has a hight of 500, it is possible that the user is stuck in the web view. Does anyone have any ideas in how to solve the problem?
Beginning with iOS 5, there is a scrollView property on UIWebView, so you can just do the following on your web view:
webView.scrollView.scrollEnabled = NO;
webView.scrollView.bounces = NO;
Then you should be able to scroll just fine. No need to disable interaction on the web view, unless you don't want the user to be able to interact with it at all.
If the user does not need to interact with the webview, you can set webview.userInteractionEnabled to NO.
If they need to interact with it, but don't need to scroll, you can set webview.scrollView.scrollEnabled to NO
Either of those solutions should allow scrolling to pass through to the tableView.
If they need to scroll the webview, I'd suggest rethinking your UI. AFAIK, Apple advises against having nested scrollviews.
The app I am building for an iPad has multiple text fields. So I had to use a scrollview. I would like to display the scrollbar/s permanently so that the user knows there are some more fields at the bottom.
As far I'm aware, it's not possible to permanently show the scrollbar.
Apple recommends to flash the scrollbar using:
[theScrollView flashScrollIndicators];
I'm trying to create an app that will have an interface similar to the Mail app on the iPhone. When you view an email message on the built-in Mail app, it displays sender/receiver information in addition to the subject in an area before the message. I was thinking of using a WebView for the message portion, but I can't figure out a way to have some custom view appear above the WebView while still within the same ScrollView.
What is the best way to implement this? To me the best option seems to be generating the "custom view" at the top in HTML/CSS, and simply appending the message's HTML afterward. I've looked at trying to put a WebView with another view inside a ScrollView, but it seems to go against Apple's design guidelines.
Any ideas or suggestions would be great.
Thanks,
Thomas
I don't hink it is against Apple guidelines.
What I'd do in your case is the following.
First create the scroll view
Place inside it your fixed height header (with subject, etc...)
Then place inside the scrollview a webView with an y offset of your headers height.
After the webView is done loading call [webView sizeToFit]; (wich resizes the view trying not to crop subViews)
Maybe you'll have to set the y offset again (frame.origin.y=offset)
And then set the scrollview content size to the sum of the two heights:
scrollView.contentSize=CGSizeMake(width, headerView.frame.size.height + webview.frame.size.height);
I'm not really confident with what [webView sizeToFit] is going to do. I've read you can also use [webView sizeThatFits:CGSizeZero]; . It will apparently return the needed size for the webView.
The you would simply have to change the webviews frame size to the return value of that function and use the same contentsize statement as before.
Hope this helped
PS: I think it's a bad idea to use html as a replacement for views. It's much slower and it takes initial time to load. The only use I've found to it is for displaying formatted text.
i am trying to implement accessibility option in my book reader app. I have a slider(similar to ibooks) which is used for navigating between pages. i have seen this question posted by another user and implemented the same code in my app. Right now my slider is responding when i'm tapping on it. The voiceover is also speaking the label i have given in the code. But, the problem is that, i am unable to change the slider value and navigate to another page.. I dont know if it is the problem with my code or is it that i do not know how to replicate the gesture to change the value of the slider... Any help in this regard will be appreciated.... Thanku
Does the slider work with VoiceOver turned off?
If so, try swiping vertically up or down (top to bottom of display) after selecting the slider element with VoiceOver enabled.
Is it a UISlider, or something of your own devising? UISlider needs an actual vertical swipe once selected, and moves a pretty significant amount as a result — not a good experience for going to the next page.
If it's your own custom control, be sure you set UIAccessibilityTraitAdjustable.