I've a UIWebview displaying a .rtf file. The lines of text are wider than the screen.
1) Is there a way to get the text to wrap around rather than going off the edge of the screen and requiring the user to scroll.
2) Is there a way to disable horizontal scrolling in the UIWebView.
Many Thanks
Code
If you want the content to fit inside the view, set it's scalesPagesToFit property to true:
webView.scalesPagesToFit = YES;
If you do that, the pages shouldn't be horizontally scrollable. If they are, you can fiddle around with the stuff in UIScrollView Reference because UIWebView is a subclass of it.
Related
I am trying to zoom a scroll box which is similar to the one here
http://www.quackit.com/html/codes/html_scroll_box.cfm
in a UIWebview.
Assume that I have set the above page as URL for my UIWebview. can I zoom inside the scrollbox ? I am able to zoom the entire webpage by setting the scalesPagesToFit = YES.
I tried setting the delegate of UIwebview subviews which are UIScrollViews to self and returning self.webview in viewForZoomingInScrollView. But I am not able to achieve it.
Is it possible to zoom a scroll Box or a scroll area in HTML page in UIWebview ?
I achieved zooming by handling the mouse move event in Javascript file and I am scaling the appropriate DIV. Now, the problem is that, I am not able to scroll the scaled content horizontally. My HTML page has position: fixed in CSS and I changed that to relative and tried giving overflow:auto and scroll. , overflow-x as scroll. But still the issue is not resolved
I have a UIScrollView that contains 2 UIImageViews. I turn on the pagination properties and am able to scroll vertical pages (480). Now I want to add another UIImageView that will act as separator between the images and keep the vertical scrolling height. Means that every time I'll scroll, I'll see the separator but stop on the full image. Thanks.
This UIView method might do the trick: hitTest:withEvent:See UIScrollView Custom Paging
I know that I asked a question a few minutes ago, but I want to make a few points clearer before asking for the community's help. I'm new to iOS development, close to finishing my first app. The only thing standing in my way is this UIScrollView. I simply do not understand it, and could use your help.
This is in the detail view controller of a drill-down app with a tab bar. I have approximately 8 fields (for things like phone numbers and such) drawing from a .plist. Obviously, those take up enough room that I could use a little extra real estate. I would guess that it needs to be about the size of two views vertically, but I do not understand how to allocate that sort of space to a UIScrollView. Some tutorials I have read say that you don't even need to define it in the header, which I doubt and do not understand. Additionally, I do not understand how to simply get the app to smoothly scroll up-and down only. Apple's examples have constant move cycles that flip between horizontal pictures.
I doubt it makes very much a difference, but I have an image that is in the background. I'm going to load the view on top of that.
My question is broad, so I don't expect you to take the time to sit down and write out all of the code for me (and I wouldn't ask you to). Just an outline of quick, helpful tips would help me understand how to get this view to load in the context of my project.
Many thanks!
It's fairly simple. Add a UIScrollView to your view. Add your fields and such to the scrollview. In viewDidLoad or somewhere similar, you need to set the contentSize on your scrollview. This is the "virtual" area that will be scrollable. This will generally be larger than the frame of the scrollview. In your case, you indicated it should be roughly double the width.
For instance, if you had a scrollview with a view inside, and you wanted to make sure the entire view is visible via scrolling:
self.scrollView.contentSize = self.contentView.frame.size;
//setting scrollview zoom level
self._scrollview.minimumZoomScale=0.5;
self._scrollview.maximumZoomScale=6.0;
self._scrollview.contentSize=CGSizeMake(320,500 );
you have to outlet scroll view in .h class and #property #synthesis this scroll view.then you can able to scroll up and down,if u want only vertical scrolling ,then u have to go to interface builder and uncheck the horizontal scrolling.
You can set a few settings for your scrollview to limit the scrolling to horizontal or vertical. A few important ones are:
// pseudcode here, start typing "[scrollView " then press escape to get a intelli-sense of all // the things you can set for the scrollview.
// values could be YES/NO or TRUE/FALSE, I can't remember which one but
// I think it's YES/NO. Once you start scrolling, the phone will determine
// which way you're scrolling then lock it to that direction
[scrollView setDirectionalLockEnabled:YES];
// when you slide the view, if enough of the next part of the view is visible,
// the scrollview will snap or bounce the scrollview to fit this new "page".
// think of swiping feature to navigate the iPhone home screens
// to show different "pages" of iphone apps
[scrollView setPagingEnabled:YES];
// as a safe guard, make sure the width of your scrollview fits snuggly with the content
// it is trying to display. If the width is more than necessary to display your table of
// data vertically, sometimes the scrollview will cause the
// horizontal scrolling that you don't want to happen and you get bi-directional scrolling
Just set the content size of UIScrollView after adding all the controls/button/textfields etc. for example you add 10 textfields in UIScrollview then content size of UIScrollView will be
lastTextField.frame.origin.y+lastTextField.frame.size.height+20; 20 is for margin.
That's it let me know if you want to know something more related to your app.
iphone, need to put many text boxes on the view, how to scroll down to view more content? I actually put buttons and labels on the ScrollView, but the scrolling doesn't work. Do I need to write any code for that, any example?
Thanks.
You need to set the contentSize property of the UIScrollView to something bigger than its frame size.
[aScrollView setContentSize:CGSizeMake(320, 1000)];
I am currently working on an application for a client, and they have made an odd request. The request involves putting a custom image as the indicator for the scrollview. I am not even sure if this is possible but if it is can you please let me know how one would go about doing that.
Thanks
UIScrollView streches a small, semi-transparent circle image to generate its scrollbars. You can find this image as the first subview of a UIScrollView:
UIImageView *circle = [scrollView.subviews objectAtIndex:0];
However, as I said this image is stretched, and as far as I can tell, only the alpha values are considered when drawing the scroll bars.
So for example if you're only interested in changing the top/bottom ends of the scroll bar, you can try to change this image. However, I doubt you'll be able to do anything interesting.
A possible solution that comes to mind, and this is only a theory, is to add a custom, transparent UIView on top of a UIScrollView. Then you can hide the default scroll bar (by using showsHorizontalScrollIndicator and showsVerticalScrollIndicator), pass the necessary touch events to the UIScrollView to scroll the content, and draw the scrollbars in your custom view.