I am new to Xamarin and trying to create a simple page. I have scrollLayout and grid inside. In the grid I have a frame and some text in frame. I deployed it on my andriod but when i try to enlarge the screen with touch(two fingers) it doesnt enlarge the screen. I want user to enlarge the text and read. Any help would be appreciated please..
Scroll layout doesn't have the feature for zooming in/zooming out entire view. It just scrolls your content when not fitting screen height / width.
To achieve effect you want you need two things:
Pinch zoom gesture support (https://github.com/twintechs/TwinTechsFormsLib, http://www.mrgestures.com)
Label.ScaleTo or Label.FontSize properties which are controlled with your gesture.
Related
Is it possible to have a curved scrollbar like on WearableRecyclerView on ScrollView? How is it done?
Here is a reference to get you started.
To create a curved layout for scrollable items in your wearable app:
Use WearableRecyclerView as your main container in the relevant XML layout.
Set the setEdgeItemsCenteringEnabled(boolean) method to true. This will align the first and last items on the list vertically
centered on the screen.
Use the WearableRecyclerView.setLayoutManager() method to set layout of the items on the screen.
If you explore the document, you will be able to get in touch with the code snippet for customization of the scrolling.
For Circular Scrolling Gesture:
By default, circular scrolling is disabled in the
WearableRecyclerView. If you want to enable a circular
scrolling gesture in your child view, use the WearableRecyclerView’s
setCircularScrollingGestureEnabled() method.
Good morning,
I'm working with UIScrollView for the first time and I'm trying to make the height of the scroll as I have elements in my screen. In my attempt I can scroll through my View, but when I'm in portrait mode I have a lot of scroll and when I'm in landscape mode I have the exact scroll that I would have.
How can I make the scroll showing only my content? Because at the moment I set a height and the scroll is showing too much height in my portrait mode.
I will appreciate any help, because I have search some questions but I can't really go on with my project without that.
Thanks in advance.
I have bunch of images inside a UIScrollView and have a tap event setup on each image. When I try to make the image full screen it actually is cut off by the scroll view. I am trying to implement a Facebook style UIImageView where the image zoom in and takes over the full screen on tap.
Does anyone have suggestion on how to approach this cause the way I am doing the image is cropped to the size of the scroll view.
Well, usually you would disable clipping, but the scrollview relies on clipping to do its job so that won't work.
My suggestion would be to push a copy of the image above the scrollview, and animate that to full screen. You should be able to get the rect using convertRect:toView: and it would be pretty straightforward from there.
btw, Is there a reason not to use a tableView for this?
When tapped hide the image and add the image at the proper place in the scrollview superview and over the scrollview. Then animate it to take the full screen.
Facebook App style UIImageView is nicely implemented in below given source code, you can take a clue from this
https://github.com/michaelhenry/MHFacebookImageViewer
I'm trying to implement a grid view menu, with horizontal background scroll of three images triggered by swipe gesture, so only the background images are scrolled while icons remain still. I investigated AQGridView, GMGridView, OHGridView, but they seem to not include this feature, so I decided to implement my own grid view with custom buttons placed in grid formation. My doubts are how to implement the background image scroll. I have searched for different solutions, but I'm not able to figure out how to solve it.
Many thanks
If I understand your question correctly you could make a view with 2 subviews: a) the grid of icons (UIImageView) and b) a scroll view with your background images in paging mode (UIScrollViewController).
Just make sure your icons do not receive touches, so that the scrollview gets the touches.
If you want to make the icons tap-able, then it's a little more complicated; you could create an invisible layer on top and then manually handle the touches, which will get complicated. Or, what I would do, place the icons as subviews on the plain scrollview, and then move the icons in the equal and opposite direction that the scrollview is moving in to create the illusion that the icons are standing still, this will simplest to implement but is a bit of a hack. Mathematically speaking you want to apply a transformation to the scrollview and apply the opposite transformation to the icons which are in the scrollview's coordinate system so that in the global coordinate system (the screen) your icons do not move.
In my app I use a page control and a UIScrollView to page horizontally, I'd like to be able to enable vertical scrolling on each page. Now I know you can nest UIScrollViews in order to achieve this, there is however one problem in my project. Each of the pages uses a view controller consisting of a view, with a background image (different image for each page). This background image should not move while scrolling up and down.
Now what I want is the ability to have buttons, regular rect buttons, which I create in Interface Builder (since I want to be able to design and update the positions easily) and which then can be scrolled vertically.
So it should be like this:
You see a screen with a page-control on the bottom, above it an image with buttons over it. When you scroll sideways, you go to another page, again with an image (another one) and with different buttons. Now whenever you scroll vertically on a page, the buttons should be scrollable (so I can have a LOT of buttons on 1 page), but the image should maintain it's position.
So I figured, I just add another scroll view on top of the view with the background image. This works fine since I now have my buttons hovering over the background image and I have a separate nib file for each page including the buttons. But when I do it like this, the scrollview with the buttons becomes un-scrollable vertically. I don't know why this is happening, so could anyone suggest me how to achieve the wanted result?
I'd be really really grateful!
Thanks,
Fabian