I have a UIScrollView added to my ViewController. And a View on top of that Scrollview. I have done the following:
Placed scroll view inside my original View and set top, left, right, and bottom constraints. Unchecking Constrain to margins.
Added a UIView within the scrollView (to hold my labels and such) and added the top, left, right, and bottom constraints, constrain to margins unchecked. And set equal widths to the original View
I then add an image view and three labels inside the view placed within the scroll view. And add top, left, right, bottom, and height constraints for them.
The scroll view works and my view does scroll and my labels and image view are centered but everything is very wide.
I am wondering how I make it so the View is not wide and I cannot scroll horizontally, only vertically.
Add an equal-widths constraint between the view inside the scroll view, and the root-level view of the view controller.
I just recently figured this out. Try doing this:
Make a scroll view
Put all of your labels and buttons into a stack view (If you don't know about stack views, check this out: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIStackView_Class_Reference/
Constrain the stack view's width and make sure the Allignment and Distribution are set to fill
Put the Stack View inside of the scroll view
Constrain the Scroll view to your hearts desire
Putting the labels and what you want in the scroll view should help with the width boundaries. Here's a picture of my successful scroll view. Hope this helps :)
In short, the contentsize is no effect while you use autolayout.
if you want you scrollview can scroll, uou should add a container inside scrollview and add origin subviews to the container.
For example, use snapkit (maybe some typos here):
you have a scrollview.set it's equal self.view's frame by autolayout
[import]then you add a containerView as scrollview's subview. set contraints:
make.edges.equalTo(scrollview) // mean its frame equal to scrollview
make.width.equalTo(self.view) // set width equal to self.view
make.height.equalTo(yourheight).priorityLow() // the actual height,if no changes,you can ingore .priorityLow()
add your sunviews to containerView,add the contraints must set to containerView,can't set to scrollview's.forexample,:
containerView.addSubView(myview)
myview.snp_makeConstraints { (make) -> Void in
make.left.equalTo(self.containerView)
make.top.equalTo(self.containerView)
make.right.equalTo(self.containerView)
make.height.equalTo(267)
}
Read this official doc -
Technical Note TN2154 UIScrollView And Autolayout.
Related
I am using a view inside a scrollview and inside the view, there are two labels with fixed width. and I want to make these labels auto-resizing in respect of height. For this I have given the height of the view >= but it's breaking the constraints. How can I achieve auto resizing content within scrollview.
While using scrollview it's mandatory to give the height of the elements inside scrollview. But if we want to make an element self height adjusting then we can give the minimum height with the priority 250
First, you need a content view inside the scroll that has constraints with the controller's view (equally both width and height) and top, leading, trailing, bottom with scroll view.
Then, add any subviews inside that content view. In your case is the label's bound view.
Something like:
The red one is the content of your scroll view
The gray one is bound label view
Just embed all these labels in stack view. And that's it.
I created a scrollview in storyboard with multiple views but the scrollview does not scroll. See the screenshot. I have a scrollview with images and another view embedded that spans outside the view area. I would like the scroll view to scroll down but it does not when I see the code in the simulator.
You need to add a UIView with 1000(or whatever you want) height constant to scrollView and make the UIView equal width to view
ScrollView needs to know its scrollable area, so you need to provide information about width and height for ScrollView's content:
width - you can create empty view (with height constraint equal to 1), place it inside scrollView, set its leading and trailing constraints to scrollView and set width constraint equal to main view. Then, scrollView will know that its scrollable area has the same width as screen.
height - you need to provide top and bottom constraints for first and last components inside scrollView (and all components should have specified height). I guess you forgot about setting bottom constraint for the last item.
I just add a scroll view to the storyboard, and added two views on the top and bottom, and making the bottom some part outside of the view to make it scrollable, but it doesn't work, what I have done wrong?
Inside you scrollview add a view with fixed height constrains and inside that view you can add your subview according to your design.
You can also set content size of the scrollview from storyboard.
If you are not using AutoLayout, then try to set scrollview.contentSize = bottomview.frame.origin.y+bottomview.frame.size.height This will make scrollview scrollable when device screen height is less than bottomViews bottom edge. In this make sure that your bottomview us immediate subview of scrollview.
For scroll in scrollview you need to give inner bound to scrollview with subview.
See image vertical scrolling with auto layout
Your problem may be you not give top and bottom inner bound to scrollview.
Like you added 2 view then for top view give top constraint and for bottom view give bottom constraints to scroll view.
Now you subviews height must be more then scrollview's height.
Scrollview need inter bounds (scrollview to it's subview) to scroll for vertical (top and bottom) and for horizontal (left and right).
I've been trying to create a UIScrollView for user registry but with no success. I'm using auto layout and all of the fields that go inside the scroll view are static. Because of the usual ambiguous height issue, I've added a UIView inside the scroll view, set the constraints to the margins of the scroll view and centered aligned it. After that I added all of the fields inside that Content View, in the storyboard.
The content fields have their constraints setup as you would expect, but when I get to the lowest field and set the bottom constraint to the bottom of the Content View then everything breaks.
I'm asked by Xcode to set the priority of some views, and when I do as is says, the Content View size stays the same and the views are shrunken.
I tried not to put the last bottom constraint and resize the Content View by code but the height is not resized as is should.
I'm looking for a good solution to do this in storyboards and auto layout.
Update: I added a bottom constraint with a low priority, but the content scroll view is not expanding to show all of the fields.
Add&Set ScrollView(UIScrollView)
Add&Set ContentView(UIView) with subviews
! Set ContentView Width equal to View Width
Set all subviews constraints
View1 should be tied to the top of the ContentView
View4 should be tied to the bottom of the ContentView
All SubView (View1, View2, View3, View4 ...) must have a height and distance between each other
P.s. In your case, if iOS > 9.0 you can replace ContentView with UIStackView
You are using auto layout so the size of the content view is determined by constraints. Follow the below steps to provide proper constraints:
Drag the Scroll View inside main view and provide constraints Top, Bottom, Leading and Trailing in align with Super View (Main View) as
per screenshot.
Take View which will contain your content and drag inside Scroll View. and provide the constraints Center X, Center Y, Top, Bottom,
Leading and Trailing in align with Scroll View as per screenshot
Put all the element inside content view which is a subview of scroll view and provide Top constraint relative to the element above
it, to make equal space between the elements (eg. label, button etc.)
(Make sure you provide required constraint for X-position)
Last element is "Register Account" button make sure you provide the Top Constraint relative to country and Bottom constraint relative to
superview (content view) and change the priority for Top or Bottom
constraint as per screenshot, otherwise it gives error.
I have a view controller with a scrollview.
The scrollview has a sub View (content view) which is a view I have copied from another VC. I cannot get the scroll to work, I have tried:
Set constraints of scrollview against the container (pinned top/bottom/sides =0)
Setting Horziontal and vertical spacing of Content view against the scrollview which also didn't work
Set the content view to superview Leading/Trailing space to container margin, Top space to top layout guide and Bottom Space to bottom layout guide - still no scroll
Have also tried to set the scrollview size in viewdidload :
scrollView.scrollEnabled = true;
scrollView.contentSize = contentView.frame.size;
And no scroll.
I am possibly missing something basic here but although have tried numerous tutorials on line I can't get my head around using scrollview.
Pop up when dragging content view to scroll view
Your content view is not embedded in your scroll view.
to Scroll UIScrollView you need following Steps
pin UIScrollView with its SuperView from all four side Top, Left, Bottom, Right
Add a contentView (UIView) in ScrollView and pin it with UIScrollView with 0 margin from all four sides. also add equal width constraint.
add subviews to contentView make sure all view pinned with constraint from top bottom & also add Height Constraint for subviews.
no need to set any property or content size in code.