I want to put collection view inside tableview cell. Every tableview cell contains 2 collectionviewCell. Let say I have 8 pic in my data model, I want the collection view looks like the image. How to do this?
Instead Of Using Collection View inside tableview , Use only collection view with vertical scroll and in the method
#pragma mark ------------Collection View Delegates-----------------
override func numberOfSectionsInCollectionView(collectionView:
UICollectionView!) -> Int {
return 1
}
override func collectionView(collectionView: UICollectionView!,
numberOfItemsInSection section: Int) -> Int {
return 4
}
override func collectionView(collectionView: UICollectionView!,
cellForItemAtIndexPath indexPath: NSIndexPath!) ->
UICollectionViewCell! {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier,
forIndexPath: indexPath) as !MyCollectionViewCell
// Configure the cell
let image = UIImage(named: Images[indexPath.row])
cell.imageView.image = image
return cell
}
func collectionView(collectionView: UICollectionView,
layout collectionViewLayout: UICollectionViewLayout,
sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
return CGSizeMake(_collectionViewToAddImages.frame.size.width/2, _collectionViewToAddImages.frame.size.height/2);
}
In this way you will have view like this, just add the pading and you will get the results
Related
I'm trying to put some images with horizontal scrolling in a tableview cell, so I use a collectionview, I put it into the cell, and everything works except the cell height. I've chosen the cell height to custom in storyboard, and changed the cell height with code too, but it still doesn't work. I'm a rookie, I can't find where the problem is, please help me, thank you guys!
1.I want to change the cell height
2.Stroyboard
class HomePageTableViewController: UITableViewController {
var ImageArray = [String]()
override func viewDidLoad() {
super.viewDidLoad()
ImageArray = ["Calendar.png","Calendar.png","Calendar.png","Calendar.png","Calendar.png"]
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return ImageArray.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "BannerCell") as! BannerTableViewCell
return cell
}
override func viewWillAppear(_ animated: Bool) {
tableView.estimatedRowHeight = 100
tableView.rowHeight = UITableViewAutomaticDimension
}
}
extension HomePageTableViewController: UICollectionViewDelegate,
UICollectionViewDataSource {
func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return ImageArray.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath)
-> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "BannerCollection", for: indexPath) as! BannerCollectionCollectionViewCell
cell.BannerImage.image = UIImage(named: ImageArray[indexPath.row])
return cell
}
}
You probably need to set the collectionviewcell size such as the following:
extension HomePageTableViewController: UICollectionViewDelegateFlowLayout {
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
// Return the cell size
let cellSize = CGSize(width: collectionView.bounds.width, height: collectionView.bounds.width * (ratioToUse))
return cellSize
}
}
I've done something similar where I'm using a collectionview to scroll horizontally but I'm using the full width for each cell and calculating the aspectratio. However, you'll need to modify this for the size you want.
I had to do some tricks elsewhere to size the collectionview itself as well.
I would try this first then, if you're still having problems, post an image of what it looks like.
Update #2:
If you are using AutoLayout, you shouldn't need to do this but you can set the height yourself using the following:
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
<#code#>
}
Update #3:
I just some testing with this. You should put a height constraint on your collectionview and that should make the tableviewcell resize appropriately. You shouldn't need "heightForRowAt" as I mentioned above. AutoLayout should handle this for you.
Try to change the content mode of the UIImageView to aspect fit. It might work.
Also i need to have circular scrolling enabled for that collection view.
Can anyone please help me out?
First of all drag collection view in your respective ViewController and then select scroll direction as Horizontal in activity inspector.
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAtIndex section: Int) -> CGFloat {
return collectionView.frame.size.width/2
}
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
return CGSizeMake((collectionView.frame.size.height) , (collectionView.frame.size.height))
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return img_Arr.count
}
// make a cell for each cell index path
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
// get a reference to our storyboard cell
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell3", forIndexPath: indexPath) as! ImageCaptureCell
cell.CapturedImage.clipsToBounds = true
cell.contentView.frame = cell.bounds
let capt = UIImage(data:img_Arr[indexPath.row] as! NSData,scale:1.0)
cell.CapturedImage.image = capt
return cell
}
// MARK: - UICollectionViewDelegate protocol
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
// handle tap events
print("You selected cell #\(indexPath.item)!")
}
func collectionView(collectionView: UICollectionView, didHighlightItemAtIndexPath indexPath: NSIndexPath)
{
let cell = collectionView.cellForItemAtIndexPath(indexPath)
//cell?.backgroundColor = UIColor.redColor()
}
// change background color back when user releases touch
func collectionView(collectionView: UICollectionView, didUnhighlightItemAtIndexPath indexPath: NSIndexPath) {
let cell = collectionView.cellForItemAtIndexPath(indexPath)
// cell?.backgroundColor = UIColor.yellowColor()
}
Additionaly give search bar on top and connet to the table delegate
I have an UIViewController, which contains UIScrollView, which contains a few elements, including UICollectionView. UICollectionView is used to display N buttons in fixed frame. UICollectionView scrolling is disabled. Still, my UIScrollView scrolls not as smoothly as it scrolls without UICollectionView. What my be the problem? Does it have something to do with reusable cells?
code:
func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 9
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("tagsCell", forIndexPath: indexPath) as! TagsCollectionViewCell
cell.backgroundColor = UIColor.clearColor()
cell.tagsButton.setTitle("Test", forState: .Normal)
cell.tagsButton.sizeToFit()
return cell
}
func collectionView(collectionView: UICollectionView!, layout collectionViewLayout: UICollectionViewLayout!,
sizeForItemAtIndexPath indexPath: NSIndexPath!) -> CGSize
{
let element = "Test" as NSString
let stringSize = element.sizeWithAttributes([NSFontAttributeName: UIFont.systemFontOfSize(17.0)])
return CGSize(width: stringSize.width + 25, height: 29)
}
If the frame of the scrollView and collectionView is same then it must be a problem to differentiate, which one to call. May be that is why it's creating an issue with the collectionView.
I have a collection view with sections, when the user did click on a cell, I'm trying to mark the as selected or checked, and then react on the selected cells, but the error I have is:
each section has 12 cells, when I select the cell everything is good I can mark it as checked, but it marks also another cell, it mark cell every 5 cells, if I downgrade the cells per section to 5, everything is ok it marks only 1 cell.
this is my code:
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 12
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("videoCell", forIndexPath: indexPath) as! VideoCell
return cell
}
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
let cell = collectionView.cellForItemAtIndexPath(indexPath) as! VideoCell
if cell.checked == true {
cell.uncheck()
}
else {
cell.check()
}
}
I am creating an application in which i want to use UICollectionView. I have used this, but i am seeing the black space between to items and two items are moved to left and right side of screen.
internal func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int
{
return 20
}
internal func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell
{
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("productCell", forIndexPath: indexPath) as! ProductCell
return cell
}
internal func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int
{
return 1
}