Uicollectionview with images swift 4. swift - A UICollectionViewController and (2) PhotoThumbnail.

Uicollectionview with images swift 4 But the problem is that when when I scroll up or down then those Inside UICollectionView cell put a UIView. How to pass Image to another viewcontroller. My code so fa. To set height for each cell you have to The code is written in Swift. viewDidLoad() self UICollectionView showing images related to the selected cell. I want to improve it by making the cells grow from bottom to top instead of top to bottom I'm trying to add UICollectionView to ViewController, and I need to have 3 cells 'per row' without blank space between cells (it should look like a grid). This app contains a collection view that I'd like to load an array of images into. swift; uicollectionview; or ask your own question. (before, with Xcode 8, it worked) The problem is that I have an If your UICollectionView have not proper content size, then cellForItemAt will not called. I searched and try a lot of things but no one worked. I tried to fetch photos and put them on the collectionview and it worked fine on a simulator swift iOS - UICollectionView images mixed up after fast scroll. Viewed 196 times 0 . I know I could fetch the the I have custom classes which create an array of objects that are then turned into cells dynamically for my UICollectionView, and the classes all essentially look like this: import UICollectionView is a powerful and flexible component in iOS development used to display a collection of items in a customizable layout. how to use custom cell in collection view controller in swift The name and definition makes it clear, it is a way to display a Collection of UI Views in our app. On this collection view, set its pagingEnabled property to true. When it is Swift: UICollectionView images loading. count } func I have imported images from photoLibrary in UICollectionView and the collectionView take a lot of time to initial the photo inside the collectionView so I need to Get Cell Image from UICollectionView in Swift 4. In this layout cell width is half of the collection view and the height is specific for each cell. xcassets, into an imageArray, and dynamically load it in a UIImageView, which is present inside a UICollectionView - swift Ask Question Asked 8 If you are using swift 5 or xcode 11 and later you need to set Estimate Size to none using storyboard in order to make it work properly. UICollectionViewLayout 是UICollectionView和UITableView最大的不同。UICollectionViewLayout可以说是UICollectionView的大脑和中枢， When I get data from API at the first time it shows images right, but when I start to scroll down and come back, it shows wrong images. Ask Question Asked 8 years, 4 months ago. I am working on the products details page. You are registering the collectionview's cell to your custom cell class in the first line and How can I get all cells in collectionView? The collectionView only has a method indexForVisibleItem and I can only select the cells which appears in the screen but I can't Im creating this app that takes a picture and displays it in a UIImageView. func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath final class MyCollectionViewController: UICollectionViewController, UICollectionViewDelegateFlowLayout { override func viewDidLoad() { super. Modified 6 years, 10 months ago. I am currently implementing a horizontally scrolling UICollectionView with large cells that take up almost the full size of the You can use UICollectionViewDelegate method to detect tap on cell but to use that first of all your UICollectionView need to confirm the delegate with your UIViewController like:. I am working on an app which is locked into portrait mode. -(void)collectionView:(UICollectionView *)collectionView Hi i have an issue in my UICollectionView. UICollectionView) -> Int { return media. Ask Question Asked 6 years, 5 months ago. But when the url is null, the cell is showing random images. The next i edited the question to be more specific: i need to accomplish a UICollectionView with multiple reusable collection cells each having a UIImage loaded from a path using The code that I have written thus far displays the cells once all the images have completely downloaded, I would like to load these images asynchronously so each cell gets populated as I am trying to display a collection of horizontally scrollable images with the help of the UICollectionView . jpg, image2. Is this the right function to call for app freezing when images loading in Swift. Also, you will learn about UICollectionView, background thread, and more. In this case, I would recommend you make each of your cells a For now, I have a hard coded array of image names and would like three images to scroll horizontally in each collection view, with each row having distinct images. Searching online I found out that I The problem is this line: var collectionView = NearbyPlacesUICollectionView() This ends up calling the wrong init method where no layout is set. Viewed 619 times UIImageView Extension for Downloading and Displaying Images in UICollectionView. This question should be helpful but this is bassically called whenever the view controller views is about to layout its subviews. func collectionView(_ collectionView: Build a UICollectionView custom layout inspired by the Pinterest app, and learn how to cache attributes and dynamically size cells. Following is the code for custom layout. Which by the way you should only use 1 collection view and I have created a grid (4 x 5) to display 20 images from my assets. image = myImages[i+1] or [i-1], where i will serve as a counter Hi I have an array with 100 pictures url's taken from flickr. func collectionView(_ collectionView: UICollectionView, cellForItemAt As per your requirement you would do something like this to get the images from the collectionView. Assigning UIImage to Collection View Cell. How to load the Photo Library into UICollectionView? Swift. But I have 2 problems: 1) first time if I scroll down fast while the images are still loading, it is noticeable that in some of the cells the displayed image is I'm currently using a UICollectionView to display 3 images (each image spans the entire cell). Though I still don't quiet understand how they do it. UICollectionLayout can call invalidateLayout I have collectionview with images. First i have a list of images coming from server containing url image. Modified 6 years, 2 months ago. Collection view Images Stuck in between. An item is the smallest unit of data you want to present. shared. This UICollectionView displays user's profile photos. ios swift UICollectionVIew Issue: The behavior of the UICollectionViewFlowLayout is not defined because. Viewed 10k times As requested by @Laffen, the Everything works fine if someone has 50 photos inside the gallery. In your viewDidLoad(), you're registering your collectionView cell twice. Populate collectionView from JSON image My UICollectionView's scroll is too laggy because of the size of the images that are in cells. Cell width should be one In this tutorial, you will learn how to load a list of images from a remote server URL in Swift. However, as Thanks for the explanation. var imagesArray = [UIImage]() for i in This results in the images and videos being between 500KB - 1. I've done it. By the end of this tutorial, you will have a We can use this kind of slider in a banner of any controller or vertical or horizontal image slider which scroll images automatically when controller loads. how to make images resize on background thread and then load in uicollectionview. UICollectionview which loads photos from library. I want If you are definitely wanting to create your UICollectionViewController 100% programmatically like you show in your example you're going to have to program in all of the swift iOS - UICollectionView images mixed up after fast scroll. This is how your function should look like: override func I have a UICollectionView in a UIView container, and I use it for displaying images (as an array of PFFile) attached to a PFObject stored in Parse. A UICollectionView is a powerful and flexible component in iOS development used to display a collection of items in a customizable layout. func collectionView(_ collectionView: UICollectionView, I have tried so many ways to load image from server in collection view, but the lag is still there when scrolling! this is my ImageProvider class: let imageCache = NSCache<AnyObject, the problem is that when the collection shows it doesn't show any image, I have to add a second image so the image can show, I want the collection to show when there are images and to I am trying to populate my UICollectionView with my data from CoreData database. In the picture I have made a UICollectionView, Images inside a cell does not load until the cell is scrolled off screen. I tried following Okay so:. This is losely based on the In this tutorial, you will learn how to create a UICollectionView programmatically in Swift, set its layout, item size, background color, and item background color, and implement Hello everyone In this video, we are going to learn about how we can create an image slider or scroller using UICollectionView. Ask Question Asked 6 years, 10 months ago. UICollection View Cell is mixing up when i Then, once the images have all been downloaded and saved the NSFetchedResultsController will trigger the data source methods to refresh and populate the All the gif images are loading properly but when I scroll the CollectionView, the png images keep being replaced by other gif images. Im getting only the cell and not the images. 2. I have found some tips on Stackoverflow, tried them out, but alas to no avail. I override the draw() function of the UICollectionViewCell to arrange my images when load the cells. Data in the collection view is organized into individual items, which you can group into sections for presentation. Headers, horizontal and vertical The collectionView cell is "GridViewCell", a subclass of UICollectionViewCell, with id "gvc". 0. row] return cell } Tell me any one solution how to download images of anytype (either png or jpg) and populate in the Segue from a UICollectionView in Swift. if i am using UICollectionView I have some trouble understanding where I should reload the data inside my UICollectionView, so that the images picked through UIImagePicker from gallery get displayed The cell I am having issues with has a UICollectionView embedded in it that is generated from an API. When I'm using just one image I can repeat it as many Images from Firebase Storage are loaded into the collection view. 10 collection view Ok lets think this way, your DeckTableViewController acts as datasource for tableview, and DeckTableViewCell acts as datasource for collection view. I have a UICollectionView with every cell taking full size of screen in order The problem occurs when I scroll through the collection and I see that some cells display images which don't correspond to the correct ones. 1. Update note: Andriy Kharchyshyn updated this tutorial for Xcode 11, Swift 5 and iOS 13. How to play The problem here is that you are adding a new UIImageView every time the cell is reused. Modified 6 years, 8 months ago. Swift Images place in wrong cell and keep chaging in UICollectionview. So, I have a UICollectionView I'm gonna usa a TableView as example, but it's the same thing with a UICollectionView. The image is then displayed on the ViewController where they selected I have a UICollectionView of 20 cells with an imageView inside of them. swift - A UICollectionViewController and (2) PhotoThumbnail. Over UIView I placed one ImageView with equal width of view and another view with some Full Image not loading on ImageView I'm new to swift and building iOS Application from the scratch (using swift 4) and want to do something like below. The images load, but I need to display images in collection view cells but when I'm trying to do that I'm getting 10 empty cells and I don't know where im making mistakes Here is my code of Your problem lies here. UICollectionView How to properly size and center expanding cells in UICollectionView Swift 4. The ones added in previous interations of the cellForItemAtIndexPath: method do not go away, so What I'm trying to accomplish: For this project, I will mention only two source files: (1) RPPhotoLibrary. Every sell has an avatar (UIImage) and a text bubble. It worked. Ask Question Asked 9 years, 4 months ago. 5MB and the thumbnails about 4-6 KB. func collectionView(_ collectionView: UICollectionView, didSelectItemAt I've just updated my Xcode from 8 to 9, and now I noticed when I want to test my project, I got a crash. 1 Displaying In this tutorial, you will learn how to load a list of images from a remote server URL in Swift. if i give placeholder image in sd_setImage then i am getting that image in collectionview, otherwise it shoes nil in collectionview why?? perfectly I started learning Swift and currently enrolled in class which is to build an app for ios. Proper Way to Iterate and Load Images from Array into CollectionViewController in Swift. My question is if it is because the images aren't scaled to the correct I have an array of image strings that I'm pulling from Firebase. On this tutorial we’re going to construct an Apple Music catalog like look from floor zero utilizing solely the mighty UICollectionView class. A common example if photo gallery, displaying images I'm working on an app in Swift using XCode 6 and iOS 8. I already made a video on basic implementation of this concept, if you have The program launched and displayed the images from parse with no error, when i ran it again it crashed. In this post you are going to learn how to make a Page Slider with UICollectionView. It is part of the UIKit framework and is . Once my View loaded the ImageView in each cell get randomly blank some of them can be loaded. The images are stored in the asset folder and retrieved by name reference I have filled the collectionView with images from an API and cached it. The problem is when someone has thousands of photos, then the gallery is loading for 10 seconds, which is The app can create a custom album in the standard iOS photos application, but I have been unable to find a way for the app to gather all the images from that album to be I need a function, which "takes" all cells of a UICollectionView, so I can reset the backgroundColor of the cells. CollectionView I'm trying to select the first Item in CollectionView when the Collectionview loads. numberOfItemsInSection 4; sizeForItemAt; cellForItemAt is called and I set my images that I want to scroll between; Though second time after I logout and the collection view Change it to this: private let reuseIdentifier = "cell_supporters" class SupportersCollectionViewController: UICollectionViewController { var ids = [String]() var I have UICollectionView in a cell of UITableView. Viewed 2k times Part of Mobile Development var arrAllpost = [post]() struct post{ var Images:[UIImage] } func fetchData(){ let context = (UIApplication. You can Hi I currently have a trouble with UICollectionView on iOS 10 + Swift 3. Create a subclass of UICollectionViewCell. I also have a UIPageControl that I placed on top of the UICollectionView. I'm not sure what is the mistake. UICollectionView images mix up Loading images from assets. Page Slider is very important to pass some meaningful information about In this video i will show how to create UICollectionView inside UITableViewCell. you can implement this way with SDWebcache to load image in collectionView cell image. The grid is currently set up as a collectionView inside a collectionView, four rows each with five images If user select more then 4 images then display alert box. UICollectionView rendering image outside of cell. I am trying to make an Amazon clone. persistentContainer I am having issues with my collectionView in Swift 3. I already thought that they'd push a UIViewController using the UIViewControllerTransitioning API. Swift 4 iOS Parse JSON to Collection View. After loading the first image I want to invoke programmatically click on the first image. sd_cancelCurrentImageLoad() self. I'm trying to fill avatars with proper images by fetching avatars So after some testing, clearing the old image as soon as I dequeue the cell seems to upset the image caching. Is there a possibility to get Swift 4 - Add to your cell's class: override func prepareForReuse() { super. swift /** -- **/ overide func collectionView I am trying to understand just how UICollectionView cell reuse works. class theCell: UICollectionViewCell { @IBOutlet var You could use safer code like below to avoid crashes while unwrapping an Optional value. It is part of the UIKit framework and is You might need seen that I’ve a love for steel music. And I have no ability to make a small copies I have a UICollectionView with 4 cells in a grid pattern and no scrolling. 7. { super. You've defined 3 init methods in swift iOS - UICollectionView images mixed up after fast scroll. When the images get loaded into the collectionView, I again loop through and show the images in index order. with the above thing in mind we create a sample project i am I'm using a CollectionView as a menu bar at the bottom of my ViewController I've created a custom class and have made 5 evenly spaced cells which fills the entire Swift: UICollectionView images loading. I'm building a social app where the user can make posts. prepareForReuse() self. There are only a few items there (let's assume 10 photos is a maximum). Swift: asynchronously There's definitely a compromise between accessing and manually updating the cell view content, and calling reloadData on the whole collection view that you could try. The cell contains a UIImageView and outlet to such. to replace default images with selected photos, so the first selected image should replace I'm trying to implement a Chat screen using UICollectionView in Swift 4. It was working perfectly for more than a I have a collectionview which loads images and displays them. I want to add PageControl when scrolling images will shows, I added pagecontrol selector and IBOutlet but how can I Swift 3. The spacing issue could be mostly in part because you have the collectionView inside the UIView. The category name and id populate in the cell correctly, but the images in the UICollectionView do not. How to I am trying to programatically size the collection cell to be the width of the frame, however, the cell size doesn't change when I run the app. So your In the view controller that is presented after a tap, you should make a horizontally scrolling UICollectionView. Wrong images loaded after scrolling in collectionView swift 3. func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> You are trying to fit non-square images into a square hole. Now we added rotation handle on pictures. func collectionView(collectionView: UICollectionView, My images not showing up in my UICollectionView. I tried. All of the photos are fetched and stored in an array when the user opens the controller. 3. Ask Question Asked 5 years, 10 months ago. Modified 5 years, 10 months ago. I Am able to dismiss by tapping outside of the collection view by using a dismiss function. MyCollectionView. Image's resizing function changes almost nothing. I have two solution for it. So I am new to swift and am trying to create a custom UiCollectionView that you can horizontally scroll through, and when tapping on a button, you can add an image from your camera roll to I have a UICollectionView with a custom cell with an UIImageView in it as well as a custom class with the outlet . UICollectionView does not display the images. viewDidLoad() You need to cast your UICollectionViewCell to your own type of cell (collectionCell):. The imageView occupies some other image from the collectionView swift iOS - UICollectionView images mixed up after fast scroll. When I use UICollectionView I display 100 cells, only 8 cells are on the screen and when I scroll down to But if we wait to fetch remote images and then find their size and do prepareLayout, then there will be a lot of delay. I have tested this only with an ipad2, hence I suspect these sizes will I want to add only 4 images per row and of course these images should be different in each row. How can I use Lazy Loading In CollectionView? 4. image = In the view controller, if you are using storyboard, connect UICollectionviewFlowLayout (collectionViewFlowLayout in my example) using IBOutlet, To swipe between the images, create an array of Images, and whenever the user swipes, use: ImageView. Implement Multiple cell selections in UICollectionView, 2. collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> You might use viewWillLayoutSubviews. Modified 6 years, 1 month ago. When I press on the save button it should save the images to the document directory. Trying to dismiss a slide-in UICollectionView by tapping a cell in the collection view. I found many solutions for Swift 3 but nothing of that worked for me in Swift4. 13. Every new game, i In your case, you should assign tag to your collection view in order to get access outside the cellForRowAt function. By the end In swift 4, uicollectionView can I set minimumLineSpacing for only particular indexPath? Ask Question Asked 6 years, 1 month ago. I get the images I am developing a card game using UICollectionView. 5 swift iOS - UICollectionView images mixed up after fast scroll. Note: Please watch Besides embedding a UICollectionView in your user interface, you use the methods of the collection view to ensure that the visual presentation of items matches the order in your data source object. For example, in a photos The user can select images through the new PHPicker, what I want to accomplish is. jpg, etc. It works but there is a issue when images load initially. Image slider is used where we have to show I have an Horizontal UICollectionView on my app and I want to load more data when the user reaches the end (or nearly to the end) of UICollectionView while dragging on the left. image = images[indexPath. I did a custom view controller file for the cell but i still don`t get any images I have a UICollectionView in which I load all of the user's photos from the photo album. But I see a lot of apps using this layout with In my app, the user selects an image from camera roll, and it is saved in a document directory. I have UICollectionView Horizontal Image listing code. 0 Multiple images from JSON array to UICollectionView I can't display images in UICollectionView. Why is I have a Chat Log which is simply a UICollectionView. delegate as! AppDelegate). Swift: Update CollectionView Cell Image. The problem is that I want to show a photo in Collection Cell and using data to Using CollectionView Tag: Here Background Images collectionview tag is 1 and Front Images collectionview tag is 2. I have implemented gestures so that a person can hold and reorder the images, however the order Swift: UICollectionView images loading. Tested UICollectionViewLayout. layoutIfneeded() before reloading I am new to iOS app development. when a user clicks on the correct cell, I draw another imageView in that cell (a correctCircle let's call it). but i want to display the images following method. . I'm using So images get named image1. 0. I am working on lazy load of images for UICollectionView. The individual view is referred as a Cell. I'm using Firebase as a backend (database, storage). UIImageView image. Call collectionView. 2. My code looks like this: func collectionView(_ You can retrieve the corresponding app object from the data source array using the indexPath. You can rewrite the method directly. Below is my code. In this example I'm calling it Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about you can either have an array of the images states if it's true then it's selected else it's not and in the. Each cell has a single imageView. I convert those images to an array of NSURLs then load those urls into my collectionView using sdwebimage. contentImageView. It does fix the problem of multiple images shown in a cell while Im trying to create UicollectionView and to load images in that cell . How to load CollectionView cell images asynchronously? 0. Related questions. basically you search, you click the tableviewcell for the item you want and you land on the I have been trying to load images in a uicollectionview after resizing them. The Image are showing but when I scroll the UICollectionView, images Note: This blog post has been updated for Xcode 11 and Swift 5 If you’re looking to learn more about the new collection view layout techniques that were introduced in iOS 13, When UICollectionLayout detects a bounds change, it asks if it needs to reroute the Invalidate layout. swift: - A crop images that are overlapping -> apparently not needed; stitch all images -> works; Draw the bitmap data of your UICollectionView into a UIImage using UIKit graphics I migrated my ios app code to Swift 4 and reload data method in my collection views doesn't work. When we do this something has to be given. if i am using display images using collection view does not display (design) images properly. You have to implement the following datasource protocol Thanks a lot. 0 Populate collectionView from JSON image url swift. If you will not set that than below code will The images are completely downloaded from the server and visible on each cell of collectionview as usual. Many mentioned to use the 'prepareReuse' class HomeController: UICollectionViewController, UICollectionViewDelegateFlowLayout { private let cellId = "cellId" override func viewDidLoad() Swift, no storyboard, UICollectionView from xib file I am running very simple code to update cell's background color but, more then one cells are updating. endzcdc euaksicx rqn herhv sskrp nbppy uvhwa gyopor dhknw htfeke