I am looking at the Nimbus photo application example and it seems that it always allows paging for the photo. Is it even possible to turn off paging so I can see 2-3 image in a view instead of one at a time? Also I want to have a loosely scroll (i.e: doesn't snap when I switch between images). How do I do this?
see this demo it is usefull for select multiple photo from library and display it in scrollview with pagging
https://github.com/ForrestShi/UploadPhotoFB
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I created a Collection View for a app that showing photo specific by self app captured.
When showing the original photo it very slow e.g. the size of 5MB~10MB may be too large for showing.
Is there any way that I can get or even create the thumbnail for preview?
I tried for using C# standard way but the Image.Save( MemoryStream in MAUI is Windows platform only ...
First of all, I want to point out, that it is not a matter of choice.
Too big images will not be rendered, and you will see nothing but white space. (Learned that from testing it on Android.)
You can check this first:
https://learn.microsoft.com/en-us/dotnet/maui/user-interface/graphics/images?view=net-maui-7.0
I also use ImageSharp. (Despite the non-sense that happened recently, this is still a very good tool).
In any case, maybe it will be good to store the photo and the thumbnail separately, speaking of collection view, I do not think that it will perform well, if you need to mass-scale 5-10 MB photos. At least the devices I use cannot do this effectively.
I am using Fancybox. In a slideshow where the thumbnails are not reduced from larger images, and are linked to separate full-size images (that will appear in the slideshow when thumbnails are clicked), will the full-size images also pre-load with the webpage? Or only load when the slideshow is activated? My slideshows have many images, and I don't want them to load until necessary. Thanks in advance for advice!
First, you can use developer tools to easily check network activity.
The script fully loads current and previous/next slides after it is activated. Thumbnails are, hoverer, all loaded at once. This means, that if you have extremely large quantities of images, the script will load only max 3 of them and it would be better to disable thumbnails.
I would like to store severals photos like photo application, however i don't know exactly the objects what i need. If anyone know how to implement this way i'm interested.
A link to give you an idea: http://blog.photobox.fr/wp-content/uploads/2010/07/Album-iPhone5.jpg
thank you in advance.
You can try the PhotoViewer provided in three20 framework. It is exact replica of the Photos app of iPhone, if that's what you're looking for. You can find a tutorial here.
go to this link it help u
https://github.com/kirbyt/KTPhotoBrowser
Having spoken to an Apple engineer on some of the optimizations that they went through on the Photos app, I can give you a couple of tips:
They never display back the original photo. Because of a photo's size, they only take the original photo and save off a number of optimized thumbnail images.
The example image you show does not contain a series of thumbnail images. Each row is actually a single image. For selection, an overlay is placed in the exact size and dimension of the thumbnail image to give the impression that you are selecting a particular image. This could be accomplished by using a table view, but it more likely just a scroll view.
I would like to allow the user to select one of several pre-supplied images. Is there a standard way to do this?
The only thing similar to this that is Standard would be the Image Picker control.
However for this to work you would have to add your images to the iPhone's image library and the user would have to pick them from out of all their other pictures.
What you need to do is build something similar.
You can go as easy or complex as you need/want.
I would go simple (as that is the idea of the iPhone) and have a scroll view (depending on the number of pictures you want) and load thumbnails of the images. When they select one, you do something with it. (Look at the view when you are looking in a photo album on the iphone)
I believe I have seen open-source representations of this before.
I would check google code.
I use a UITableView for this, with a thumbnail and description of the image they're choosing.
I would like to take a stack of images (or potentially an array of URLs to download images) and display them in full screen, one at a time, using user swipes to smoothly animate the next image in the stack, using the iPhone SDK. Apple's Photo.app seems to do this. Additionally, if the image has not been retrieved yet, I'd like to display the progress indicator.
Can you point me to example code and explain how this technique would be implemented?
You need to use UIScrollview's page control mechanism. Apple has plenty of sample code, including one called, strangely enough, Page Control:
http://developer.apple.com/iphone/library/samplecode/PageControl/index.html
If you want any behavior beyond that, you'll have to roll it yourself.