ImageSlider

Example

Drop ImageSlider on the screen and set its width and height to fill parent. The blocks load the file paths you already keep in a list, show Bild 2 von 5, and delete the picture that was held down.

• CounterFormat is Bild {index} von {count}. {index} starts at 1.
• Pass file paths, not the Canvas. After a photo is copied into Pictures, add that path to the list, then set ImageSlider.Images to the list.
• LoadFolder is the other way in: pass the Pictures directory. It reads that folder only, not subfolders.
• Web links are rejected. Camera files, image-picker content URIs, and assets stay on the device.
• LongClick does not delete by itself. Call DeleteImage with the index, then set your list to ImageSlider.Images.
• DeleteImage removes the picture from the slider and deletes the file when the app is allowed to. Assets and many image-picker content URIs leave the slider only. ImageDeleted.fileDeleted says whether the file itself was deleted.
• On Android 13 and newer, reading a shared Pictures folder asks for photo access. Files in the app private folder do not.

Load

Screen.Initialize sets ImageSlider.Images to the list of paths. Loaded fires with the count. ImageChanged fires with the picture now on screen. Swipe left or right, or call Next and Previous. The counter uses CounterFormat.

Delete

LongClick receives the index and the path. DeleteImage removes that picture and tries to delete the file. ImageDeleted fires, and the blocks save ImageSlider.Images back into the list. ErrorOccurred shows a notifier when a path cannot be read.