I've been using UIImageJPEGRepresentation to take a cropped screen shot and share it using the Copy function on iOS.
Sometimes the image that is given to Copy by my App is clipped.
Only the bottom 1/3 to 1/4 of the image makes it through UIImageJPEGRepresentation.
I tried lowering the compression from 0.7 to 0.5 which seemed to fix it for the reproducable screen condition I had found.
Now I find that it's happening again I've changed the compression to 1.0, effectively turning it off (and the bug, I'm hoping).
It appears to work for all the cases that I can reproduce so I can only conclude it's a bug in this routine.
- (void) shareImageByCopy : (UIImage *) image withTitle : (NSString *) title {
NSData *compressedImage = UIImageJPEGRepresentation(image, 1.0);
NSString *imagePath = [[FileUtils applicationTemporaryDirectory] stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.jpg",title]];
NSURL *imageUrl = [NSURL fileURLWithPath:imagePath];
[compressedImage writeToURL:imageUrl atomically:YES];
NSArray *activityItems = @[title,imageUrl];
UIActivityViewController *activityController = [[UIActivityViewController alloc] initWithActivityItems:activityItems
applicationActivities:nil];
Anyone else experiencing this? I updated to iOS 11.4.1 yesterday so it's still current at time of writing this.