Following instructions from ChatGPT, I'm trying to rearrange the order of rows in a UITableView. - (void)tableView:(UITableView *)tableView performDropWithCoordinator:(id<UITableViewDropCoordinator>)coordinator { NSIndexPath *destinationIndexPath = coordinator.destinationIndexPath ?: [NSIndexPath indexPathForRow:self.items.count inSection:0]; [tableView performBatchUpdates:^{ for (UITableViewDropItem *dropItem in coordinator.items) { NSString *movedItem = dropItem.dragItem.localObject; if (movedItem) { NSIndexPath *sourceIndexPath = dropItem.sourceIndexPath; if (sourceIndexPath) { [self.items removeObjectAtIndex:sourceIndexPath.row]; [self.items insertObject:movedItem atIndex:destinationIndexPath.row]; [tableView moveRowAtIndexPath:sourceIndexPath toIndexPath:destinationIndexPath]; } } } } completion:nil]; } Xcode is complaining that UITableViewDropItem does not exist. The class is in all the documentation, it is just not showing up when needed! Suggestions?

I'm trying to read all the tracks from a GoPro Hero9 camera mp4 file. The AVAsset tracks method says there are only 3 tracks, while ffmpeg says there are 5. I'm particularly interested in the "gpmd" track, which contains GPS data, which AVAsset seemingly does not recognize. Any suggestions? Mac and ffmpeg output below. macOS code XLog(@"AVAsset creation date = %@", asset.creationDate.value); XLog(@"AVAsset tracks.count = %ld", asset.tracks.count); NSArray *trackA = asset.tracks; index = 0; for (AVAssetTrack *track in trackA) { XLog(@"%ld. trackID = %d", index, track.trackID); XLog(@"%ld. mediaType = %@", index, track.mediaType); XLog(@"%ld. data size = %@", index, NSStringFromSize(track.naturalSize)); XLog(@"___________________________"); index++; } } produces 🔷AVAsset creation date = 2022-11-13 13:33:57 +0000 🔷AVAsset tracks.count = 3 🔷0. trackID = 1 🔷0. mediaType = vide 🔷0. data size = {3840, 2160} 🔷___________________________ 🔷1. trackID = 2 🔷1. mediaType = soun 🔷1. data size = {0, 0} 🔷___________________________ 🔷2. trackID = 3 🔷2. mediaType = tmcd 🔷2. data size = {0, 0} ffmpeg -i GX010045.MP4 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'GX010045.MP4': Metadata: major_brand : mp41 minor_version : 538120216 compatible_brands: mp41 creation_time : 2022-11-13T13:33:57.000000Z location : +38.0357-122.5819/ location-eng : +38.0357-122.5819/ firmware : HD9.01.01.72.00 Duration: 00:08:52.54, start: 0.000000, bitrate: 60206 kb/s Stream #0:0[0x1](eng): Video: hevc (Main) (hvc1 / 0x31637668), yuvj420p(pc, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 59941 kb/s, 59.94 fps, 59.94 tbr, 60k tbn (default) Metadata: creation_time : 2022-11-13T13:33:57.000000Z handler_name : GoPro H.265 vendor_id : [0][0][0][0] encoder : GoPro H.265 encoder timecode : 13:33:09:07 Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default) Metadata: creation_time : 2022-11-13T13:33:57.000000Z handler_name : GoPro AAC vendor_id : [0][0][0][0] timecode : 13:33:09:07 Stream #0:2[0x3](eng): Data: none (tmcd / 0x64636D74) (default) Metadata: creation_time : 2022-11-13T13:33:57.000000Z handler_name : GoPro TCD timecode : 13:33:09:07 Stream #0:3[0x4](eng): Data: bin_data (gpmd / 0x646D7067), 48 kb/s (default) Metadata: creation_time : 2022-11-13T13:33:57.000000Z handler_name : GoPro MET Stream #0:4[0x5](eng): Data: none (fdsc / 0x63736466), 13 kb/s (default) Metadata: creation_time : 2022-11-13T13:33:57.000000Z handler_name : GoPro SOS At least one output file must be specified

I'm converting my iOS framework to build for MacOS as well as iOS. Same project, different targets. I use a build script to build each frameworks, which are identical except for the target names. I've checked all the build settings to see that they are identical re:modules, and double-checked the search paths for frameworks and headers. What could I be doing wrong? (The framework successfully builds for MacOS. My app can't load it, however, I get the dreaded "Module 'LUXforMac' not found" message...

My dev program just renewed. Anyone else seeing this?

Tests that run fine on iPhone simulator, displaying a page in WKWebview (from Wikipedia), fail to complete on iPad. This used to work OK, stopped working with very recent Xcode / iPad OS.Suggestions anyone?