我有一些困难,在分享视频与空投。所以,我像这样使用AssetLibrary:
else if (conformsToVideo) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Asset Loaded" message:@"Video One Loaded"
delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
self.mediaAsset = [AVAsset assetWithURL:[info objectForKey:UIImagePickerControllerMediaURL]];
UIActivityViewController * controller = [[UIActivityViewController alloc] initWithActivityItems:@[self.mediaAsset] applicationActivities:nil];
[self presentViewController:controller animated:YES completion:nil];
}也许这不是做它的方式,我不知道,我也没有找到任何关于它的教程,所以如果你有一个,我很乐意接受它。
现在我的问题是,当我选择一个视频时,一切正常工作直到UIActivityViewController弹出,我没有任何错误,但我不能使用空投(nor any other service BTW),我唯一能做的就是按下Cancel button of UIAVController。
我正在使用iOS 8.3。
谢谢你的帮忙
发布于 2015-09-03 05:11:13
好的,最后我找到了一个答案,也许不是最好的答案,但我把它放在那里,以防它帮助别人,因为我在与空投分享视频时没有发现太多:
NSURL * path = [info objectForKey:UIImagePickerControllerReferenceURL];
BOOL conformsToVideo = (UTTypeConformsTo((__bridge_retained CFStringRef) mediaType, kUTTypeAudiovisualContent));
if (conformsToVideo) {
[self.library assetForURL:path
resultBlock:^(ALAsset *asset) {
ALAssetRepresentation* assetRepresentation = [asset defaultRepresentation];
NSString* outputDirectory = [NSString stringWithFormat:@"%@", NSTemporaryDirectory()];
NSString* pathToCopy = [outputDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@", assetRepresentation.filename]];
NSUInteger size = (NSUInteger)assetRepresentation.size;
NSMutableData* data = [NSMutableData dataWithLength:size];
NSUInteger bytesRead = [assetRepresentation getBytes:data.mutableBytes fromOffset:0 length:size error:nil];
NSURL * url = nil;
if ([data writeToFile:pathToCopy atomically:YES])
{
NSLog(@"Ok");
url = [NSURL fileURLWithPath:pathToCopy];
UIActivityViewController * controller = [[UIActivityViewController alloc] initWithActivityItems:@[url] applicationActivities:nil];
[self presentViewController:controller animated:YES completion:nil];
}
} failureBlock:^(NSError *error) {
NSLog(@"Failure to use the ALAsset");
}
];
}我使用这个问题找到了解决方案:Share a video from asset library with AirDrop fails --我只是将前面的步骤添加到给出的代码中,希望它能有用。
https://stackoverflow.com/questions/32345420
复制相似问题