3
我想創建一個共享擴展以使用新的iOS 8應用程序擴展共享視頻。我想要打開照片應用程序並通過我的擴展程序共享視頻。如何在iOS8共享擴展中獲取視頻屬性
我通過以下代碼獲得視頻網址:
NSExtensionItem *inputItem = self.extensionContext.inputItems.firstObject;
NSItemProvider *provider = inputItem.attachments[0];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0), ^{
if ([provider hasItemConformingToTypeIdentifier:(NSString *)kUTTypeQuickTimeMovie])
{
[provider loadItemForTypeIdentifier:@"com.apple.quicktime-movie" options:nil completionHandler:^(NSURL *path,NSError *error){
if (path)
{
dispatch_async(dispatch_get_main_queue(), ^{
_moviePath = path;
});
}
}];
}
});
但是我只拿到了視頻文件網址:
file:///var/mobile/Media/DCIM/100APPLE/IMG_0062.MOV
我也希望得到更多的視頻屬性,如:大小和持續時間
我用下面的代碼,但不工作:
NSDictionary *opts = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO] forKey:AVURLAssetPreferPreciseDurationAndTimingKey];
AVURLAsset *urlAsset = [AVURLAsset URLAssetWithURL:_moviePath options:opts];
int second = urlAsset.duration.value/urlAsset.duration.timescale;
和驗證碼:
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:_moviePath];
CMTime duration = playerItem.duration;
float seconds = CMTimeGetSeconds(duration);
NSLog(@"duration: %.2f", seconds);
他們都沒有工作
和Xcode的提示:
Error [IRForTarget]: Call to a symbol-only function 'memset' that is not present in the target
error: 0 errors parsing expression
error: The expression could not be prepared to run in the target
你可以幫我獲得視頻屬性非常感謝您!
你有沒有設法找到這個問題的答案!?我正在努力與自己 – YuviGr 2015-09-12 11:18:47
你有結果? – 2015-10-16 06:35:03