如何在iOS中通过UIActivityViewController导出PHAsset视频
我试图在iOS中通过如何在iOS中通过UIActivityViewController导出PHAsset视频,ios,Ios,我试图在iOS中通过UIActivityViewController导出PHAsset视频。 当PHAsset是图像时,它工作得很好。问题是当PHAsset是视频时。 我有以下代码要导出PHAsset视频,但没有附加任何内容 var asset = getCurrentAsset() as PHAsset? if asset == nil { return } if asset?.mediaType == PHAssetMediaType.Vi
UIActivityViewController
导出PHAsset
视频。
当PHAsset是图像时,它工作得很好。问题是当PHAsset
是视频时。
我有以下代码要导出PHAsset
视频,但没有附加任何内容
var asset = getCurrentAsset() as PHAsset?
if asset == nil {
return
}
if asset?.mediaType == PHAssetMediaType.Video {
PHImageManager.defaultManager().requestAVAssetForVideo(asset, options: nil) { (avAsset:AVAsset!, audioMix:AVAudioMix!, info:[NSObject : AnyObject]!) -> Void in
var videoURL = avAsset as AVURLAsset
var activityVC = UIActivityViewController(activityItems: [videoURL], applicationActivities: nil)
activityVC.completionHandler = {(str: String!, value: Bool) -> Void in
}
self.presentViewController(activityVC, animated: true, completion: nil)
}
}
请帮助我如何导出
PHAsset
视频。您不应该附加avurlaste
本身,而应该将avurlaste
的URL
指定为活动项
因此,使用avAsset.URL
应该有效,avAsset
是类型为avurlaste
的实例对象
编辑
let theAsset = avAsset as AVURLAsset
let videoURL = theAsset.URL
var activityVC = UIActivityViewController(activityItems: [videoURL], applicationActivities: nil)
我为此浪费了很多时间 最后,我通过将视频保存到文档目录,并使用文档目录中的文件url解决了这个问题
typeof(self) __weak weakSelf = self;
[[PHImageManager defaultManager] requestExportSessionForVideo: self.videosAssets[index] options:nil exportPreset:AVAssetExportPresetPassthrough resultHandler:^(AVAssetExportSession *exportSession, NSDictionary *info) {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString* videoPath = [documentsDirectory stringByAppendingPathComponent:@"tempSelvi.MOV"];
NSFileManager *manager = [NSFileManager defaultManager];
NSError *error;
if ([manager fileExistsAtPath:videoPath]) {
BOOL success = [manager removeItemAtPath:videoPath error:&error];
if (success) {
NSLog(@"Already exist. Removed!");
}
}
NSURL *outputURL = [NSURL fileURLWithPath:videoPath];
NSLog(@"Final path %@",outputURL);
exportSession.outputFileType=AVFileTypeQuickTimeMovie;
exportSession.outputURL=outputURL;
[exportSession exportAsynchronouslyWithCompletionHandler:^{
if (exportSession.status == AVAssetExportSessionStatusFailed) {
NSLog(@"failed");
} else if(exportSession.status == AVAssetExportSessionStatusCompleted){
NSLog(@"completed!");
dispatch_async(dispatch_get_main_queue(), ^(void) {
NSArray *activityItems = [NSArray arrayWithObjects:outputURL, nil];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
activityViewController.completionWithItemsHandler = ^(NSString *activityType, BOOL completed, NSArray *returnedItems, NSError *activityError) {
NSError *error;
if ([manager fileExistsAtPath:videoPath]) {
BOOL success = [manager removeItemAtPath:videoPath error:&error];
if (success) {
NSLog(@"Successfully removed temp video!");
}
}
[weakSelf dismissViewControllerAnimated:YES completion:nil];
};
[weakSelf presentViewController:activityViewController animated:YES completion:nil];
});
}
}];
}];
谢谢你的回答,Gabbler。我将AVURLAsset更改为AVURLAsset.URL,但它仍然无法工作。您能详细地指导我吗?当我在UIActivityViewController中单击“保存视频”选项时,它工作了。“邮件”选项出现问题。当我点击“邮件”选项时,没有附加任何内容。你能指导我怎么做吗?谢谢。那么解决方案是什么呢?你必须在iPhone中设置你的邮件帐户。是的。我知道。新消息对话框由UIActivityController显示,但视频未附加到正文中。如果我把它发送到另一个邮件,也没有那个视频。正如我之前所说,它非常适合图像。