问题描述
我的应用程序正在使用UIImagePickerController录制视频并将其保存到相机胶卷中,但是我的问题是录制的视频也被保存在/tmp/capture目录中并且不会被删除.因此,我的应用程序会使用大量不必要的数据慢慢累积一长串存储在tmp/capture目录中的视频.我正在使用ARC和iOS7 SDK.
My app is recording videos using a UIImagePickerController and saves it to the camera roll just fine but my problem is that the recorded video is also being saved in the /tmp/capture directory and doesn't get deleted. My app slowly accumulates a long list of videos stored in the tmp/capture directory using lots of unnecessary data because of this. I am using ARC and iOS7 SDK.
-(BOOL)startCameraControllerFromViewController:(UIViewController*)controller usingDelegate:(id )delegate forType: (int)type
{
if (([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] == NO)
|| (delegate == nil)
|| (controller == nil)) {
return NO;
}
UIImagePickerController *cameraUI = [[UIImagePickerController alloc] init];
cameraUI.sourceType = UIImagePickerControllerSourceTypeCamera;
if(type == IMAGE )
cameraUI.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeImage, nil];
if(type == VIDEO)
{
cameraUI.videoMaximumDuration = 60.0f;
cameraUI.videoQuality = UIImagePickerControllerQualityType640x480;
cameraUI.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie, nil];
}
cameraUI.allowsEditing = NO;
cameraUI.delegate = delegate;
[controller presentViewController: cameraUI animated: YES completion:nil];
return YES;
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];
if(CFStringCompare ((__bridge_retained CFStringRef)mediaType, kUTTypeMovie, 0) == kCFCompareEqualTo)//video
{
NSString *moviePath = [[info objectForKey:UIImagePickerControllerMediaURL] path];
if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(moviePath))
UISaveVideoAtPathToSavedPhotosAlbum(moviePath, self,@selector(video:didFinishSavingWithError:contextInfo:), nil);
[self dismissViewControllerAnimated:NO completion:nil];
globalDel.videoPath = moviePath;
globalDel.videoToUpload = [NSData dataWithContentsOfFile:moviePath];
}
}
globalDel.videoPath定义为:@property(nonatomic,retain)NSString * videoPath;globalDel.videoToUpload定义为:@property(nonatomic,retain)NSData * videoToUpload;完成后,我将它们设置为NULL.
globalDel.videoPath is defined as: @property(nonatomic,retain)NSString *videoPath;globalDel.videoToUpload is defined as: @property(nonatomic,retain)NSData *videoToUpload;I set them to NULL once done with them.
我使用委托文件来保留这些引用以在不同的导航控制器之间使用.
I use a delegate file to keep those references for use between different navigation controllers.
为什么应用程序每次都会将文件保存到tmp文件夹中?如何阻止它执行该操作?
Why is the app saving the file to the tmp folder each time and how do I stop it from doing that?
谢谢
推荐答案
上传完成后,您需要删除包含电影的目录(这也会删除临时文件):
You need to delete the directory containing the movie once your upload is finished (which will also delete the temp file):
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:globalDel.videoPath]) {
NSError *error;
// Attempt to delete the folder containing globalDel.videoPath
if ([fileManager removeItemAtPath:[globalDel.videoPath stringByDeletingLastPathComponent] error:&error] != YES) {
NSLog(@"Unable to delete file: %@", [error localizedDescription]);
}
}
这篇关于UIImagePickerController不会从/tmp/capture删除临时视频捕获文件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!