私は ELCAlbumPickerController に取り組んでいます。複数の画像を選択してアップロードできますが、さらにファイル名とファイルのデータ型を取得したいと考えています。どうやってやるの？
画像またはビデオのいずれかを選択できます。画像とビデオの両方、および任意のファイルを一度に選択するにはどうすればよいですか?
参考までに、以下の私のコードを見つけてください。
- (void)viewDidLoad {
UIImage *anImage = [UIImage imageNamed:@"elc-ios-icon.png"];
NSArray *Items = [NSArray arrayWithObjects:
@"A text line",
anImage, nil];
UIActivityViewController *ActivityView =
[[UIActivityViewController alloc]
initWithActivityItems:Items applicationActivities:nil];
[self presentViewController:ActivityView animated:YES completion:nil];
}
- (IBAction)launchController
{
ELCAlbumPickerController *albumController = [[ELCAlbumPickerController alloc] initWithNibName: nil bundle: nil];
ELCImagePickerController *elcPicker = [[ELCImagePickerController alloc] initWithRootViewController:albumController];
[albumController setParent:elcPicker];
[elcPicker setDelegate:self];
ELCImagePickerDemoAppDelegate *app = (ELCImagePickerDemoAppDelegate *)[[UIApplication sharedApplication] delegate];
if ([app.viewController respondsToSelector:@selector(presentViewController:animated:completion:)]){
[app.viewController presentViewController:elcPicker animated:YES completion:nil];
} else {
[app.viewController presentModalViewController:elcPicker animated:YES];
}
[elcPicker release];
[albumController release];
}
- (IBAction)launchSpecialController
{
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
self.specialLibrary = library;
[library release];
NSMutableArray *groups = [NSMutableArray array];
[_specialLibrary enumerateGroupsWithTypes:ALAssetsGroupSavedPhotos usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
if (group) {
[groups addObject:group];
} else {
// this is the end
[self displayPickerForGroup:[groups objectAtIndex:0]];
}
} failureBlock:^(NSError *error) {
self.chosenImages = nil;
UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[NSString stringWithFormat:@"Album Error: %@ - %@", [error localizedDescription], [error localizedRecoverySuggestion]] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alert show];
[alert release];
NSLog(@"A problem occured %@", [error description]);
// an error here means that the asset groups were inaccessable.`
// Maybe the user or system preferences refused access.
}];
}
- (void)displayPickerForGroup:(ALAssetsGroup *)group
{
ELCAssetTablePicker *tablePicker = [[ELCAssetTablePicker alloc] initWithNibName: nil bundle: nil];
tablePicker.singleSelection = YES;
tablePicker.immediateReturn = YES;
ELCImagePickerController *elcPicker = [[ELCImagePickerController alloc] initWithRootViewController:tablePicker];
elcPicker.delegate = self;
tablePicker.parent = elcPicker;
// Move me
tablePicker.assetGroup = group;
[tablePicker.assetGroup setAssetsFilter:[ALAssetsFilter allAssets]];
if ([self respondsToSelector:@selector(presentViewController:animated:completion:)]){
[self presentViewController:elcPicker animated:YES completion:nil];
} else {
[self presentModalViewController:elcPicker animated:YES];
}
[tablePicker release];
[elcPicker release];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
return YES;
} else {
return toInterfaceOrientation != UIInterfaceOrientationPortraitUpsideDown;
}
}
#pragma mark ELCImagePickerControllerDelegate Methods
- (void)elcImagePickerController:(ELCImagePickerController *)picker didFinishPickingMediaWithInfo:(NSArray *)info
{
if ([self respondsToSelector:@selector(dismissViewControllerAnimated:completion:)]){
[self dismissViewControllerAnimated:YES completion:nil];
} else {
[self dismissModalViewControllerAnimated:YES];
}
for (UIView *v in [_scrollView subviews]) {
[v removeFromSuperview];
}
CGRect workingFrame = _scrollView.frame;
workingFrame.origin.x = 0;
images = [NSMutableArray arrayWithCapacity:[info count]];
for(NSDictionary *dict in info) {
UIImage *image = [dict objectForKey:UIImagePickerControllerOriginalImage];
[images addObject:image];
UIImageView *imageview = [[UIImageView alloc] initWithImage:image];
[imageview setContentMode:UIViewContentModeScaleAspectFit];
imageview.frame = workingFrame;
[_scrollView addSubview:imageview];
[imageview release];
workingFrame.origin.x = workingFrame.origin.x + workingFrame.size.width;
}
self.chosenImages = images;
NSLog(@"Images:%@",images);
[_scrollView setPagingEnabled:YES];
[_scrollView setContentSize:CGSizeMake(workingFrame.origin.x, workingFrame.size.height)];
for (int i=0; i< images.count; i++) {
NSData *image = UIImageJPEGRepresentation(images[i], 0.1);
NSLog(@"NSDATA:%@",image);
NSMutableString *urlString = [[NSMutableString alloc] initWithFormat:@"name=thefile&&filename=recording"];
[urlString appendFormat:@"%@", image];
NSLog(@"urlstring:%@",urlString);
NSData *postData = [urlString dataUsingEncoding:NSASCIIStringEncoding
allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
NSString * namecount=[NSString stringWithFormat:@"fn%i.png",i];
NSString * baseurl =[[NSString alloc]initWithFormat:@"http://199.198.12.555/serviceService.svc/serviceupload?fileName=%@",namecount];
NSURL *url = [NSURL URLWithString:baseurl];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
[urlRequest setHTTPMethod: @"POST"];
[urlRequest setValue:postLength forHTTPHeaderField:@"Content-Length"];
[urlRequest setValue:@"application/x-www-form-urlencoded"
forHTTPHeaderField:@"Content-Type"];
[urlRequest setHTTPBody:image];
NSURLConnection *connection = [NSURLConnection connectionWithRequest:urlRequest delegate:self];
[connection start];
}
NSLog(@"%@",images[0]);
NSLog(@"%lu",(unsigned long)images.count);
}
-(IBAction)upload:(id)sender{
}
- (void)elcImagePickerControllerDidCancel:(ELCImagePickerController *)picker
{
if ([self respondsToSelector:@selector(dismissViewControllerAnimated:completion:)]){
[self dismissViewControllerAnimated:YES completion:nil];
} else {
[self dismissModalViewControllerAnimated:YES];
}
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload
{
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc
{
[_specialLibrary release];
[_scrollView release];
[super dealloc];
}
@end
@implementation APActivityProvider
- (id) activityViewController:(UIActivityViewController *)activityViewController
itemForActivityType:(NSString *)activityType
{
if ( [activityType isEqualToString:UIActivityTypePostToTwitter] )
return @"This is a #twitter post!";
if ( [activityType isEqualToString:UIActivityTypePostToFacebook] )
return @"This is a facebook post!";
if ( [activityType isEqualToString:UIActivityTypeMessage] )
return @"SMS message text";
if ( [activityType isEqualToString:UIActivityTypeMail] )
return @"Email text here!";
if ( [activityType isEqualToString:@"it.albertopasca.myApp"] )
return @"OpenMyapp custom text";
return nil;
}
- (id) activityViewControllerPlaceholderItem:(UIActivityViewController *)activityViewController { return @""; }
@end
@implementation APActivityIcon
- (NSString *)activityType { return @"it.albertopasca.myApp"; }
- (NSString *)activityTitle { return @"Open Maps"; }
- (UIImage *) activityImage { return [UIImage imageNamed:@"elc-ios-icon.png"]; }
- (BOOL) canPerformWithActivityItems:(NSArray *)activityItems { return YES; }
- (void) prepareWithActivityItems:(NSArray *)activityItems { }
- (UIViewController *) activityViewController { return nil; }
- (void) performActivity {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"maps://"]];
}
@end
ありがとう