Ich habe ein Speicherproblem beim Importieren von Fotos aus der Kamerarolle. Ich verwende Storyboard und ARC (automatische Referenzzählung). Wenn ich das 3. oder 4. Foto importiere, stürzt die App ab, und tatsächlich zeigt das Gerät unter freiem physischem Speicher, dass kein Speicher mehr übrig ist. Ich habe versucht, mit @autoreleasepools, aber es scheint nicht zu funktionieren:Speicherverlust beim Importieren von Bildern aus der Fotobibliothek
- (void)viewDidLoad {
@autoreleasepool {
[super viewDidLoad];
UIBarButtonItem *cameraButton = [[UIBarButtonItem alloc]
initWithTitle:@"Camera"
style:UIBarButtonItemStyleBordered
target:self
action:@selector(useCamera:)];
UIBarButtonItem *cameraRollButton = [[UIBarButtonItem alloc]
initWithTitle:@"Camera Roll"
style:UIBarButtonItemStyleBordered
target:self
action:@selector(useCameraRoll:)];
NSArray *items = [NSArray arrayWithObjects: cameraButton,
cameraRollButton, nil];
[toolbar setItems:items animated:NO];
mouseMoved = 0;
}}
- (IBAction) useCamera: (id)sender
{
if ([UIImagePickerController isSourceTypeAvailable:
UIImagePickerControllerSourceTypeCamera])
{
UIImagePickerController *imagePicker =
[[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType =
UIImagePickerControllerSourceTypeCamera;
imagePicker.mediaTypes = [NSArray arrayWithObjects:
(NSString *) kUTTypeImage,
nil];
imagePicker.allowsEditing = NO;
[self presentModalViewController:imagePicker
animated:YES];
newMedia = YES;
}else{
NSLog(@"Camera is not available");
UIAlertView *alert1 = [[UIAlertView alloc] initWithTitle:@"Important message" message:@"Unfortunately the camera is not available on your device." delegate:self cancelButtonTitle:@"Ok" otherButtonTitles: nil];
[alert1 show];
}
}
- (IBAction) useCameraRoll: (id)sender
{
@autoreleasepool {
if ([self.popoverController isPopoverVisible]) {
[self.popoverController dismissPopoverAnimated:YES];
} else{
}{
if ([UIImagePickerController isSourceTypeAvailable:
UIImagePickerControllerSourceTypeSavedPhotosAlbum])
{
@autoreleasepool {
UIImagePickerController *imagePicker =
[[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType =
UIImagePickerControllerSourceTypePhotoLibrary;
imagePicker.mediaTypes = [NSArray arrayWithObjects:
(NSString *) kUTTypeImage,
nil];
imagePicker.allowsEditing = YES;
self.popoverController = [[UIPopoverController alloc]
initWithContentViewController:imagePicker];
}
popoverController.delegate = self;
[self.popoverController
presentPopoverFromBarButtonItem:sender
permittedArrowDirections:UIPopoverArrowDirectionUp
animated:YES];
newMedia = NO;
}}
}
}
-(void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[self.popoverController dismissPopoverAnimated:true];
@autoreleasepool {
NSString *mediaType = [info
objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
UIImage *image = [info
objectForKey:UIImagePickerControllerOriginalImage];
image1.image = image;
if (newMedia)
UIImageWriteToSavedPhotosAlbum(image,
self,
@selector(image:finishedSavingWithError:contextInfo:),
nil);
}
else if ([mediaType isEqualToString:(NSString *)kUTTypeMovie])
{
// Code here to support video if enabled
}}
}
-(void)image:(UIImage *)image
finishedSavingWithError:(NSError *)error
contextInfo:(void *)contextInfo
{
if (error) {
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle: @"Save failed"
message: @"Failed to save image"\
delegate: nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
}
}
-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
}
bitte helfen !! Danke im Voraus.