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カメラロールから写真を読み込む際にメモリに問題があります。私はストーリーボードとARC（自動参照カウント）を使用しています。私が3番目または4番目の写真をインポートすると、アプリがクラッシュし、実際に楽器が空き物理メモリの下にメモリが残っていないことが示されます。私は@autoreleasepoolsを使用してみましたが、動作していないよう：フォトライブラリからイメージを読み込むときにメモリリークが発生する
- (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
{
}
助けてください！前もって感謝します。
