メモリの問題によりドキュメントディレクトリに10以上のイメージを保存しようとしました。複数のイメージをカメラロールから保存して、メモリの問題によりクラッシュしたドキュメントディレクトリ
-(void) importArrayDictionary: (NSArray *) arrayDictionary ToFolder: (NSString *) folderDestination {
_requestOptions = [[PHImageRequestOptions alloc] init];
_requestOptions.resizeMode = PHImageRequestOptionsResizeModeExact;
_requestOptions.deliveryMode = PHImageRequestOptionsDeliveryModeHighQualityFormat;
_requestOptions.synchronous = true;
//kch-data
dispatch_queue_t importQueue = dispatch_queue_create("importQueue", NULL);
dispatch_async(importQueue, ^{
for(PHAsset *asset in arrayDictionary){
//dispatch_async(dispatch_get_main_queue(), ^{
[self createFileWithName: [self generateNewFileName:[self getTypeFromDictionary:asset]] Folder: folderDestination Item:asset];
//});
}
//Notify delegate
dispatch_async(dispatch_get_main_queue(), ^{
if (self.delegate != nil && [self.delegate respondsToSelector:@selector(pgDataSourceDidFinishImportingFiles:)])
[self.delegate pgDataSourceDidFinishImportingFiles: self];
});
});
}
ここに保存するコードがあります。私は主画像から3つの異なるサイズの画像を作り、これらの画像を文書ディレクトリに保存しています。最後に、メインイメージをドキュメントディレクトリに保存します。 1つのイメージの保存が完了すると、メモリは解放されません。私はこれが問題だと思う。
-(NSString *) createFileWithName: (NSString *) name Folder: (NSString *) folder Item: (PHAsset *) aDicItem {//kch-data
__block UIImage *_imageThumb;
//
PHImageManager *manager = [PHImageManager defaultManager];
[manager requestImageForAsset:aDicItem
targetSize:PHImageManagerMaximumSize
contentMode:PHImageContentModeDefault
options:_requestOptions
resultHandler:^void(UIImage *image, NSDictionary *info) {
_imageThumb = image;
}];
//UIImage *_imageThumb = [aDicItem objectForKey:@"UIImagePickerControllerOriginalImage"];
//Thumb110
//CGSize size = _imageThumb.size;
UIImage *thumbImage110 = [_imageThumb thumbnailImage:200 transparentBorder:0 cornerRadius:0 interpolationQuality: kCGInterpolationHigh];
//thumbImage110 = [_imageThumb imageWithImage:_imageThumb scaledToFillSize:size];
[UIImageJPEGRepresentation(thumbImage110, 0.75) writeToFile: [self getThumbnail110PathForFilename: name] atomically:YES];
//Thumb150
UIImage *thumbImage150 = [_imageThumb thumbnailImage:200 transparentBorder:0 cornerRadius:0 interpolationQuality: kCGInterpolationHigh];
[UIImageJPEGRepresentation(thumbImage150, 0.75) writeToFile: [self getThumbnail150PathForFilename: name] atomically:YES];
NSString *filePath;
NSString *folderPath = [self.itmesDir stringByAppendingPathComponent: folder];
if([[NSUserDefaults standardUserDefaults] boolForKey:FAKE_MODE]){
folderPath = [self.fakeDir stringByAppendingPathComponent: folder];
}
filePath = [folderPath stringByAppendingPathComponent: name];
NSCharacterSet *chss = [NSCharacterSet characterSetWithCharactersInString:@"'#%^&{}[]/~|\?.<,"];
NSString *dbFilename = [[name componentsSeparatedByCharactersInSet:chss] componentsJoinedByString:@""];
if(aDicItem.mediaType == 1){
[UIImageJPEGRepresentation(_imageThumb, 1.0) writeToFile: filePath atomically:YES];
NSLog(@"file path = %@",filePath);
}
//Return file path
return filePath;
}