To Get all Images from Photo Library in iphone - iphone

Question

I trying to retrive images from Photo Library & display in my app using AssetsLibrary.
I got the URL path of photos but I don't know how to get photo through it.
My Code is as Follow:
NSMutableArray* assetURLDictionaries = [[NSMutableArray alloc] init];
void (^assetEnumerator)( ALAsset *, NSUInteger, BOOL *) = ^(ALAsset *result, NSUInteger index, BOOL *stop) {
if(result != nil) {
if([[result valueForProperty:ALAssetPropertyType] isEqualToString:ALAssetTypePhoto]) {
[assetURLDictionaries addObject:[result valueForProperty:ALAssetPropertyURLs]];
NSLog(#"result is:%#",result);
NSLog(#"asset URLDictionary is:%#",assetURLDictionaries);
NSURL *url= (NSURL*) [[result defaultRepresentation]url];
[library assetForURL:url
resultBlock:^(ALAsset *asset) { [assetsp addObject:asset]; }
failureBlock:^(NSError *error){ NSLog(#"test:Fail"); } ];
}
}
};
NSMutableArray *assetGroups = [[NSMutableArray alloc] init];
void (^ assetGroupEnumerator) ( ALAssetsGroup *, BOOL *)= ^(ALAssetsGroup *group, BOOL *stop){
NSLog(#"hi");
if(group != nil) {
[group enumerateAssetsUsingBlock:assetEnumerator];
[assetGroups addObject:group];
NSLog(#"Number of assets in group :%d",[group numberOfAssets]);
}
};
assetGroups = [[NSMutableArray alloc] init];
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library enumerateGroupsWithTypes:ALAssetsGroupAll
usingBlock:assetGroupEnumerator
failureBlock:^(NSError *error) {NSLog(#"A problem occurred");}];

Answer 1

This code is fetched from some ELCImagePickerController example from here
Some modifications are done for simplification.
May this will help you
[self.assetGroup enumerateAssetsUsingBlock:^(ALAsset *result, NSUInteger index, BOOL *stop)
{
if(result == nil)
return;
UIImageView *assetImageView = [[UIImageView alloc] initWithFrame:viewFrames];
[assetImageView setContentMode:UIViewContentModeScaleToFill];
[assetImageView setImage:[UIImage imageWithCGImage:[result thumbnail]]];
}];
Happy Coding :)
NEW ANSWER
Just use
[UIImage imageWithCGImage:[[asset defaultRepresentation] fullScreenImage]]
to store image directly instead of storing the asset at the time of storing asset in assetsp
just as follow
void (^assetEnumerator)( ALAsset *, NSUInteger, BOOL *) = ^(ALAsset *result, NSUInteger index, BOOL *stop) {
if(result != nil) {
if([[result valueForProperty:ALAssetPropertyType] isEqualToString:ALAssetTypePhoto]) {
[assetURLDictionaries addObject:[result valueForProperty:ALAssetPropertyURLs]];
NSLog(#"result is:%#",result);
NSLog(#"asset URLDictionary is:%#",assetURLDictionaries);
NSURL *url= (NSURL*) [[result defaultRepresentation]url];
[library assetForURL:url
resultBlock:^(ALAsset *asset) { //Your line
//[assetsp addObject:asset];
//My Changed line will store image directly to assetsp
[assetsp addObject:[UIImage imageWithCGImage:[[asset defaultRepresentation] fullScreenImage]]];
}
failureBlock:^(NSError *error){ NSLog(#"test:Fail"); } ];
}
}
};
NEW ANSWER 1
Try this code to store the ALAsset data in mutable array
NSMutableArray *returnArray = [[NSMutableArray alloc] init];
for(ALAsset *asset in _assets) {
NSMutableDictionary *workingDictionary = [[NSMutableDictionary alloc] init];
[workingDictionary setObject:[asset valueForProperty:ALAssetPropertyType] forKey:#"UIImagePickerControllerMediaType"];
[workingDictionary setObject:[UIImage imageWithCGImage:[[asset defaultRepresentation] fullScreenImage]] forKey:#"UIImagePickerControllerOriginalImage"];
[workingDictionary setObject:[[asset valueForProperty:ALAssetPropertyURLs] valueForKey:[[[asset valueForProperty:ALAssetPropertyURLs] allKeys] objectAtIndex:0]] forKey:#"UIImagePickerControllerReferenceURL"];
[returnArray addObject:workingDictionary];
and to get the image in UIImageView just do this
NSDictionary *dict = [info objectAtIndex:i];
UIImageView *imageview = [[UIImageView alloc] initWithImage:[dict objectForKey:UIImagePickerControllerOriginalImage]];
[imageview setContentMode:UIViewContentModeScaleAspectFit];

Answer 2

My code is as follows:
- (void)viewDidLoad
{
carousel.type = iCarouselTypeCoverFlow2;
[super viewDidLoad];
xy =[[NSMutableArray alloc]init];
NSMutableArray* assetURLDictionaries = [[NSMutableArray alloc] init];
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
void (^assetEnumerator)( ALAsset *, NSUInteger, BOOL *) = ^(ALAsset *result, NSUInteger index, BOOL *stop) {
if(result != nil) {
if([[result valueForProperty:ALAssetPropertyType] isEqualToString:ALAssetTypePhoto]) {
[assetURLDictionaries addObject:[result valueForProperty:ALAssetPropertyURLs]];
NSLog(#"result is:%#",result);
NSLog(#"asset URLDictionary is:%#",assetURLDictionaries);
NSURL *url= (NSURL*) [[result defaultRepresentation]url];
[library assetForURL:url
resultBlock:^(ALAsset *asset) {
[xy addObject:[UIImage imageWithCGImage:[[asset defaultRepresentation] fullScreenImage]]];
NSLog(#" xy is:%#",xy);
image =[ [UIImageView alloc ] initWithImage:[xy objectAtIndex:0]];
NSLog(#"image is:%#",image);
}
failureBlock:^(NSError *error){ NSLog(#"test:Fail"); } ];
}
}
};
NSMutableArray *assetGroups = [[NSMutableArray alloc] init];
void (^ assetGroupEnumerator) ( ALAssetsGroup *, BOOL *)= ^(ALAssetsGroup *group, BOOL *stop) {
NSLog(#"hello");
if(group != nil) {
[group enumerateAssetsUsingBlock:assetEnumerator];
[assetGroups addObject:group];
NSLog(#"Number of assets in group :%d",[group numberOfAssets]);
NSLog(#"asset group is:%#",assetGroups);
}
};
assetGroups = [[NSMutableArray alloc] init];
[library enumerateGroupsWithTypes:ALAssetsGroupAll
usingBlock:assetGroupEnumerator
failureBlock:^(NSError *error) {NSLog(#"A problem occurred");}];