change a sprite image in cocos2d iOS

CCTexture2D *firstImage = [[CCTextureCache sharedTextureCache] addImage:@"Image1.png"];

CCTexture2D *secondImage = [[CCTextureCache sharedTextureCache] addImage:@"Image2.png"];

CCSprite *sprite = [CCSprite spriteWithTexture: firstImage];

[self addChild:sprite];

 change the image of the sprite to secondImage:- 

sprite.texture = secondImage;

Determine device (iPhone,iPad , iPod Touch) with iPhone SDK

if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

        {

            NSLog(@"I'm iPad");

    } else {

    NSString *deviceType = [UIDevice currentDevice].model;

                if([deviceType rangeOfString:@"iPhone"].location!=NSNotFound)

                {

                    NSLog(@"I m iPhone");

                } else {

                    NSLog(@" I'm  iPod");

                }

}

Point the user back to the Location Services screen in the Settings app

[[UIApplication sharedApplication] openURL:[NSURL URLWithString: @"prefs:root=LOCATION_SERVICES"]];




Get Custom Album name Using ALAsset Library IOS ....

 __block ALAssetsGroup* groupToAddTo;

    [self.library enumerateGroupsWithTypes:ALAssetsGroupAlbum

                                usingBlock:^(ALAssetsGroup *group, BOOL *stop) {

                                     NSLog(@"[group valueForProperty:ALAssetsGroupPropertyName]  %@", [group valueForProperty:ALAssetsGroupPropertyName] );

                                    if ([[group valueForProperty:ALAssetsGroupPropertyName] isEqualToString:albumName]) {

                                        NSLog(@"found album %@", albumName);

                                        groupToAddTo = group;

                                    }

                                }

                              failureBlock:^(NSError* error) {

                                  NSLog(@"failed to enumerate albums:\nError: %@", [error localizedDescription]);

                              }];

Save Image to document directory IOS:-

Save Image to document directory:-

- (void)saveImage {

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:@"savedImage.png"];

    NSLog(@"savedImagePath..%@",savedImagePath);

    NSData *imageData = UIImagePNGRepresentation(Image);

    [imageData writeToFile:savedImagePath atomically:YES];  

    

  

}

Get Original Image from Photolibrary using ALAsset IOS

Get Original Image from Photolibrary:-

 ALAssetRepresentation *rep = [[dataContainer objectAtIndex:indexPath+1] defaultRepresentation];

    CGImageRef iref = [rep fullResolutionImage];

    if (iref) {

        UIImage *image = [UIImage imageWithCGImage:iref];

    }

Get images from photolibrary using ALAsset.... IOS

- (void)getImagesFromPhotoLibrary{ 

void (^assetsEnumeration)(ALAsset *,NSUInteger,BOOL *) = ^(ALAsset *asset,NSUInteger index,BOOL *stop){

        

        if(asset!=nil)

        {

            NSLog(@"obtained Asset %@",[asset valueForProperty:ALAssetPropertyURLs]);

            

            [self.dataContainer addObject:asset];

            NSLog(@"assest...%@",asset);

             [self setImage];

             

        }

       NSLog(@"data container...%@",self.dataContainer); 

    };

    

    void (^assetsGroupEnumeration)(ALAssetsGroup *,BOOL *) = ^(ALAssetsGroup *group,BOOL *status){

        

        if(group!=nil)

        {

            [group enumerateAssetsUsingBlock:assetsEnumeration];

        }

        

    };

    // allocate the library

    library = [[ALAssetsLibrary alloc]init];

    

    [library enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:assetsGroupEnumeration failureBlock:^(NSError *error) {

        NSLog(@"Error :%@", [error localizedDescription]);

    }];

}

Set Image:-

    [imageview.image setImage:[UIImage imageWithCGImage:[(ALAsset*)[dataContainer objectAtIndex:indexPath ]thumbnail]]];