IOS Development: Customize albums, save multiple images to a custom album

1. Custom albums (compatible with IOS7 iOS8)

• - (void) Viewdidload {Search all photo albums in the library
  [Assetslibrary enumerategroupswithtypes:alassetsgroupalbum usingblock:^ (alassetsgroup *group, BOOL *stop)
  {
  Compare the names of the albums
  if ([@ "Nine-da" compare: [group Valueforproperty:alassetsgrouppropertyname]]==nsorderedsame) {
  Target album is found
  _ishavealbum = YES;
  Return
  }
  if (group==nil && _ishavealbum = = NO) {
  Photo albums is over, target album does not exist, thus create it
  __weak alassetslibrary* weakself = assetslibrary;
  
  if ([[[[Uidevice Currentdevice] systemversion] floatvalue] >= 8.0) {
  IOS 8 Code
  Create new album.
  [[Phphotolibrary Sharedphotolibrary] performchanges:^{
  [Phassetcollectionchangerequest creationrequestforassetcollectionwithtitle:@ "Nine Da"];
  } completionhandler:^ (BOOL success, Nserror *error) {
  if (!success) {
  NSLog (@ "Error creating album:%@", error);
  }
  }];
  }
  else {
  IOS 7.x Code
  Create new Assets Album
  [Assetslibrary addassetsgroupalbumwithname:@ "Nine Da" Resultblock:nil Failureblock:nil];
  }
  Should is the last iteration anyway, but just in case
  _ishavealbum = YES;
  Return
  }
  } Failureblock:nil];}

  The specific explanation I have explained in the previous blog post (http://www.cnblogs.com/cai-rd/p/4432908.html), here is not much to explain, the above code needs to add a variable ishaveablum = NO;

2. Save multiple photos in a custom album

•  for  (int  i = 0 ; I < 9 ;  I++  Use the delay to deposit once every 0.1 seconds  dispatch_after (Dispatch_time (Dispatch_time_now, int64_t) ( *i * nsec_per_sec)), Dispatch_get_main_queue (), ^{[Self SA Veimage:yourimage toalbum:  @ " rd   withcompletionblock:^{NSL OG ( @ " save s img Success   " ); }];}); 
  }  

  /** * Save pictures to Albums * * @param image < #image description#> * @param albumname < #albumName descrip tion#> * @param completionblock < #completionBlock description#>*/-(void) SaveImage: (uiimage*) Image toalbum: (nsstring*) albumname Withcompletionblock: (void(^) (void)) completionblock{alassetslibrary*assetslibrary =[[Alassetslibrary alloc] init]; //write the image data to the Assets Library (camera roll)[Assetslibrary writeimagetosavedphotosalbum:image. Cgimage Orientation: (alassetorientation) image.imageorientation completionblock:^ (nsurl* asseturl, NSError*error) {        //Error Handling        if(error!=Nil) {            //Completionblock (error);            return; }        //add the asset to the custom photo album[self Addasseturl:asseturl toalbum:albumname withcompletionblock:completionblock]; }];}-(void) Addasseturl: (nsurl*) Asseturl toalbum: (nsstring*) albumname Withcompletionblock: (void(^) (void)) completionblock{alassetslibrary*assetslibrary =[[Alassetslibrary alloc] init]; __block BOOL Albumwasfound=NO; //Search all photo albums in the Library[Assetslibrary enumerategroupswithtypes:alassetsgroupalbum usingblock:^ (alassetsgroup *group, BOOL *stop) {        //Compare the names of the albums        if([Albumname Compare: [Group valueforproperty:alassetsgrouppropertyname]]==nsorderedsame) {            //Target album is foundAlbumwasfound =YES; //get a hold of the photo ' s asset instance[Assetslibrary assetforurl:asseturl resultblock:^ (Alasset *Asset) {                 //add photo to the target album[group Addasset:asset]; //Run the completion blockCompletionblock ();                           } Failureblock:nil]; //album is found, bail out of the method            return; }                   if(Group==nil && albumwasfound==NO) {            //photo albums is over, target album does not exist, thus create it__weak alassetslibrary* weakself =assetslibrary; if([[[[Uidevice Currentdevice] systemversion] Floatvalue] >=8.0) {                //IOS 8 Code//Create new album.[[Phphotolibrary Sharedphotolibrary] performchanges:^{[Phassetcollectionchangerequest creationrequestforassetcollectionwithtitle:@"Nine da"]; } Completionhandler:^ (BOOL success, Nserror *error) {                    if(!success) {NSLog (@"Error Creating album:%@", error);            }                }]; }            Else {                //IOS 7.x Code//Create new Assets album[Assetslibrary addassetsgroupalbumwithname:albumname resultblock:^ (Alassetsgroup *Group) {                     //get the photo ' s instance[Weakself assetforurl:asseturl resultblock:^ (Alasset *Asset) {                          //add photo to the newly created album[group Addasset:asset]; //Call the completion blockCompletionblock ();                 } Failureblock:nil];                } Failureblock:nil]; Albumwasfound=YES; }                        //should is the last iteration anyway, but just in case            return; }} Failureblock:nil];}

3, need to introduce the header file

• #import <AssetsLibrary/ALAsset.h>#import <AssetsLibrary/ALAssetsLibrary.h># Import <AssetsLibrary/ALAssetsGroup.h>#import <AssetsLibrary/ALAssetRepresentation.h> #import <Photos/Photos.h>

ok~ to fix ~ Have a problem can comment ~ together to explore ~

IOS Development: Customize albums, save multiple images to a custom album