IOS-Get all the pictures on your phone

1 #import<AssetsLibrary/AssetsLibrary.h>3   4   5 /** 6 * ALAssetsLibrary.h on behalf of the library (all videos, photos) 7 ALAssetsGroup.h represents an album in the Library 8 ALAsset.h represents a video or a photo in a photo album 9 ALAssetRepresentation.h represents a description of a resource that can be retrieved into the original image*/  One   A @interfaceViewcontroller () -   -@property (Weak, nonatomic) Iboutlet Uicollectionview *CollectionView; the   -@property (nonatomic,strong) Nsmutablearray *Array; - @end  -   + @implementationviewcontroller{ -   +Alassetslibrary *Library; A   at }  -   -- (void) Viewdidload { -[Super Viewdidload]; -       -     //creating variable arrays, storing resource files  in_array =[Nsmutablearray array]; -       to     //Create a resource library for access to album Resources  +Library =[[Alassetslibrary alloc] init]; -       the     //Traverse all the albums in the Repository, how many albums are there, how many times Usingblock will be called  *[Library Enumerategroupswithtypes:alassetsgroupsavedphotos usingblock:^ (alassetsgroup *group, BOOL *stop) {  $          Panax Notoginseng         //If there is an album, then Traverse  -         if(group) { the               +             //Traverse all the resources in the album (Photos, Videos)  A[Group enumerateassetsusingblock:^ (Alasset *result, Nsuinteger index, BOOL *stop) {  the                  +                /*44 Index of the resource if (index = = 2) {46 47//Stop traverse 48 *stop = YES; +}*/ Wuyi                  the                if(Result) { -                    //storing a resource in an array  Wu[_array Addobject:result]; -                }  About                  $            }];  -         }  -           -         //refresh _collectionview reloaddata;  A[_collectionview Reloaddata]; +           the} failureblock:^ (Nserror *error) {  -           $NSLog (@"Access failed");  the     }];  the       the }  the   - #pragmaMark-uicollectionviewdelegate in   the //Number of rows  the-(Nsinteger) CollectionView: (Uicollectionview *) CollectionView numberofitemsinsection: (nsinteger) Section { About   the   the     return_array.count; the   + }  -   the //Create Uicollectionviewcell Bayi-(Uicollectionviewcell *) CollectionView: (Uicollectionview *) CollectionView Cellforitematindexpath: (NSIndexPath *) Indexpath { the       the     //if the cell is drawn in the storyboard and does not need to be registered, you need to specify an identifier in the cell  -Uicollectionviewcell *cell = [CollectionView dequeuereusablecellwithreuseidentifier:@"Cell"Forindexpath:indexpath];  -       the     //Get Picture View  theUiimageview *imgview = (Uiimageview *) [Cell.contentview Viewwithtag:1];  the       the     //Take out the corresponding resource data  -Alasset *result =_array[indexpath.row]; the       the     //get to thumbnail image  theCgimageref cimg =[result thumbnail];94       the     //Convert to UIImage  theUIImage *img =[UIImage imagewithcgimage:cimg]; the  98     //Show Pictures  AboutImgview.image =img; -     101     /**102 * Get to Original picture 103 alassetrepresentation *presentation = [result defaultrepresentation];104 the CGI Mageref resolutionimg = [Presentation fullresolutionimage];106*/107 108     returncell;109  the }111  the //Cell Size113-(Cgsize) CollectionView: (Uicollectionview *) CollectionView layout: (uicollectionviewlayout *) collectionviewlayout Sizeforitematindexpath: (Nsindexpath *) indexpath{ the  the     returnCgsizemake ( -, -);

IOS-Get all the pictures on your phone