IOS-Get all photos in the system album

# Import <assetslibrary/assetslibrary. h>

-(Void) getimgs {

Dispatch_async (dispatch_get_main_queue (), ^ {

NSAID utoreleasepool * Pool = [[NSAID utoreleasepoolalloc]
Init];

Alassetslibraryaccessfailureblock failureblock = ^ (nserror * myerror ){

Nslog (@ "album Access failed =%@", [myerrorlocalizeddescription]);

If ([myerror. localizeddescription
Rangeofstring: @ "Global denied access"]. location! = Nsnotfound ){

Nslog (@ "unable to access the album. Please go to 'settings-> locate service' and set it to open .");

} Else {

Nslog (@ "album Access failed .");

}

};

Alassetsgroupenumerationresultsblock groupenumeration = ^ (alasset * result, nsuinteger index,
Bool * Stop ){

If (result! = NULL ){

If ([[result valueforproperty: alassetpropertytype] isequaltostring: alassettypephoto]) {

Nsstring * urlstr = [nsstring
Stringwithformat: @ "% @", result. defaultrepresentation. url]; // The image URL

/* Result. defaultrepresentation. fullscreenimage // large image

Result. thumbnail // thumbnail of the image

// Nsange range1 = [urlstr rangeofstring: @ "id ="];

// Nsstring * resultname = [urlstr substringfromindex: range1.location + 3];

// Resultname = [resultname stringbyreplacingoccurrencesofstring: @ "& ext =" withstring: @ "."]; // format Demo: 123456.png

*/

[Self. _ dataarray addobject: urlstr];

}

}

};

Alassetslibrarygroupsenumerationresultsblock

Librarygroupsenumeration = ^ (alassetsgroup * group, bool * Stop ){

If (group = nil)

{

}

If (group! = Nil ){

Nsstring * g = [nsstring
Stringwithformat: @ "% @", group]; // gets the album Group

Nslog (@ "GG: % @", g );//GG: alassetsgroup
-Name: camera roll, type: saved photos, assets count: 71

Nsstring * G1 = [g substringfromindex: 16];

Nsarray * arr = [nsarray arraywitharray: [g1componentsseparatedbystring: @ ","];

Nsstring * g2 = [[arr objectatindex: 0] substringfromindex: 5];

If ([G2 isequaltostring: @ "camera roll"]) {

G2 = @ "camera film ";

}

Nsstring * groupname = G2; // group name

[Groupenumerateassetsusingblock: groupenumeration];

}

};

Alassetslibrary * library = [[alassetslibraryalloc]
Init];

[Libraryenumerategroupswithtypes: alassetsgroupall

Usingblock: librarygroupsenumeration

Failureblock: failureblock];

[Library
Release];

[Pool
Release];

});

}

// ------------------------ Reverse image Extraction Based on the image URL -----

Alassetslibrary * assetlibrary = [[alassetslibraryalloc]
Init];

Nsurl * url = [nsurlurlwithstring: urlstr];

[Assetlibrary
Assetforurl: URL resultblock: ^ (alasset * asset ){

Uiimage * image = [uiimage
Imagewithcgimage: asset. thumbnail];

Cellimageview. Image = image;

} Failureblock: ^ (nserror * error ){

Nslog (@ "error = % @", error );

}

];

//---------------------