ios--Initial Knowledge Cache

Nsuserdefaults+hmreader.h

#import <Foundation/Foundation.h>@interface  nsuserdefaults (hmreader)/*  * /+ (instancetype) hm_shareuserdefaults; @end

Nsuserdefaults+hmreader.m

#import "Nsuserdefaults+hmreader.h"@implementationnsuserdefaults (Hmreader)+(instancetype) hm_shareuserdefaults{StaticNsuserdefaults *__instance =Nil; Staticdispatch_once_t Oncetoken; Dispatch_once (&oncetoken, ^{nsstring*bundleid =[NSBundle Mainbundle].bundleidentifier; Bundleid= [Bundleid stringbyappendingstring:@". HM"]; __instance=[[Nsuserdefaults alloc] Initwithsuitename:bundleid];    }); return__instance;}@end

Use, for example, to cache string data:

#define Kisfirstcomesiteviewkey  @ "Com.hmreader.HMBookSiteWebViewController.FirstComeSite"//  Cache Storage [[Nsuserdefaults hm_shareuserdefaults] SetObject: @isFirstLoad forkey: Kisfirstcomesiteviewkey];    [[Nsuserdefaults hm_shareuserdefaults] synchronize]; // Read Cache NSString *hasshow = [[Nsuserdefaults hm_shareuserdefaults] objectforkey:kisfirstcomesiteviewkey];

ios--Initial Knowledge Cache