IOS--初識緩衝

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NSUserDefaults+HMReader.h

#import <Foundation/Foundation.h>@interface NSUserDefaults (HMReader)/** * 用於緩衝app自有業務相關的資料資訊 */+ (instancetype)hm_shareUserDefaults;@end

NSUserDefaults+HMReader.m

#import "NSUserDefaults+HMReader.h"@implementation NSUserDefaults (HMReader)+ (instancetype)hm_shareUserDefaults{    static NSUserDefaults *__instance = nil;    static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{        NSString *bundleId = [NSBundle mainBundle].bundleIdentifier;        bundleId = [bundleId stringByAppendingString:@".hm"];        __instance = [[NSUserDefaults alloc] initWithSuiteName:bundleId];    });    return __instance;}@end

使用,以緩衝字串資料為例:

#define kisFirstComeSiteViewKey  @"com.hmreader.HMBookSiteWebViewController.FirstComeSite"//緩衝儲存[[NSUserDefaults hm_shareUserDefaults] setObject:@isFirstLoad forKey:kisFirstComeSiteViewKey];    [[NSUserDefaults hm_shareUserDefaults] synchronize];//讀取緩衝NSString *hasShow = [[NSUserDefaults hm_shareUserDefaults] objectForKey:kisFirstComeSiteViewKey];

 

IOS--初識緩衝