本地存储图片

最新推荐文章于 2023-07-23 10:00:47 发布

原创最新推荐文章于 2023-07-23 10:00:47 发布 · 1.2k 阅读

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文章标签：

#图片 #uiimage

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//将图片保存到本地

+
 (void)SaveImageToLocal:(UIImage*)image
 Keys:(NSString*)key
 {

    NSUserDefaults*
 preferences = [NSUserDefaults

standardUserDefaults];

    //[preferences
 persistentDomainForName:LocalPath];

    [preferences
 setObject:UIImagePNGRepresentation(image) forKey:key];

}

//本地是否有相关图片

+
 (BOOL)LocalHaveImage:(NSString*)key
 {

    NSUserDefaults*
 preferences = [NSUserDefaults

standardUserDefaults];

    //[preferences
 persistentDomainForName:LocalPath];

    NSData*
 imageData = [preferences objectForKey:key];

    if

(imageData) {

        return

YES;

    }

    return

NO;

}

//从本地获取图片

+
 (UIImage*)GetImageFromLocal:(NSString*)key
 {

    NSUserDefaults*
 preferences = [NSUserDefaults

standardUserDefaults];

    //[preferences
 persistentDomainForName:LocalPath];

    NSData*
 imageData = [preferences objectForKey:key];

    UIImage*
 image;

    if

(imageData) {

        image
 = [UIImage imageWithData:imageData];

    }

    else

{

        NSLog(@"未从本地获得图片");

    }

    return

image;

}