SD_WebImageの3つのフレームワークの簡単な使用

#import "ViewController.h"

#import "UIImageView+WebCache.h"


@interface ViewController ()
@property(nonatomic,weak)IBOutlet UIButton *button;
@property(nonatomic,weak)IBOutlet UIImageView *imageView;


@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    

    // Do any additional setup after loading the view, typically from a nib.
}

-(IBAction)btnClick:(id)sender
{
    NSString* urlStr = @"http://farm3.staticflickr.com/2846/9823925914_78cd653ac9_b_d.jpg";
    
    //    NSString* urlStr = @"http://photo.candou.com/i/114/826ea823e8ffe792a6fda9e126f6c404";
    
    NSURL *url = [NSURL URLWithString:urlStr];
   
    [self setImage:url];
}

#pragma mark -SDWebImage -

-(void)setImage:(NSURL *)url
{
    //1. 
    //[self.imageView sd_setImageWithURL:url];
    //2.block  
//    [self.imageView sd_setImageWithURL:url completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {
//        NSLog(@"image:%@,error:%@,imageURL%@",image,error,imageURL);
//    }];
    
//    [self.imageView sd_setImageWithURL:url placeholderImage:[UIImage imageNamed:@"default"]];
    
//    [self.imageView sd_setImageWithURL:url placeholderImage:[UIImage imageNamed:@"default"] completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {
//        NSLog(@" ");
//    }];
//
    // 
    [self.imageView sd_setImageWithURL:url placeholderImage:[UIImage imageNamed:@"default"] options:SDWebImageRetryFailed];
    
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end