iOS WebP圖片格式

iOS WebP圖片格式

google出品 高清晰，體量小得圖片格式，下面說在iOS下如何使用

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#import UIImage+WebP.h

#import ViewController.h#import UIImage+WebP.h@interface ViewController ()@property (nonatomic ,strong) UIImageView *webPImageView;@property (nonatomic ,strong) UILabel *webPLabel1;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.     NSString *normalImg = [[NSBundle mainBundle] pathForResource:@changmen1 ofType:@png];        uint64_t fileSize = [[[NSFileManager defaultManager] attributesOfItemAtPath:normalImg error:nil] fileSize];            UIImage *demoImage = [UIImage imageNamed:@changmen1.png];    UIImageView *pngView = [[UIImageView alloc] initWithImage:demoImage];    pngView.frame = CGRectMake(0, 0, demoImage.size.width, demoImage.size.height);        [self.view addSubview:pngView];    UILabel *pngLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, CGRectGetMaxY(pngView.frame) + 5,300, 10)];    pngLabel.text = [NSString stringWithFormat:@%@ format file size: %.2f KB ,[[normalImg pathExtension] uppercaseString],(double)fileSize / 1024];    [pngLabel setFont:[UIFont systemFontOfSize:12]];    [self.view addSubview:pngLabel];            _webPImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, CGRectGetMaxY(pngView.frame) + 20,demoImage.size.width, demoImage.size.height)];    [self.view addSubview:_webPImageView];        _webPLabel1 = [[UILabel alloc] initWithFrame:CGRectMake(0, CGRectGetMaxY(_webPImageView.frame) + 5,300, 10)];        [_webPLabel1 setFont:[UIFont systemFontOfSize:12]];    [self.view addSubview:_webPLabel1];            [UIImage imageToWebP:demoImage quality:75.0 alpha:1.0 preset:WEBP_PRESET_PHOTO completionBlock:^(NSData *result) {        [self displayImageWithData:result];            } failureBlock:^(NSError *error) {            }];            }- (void)displayImageWithData:(NSData *)webPData{    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    NSString *webPPath = [paths[0] stringByAppendingPathComponent:@image.webp];    if ([webPData writeToFile:webPPath atomically:YES]) {        [UIImage imageWithWebP:webPPath completionBlock:^(UIImage *result) {            uint64_t fileSize = [[[NSFileManager defaultManager] attributesOfItemAtPath:webPPath error:nil] fileSize];                        _webPLabel1.text = [NSString stringWithFormat:@%@ format file size: %.2f KB ,[[webPPath pathExtension] uppercaseString],(double)fileSize / 1024];            [_webPImageView setImage:result];        } failureBlock:^(NSError *error) {                    }];    }        }

效果: