加载gif

NSData *gifData = [NSDatadataWithContentsOfFile:[[NSBundlemainBundle] pathForResource:@"750-1334"ofType:@"gif"]];

    UIWebView *webView = [[UIWebViewalloc] initWithFrame:self.view.bounds];

    [webViewsetScalesPageToFit: YES];//此句一定要加，刚开始折腾了好长时间不出来，加上它才出来

    [self.viewaddSubview:webView];

    [webView loadData:gifDataMIMEType:@"image/gif"textEncodingName:@""baseURL:[NSURLURLWithString:@""]];