1204Swift WKWebview加载本地gif

1.导入头文件：
import WebKit
2.设置WKWebView

let gifView = WKWebView(frame: CGRect(x: 0, y: NaviHigh, width: ScreenWidth, height: ScreenHeight - NaviHigh - TabBarHigh))`

获取图片的路径并转换为URL

let urlStr = URL(fileURLWithPath: Bundle.main.path(forResource: "QY-LOAD", ofType: "gif")!)

下面若直接var gifData : Data = Data(contentsOf: urlStr)的话，会报错Call can throw, but it is not marked with 'try' and the error is not handled，原因是：在OC中[NSData dataWithContentsOfFile:@"路径" options:<#(NSDataReadingOptions)#> error:错误处理]，和Swift对比发现Swift缺少错误处理，因此如果不加try...catch会报错，此处用try...catch处理下异常情况即可

var gifData : Data = Data()
do{
    gifData = try Data(contentsOf: urlStr)
}
catch { }
gifView.isUserInteractionEnabled = false
gifView.load(gifData , mimeType: "image/gif", characterEncodingName: "UTF-8", baseURL: urlStr)
loadView.addSubview(gifView)`