Question

我使用这段代码上传图片：

    FBSDKGraphRequest(graphPath: "me/photos", parameters: params as [NSObject : AnyObject], HTTPMethod: "POST").startWithCompletionHandler({ (connection, result, error) -> Void in

        if (error != nil) {
            print ("failed")
        }
        else {
            print ("success")
        }

    })

到目前为止工作正常，但上传可能需要一段时间，我想告知用户当前的进度。有没有办法获得当前的进展？正如我在SDK文档中看到的那样，有一个FBSDKGraphRequestConnection在FBSDKGraphRequestConnectionDelegate中提供requestConnection:didSendBodyData:totalBytesWritten:totalBytesExpectedToWrite:进度内容但我无法理解，如何在我的小pice中实现这些内容代码有人可以帮忙吗？

Answer 1

我有其他人有同样的问题...谷歌找不到任何用swift写的东西。这是我的工作解决方案：

1）从NSObject和FBSDKGraphRequestConnectionDelegate

中获取您的课程

2）写下你的上传过程：

    let uploadRequest = FBSDKGraphRequest(graphPath: "me/photos", parameters: params as [NSObject : AnyObject], HTTPMethod: "POST")
    let connection = FBSDKGraphRequestConnection()
    connection.delegate = self
    connection.addRequest(uploadRequest, completionHandler: {
        (connection, result, error) -> Void in

        if (error != nil) {
            // error handling
        }
        else {
            // success handling
        }
    })
    connection.start()

3）在你的班级中实现这样的委托：

func requestConnection(connection:FBSDKGraphRequestConnection, didSendBodyData bytesWritten:NSInteger, totalBytesWritten:NSInteger, totalBytesExpectedToWrite:NSInteger) {
    print("upload percent reached: " + String(Double(totalBytesWritten) / Double(totalBytesExpectedToWrite)))

    // handle your UI here to show the current status
}

使用swift从Facebook SDK GraphRequest获得进展

1 个答案: