我正在使用Rubymotion创建一个iOS应用程序。我正在尝试进行分段上传的图像。
我使用此代码进行上传,但出现错误:
data = {token: "2xCGdzcuEeNzhst3Yaa8f", task: 1, message: "message", latitude: 1, longitude: 1}
client = AFHTTPClient.alloc.initWithBaseURL(NSURL.URLWithString("http://api.example.com/api/v1/"))
request = client.multipartFormRequestWithMethod('POST', path:"messages", parameters:data, constructingBodyWithBlock:lambda{ |form_data|
image_data = UIImagePNGRepresentation(image.image)
form_data.appendPartWithFileData(image_data, name:'new_avatar', fileName:'new_avatar.png', mimeType:'image/png')
})
operation = AFJSONRequestOperation.alloc.initWithRequest(request)
operation.setCompletionBlockWithSuccess(lambda{ |operation, responseObject| puts 'all done!'})
我收到此错误:
undefined method `setCompletionBlockWithSuccess' for #<AFJSONRequestOperation:0xb227f00> (NoMethodError)
据我所知,操作是一个有效的对象,应该有这个方法。我在这里错过了什么吗?
更新 1
这是我更新的代码,但是当我运行它时,POST操作似乎没有触发。我是否仍然缺少任何代码?我也没有收到任何错误。
data = {token: "2xCGdzcuEeNzhs5tYaa8f", task: 1, message: "message", latitude: 1, longitude: 1}
client = AFHTTPClient.alloc.initWithBaseURL(NSURL.URLWithString("http://api.example.com/api/v1/"))
request = client.multipartFormRequestWithMethod('POST', path:"messages", parameters:data, constructingBodyWithBlock:lambda{ |form_data|
image_data = UIImagePNGRepresentation(image.image)
form_data.appendPartWithFileData(image_data, name:'new_avatar', fileName:'new_avatar.png', mimeType:'image/png')
})
operation = AFJSONRequestOperation.alloc.initWithRequest(request)
operation.setCompletionBlockWithSuccess(lambda { |operation, responseObject| puts 'all done!'},
failure: lambda { |operation, error| puts 'error' })
请求对象输出以下内容:
<NSMutableURLRequest:195641792 - url: http://api.example.com/api/v1/messages,
headers: {"Content-Length"=>"118200", "Content-Type"=>"multipart/form-data; boundary=Boundary+0xAbCdEfGbOuNdArY", "Accept-Language"=>"en, fr, de, ja, nl, it, es, pt, pt-PT, da, fi, nb, sv, ko, zh-Hans, zh-Hant, ru, pl, tr, uk, ar, hr, cs, el, he, ro, sk, th, id, ms, en-GB, ca, hu, vi, en-us;q=0.8", "User-Agent"=>"theapp/1.0 (iPhone Simulator; iOS 6.0; Scale/1.00)"},
cache policy: 0, Pipelining: false, main doc url: , timeout: 60.0, network service type: 0 >
操作对象输出以下内容:
<AFJSONRequestOperation:0xa78c660>
方法签名setCompletionBlockWithSuccess(lambda..., failure: lambda...)
-- 您需要添加一个失败参数。像这样:
operation.setCompletionBlockWithSuccess(lambda { |operation, responseObject| puts 'all done!'},
failure: lambda { |operation, error| puts 'error' })
此外,还需要确保实际启动请求操作:
operation.start
有关此方法的定义,请参阅 https://github.com/AFNetworking/AFNetworking/blob/master/AFNetworking/AFJSONRequestOperation.m#L102-L103。
我写了一个类来做这种工作。 在这里查看我的答案。 它使用 AFNetworking,并包括用于基本网络请求的方法。