根据我的研究,将Android代码翻译成Swift代码没有多大帮助。在一些帮助下,我们能够翻译或转换一些代码,但还没有完全完成。当我运行代码时,我得到一个错误:
Response could not be serialized, input data was nil or zero length.
responseSerializationFailed(reason: Alamofire.AFError.ResponseSerializationFailureReason.inputDataNilOrZeroLength)
public static final MediaType MEDIA_TYPE = MediaType.parse("application/json");
ProgressDialog progress;
private void payoutRequest() {
progress = new ProgressDialog(this);
progress.setTitle("Processing your payout ...");
progress.setMessage("Please Wait .....");
progress.setCancelable(false);
progress.show();
// HTTP Request ....
final OkHttpClient client = new OkHttpClient();
// in json - we need variables for the hardcoded uid and Email
JSONObject postData = new JSONObject();
try {
postData.put("uid", FirebaseAuth.getInstance().getCurrentUser().getUid());
postData.put("email", mPayoutEmail.getText().toString());
} catch (JSONException e) {
e.printStackTrace();
}
// Request body ...
RequestBody body = RequestBody.create(MEDIA_TYPE, postData.toString());
// Build Request ...
final Request request = new Request.Builder()
.url("https://us-central1-myapp.cloudfunctions.net/payout")
.post(body)
.addHeader("Content-Type", "application/json")
.addHeader("cache-control", "no-cache")
.addHeader("Authorization", "Your Token")
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
// something went wrong right off the bat
progress.dismiss();
}
@Override
public void onResponse(Call call, Response response) throws IOException {
// response successful ....
// refers to response.status('200') or ('500')
int responseCode = response.code();
if (response.isSuccessful()) {
switch(responseCode) {
case 200:
Snackbar.make(findViewById(R.id.layout),
"Payout Successful!", Snackbar.LENGTH_LONG)
.show();
break;
case 500:
Snackbar.make(findViewById(R.id.layout),
"Error: no payout available", Snackbar
.LENGTH_LONG).show();
break;
default:
Snackbar.make(findViewById(R.id.layout),
"Error: couldn't complete the transaction",
Snackbar.LENGTH_LONG).show();
break;
}
} else {
Snackbar.make(findViewById(R.id.layout),
"Error: couldn't complete the transaction",
Snackbar.LENGTH_LONG).show();
}
progress.dismiss();
}
});
}
上述安卓代码中使用的Swift代码:
let url = "https://us-central1-myapp.cloudfunctions.net/payout"
let headers: HTTPHeaders = [
"Content-Type": "application/json",
"cache-control": "Your Token"]
Alamofire.request(url, method: .get, headers: headers).validate().responseJSON { (response) in
switch response.result {
case .success(let value):
// you fall here once you get 200 success code, because you use .validate() when you make call.
print(value)
// parse your JSON here.
let parameters : [String: Any] =
["uid": FIRAuth.auth()!.currentUser!.uid,
"email": self.paypalEmailText.text!]
let postData = try! JSONSerialization.data(withJSONObject: parameters, options: [])
case .failure(let error):
if response.response?.statusCode == 500 {
print("Error no payout available")
print(error.localizedDescription)
} else {
print("Error: couldn't complete the transaction")
print(error.localizedDescription)
}
}
}
如何将Android代码转换成Swift代码,或者发现我做错了什么?此代码用于发布到我为Firebase创建的函数。
在这篇文章中提供的代码的帮助下,我能够写出这段代码,但仍然出现相同的错误:
===========Error===========
Error Code: 4
Error Messsage: Response could not be serialized, input data was nil or zero length.
response FAILURE: responseSerializationFailed(reason: Alamofire.AFError.ResponseSerializationFailureReason.inputDataNilOrZeroLength)
let url = "https://us-central1-myapp.cloudfunctions.net/payout"
let headers: HTTPHeaders = [
"Content-Type": "application/json",
"cache-control": "Your Token"]
let params : [String: Any] = [
"uid": FIRAuth.auth()!.currentUser!.uid,
"email": self.paypalEmailText.text!]
Alamofire.request(url, method: .post, parameters: params, encoding: JSONEncoding.default, headers: headers).validate().responseJSON { (response) in
switch response.result {
case .success(let JSON):
print("Success with JSON: \(JSON)")
if (response.result.value as? [String:AnyObject]) != nil {
// Access your response here
print(response.result.value!)
}
break
case .failure(let error):
if response.response?.statusCode == 500 {
print("Error no payout available")
print(print("Request failed with error: \(error.localizedDescription)"))
} else {
print("Error: couldn't complete the transaction")
print("\n\n===========Error===========")
print("Error Code: \(error._code)")
print("Error Messsage: \(error.localizedDescription)")
}
}
print("response \(response)")
}
我编辑了我的方法:
let url = "https://us-central1-myapp.cloudfunctions.net/payout"
let headers: HTTPHeaders = [
"cache-control": "no-cache",
"Authorization": "Your Token",
"Content-Type": "application/json"]
let parameters : [String: Any] = [
"uid": uid,
"email": self.paypalEmailText.text!
]
Alamofire.request(url, method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: headers).validate(statusCode: 200..<600).responseJSON { (response) in
print("Request: \(String(describing: response.request))") // original url request
print("Result: \(response.result)") // response serialization result
if response.response?.statusCode == 200 {
print("Success with JSON: \(String(describing: response.result.value))")
} else {
let error = (response.result.value as? [[String : AnyObject]])
print(error as Any)
}
print("response \(response)")
}
答复和打印件如下:
Request: Optional(https://us-central1-myapp.cloudfunctions.net/payout)
Result: FAILURE
Success with JSON: nil
response FAILURE: responseSerializationFailed(reason: Alamofire.AFError.ResponseSerializationFailureReason.inputDataNilOrZeroLength)
