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私はログインに成功した場合はtrueを返し、そうでない場合はfalseを返すログインWeb APIを持っています。JSONParserクラスから文字列変数の値を取得するにはどうすればよいですか？
今、私はそれは私がJSONParserクラスからHttpRequest法にこのPostAsyncクラスの呼び出しの使用作られてきた理由である値を返さ取得したいです。
これらのコードです：
public class Sign_inFragment extends Fragment {
String email, password, logInResult;
EditText ev, pv;
Button bv;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.sign_in_fragment, container, false);
bv = (Button) v.findViewById(R.id.signinButton);
ev = (EditText) v.findViewById(R.id.emailTextView);
pv = (EditText) v.findViewById(R.id.passwordTextView);
bv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (ev.getText() != null && pv.getText() != null) {
email = ev.getText().toString();
password = pv.getText().toString();
new PostAsync().execute(email, password);
//logInResult = //Get the value from the API which should return true or false
}
}
});
return v;
}
}
public class PostAsync extends AsyncTask<String, String, JSONObject> {
JSONParser jsonParser = new JSONParser();
private ProgressDialog pDialog;
private static final String LOGIN_URL = "http://my-api.mydoctorfinder.com/logger";
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
/*@Override
protected void onPreExecute() {
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Attempting login...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}*/
@Override
protected JSONObject doInBackground(String... args) {
try {
HashMap<String, String> params = new HashMap<>();
params.put("email", args[0]);
params.put("password", args[1]);
Log.d("request", "starting");
JSONObject json = jsonParser.makeHttpRequest(
LOGIN_URL, "POST", params);
if (json != null) {
Log.d("JSON result", json.toString());
return json;
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(JSONObject json) {
int success = 0;
String message = "";
if (pDialog != null && pDialog.isShowing()) {
pDialog.dismiss();
}
if (json != null) {
//Toast.makeText(MainActivity.this, json.toString(),
//Toast.LENGTH_LONG).show();
try {
success = json.getInt(TAG_SUCCESS);
message = json.getString(TAG_MESSAGE);
} catch (JSONException e) {
e.printStackTrace();
}
}
if (success == 1) {
Log.d("Success!", message);
}else{
Log.d("Failure", message);
}
}
}
public class JSONParser {
String charset = "UTF-8";
HttpURLConnection conn;
DataOutputStream wr;
StringBuilder result;
URL urlObj;
JSONObject jObj = null;
StringBuilder sbParams;
String paramsString;
String logInResult;
public JSONObject makeHttpRequest(String url, String method, HashMap<String, String> params) {
sbParams = new StringBuilder();
int i = 0;
for (String key : params.keySet()) {
try {
if (i != 0){
sbParams.append("&");
}
sbParams.append(key).append("=")
.append(URLEncoder.encode(params.get(key), charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
i++;
}
if (method.equals("POST")) {
// request method is POST
try {
urlObj = new URL(url);
conn = (HttpURLConnection) urlObj.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Accept-Charset", charset);
conn.setReadTimeout(10000);
conn.setConnectTimeout(15000);
conn.connect();
paramsString = sbParams.toString();
wr = new DataOutputStream(conn.getOutputStream());
wr.writeBytes(paramsString);
wr.flush();
wr.close();
} catch (IOException e) {
e.printStackTrace();
}
}
else if(method.equals("GET")){
// request method is GET
if (sbParams.length() != 0) {
url += "?" + sbParams.toString();
}
try {
urlObj = new URL(url);
conn = (HttpURLConnection) urlObj.openConnection();
conn.setDoOutput(false);
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept-Charset", charset);
conn.setConnectTimeout(15000);
conn.connect();
} catch (IOException e) {
e.printStackTrace();
}
}
try {
//Receive the response from the server
InputStream in = new BufferedInputStream(conn.getInputStream());
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
result = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
}
Log.d("JSON Parser", "result: " + result.toString());
logInResult = result.toString();//I want to get the value of this String variable.
} catch (IOException e) {
e.printStackTrace();
}
conn.disconnect();
// try parse the string to a JSON object
try {
jObj = new JSONObject(result.toString());
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON Object
return jObj;
}
}
ここで、オブジェクトを呼び出し側のクラスに戻すためには、引き続きインターフェイスを使用する必要があります。私は見る... –
待って、どこでparseCustomObjectメソッドを取得しましたか？ –
あなたはそれを自分で実装する必要があります。擬似コードであり、動作コードではありません。 –