NameValuePair, HttpParams, HttpConnection Params deprecated on server request class for login app

Question

First time asking a question here, and new to android programming. I\'m following an online youtube tutorial to create a login by user \"Tonikami TV\". Everything is fine wi

Answer 1

You can use the following code which uses the standard java and android methods

 @Override
protected Void doInBackground(Void... params) {
    //Use HashMap, it works similar to NameValuePair
    Map<String,String> dataToSend = new HashMap<>();
    dataToSend.put("firstname", user.FirstName);
    dataToSend.put("lastname", user.LastName);
    dataToSend.put("age", user.Age + "");
    dataToSend.put("emailaddress", user.EmailAddress);
    dataToSend.put("password", user.Password);

    //Server Communication part - it's relatively long but uses standard methods

    //Encoded String - we will have to encode string by our custom method (Very easy)
    String encodedStr = getEncodedData(dataToSend);

    //Will be used if we want to read some data from server
    BufferedReader reader = null;

    //Connection Handling
    try {
        //Converting address String to URL
        URL url = new URL(SERVER_ADDRESS + "Register.php");
        //Opening the connection (Not setting or using CONNECTION_TIMEOUT)
        HttpURLConnection con = (HttpURLConnection) url.openConnection();

        //Post Method
        con.setRequestMethod("POST");
        //To enable inputting values using POST method 
        //(Basically, after this we can write the dataToSend to the body of POST method)
        con.setDoOutput(true);
        OutputStreamWriter writer = new OutputStreamWriter(con.getOutputStream());
        //Writing dataToSend to outputstreamwriter
        writer.write(encodedStr);
        //Sending the data to the server - This much is enough to send data to server
        //But to read the response of the server, you will have to implement the procedure below
        writer.flush();

        //Data Read Procedure - Basically reading the data comming line by line
        StringBuilder sb = new StringBuilder();
        reader = new BufferedReader(new InputStreamReader(con.getInputStream()));

        String line;
        while((line = reader.readLine()) != null) { //Read till there is something available
            sb.append(line + "\n");     //Reading and saving line by line - not all at once
        }
        line = sb.toString();           //Saving complete data received in string, you can do it differently

        //Just check to the values received in Logcat
        Log.i("custom_check","The values received in the store part are as follows:");
        Log.i("custom_check",line);

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if(reader != null) {
            try {
                reader.close();     //Closing the 
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    //Same return null, but if you want to return the read string (stored in line)
    //then change the parameters of AsyncTask and return that type, by converting
    //the string - to say JSON or user in your case
    return null;
}

The getEncodedData method (Simple to understand)

private String getEncodedData(Map<String,String> data) {
        StringBuilder sb = new StringBuilder();
        for(String key : data.keySet()) {
            String value = null;
            try {
                value = URLEncoder.encode(data.get(key),"UTF-8");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }

            if(sb.length()>0)
                sb.append("&");

            sb.append(key + "=" + value);
        }
        return sb.toString();
    }