HCI ispit

Button btnLogin = (Button) findViewById(R.id.loginBtn);
        btnLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                do_btnLogin_click();
            }
        });
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private EditText txtUsername;
txtUsername = (EditText) findViewById(R.id.usernameInput);
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Toast.makeText(MainActivity.this, "Molimo popunite sva polja.", Toast.LENGTH_LONG).show();
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ProgressDialog progressDialog;
progressDialog = ProgressDialog.show(MainActivity.this, "Logiranje", "U toku");
progressDialog.show();
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new AsyncTask<Void, Void, AutentifikacijaProvjeraViewModel>() {
            ProgressDialog progressDialog;

            @Override
            protected void onPreExecute() {
                progressDialog = ProgressDialog.show(MainActivity.this, "Logiranje", "U toku");
                progressDialog.show();
            }

            @Override
            protected AutentifikacijaProvjeraViewModel doInBackground(Void... params) {
                return AutentifikacijaApi.Provjera(txtUsername.getText().toString(), txtPassword.getText().toString());
            }


            @Override
            protected void onPostExecute(AutentifikacijaProvjeraViewModel result) {
                if (result.Id == 0) {
                    Toast.makeText(MainActivity.this, "Korisnik ne postoji!", Toast.LENGTH_LONG).show();
                } else {
                    Toast.makeText(MainActivity.this, "Welcome back " + result.Ime, Toast.LENGTH_LONG).show();
                    Global.isThisInitialLoad = true;
                    Global.korisnik = result;
                    Intent i = new Intent(getApplicationContext(), PocetniActivity.class);
                    startActivity(i);
                }
                progressDialog.dismiss();
            }
        }.execute();

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    public static AutentifikacijaProvjeraViewModel Provjera(String username, String password)
    {
        String strJson= HttpManager.responseGet("http://192.168.0.15:21951/api/autentikacija/provjera",
                new BasicNameValuePair("email",username),
                new BasicNameValuePair("password",password)
        );

        //System.out.println("Ovo ispod je JSON string");
        //System.out.println(strJson);

        Gson gson= new Gson();
        AutentifikacijaProvjeraViewModel x = gson.fromJson(strJson, AutentifikacijaProvjeraViewModel.class);

        return x;


    }
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public class HttpManager {
    public static String responseGet(String url, NameValuePair... inputParams) {
        String urlParams = URLEncodedUtils.format(Arrays.asList(inputParams), "utf-8");
        HttpGet httpGet = new HttpGet(url + "?" + urlParams);

        DefaultHttpClient client = new DefaultHttpClient();


        try {
            HttpResponse response = client.execute(httpGet);
            //InputStream stream= response.getEntity().getContent();
            HttpEntity entity = response.getEntity();
            InputStream stream = entity.getContent();

            String convertedFromStreamToJsonString = convertStreamToString(stream);

            //System.out.println(convertedFromStreamToJsonString);
            stream.close();

            //return convertStreamToString(stream);
            return convertedFromStreamToJsonString;

        } catch (IOException e) {
            Log.e("Error u HttpManageru", e.getMessage());
            return null;
              }
    }
    public static String convertStreamToString(InputStream inputStream) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
        StringBuilder stringBuilder = new StringBuilder();
        String line = null;

        while ((line = bufferedReader.readLine()) != null) {
            stringBuilder.append(line + "\n");
        }
        return stringBuilder.toString();
    }
}
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private void do_btnOstaviUtisak_click(String utisak, int utisakBroj) {
        String message = "";

        final UtisakViewModel utisakForPost = new UtisakViewModel();
        utisakForPost.KorisnikId = Global.korisnik.Id;
        utisakForPost.Misljenje = utisak;
        utisakForPost.Rating = utisakBroj;
        utisakForPost.ProizvodId = Global.trenutnoSelektovaniProizvod.Id;

        //if (UtisciApi.PostUtisak(utisakForPost))
        //    message = "Utisak uspjesno dodan";
        //else
        //    message = "Greska! Utisak nije dodan.";


        RequestQueue MyRequestQueue = Volley.newRequestQueue(this);
        StringRequest MyStringRequest = new StringRequest(Request.Method.POST, "http://192.168.0.15:21951/api/Utisci/PostUtisak/", new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                //This code is executed if the server responds, whether or not the response contains data.
                //The String 'response' contains the server's response.
                Toast.makeText(OstaviUtisakActivity.this, "Utisak uspjesno ostavljen.", Toast.LENGTH_LONG).show();
                Intent i = new Intent(getApplicationContext(), ProizvodDetailjiActivity.class);
                i.putExtra("proizvodId", String.valueOf(Global.trenutnoSelektovaniProizvod.Id));
                startActivity(i);
            }
        }, new Response.ErrorListener() { //Create an error listener to handle errors appropriately.
            @Override
            public void onErrorResponse(VolleyError error) {
                //This code is executed if there is an error.
                Toast.makeText(OstaviUtisakActivity.this, "Greska! Utisak nije spasen, molimo pokusajte kasnije.", Toast.LENGTH_LONG).show();
            }
        }) {
            protected Map<String, String> getParams() {
                Map<String, String> MyData = new HashMap<String, String>();
                //MyData.put("Field", "Value"); //Add the data you'd like to send to the server.
                MyData.put("Id", "0");
                MyData.put("IsDeleted", "0");
                MyData.put("Misljenje", utisakForPost.Misljenje);
                MyData.put("Rating", String.valueOf(utisakForPost.Rating));
                MyData.put("KorisnikId", String.valueOf(utisakForPost.KorisnikId));
                MyData.put("ProizvodId", String.valueOf(utisakForPost.ProizvodId));

                return MyData;
            }
        };
        MyRequestQueue.add(MyStringRequest);
    }
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LINKOVI:

http://www.tutorialsbuzz.com/2014/06/android-dialogfragment-listview.html   - za onaj dialog fragment sto je bio na prosloom roku
http://www.androidhive.info/2011/08/how-to-switch-between-activities-in-android/  - Intent
http://www.androidinterview.com/android-custom-listview-with-image-and-text-using-arrayadapter/ -listview sa slikama

_______________________________VISE PARAMETARA U ROUTE NA API CONTROLERU___________________________________
http://stackoverflow.com/questions/10937524/how-should-i-pass-multiple-parameters-to-an-asp-net-web-api-get
--odgovor od Mark Pieszak

-inace sam googlao ovako
https://www.google.ba/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=set%20route%20for%20api%20controller%20with%202%20parameters

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