I am creating change password functionality in my android application which crashing on getResponsecode()

Question

I have provided onCreate() and New password method where on debugging, it is crashing on getResponsecode(). It is crashing and not getting response. It is not going to get response from server.

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.change_password_activity);
        list(getIntent().getExtras().getString("JSON_Object"));
        CurrentPwdCheck();
        NewpwdCheck();

        btnSubmit= (Button) findViewById(R.id.btnSubmit);
        btnSubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                try {
                    NewPwd();
                } catch (IOException e) {
                    e.printStackTrace();

                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        });
    }

    public void NewPwd() throws IOException, JSONException {

        String myPwd=new_pwd.getText().toString();

        String Surl="http://inmeets.com/ChangePwd.php?uid="+uid+"&NewPwd="+myPwd;

        URL url = null;
        HttpURLConnection conn = null;


            url = new URL(Surl);
        conn = (HttpURLConnection)url.openConnection();
        conn.setRequestMethod("GET");
        conn.setConnectTimeout(1000);
       if( conn.getResponseCode()==203) {
           Toast.makeText(getBaseContext(), "your password changed", Toast.LENGTH_SHORT).show();
       }
    }

android.os.NetworkOnMainThreadException java.io.FileNotFoundException: /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state: open failed: ENOENT (No such file or directory) — aishwaryak, Apr 21 '17 at 08:43
@GowthamSubramaniam no sir I am using filesystem concept and storing it on html file on server for backend I have used php should I put php code here ? — aishwaryak, Apr 21 '17 at 08:47
@KuldeepKulkarni i e I should do in this way ? conn.getResponseCode(); if(conn.getResponseCode()==200) {Toast.makeText(getBaseContext(), "your password changed", Toast.LENGTH_SHORT).show(); } — aishwaryak, Apr 21 '17 at 08:50
@Gowtham Subramaniam my php code Email==$_GET["uid"] && $json_parse[0]->Password==$password) echo $data; ?> — aishwaryak, Apr 21 '17 at 08:53
are you trying write data to the sd card in some where of your application? — chalitha geekiyanage, Apr 21 '17 at 08:53
@chalitha geekiyanage no I am writing it in json string on html file — aishwaryak, Apr 21 '17 at 08:54
@aishwaryak I don't know about PHP. But in my case i won't import any php files for this concept. We get only JSON Response for common web service concepts — Gowtham Subramaniam, Apr 21 '17 at 08:56
@ Gowtham Subramaniam yes sir but I am unable to get response from server side this php file is on server.I am not importing it. I am just getting response from it. — aishwaryak, Apr 21 '17 at 08:59
@GowthamSubramaniam yes those files are needed only to save data on server — aishwaryak, Apr 21 '17 at 09:03

score 0 · Answer 1 · answered Apr 21 '17 at 08:54

0

You can not perform network actions from main thread because it will slow down the UI. Create a new AsyncTask to interact with your server.

answered Apr 21 '17 at 08:54

Bertram Gilfoyle

9,899
6
42
67

ok there is only option of async Task only ? to separet it from main thread ? – aishwaryak Apr 21 '17 at 08:56
There are many options but AsyncTask is most common. Is there any problem with AsyncTask ? – Bertram Gilfoyle Apr 21 '17 at 08:58
@ Ahamad Anees no there is no problem for async task there is problem with getting response from server while debugging my apllication is crashing on getting response – aishwaryak Apr 21 '17 at 09:01
1

AsyncTask will be better and easy. – Gowtham Subramaniam Apr 21 '17 at 09:01
Check wheather your Response equals to your JSON Response? – Gowtham Subramaniam Apr 21 '17 at 09:03
@Ahmad Anees what are the other options ??to perform netwrok operation? – aishwaryak Apr 21 '17 at 09:04
[here](http://stackoverflow.com/questions/30416158/android-alternatives-to-asynctask) are many. But still I dont't understand why are you not using it. – Bertram Gilfoyle Apr 21 '17 at 09:05
@GowthamSubramaniam how to check response is equal to JsonResponse ? – aishwaryak Apr 21 '17 at 09:06
@AhamadAnees ok yes i wil use async task only ! I am creating chatting application.in that I am using asyncTask for almost all activities does it write way to code ? – aishwaryak Apr 21 '17 at 09:08
I don't understand what you mean by "does it write way to code". – Bertram Gilfoyle Apr 21 '17 at 09:11
Get Response code from JSON and compare it with this concept. Because you can easily find where you getting error. [Click Here](https://pastebin.com/DQviEPaM) – Gowtham Subramaniam Apr 21 '17 at 09:15
@AhamadAnees i e sir does it use async task for each activity ?? – aishwaryak Apr 21 '17 at 09:18
Yes.But in your case, it is not the cause of app crash. Can you include complete logcat ? – Bertram Gilfoyle Apr 21 '17 at 09:19
@AhamadAnees FATAL EXCEPTION: main Process: com.example.aishwarya.registerlogin, PID: 23846 android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1273) – aishwaryak Apr 21 '17 at 09:26
@AhamadAnees sir I am unable to paste here full logcat as this textbox don't permit me to it on stackoverflow – aishwaryak Apr 21 '17 at 09:28
It is ok. Network on main thread is the reason. Try with AsyncTask. It will work – Bertram Gilfoyle Apr 21 '17 at 09:29
@AhamadAnees AsyncTask Code Reference for aishwaryak – Gowtham Subramaniam Apr 21 '17 at 09:51
Oh sorry i didn't notice the link. – Bertram Gilfoyle Apr 21 '17 at 09:52
Its Okay... Refer this link [Source Code](https://pastebin.com/TqfH4Gpp) – Gowtham Subramaniam Apr 21 '17 at 09:53

score 0 · Answer 2 · edited Apr 21 '17 at 13:01

You can also use thread instead of AsyncTask. But AsyncTask would be preferably good because it is intelligent than thread in thread you have to manage all thing like run network call on background and update the UI in main thread. If you really want some different than AsyncTask bellow is the thread concept

    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.change_password_activity);
            list(getIntent().getExtras().getString("JSON_Object"));
            CurrentPwdCheck();
            NewpwdCheck();

            btnSubmit= (Button) findViewById(R.id.btnSubmit);
            btnSubmit.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {

                    try {
                       NewPasword pwd = new NewPasword();
                       pwd.start(); 
                    } catch (IOException e) {
                        e.printStackTrace();

                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            });
        }

    class NewPasword extends Thread{
            @Override
            public void run() {
            String myPwd=new_pwd.getText().toString();

            String Surl="http://inmeets.com/ChangePwd.php?uid="+uid+"&NewPwd="+myPwd;

            URL url = null;
            HttpURLConnection conn = null;


                url = new URL(Surl);
            conn = (HttpURLConnection)url.openConnection();
            conn.setRequestMethod("GET");
            conn.setConnectTimeout(1000);
           if( conn.getResponseCode()==203) {
     getActivity().runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                                   Toast.makeText(getBaseContext(), "your password 
                     changed", Toast.LENGTH_SHORT).show();
                    }
                });

           }
            }
        }

I am creating change password functionality in my android application which crashing on getResponsecode()

2 Answers2