Egy androidos alkalmazást próbálok elkészíteni, elég nehezen megy. Az alkalmazás a regisztrációkor egyszerűen leáll egy ismeretlen hiba miatt. Hol lehet a hiba?

Android Studioval dolgozom.

Van egy BackgroundTaskom:

package com.example.kristf.php;

import android.app.Activity;

import android.app.ProgressDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.os.AsyncTask;

import android.support.v7.app.AlertDialog;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.io.OutputStreamWriter;

import java.net.HttpURLConnection;

import java.net.MalformedURLException;

import java.net.URL;

import java.net.URLEncoder;

/**

* Created by Kristóf on 2016. 06. 28..

*/

public class BackgroundTask extends AsyncTask<String, Void, String> {

String register_url = "localhost/loginapp/register.php";

Context ctx;

Activity activity;

ProgressDialog progressDialog;

AlertDialog.Builder builder;

public BackgroundTask(Context ctx){

this.ctx = ctx;

activity = (Activity)ctx;

}

@Override

protected void onPreExecute() {

builder = new AlertDialog.Builder(activity);

progressDialog = new ProgressDialog(ctx);

progressDialog.setTitle("Please wait");

progressDialog.setMessage("Connecting to server...");

progressDialog.setIndeterminate(true);

progressDialog.setCancelable(false);

progressDialog.show();

}

@Override

protected String doInBackground(String... params) {

String method = params[0];

if(method.equals("register"))

{

try {

progressDialog.dismiss();

URL url = new URL(register_url);

HttpURLConnection httpURLConnection = (HttpURLConnection)url.openConnection();

httpURLConnection.setRequestMethod("POST");

httpURLConnection.setDoOutput(true);

httpURLConnection.setDoInput(true);

OutputStream outputStream = httpURLConnection.getOutputStream();

BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream,"UTF-8"));

String name = params[1];

String email = params[2];

String password = params[3];

String data = URLEncoder.encode("name", "UTF-8")+"="+URLEncoder.encode("name", "UTF-8")+"&"+

URLEncoder.encode("email", "UTF-8")+"="+URLEncoder.encode("email", "UTF-8")+"&"+

URLEncoder.encode("password", "UTF-8")+"="+URLEncoder.encode("password", "UTF-8");

bufferedWriter.write(data);

bufferedWriter.flush();

bufferedWriter.close();

outputStream.close();

InputStream inputStream = httpURLConnection.getInputStream();

BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));

StringBuilder stringBuilder = new StringBuilder();

String line = "";

while ((line=bufferedReader.readLine())!=null)

{

stringBuilder.append(line+"\n");

}

httpURLConnection.disconnect();

Thread.sleep(5000);

return stringBuilder.toString().trim();

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} catch (InterruptedException e) {

e.printStackTrace();

}

}

return null;

}

@Override

protected void onProgressUpdate(Void... values) {

super.onProgressUpdate(values);

}

@Override

protected void onPostExecute(String json) {

try {

JSONObject jsonObject = new JSONObject(json);

JSONArray jsonArray = jsonObject.getJSONArray("server_response");

JSONObject JO = jsonArray.getJSONObject(0);

String code = JO.getString("code");

String message = JO.getString("message");

if(code.equals("reg_true"))

{

showDialog("Registration Success", message, code);

}

else if(code.equals("reg_false"))

{

showDialog("Registration Failed", message, code);

}

} catch (JSONException e) {

e.printStackTrace();

}

}

public void showDialog(String title, String message, String code)

{

builder.setTitle(title);

if(code.equals("reg_true")||code.equals("reg_false"))

{

builder.setMessage(message);

builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.dismiss();

activity.finish();

}

});

AlertDialog alertDialog = builder.create();

alertDialog.show();

}

}

}

Van egy LoginActivitym:

package com.example.kristf.php;

import android.content.Intent;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.TextView;

public class LoginActivity extends AppCompatActivity {

TextView signup_text;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_login);

signup_text = (TextView)findViewById(R.id.sign_up);

signup_text.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View v){

startActivity(new Intent(LoginActivity.this, RegisterActivity.class));

}

});

}

}

És végül egy RegisterActivitym:

package com.example.kristf.php;

import android.content.DialogInterface;

import android.os.Bundle;

import android.support.v7.app.AlertDialog;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

public class RegisterActivity extends AppCompatActivity {

EditText Name,Email,Pass,ConPass;

Button reg_button;

AlertDialog.Builder builder;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_register);

Name = (EditText)findViewById(R.id.reg_name);

Email = (EditText)findViewById(R.id.reg_email);

Pass = (EditText)findViewById(R.id.reg_password);

ConPass = (EditText)findViewById(R.id.reg_con_password);

reg_button = (Button)findViewById(R.id.reg_button);

reg_button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

if(Name.getText().toString().equals("")||Email.getText().toString().equals("")||Pass.getText().toString().equals(""))

{

builder = new AlertDialog.Builder(RegisterActivity.this);

builder.setTitle("Something went wrong...");

builder.setMessage("Please fill all the fields...");

builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.dismiss();

}

});

AlertDialog alertDialog = builder.create();

alertDialog.show();

}else if (!(Pass.getText().toString().equals(ConPass.getText().toString())))

{

builder = new AlertDialog.Builder(RegisterActivity.this);

builder.setTitle("Something went wrong...");

builder.setMessage("Your passwords aren't matching...");

builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.dismiss();

Pass.setText("");

ConPass.setText("");

}

});

AlertDialog alertDialog = builder.create();

alertDialog.show();

}

else

{

BackgroundTask backgroundTask = new BackgroundTask(RegisterActivity.this);

backgroundTask.execute("register", Name.getText().toString(),Email.getText().toString(),Pass.getText().toString());

}

}

});

}

}

Ha megtaláltad a hibát, akkor írjál kérlek. Már 1-2 órája csak ülök felette, de nem értem! :(