I'm developing an application that will have to send data to a server.
My php source code is this:
connection.php
<?php
$mysql_hostname = "localhost";
$mysql_user = "root";
$mysql_password = "";
$mysql_database = "app";
$db = mysql_connect($mysql_hostname, $mysql_user, $mysql_password) or die("Opps some thing went wrong");
mysql_select_db($mysql_database, $db) or die("Opps some thing went wrong");
?>
insert.php
<?php
error_reporting(0);
include("connection.php");
// vetor response
$response = array();
if( !(empty($_POST['matricula']))){
//variaveis recebendo os valores pelo método POST
$matricula=$_POST['matricula'];
$cpf=$_POST['cpf'];
$placa=$_POST['placa'];
$result = mysql_query("INSERT INTO myorder(idUser,matricula,cpf,placa) VALUES('','$matricula','$cpf','$placa')");
if($result>0){
$response["success"] = 1;
}
else{
$response["success"] = 0;
}
echo json_encode($response);
}
?>
xml :
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/et_cad_matr_car"
android:hint="@string/text_view_matricula_cad"
android:layout_below="@+id/textView_cad_main2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:id="@+id/et_cad_cpf"
android:hint="@string/texte_view_cpf"
android:layout_below="@+id/et_cad_matr_car"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/et_placa_car"
android:hint="@string/et_placa_car"
android:inputType="text"
android:layout_below="@+id/et_cad_cpf"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/button_cad_ok"
android:id="@+id/button2"
android:layout_below="@+id/et_placa_car"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:onClick="insert"/>
So I created a class called ConMain2.java to put various methods of lib volley.
The methods getInstance() , getReqQueue() , addToReqQueue() .
package br.fepi.caronasfepi;
import android.support.v7.app.AppCompatActivity;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.Volley;
public class ConMain2 extends AppCompatActivity {
private RequestQueue mRequestQueue;
private static ConMain2 mInstance;
public static synchronized ConMain2 getInstance() {
return mInstance;
}
public RequestQueue getReqQueue() {
if (mRequestQueue == null) {
mRequestQueue = Volley.newRequestQueue(getApplicationContext());
}
return mRequestQueue;
}
public <T> void addToReqQueue(Request<T> req, String tag) {
getReqQueue().add(req);
}
public <T> void addToReqQueue(Request<T> req) {
getReqQueue().add(req);
}
public void cancelPendingReq(Object tag) {
if (mRequestQueue != null) {
mRequestQueue.cancelAll(tag);
}
}
}
And finally my activity Main2.java
package br.fepi.caronasfepi;
import android.app.ProgressDialog;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import java.util.HashMap;
import java.util.Map;
public class Main2 extends AppCompatActivity {
EditText matricula;
EditText cpf;
EditText placa;
String item_matricula;
String item_cpf;
String item_placa;
RequestQueue requestQ;
ProgressDialog PD;
String url = "000.000.000.000/insert.php";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main2);//chamando o arquivo xml para a classe
PD = new ProgressDialog(this);
PD.setMessage("Carregando.....");
PD.setCancelable(false);
matricula = (EditText) findViewById(R.id.et_cad_matr_car);
cpf = (EditText) findViewById(R.id.et_cad_cpf);
placa = (EditText) findViewById(R.id.et_placa_car);
}
public void insert(View v){
PD.show();
item_matricula = matricula.getText().toString();
item_cpf = cpf.getText().toString();
item_placa = placa.getText().toString();
StringRequest postRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
PD.dismiss();
matricula.setText("");
cpf.setText("");
placa.setText("");
Toast.makeText(getApplicationContext(),
"Data Inserted Successfully",
Toast.LENGTH_SHORT).show();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
PD.dismiss();
Toast.makeText(getApplicationContext(),
"Fail", Toast.LENGTH_SHORT).show();
}
}) {
@Override
protected Map<String, String> getParams(){
Map<String, String> params = new HashMap<String, String>();
params.put("matricula", item_matricula);
params.put("cpf", item_cpf);
params.put("placa", item_placa);
return params;
}
};
ConMain2.getInstance().addToReqQueue(postRequest);
}
public void back_tb(View View) {
finish();
}
}
I'm testing the url by the IP of my server.
The error is that when I click the button to enter data the following message appears
"Unfortunately app has stopped"
And do not insert anything into the bank.
I'm following this tutorial