application s’arrête après le lancement

j'ai creer une application pour le login (phpmyadmin)

LoginActivity.java

Code:

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package com.example.logapp;
 
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
 
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
 
 
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
 
 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
 
 
public class LogActivity extends Activity {
 
    private EditText editTextUserName;
    private EditText editTextPassword;
 
    public static final String USER_NAME = "USERNAME";
 
    String login;
    String mdp;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_log);
 
        editTextUserName = (EditText) findViewById(R.id.editTextUserName);
        editTextPassword = (EditText) findViewById(R.id.editTextPassword);
    }
 
    public void invokeLogin(View view){
        login = editTextUserName.getText().toString();
        mdp = editTextPassword.getText().toString();
 
        login(login,mdp);
 
    }
 
    private void login(final String login, String mdp) {
 
        class LoginAsync extends AsyncTask<String, Void, String>{
 
            private Dialog loadingDialog;
 
            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                loadingDialog = ProgressDialog.show(LogActivity.this, "Please wait", "Loading...");
            }
 
            @Override
            protected String doInBackground(String... params) {
                String uname = params[0];
                String pass = params[1];
 
                InputStream is = null;
                List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
                nameValuePairs.add(new BasicNameValuePair("login", uname));
                nameValuePairs.add(new BasicNameValuePair("mdp", pass));
                String result = null;
 
                try{
                    HttpClient httpClient = new DefaultHttpClient();
                    HttpPost httpPost = new HttpPost(
                            "http://localhost/bd.php");
                    httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
 
                    HttpResponse response = httpClient.execute(httpPost);
 
                    HttpEntity entity = response.getEntity();
 
                    is = entity.getContent();
 
                    BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"), 8);
                    StringBuilder sb = new StringBuilder();
 
                    String line = null;
                    while ((line = reader.readLine()) != null)
                    {
                        sb.append(line + "\n");
                    }
                    result = sb.toString();
                } catch (ClientProtocolException e) {
                    e.printStackTrace();
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return result;
            }
 
            @Override
            protected void onPostExecute(String result){
                String s = result.trim();
                loadingDialog.dismiss();
                if(s.equalsIgnoreCase("success")){
                    Intent intent = new Intent(LogActivity.this, UserProfile.class);
                    intent.putExtra(USER_NAME, login);
                    finish();
                    startActivity(intent);
                }else {
                    Toast.makeText(getApplicationContext(), "Invalid User Name or Password", Toast.LENGTH_LONG).show();
                }
            }
        }
 
        LoginAsync la = new LoginAsync();
        la.execute(login, mdp);
 
    }
 
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.log, menu);
        return true;
    }
 
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
 
        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
 
        return super.onOptionsItemSelected(item);
    }
}

pour xml

Code:

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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:orientation="vertical"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".LogActivity">
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="User Name"
        android:id="@+id/textView" />
 
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editTextUserName" />
 
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Password"
        android:id="@+id/textView2" />
 
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:inputType="textPassword"
        android:ems="10"
        android:id="@+id/editTextPassword" />
 
    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Login"
        android:onClick="invokeLogin"
        android:id="@+id/button" />
</LinearLayout>

et pour le script php

Code:

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<?php
define('HOST','');
define('USER','root');
define('PASS','');
define('DB','intervention');
 
$con = mysqli_connect(HOST,USER,PASS,DB);
 
$login = $_POST['login'];
$mdp = $_POST['mdp'];
 
$sql = "select * from user where login='$login' and mdp='$mdp'";
 
$res = mysqli_query($con,$sql);
 
$check = mysqli_fetch_array($res);
 
if(isset($check)){
echo 'success';
}else{
echo 'failure';
}
 
mysqli_close($con);
?>

apres que d'enter le log et mdp l'application s’arrête j'ai tester sur téléphone merci de m'aider