androidloginandregistration v2

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oid Login and Registration with PHP, MySQL and SQLite http://www.androidhive.info/2012/01/android-login-and-registra

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create databaseandroid_api /** Creating Database**/

use android_api /** Selecting Database**/

create tableusers(id int(11) primary keyauto_increment,

unique_id varchar(23) not null unique,name varchar(50) not null,email varchar(100) not null unique,encrypted_password varchar(80) not null,salt varchar(10) not null,created_at datetime,updated_at datetime null

); /** Creating Users Table**/


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CONFIG.PHP


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DB_CONNECT.PHP


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// destructorfunction__destruct() {

}

/**

* Storing new user* returns user details*/

public functionstoreUser($name, $email, $password) {$uuid= uniqid('', true);$hash= $this->hashSSHA($password);$encrypted_password= $hash["encrypted"]; // encrypted password$salt= $hash["salt"]; // salt

$stmt= $this->conn->prepare("INSERT INTO users(unique_id, name, email,$stmt->bind_param("sssss", $uuid, $name, $email, $encrypted_password, $s$result= $stmt->execute();

$stmt->close();

// check for successful storeif($result) {

$stmt= $this->conn->prepare("SELECT * FROM users WHERE email = ?");$stmt->bind_param("s", $email);$stmt->execute();$user= $stmt->get_result()->fetch_assoc();$stmt->close();

return$user;} else{

returnfalse;}}

/*** Get user by email and password*/

public functiongetUserByEmailAndPassword($email, $password) {

$stmt= $this->conn->prepare("SELECT * FROM users WHERE email = ?");

$stmt->bind_param("s", $email);

if($stmt->execute()) {$user= $stmt->get_result()->fetch_assoc();$stmt->close();return$user;

} else{returnNULL;

}}

/*** Check user is existed or not


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$stmt->bind_param("s", $email);

$stmt->execute();

$stmt->store_result();

if($stmt->num_rows > 0) {// user existed$stmt->close();returntrue;

} else{// user not existed$stmt->close();returnfalse;

}}

/*** Encrypting password* @param password* returns salt and encrypted password*/

public functionhashSSHA($password) {

$salt= sha1(rand());$salt= substr($salt, 0, 10);$encrypted= base64_encode(sha1($password. $salt, true) . $salt);$hash= array("salt"=> $salt, "encrypted"=> $encrypted);return$hash;

}

/*** Decrypting password* @param salt, password* returns hash string*/

public functioncheckhashSSHA($salt, $password) {

$hash= base64_encode(sha1($password. $salt, true) . $salt);

return$hash;}

}

?>


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REGISTER.PHP


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LOGIN.PHP


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{"error": false,"uid": "55fa7220a2c187.50984590","user": {

"name": "Ravi Tamada","email": "[email protected]","created_at": "2015-09-17 13:26:16","updated_at": null

}}

{"error": 1,"error_msg": "Unknown error occurred in registration!"

}


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,"error_msg": "User already existed with [email protected]"

}

{"error": false,"uid": "55fa7220a2c187.50984590","user": {

"name": "Ravi Tamada","email": "[email protected]","created_at": "2015-09-17 13:26:16","updated_at": null

}}

{"tag": "login","success": 0,"error": 1,"error_msg": "Login credentials are incorrect. Please try again!"

}


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BUILD.GRADLE

dependencies {compile 'com.android.support:appcompat-v7:21.0.3'compile 'com.android.support:support-v4:21.0.3'compile 'com.mcxiaoke.volley:library-aar:1.0.0'

}

STRINGS.XML

Android Login and RegistrationEmailPasswordFullnameLOGINREGISTERNot a member? Sign up now.Already registred! Login Me.WelcomeLOGOUTFullname


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.

#26ae90#2e3237#428bca

#ffffff#222222#999999#888888#3b4148#5e6266#26ae90#eceef1#333333#ff6861

APPCONFIG.JAVA

packageinfo.androidhive.loginandregistration.app;

public classAppConfig {// Server user login urlpublic staticString URL_LOGIN = "http://192.168.0.102:8888/android_login_ap

// Server user register urlpublic staticString URL_REGISTER = "http://192.168.0.102:8888/android_login

}

APPCONTROLLER.JAVA

packageinfo.androidhive.loginandregistration.app;


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mportcom.andro d.volley.Request;importcom.android.volley.RequestQueue;importcom.android.volley.toolbox.Volley;

public classAppController extendsApplication {

public static finalString TAG = AppController.class.getSimpleName();

privateRequestQueue mRequestQueue;

private staticAppController mInstance;

@Overridepublic voidonCreate() {

super.onCreate();mInstance = this;

}

public static synchronizedAppController getInstance() {returnmInstance;

}

publicRequestQueue getRequestQueue() {if(mRequestQueue == null) {

mRequestQueue = Volley.newRequestQueue(getApplicationContext());}

returnmRequestQueue;}

public voidaddToRequestQueue(Request req, String tag) {req.setTag(TextUtils.isEmpty(tag) ? TAG : tag);getRequestQueue().add(req);

}

public voidaddToRequestQueue(Request req) {req.setTag(TAG);getRequestQueue().add(req);

}

public voidcancelPendingRequests(Object tag) {if(mRequestQueue != null) {

mRequestQueue.cancelAll(tag);

}}

}


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ANDROIDMANIFEST.XML


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SESSIONMANAGER.JAVA

packageinfo.androidhive.loginandregistration.helper;

importandroid.content.Context;importandroid.content.SharedPreferences;importandroid.content.SharedPreferences.Editor;importandroid.util.Log;

public classSessionManager {// LogCat tagprivate staticString TAG = SessionManager.class.getSimpleName();

// Shared PreferencesSharedPreferences pref;

Editor editor;Context _context;

// Shared pref modeintPRIVATE_MODE = 0;

// Shared preferences file nameprivate static finalString PREF_NAME = "AndroidHiveLogin";

private static finalString KEY_IS_LOGGEDIN = "isLoggedIn";

publicSessionManager(Context context) {this._context = context;pref = _context.getSharedPreferences(PREF_NAME, PRIVATE_MODE);editor = pref.edit();

}

public voidsetLogin(booleanisLoggedIn) {

editor.putBoolean(KEY_IS_LOGGEDIN, isLoggedIn);

// commit changeseditor.commit();

Log.d(TAG, "User login session modified!");

}

public booleanisLoggedIn(){returnpref.getBoolean(KEY_IS_LOGGEDIN, false);

}}


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SQLITEHANDLER.JAVA

/*** Author: Ravi Tamada

* URL: www.androidhive.info* twitter: http://twitter.com/ravitamada* */

packageinfo.androidhive.loginandregistration.helper;

importandroid.content.ContentValues;importandroid.content.Context;importandroid.database.Cursor;importandroid.database.sqlite.SQLiteDatabase;importandroid.database.sqlite.SQLiteOpenHelper;importandroid.util.Log;

importjava.util.HashMap;

public classSQLiteHandler extendsSQLiteOpenHelper {

private static finalString TAG = SQLiteHandler.class.getSimpleName();

// All Static variables// Database Versionprivate static final intDATABASE_VERSION = 1;

// Database Nameprivate static finalString DATABASE_NAME = "android_api";

// Login table nameprivate static finalString TABLE_USER = "user";

// Login Table Columns namesprivate static finalString KEY_ID = "id";private static finalString KEY_NAME = "name";private static finalString KEY_EMAIL = "email";private static finalString KEY_UID = "uid";private static finalString KEY_CREATED_AT = "created_at";

publicSQLiteHandler(Context context) {super(context, DATABASE_NAME, null, DATABASE_VERSION);

}

// Creating Tables@Overridepublic voidonCreate(SQLiteDatabase db) {

String CREATE_LOGIN_TABLE = "CREATE TABLE "+ TABLE_USER + "("+ KEY_ID + " INTEGER PRIMARY KEY,"+ KEY_NAME + " TEXT,"+ KEY_EMAIL + " TEXT UNIQUE,"+ KEY_UID + " TEXT,"+ KEY_CREATED_AT + " TEXT"+ ")";

db.execSQL(CREATE_LOGIN_TABLE);

Log.d(TAG, "Database tables created");


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Overr depublic voidonUpgrade(SQLiteDatabase db, intoldVersion, intnewVersion) {

// Drop older table if existeddb.execSQL("DROP TABLE IF EXISTS "+ TABLE_USER);

// Create tables again

onCreate(db);}

/*** Storing user details in database* */

public voidaddUser(String name, String email, String uid, String created_atSQLiteDatabase db = this.getWritableDatabase();

ContentValues values = newContentValues();values.put(KEY_NAME, name); // Namevalues.put(KEY_EMAIL, email); // Email

values.put(KEY_UID, uid); // Emailvalues.put(KEY_CREATED_AT, created_at); // Created At

// Inserting Rowlongid = db.insert(TABLE_USER, null, values);db.close(); // Closing database connection

Log.d(TAG, "New user inserted into sqlite: "+ id);}

/*** Getting user data from database

* */publicHashMap getUserDetails() {HashMap user = newHashMap();String selectQuery = "SELECT * FROM "+ TABLE_USER;

SQLiteDatabase db = this.getReadableDatabase();Cursor cursor = db.rawQuery(selectQuery, null);// Move to first rowcursor.moveToFirst();if(cursor.getCount() > 0) {

user.put("name", cursor.getString(1));user.put("email", cursor.getString(2));user.put("uid", cursor.getString(3));

user.put("created_at", cursor.getString(4));}cursor.close();db.close();// return userLog.d(TAG, "Fetching user from Sqlite: "+ user.toString());

returnuser;}

/**


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SQL teDatabase db = th s.getWr tableDatabase ;// Delete All Rowsdb.delete(TABLE_USER, null, null);db.close();

Log.d(TAG, "Deleted all user info from sqlite");

}

}

ACTIVITY_LOGIN.XML


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andro d: d=" + d/password"android:layout_width="fill_parent"android:layout_height="wrap_content"android:layout_marginBottom="10dp"android:background="@color/white"android:hint="@string/hint_password"

android:inputType="textPassword"android:padding="10dp"android:singleLine="true"android:textColor="@color/input_login"android:textColorHint="@color/input_login_hint"/>

LOGINACTIVITY.JAVA

/*** Author: Ravi Tamada* URL: www.androidhive.info* twitter: http://twitter.com/ravitamada


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mportandro d.app.Act v ty;importandroid.app.ProgressDialog;importandroid.content.Intent;importandroid.os.Bundle;importandroid.util.Log;importandroid.view.View;

importandroid.widget.Button;importandroid.widget.EditText;importandroid.widget.Toast;

importcom.android.volley.Request.Method;importcom.android.volley.Response;importcom.android.volley.VolleyError;importcom.android.volley.toolbox.StringRequest;

importorg.json.JSONException;importorg.json.JSONObject;

importjava.util.HashMap;importjava.util.Map;

importinfo.androidhive.loginandregistration.R;importinfo.androidhive.loginandregistration.app.AppConfig;importinfo.androidhive.loginandregistration.app.AppController;importinfo.androidhive.loginandregistration.helper.SQLiteHandler;importinfo.androidhive.loginandregistration.helper.SessionManager;

public classLoginActivity extendsActivity {private static finalString TAG = RegisterActivity.class.getSimpleName();privateButton btnLogin;

privateButton btnLinkToRegister;privateEditText inputEmail;privateEditText inputPassword;privateProgressDialog pDialog;privateSessionManager session;privateSQLiteHandler db;

@Overridepublic voidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);setContentView(R.layout.activity_login);

inputEmail = (EditText) findViewById(R.id.email);

inputPassword = (EditText) findViewById(R.id.password);btnLogin = (Button) findViewById(R.id.btnLogin);btnLinkToRegister = (Button) findViewById(R.id.btnLinkToRegisterScreen);

// Progress dialogpDialog = newProgressDialog(this);pDialog.setCancelable(false);

// SQLite database handlerdb = newSQLiteHandler(getApplicationContext());


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// Check user s already logged n or notif(session.isLoggedIn()) {

// User is already logged in. Take him to main activityIntent intent = newIntent(LoginActivity.this, MainActivity.class);startActivity(intent);finish();

}

// Login button Click EventbtnLogin.setOnClickListener(newView.OnClickListener() {

public voidonClick(View view) {String email = inputEmail.getText().toString().trim();String password = inputPassword.getText().toString().trim();

// Check for empty data in the formif(!email.isEmpty() && !password.isEmpty()) {

// login user

checkLogin(email, password);} else{

// Prompt user to enter credentialsToast.makeText(getApplicationContext(),

"Please enter the credentials!", Toast.LENGTH_LONG).show();

}}

});

// Link to Register Screen

btnLinkToRegister.setOnClickListener(newView.OnClickListener() {

public voidonClick(View view) {Intent i = newIntent(getApplicationContext(),

RegisterActivity.class);startActivity(i);finish();

}});

}

/**

* function to verify login details in mysql db* */

private voidcheckLogin(finalString email, finalString password) {// Tag used to cancel the requestString tag_string_req = "req_login";

pDialog.setMessage("Logging in ...");showDialog();

StringRequest strReq = newStringRequest(Method.POST,AppConfig.URL_LOGIN, newResponse.Listener() {


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Log.d TAG, "Log n Response: "+ response.toStr ng ;hideDialog();

try{JSONObject jObj = newJSONObject(response);booleanerror = jObj.getBoolean("error");

// Check for error node in jsonif(!error) {

// user successfully logged in// Create login sessionsession.setLogin(true);

// Now store the user in SQLiteString uid = jObj.getString("uid");

JSONObject user = jObj.getJSONObject("user");String name = user.getString("name");

String email = user.getString("email");String created_at = user

.getString("created_at");

// Inserting row in users tabledb.addUser(name, email, uid, created_at);

// Launch main activityIntent intent = newIntent(LoginActivity.this,

MainActivity.class);startActivity(intent);finish();

} else{// Error in login. Get the error messageString errorMsg = jObj.getString("error_msg");Toast.makeText(getApplicationContext(),

errorMsg, Toast.LENGTH_LONG).show();}

} catch(JSONException e) {// JSON errore.printStackTrace();Toast.makeText(getApplicationContext(), "Json error: "+ e.g

}

}

}, newResponse.ErrorListener() {

@Overridepublic voidonErrorResponse(VolleyError error) {

Log.e(TAG, "Login Error: "+ error.getMessage());Toast.makeText(getApplicationContext(),

error.getMessage(), Toast.LENGTH_LONG).show();hideDialog();

}}) {


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Map params = newHashMap ;params.put("email", email);params.put("password", password);

returnparams;}

};

// Adding request to request queueAppController.getInstance().addToRequestQueue(strReq, tag_string_req);

}

private voidshowDialog() {if(!pDialog.isShowing())

pDialog.show();}

private voidhideDialog() {if(pDialog.isShowing())

pDialog.dismiss();}

}


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ACTIVITY_REGISTER.XML


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andro d:padd ng="10dp">


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andro d:text=" str ng/btn_reg ster"android:textColor="@color/white"/>

REGISTERACTIVITY.JAVA

/*** Author: Ravi Tamada* URL: www.androidhive.info* twitter: http://twitter.com/ravitamada*/

packageinfo.androidhive.loginandregistration.activity;

importandroid.app.Activity;importandroid.app.ProgressDialog;

importandroid.content.Intent;importandroid.os.Bundle;importandroid.util.Log;importandroid.view.View;importandroid.widget.Button;importandroid.widget.EditText;importandroid.widget.Toast;

importcom.android.volley.Request.Method;importcom.android.volley.Response;importcom.android.volley.VolleyError;importcom.android.volley.toolbox.StringRequest;


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importjava.util.HashMap;importjava.util.Map;

importinfo.androidhive.loginandregistration.R;importinfo.androidhive.loginandregistration.app.AppConfig;

importinfo.androidhive.loginandregistration.app.AppController;importinfo.androidhive.loginandregistration.helper.SQLiteHandler;importinfo.androidhive.loginandregistration.helper.SessionManager;

public classRegisterActivity extendsActivity {private static finalString TAG = RegisterActivity.class.getSimpleName();privateButton btnRegister;privateButton btnLinkToLogin;privateEditText inputFullName;privateEditText inputEmail;privateEditText inputPassword;privateProgressDialog pDialog;

privateSessionManager session;privateSQLiteHandler db;

@Overridepublic voidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);setContentView(R.layout.activity_register);

inputFullName = (EditText) findViewById(R.id.name);inputEmail = (EditText) findViewById(R.id.email);inputPassword = (EditText) findViewById(R.id.password);btnRegister = (Button) findViewById(R.id.btnRegister);

btnLinkToLogin = (Button) findViewById(R.id.btnLinkToLoginScreen);

// Progress dialogpDialog = newProgressDialog(this);pDialog.setCancelable(false);

// Session managersession = newSessionManager(getApplicationContext());

// SQLite database handlerdb = newSQLiteHandler(getApplicationContext());

// Check if user is already logged in or not

if(session.isLoggedIn()) {// User is already logged in. Take him to main activityIntent intent = newIntent(RegisterActivity.this,

MainActivity.class);startActivity(intent);finish();

}

// Register Button Click eventbtnRegister.setOnClickListener(newView.OnClickListener() {

public voidonClick(View view) {


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if(!name.isEmpty() && !email.isEmpty() && !password.isEmpty())registerUser(name, email, password);

} else{Toast.makeText(getApplicationContext(),

"Please enter your details!", Toast.LENGTH_LONG)

.show();}

}});

// Link to Login ScreenbtnLinkToLogin.setOnClickListener(newView.OnClickListener() {

public voidonClick(View view) {Intent i = newIntent(getApplicationContext(),

LoginActivity.class);startActivity(i);

finish();}

});

}

/*** Function to store user in MySQL database will post params(tag, name,* email, password) to register url* */

private voidregisterUser(finalString name, finalString email,finalString password) {

// Tag used to cancel the requestString tag_string_req = "req_register";

pDialog.setMessage("Registering ...");showDialog();

StringRequest strReq = newStringRequest(Method.POST,AppConfig.URL_REGISTER, newResponse.Listener() {

@Overridepublic voidonResponse(String response) {

Log.d(TAG, "Register Response: "+ response.toString());hideDialog();

try{JSONObject jObj = newJSONObject(response);booleanerror = jObj.getBoolean("error");if(!error) {

// User successfully stored in MySQL// Now store the user in sqliteString uid = jObj.getString("uid");

JSONObject user = jObj.getJSONObject("user");String name = user.getString("name");


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// Inserting row in users tabledb.addUser(name, email, uid, created_at);

Toast.makeText(getApplicationContext(), "User successful

// Launch login activityIntent intent = newIntent(

RegisterActivity.this,LoginActivity.class);

startActivity(intent);finish();

} else{

// Error occurred in registration. Get the error// messageString errorMsg = jObj.getString("error_msg");Toast.makeText(getApplicationContext(),

errorMsg, Toast.LENGTH_LONG).show();}

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

}

}}, newResponse.ErrorListener() {

@Overridepublic voidonErrorResponse(VolleyError error) {

Log.e(TAG, "Registration Error: "+ error.getMessage());

Toast.makeText(getApplicationContext(),error.getMessage(), Toast.LENGTH_LONG).show();hideDialog();

}}) {

@OverrideprotectedMap getParams() {

// Posting params to register urlMap params = newHashMap();params.put("name", name);params.put("email", email);params.put("password", password);

returnparams;}

};

// Adding request to request queueAppController.getInstance().addToRequestQueue(strReq, tag_string_req);

}

private voidshowDialog() {


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private voidhideDialog() {if(pDialog.isShowing())

pDialog.dismiss();}

}


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. .xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context="${relativePackage}.${activityClass}">


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MAINACTIVITY.JAVA

packageinfo.androidhive.loginandregistration;

importinfo.androidhive.loginandregistration.helper.SQLiteHandler;importinfo.androidhive.loginandregistration.helper.SessionManager;

importjava.util.HashMap;

importandroid.app.Activity;importandroid.content.Intent;importandroid.os.Bundle;importandroid.view.View;importandroid.widget.Button;importandroid.widget.TextView;

public classMainActivity extendsActivity {

privateTextView txtName;privateTextView txtEmail;privateButton btnLogout;

privateSQLiteHandler db;privateSessionManager session;

@Overrideprotected voidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);

txtName = (TextView) findViewById(R.id.name);txtEmail = (TextView) findViewById(R.id.email);btnLogout = (Button) findViewById(R.id.btnLogout);

// SqLite database handlerdb = newSQLiteHandler(getApplicationContext());

// session managersession = newSessionManager(getApplicationContext());

if(!session.isLoggedIn()) {

logoutUser();}

// Fetching user details from sqliteHashMap user = db.getUserDetails();

String name = user.get("name");String email = user.get("email");

// Displaying the user details on the screentxtName.setText(name);txtEmail.setText(email);


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@Overridepublic voidonClick(View v) {

logoutUser();}

});

}

/*** Logging out the user. Will set isLoggedIn flag to false in shared* preferences Clears the user data from sqlite users table* */

private voidlogoutUser() {session.setLogin(false);

db.deleteUsers();

// Launching the login activity

Intent intent = newIntent(MainActivity.this, LoginActivity.class);startActivity(intent);finish();

}}


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androidloginandregistration v2

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