I know there are n number of examples in android for shared preferences but I want to Register and store the info in shared preferences and in database using JSON. And then fetch data from JSON and Login with those credentials. If user is already logged in open Main Activity,else go to Splash screen and then open Login Activity. Please go through my detailed code :
RegisterActivity :
public class RegisterActivity extends AppCompatActivity implements ServerRequests.Registereponse {
private EditText password, phone, email;
public static EditText name;
ServerRequests serverRequests;
JSONParser jsonParser;
private Button registerButton;
TextView alreadyMember;
Editor editor;
UserSession session;
SharedPreferences sharedPreferences;
public static final String MyPREFERENCES = "MyPrefs";
public static final String Name1 = "nameKey";
public static final String Phone1 = "phoneKey";
public static final String Email1 = "emailKey";
public static final String Password1 = "passwordKey";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
jsonParser = new JSONParser();
serverRequests = new ServerRequests(getApplicationContext());
serverRequests.setRegistereponse(this);
alreadyMember = (TextView) findViewById(R.id.alreadyMember);
name = (EditText) findViewById(R.id.FName);
phone = (EditText) findViewById(R.id.PhoneNum);
email = (EditText) findViewById(R.id.mail);
password = (EditText) findViewById(R.id.password);
registerButton = (Button) findViewById(R.id.email_sign_in_button);
sharedPreferences = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
registerButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
CharSequence temp_emailID = email.getText().toString();
if (name.getText().toString().length() == 0) {
name.setError("Please enter your name");
name.requestFocus();
} else if (phone.getText().toString().length() == 0) {
phone.setError("Please enter your phone number");
phone.requestFocus();
} else if (!isValidEmail(temp_emailID)) {
email.setError("Please enter valid email");
email.requestFocus();
} else if (password.getText().toString().length() == 0) {
password.setError("Please enter password");
password.requestFocus();
} else {
try {
String Name = name.getText().toString();
String Email = email.getText().toString();
String Password = password.getText().toString();
String Phone = phone.getText().toString();
JSONObject obj = jsonParser.makeRegisterJson(Name, Email, Password, Long.parseLong(Phone));
Log.e("final Json", obj.toString());
serverRequests.register(obj);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(Name1, Name);
editor.putString(Email1, Email);
editor.putString(Password1, Password);
editor.putString(Phone1, Phone);
editor.commit();
// Toast.makeText(RegisterActivity.this, "Registered Successfully!", Toast.LENGTH_LONG).show();
} catch (Exception e) {
}
}
// startActivity(new Intent(RegisterActivity.this, LoginActivity.class));
}
});
alreadyMember.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(RegisterActivity.this, LoginActivity.class));
finish();
}
});
}
@Override
public void onRegsiterReposne(JSONObject object) {
Toast.makeText(RegisterActivity.this, "hiii" + object.toString(), Toast.LENGTH_SHORT).show();
}
public final static boolean isValidEmail(CharSequence target) {
if (TextUtils.isEmpty(target)) {
return false;
} else {
return android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
}
}
}
LoginActivity :
public class LoginActivity extends AppCompatActivity implements ServerRequests.Loginreponse {
private static final String PREFER_NAME = "Reg";
private Button email_sign_in_button;
private EditText email, password;
private TextView notMember, forgotPass;
UserSession session;
private SharedPreferences sharedPreferences;
ServerRequests serverRequests;
JSONParser jsonParser;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
jsonParser = new JSONParser();
serverRequests = new ServerRequests(getApplicationContext());
serverRequests.setLoginreponse(this);
notMember = (TextView) findViewById(R.id.notMember);
forgotPass = (TextView) findViewById(R.id.forgotPass);
notMember.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(LoginActivity.this, RegisterActivity.class));
finish();
}
});
forgotPass.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(LoginActivity.this, ForgotPassword.class));
}
});
// get Email, Password input text
email = (EditText) findViewById(R.id.email);
password = (EditText) findViewById(R.id.pass);
// User Login button
email_sign_in_button = (Button) findViewById(R.id.login);
sharedPreferences = getSharedPreferences(PREFER_NAME, MODE_PRIVATE);
// Login button click event
email_sign_in_button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
try {
String Email = email.getText().toString();
String Password = password.getText().toString();
JSONObject obj = jsonParser.makeLoginJson(Email, Password);
Log.e("final Json", obj.toString());
serverRequests.login(obj);
} catch (Exception e) {
}
// startActivity(new Intent(LoginActivity.this, MainActivity.class));
// finish();
}
});
}
@Override
public void onLoginReposne(JSONObject object) {
Toast.makeText(LoginActivity.this, "helloo" + object.toString(), Toast.LENGTH_SHORT).show();
if (object.toString().contains("true")) {
Toast.makeText(LoginActivity.this, "Logged in..", Toast.LENGTH_SHORT).show();
startActivity(new Intent(LoginActivity.this, MainActivity.class));
finish();
}
}
}
SplashScreen :
public class SplashScreen extends Activity {
Thread splashTread;
SharedPreferences preferences;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash_screen);
StartAnimations();
}
public void onAttachedToWindow() {
super.onAttachedToWindow();
Window window = getWindow();
window.setFormat(PixelFormat.RGBA_8888);
}
private void StartAnimations() {
Animation anim = AnimationUtils.loadAnimation(this, R.anim.alpha);
anim.reset();
LinearLayout l = (LinearLayout) findViewById(R.id.lin_lay);
l.clearAnimation();
l.startAnimation(anim);
anim = AnimationUtils.loadAnimation(this, R.anim.translate);
anim.reset();
ImageView iv = (ImageView) findViewById(R.id.splashImage);
iv.clearAnimation();
iv.startAnimation(anim);
/* TextView tv = (TextView) findViewById(R.id.splashText);
tv.clearAnimation();
tv.startAnimation(anim);*/
splashTread = new Thread() {
@Override
public void run() {
try {
int waited = 0;
// Splash screen pause time
while (waited < 3500) {
sleep(100);
waited += 100;
}
startNextScreen();
} catch (InterruptedException e) {
// do nothing
} finally {
SplashScreen.this.finish();
}
}
};
splashTread.start();
}
private void startNextScreen() {
preferences = getSharedPreferences("TrainingApp", MODE_PRIVATE);
String userLoginStatus = preferences.getString("userLoginStatus", "no");
if (userLoginStatus.equals("no")) {
Intent intent = new Intent(SplashScreen.this,
LoginActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(intent);
SplashScreen.this.finish();
} else {
Intent intent = new Intent(SplashScreen.this,
MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(intent);
SplashScreen.this.finish();
}
}
}
JSONParser class :
public class JSONParser {
//----------For Register
public JSONObject makeRegisterJson(String name, String email, String password, long phone) throws JSONException {
JSONObject object = new JSONObject();
object.put("name", name);
object.put("email", email);
object.put("password", password);
object.put("phone", phone);
// if its in array------
/*JSONObject finalObject=new JSONObject();
finalObject.put("request",object);
return finalObject;*/
return object;
}
//--------For Login--------------------------------------------------------
public JSONObject makeLoginJson(String Name, String password) throws JSONException {
JSONObject object = new JSONObject();
object.put("userName", Name);
object.put("password", password);
/*JSONObject finalObject=new JSONObject();
finalObject.put("request",object);
return finalObject;*/
return object;
}
}
ServerRequests class :
// ---------------- for register------------------------------------------------------------------------------
public void setRegistereponse(Registereponse registereponse) {
this.registereponse = registereponse;
}
private Registereponse registereponse;
public interface Registereponse {
void onRegsiterReposne(JSONObject object);
}
public void register(JSONObject jsonObject) {
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, Services.REGISTER_URL, jsonObject,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
Log.e("Json response", "" + response);
boolean b = response.getBoolean("success");
if (registereponse != null) {
registereponse.onRegsiterReposne(response);
}
} catch (Exception e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e("Error ", "" + error);
}
}
);
queue.add(jsonObjectRequest);
}
// --------------For Login ---------------------------------------------------------------------------
public void setLoginreponse(Loginreponse loginreponse) {
this.loginreponse = loginreponse;
}
private Loginreponse loginreponse;
public interface Loginreponse {
void onLoginReposne(JSONObject object);
}
public void login(JSONObject jsonObject) {
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, Services.LOGIN_URL, jsonObject,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
Log.e("Json response", "" + response);
boolean b = response.getBoolean("success");
if (loginreponse != null) {
loginreponse.onLoginReposne(response);
}
} catch (Exception e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e("Error ", "" + error);
}
}
);
queue.add(jsonObjectRequest);
}
UserSession class :
public class UserSession {
// Shared Preferences reference
SharedPreferences pref;
// Editor reference for Shared preferences
Editor editor;
// Context
Context _context;
// Shared preferences mode
int PRIVATE_MODE = 0;
// Shared preferences file name
public static final String PREFER_NAME = "Reg";
// All Shared Preferences Keys
public static final String IS_USER_LOGIN = "IsUserLoggedIn";
// User name (make variable public to access from outside)
public static final String KEY_NAME = "Name";
// Email address (make variable public to access from outside)
public static final String KEY_EMAIL = "Email";
// password
public static final String KEY_PASSWORD = "Password";
public static final String KEY_PHONE = "PhoneNumber";
public static final String KEY_QUALIFICATION = "Qualification";
// Constructor
public UserSession(Context context) {
this._context = context;
pref = _context.getSharedPreferences(PREFER_NAME, PRIVATE_MODE);
editor = pref.edit();
}
//Create login session
public void createUserLoginSession(String uEmail, String uPassword) {
// Storing login value as TRUE
editor.putBoolean(IS_USER_LOGIN, true);
// Storing name in preferences
editor.putString(KEY_EMAIL, uEmail);
// Storing email in preferences
editor.putString(KEY_PASSWORD, uPassword);
// commit changes
editor.commit();
}
/**
* Check login method will check user login status
* If false it will redirect user to login page
* Else do anything
*/
public boolean checkLogin() {
// Check login status
if (!this.isUserLoggedIn()) {
// user is not logged in redirect him to Login Activity
Intent i = new Intent(_context, LoginActivity.class);
// Closing all the Activities from stack
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
// Add new Flag to start new Activity
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Staring Login Activity
_context.startActivity(i);
return true;
}
return false;
}
/**
* Get stored session data
*/
public HashMap<String, String> getUserDetails() {
//Use hashmap to store user credentials
HashMap<String, String> user = new HashMap<String, String>();
// user name
user.put(KEY_NAME, pref.getString(KEY_NAME, null));
// user email id
user.put(KEY_EMAIL, pref.getString(KEY_EMAIL, null));
user.put(KEY_PASSWORD, pref.getString(KEY_PASSWORD, null));
user.put(KEY_PHONE, pref.getString(KEY_PHONE, null));
user.put(KEY_QUALIFICATION, pref.getString(KEY_QUALIFICATION, null));
// return user
return user;
}
/**
* Clear session details
*/
public void logoutUser() {
// Clearing all user data from Shared Preferences
editor.clear();
editor.commit();
// After logout redirect user to MainActivity
Intent i = new Intent(_context, LoginActivity.class);
// Closing all the Activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
// Add new Flag to start new Activity
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Staring Login Activity
_context.startActivity(i);
}
// Check for login
public boolean isUserLoggedIn() {
return pref.getBoolean(IS_USER_LOGIN, false);
}
}
