Android Open Source - Android-Parse.com-Simple-Login-and-Signup-Tutorial Login Signup Activity

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License

The source code is released under:

Apache License

Java Source Code

package com.androidbegin.parselogintutorial;
//  w ww .  j  a v a 2  s.c  om
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.parse.LogInCallback;
import com.parse.ParseException;
import com.parse.ParseUser;
import com.parse.SignUpCallback;

public class LoginSignupActivity extends Activity {
  // Declare Variables
  Button loginbutton;
  Button signup;
  String usernametxt;
  String passwordtxt;
  EditText password;
  EditText username;

  /** Called when the activity is first created. */
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // Get the view from main.xml
    setContentView(R.layout.loginsignup);
    // Locate EditTexts in main.xml
    username = (EditText) findViewById(R.id.username);
    password = (EditText) findViewById(R.id.password);

    // Locate Buttons in main.xml
    loginbutton = (Button) findViewById(R.id.login);
    signup = (Button) findViewById(R.id.signup);

    // Login Button Click Listener
    loginbutton.setOnClickListener(new OnClickListener() {

      public void onClick(View arg0) {
        // Retrieve the text entered from the EditText
        usernametxt = username.getText().toString();
        passwordtxt = password.getText().toString();

        // Send data to Parse.com for verification
        ParseUser.logInInBackground(usernametxt, passwordtxt,
            new LogInCallback() {
              public void done(ParseUser user, ParseException e) {
                if (user != null) {
                  // If user exist and authenticated, send user to Welcome.class
                  Intent intent = new Intent(
                      LoginSignupActivity.this,
                      Welcome.class);
                  startActivity(intent);
                  Toast.makeText(getApplicationContext(),
                      "Successfully Logged in",
                      Toast.LENGTH_LONG).show();
                  finish();
                } else {
                  Toast.makeText(
                      getApplicationContext(),
                      "No such user exist, please signup",
                      Toast.LENGTH_LONG).show();
                }
              }
            });
      }
    });
    // Sign up Button Click Listener
    signup.setOnClickListener(new OnClickListener() {

      public void onClick(View arg0) {
        // Retrieve the text entered from the EditText
        usernametxt = username.getText().toString();
        passwordtxt = password.getText().toString();
        
        // Force user to fill up the form
        if (usernametxt.equals("") && passwordtxt.equals("")) {
          Toast.makeText(getApplicationContext(),
              "Please complete the sign up form",
              Toast.LENGTH_LONG).show();

        } else {
          // Save new user data into Parse.com Data Storage
          ParseUser user = new ParseUser();
          user.setUsername(usernametxt);
          user.setPassword(passwordtxt);
          user.signUpInBackground(new SignUpCallback() {
            public void done(ParseException e) {
              if (e == null) {
                // Show a simple Toast message upon successful registration
                Toast.makeText(getApplicationContext(),
                    "Successfully Signed up, please log in.",
                    Toast.LENGTH_LONG).show();
              } else {
                Toast.makeText(getApplicationContext(),
                    "Sign up Error", Toast.LENGTH_LONG)
                    .show();
              }
            }
          });
        }

      }
    });

  }
}

Java Source Code List

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