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LoginActivity.java
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LoginActivity.java
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package com.example.matthew.notesapp;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.support.annotation.NonNull;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.text.TextUtils;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import java.util.Random;
import com.google.firebase.database.ChildEventListener;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import java.util.ArrayList;
import java.util.List;
import static android.Manifest.permission.READ_CONTACTS;
/**
* A login screen that offers login via username/password.
*/
public class LoginActivity extends AppCompatActivity{
private FirebaseDatabase database;
private DatabaseReference myRef;
// Event Listener that listens to each child in the database
private ChildEventListener childEventListener;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
database = FirebaseDatabase.getInstance();
myRef = database.getReference("Notes");
}
public void Login(View view) {
EditText loginName = findViewById(R.id.Username);
EditText passwordEntered = findViewById(R.id.password);
String loginString = loginName.getText().toString();
String passwordString = passwordEntered.getText().toString();
// THE ONLY VALID USERNAME IS Admin AND THE ONLY VALID PASSWORD IS 1234 SINCE IT IS JUST AN ADMIN LOGIN
if (loginString.equals("Admin") && passwordString.equals("1234"))
{
Toast.makeText(this, loginString + " successfully logged into the database! ", Toast.LENGTH_LONG).show();
Random random = new Random();
int NoteID = random.nextInt(90000) + 10000;
String str_id = Integer.toString(NoteID);
String LoginPwCombo = loginString + ": " + passwordString;
myRef.child(str_id).setValue(LoginPwCombo);
} else
{
Toast.makeText(this, "Sorry Invalid Username or Password! Try again", Toast.LENGTH_LONG).show();
}
loginName.setText("");
passwordEntered.setText("");
}
public void menu(View view) {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
}
}