Sojod Sawaed

mainactivity.java
====================
package com.example.swaed.fitnessstyle;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

import java.util.Date;
import java.util.List;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    EditText etUserName, etPassword;
    String birthdate, height, crntWeight, goalWeight;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Settings.myContext=getApplicationContext();
        Settings.init();
        connectToLayout();

    }

    private void connectToLayout() {
        etUserName = (EditText) findViewById(R.id.etUserName);
        etPassword = (EditText) findViewById(R.id.etPassword);
        findViewById(R.id.btnLog).setOnClickListener(this);
        findViewById(R.id.btnSign).setOnClickListener(this);

    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.btnLog:
                String username = etUserName.getText().toString();
                String password = etPassword.getText().toString();

                if (username.length() == 0 || password.length() == 0) {
                    Toast.makeText(this, "Please fill username and password!", Toast.LENGTH_LONG).show();
                    return;
                }

                // pass to next page if user Exsit

                Settings.curUser = User.login(username, password);
                if (Settings.curUser != null) {

                    Intent i = new Intent(this, HomeActivity.class);
                    startActivity(i);
                } else {
                    Toast.makeText(this, "Invalid username or password!", Toast.LENGTH_LONG).show();
                }

                break;

            case R.id.btnSign:
                Intent i = new Intent(this, GoalActivity.class);
                startActivity(i);
                break;

            default:
                Toast.makeText(this, "Error on click", Toast.LENGTH_LONG).show();
                break;
        }

    }

}