SmartHome 2

activity_main.xml
=====================
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="#ffffff">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:src="@drawable/logo_mysh"/>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical"
        android:gravity="center"
        android:layout_marginLeft="@dimen/edge"
        android:layout_marginRight="@dimen/edge">
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/user_name"
            android:id="@+id/txtUser"/>
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/user_pass"
            android:id="@+id/txtPass"
            android:inputType="textPassword"/>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            android:layout_weight="1"
            android:layout_marginRight="@dimen/edge"
            android:layout_marginLeft="@dimen/edge"
            android:gravity="center">
            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="#009fff"
                android:textColor="#ffffff"
                android:text="@string/btnLogin"
                android:textSize="22sp"
                android:layout_margin="@dimen/edge"
                android:onClick="btnLogin"/>
            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="#009fff"
                android:textColor="#ffffff"
                android:text="@string/btnRegister"
                android:textSize="22sp"
                android:layout_margin="@dimen/edge"
                android:id="@+id/btnRegister"/>
        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="2dp"
            android:background="#000000"/>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            android:layout_weight="1">
            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="#009fff"
                android:textColor="#ffffff"
                android:text="@string/btnAr"
                android:textSize="16sp"
                android:layout_margin="@dimen/edge"
                android:id="@+id/btnAr"
                android:onClick="onClick"/>
            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="#009fff"
                android:textColor="#ffffff"
                android:text="@string/btnHE"
                android:textSize="16sp"
                android:layout_margin="@dimen/edge"
                android:id="@+id/btnHe"
                android:onClick="onClick"/>
            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="#009fff"
                android:textColor="#ffffff"
                android:text="@string/btnRu"
                android:textSize="16sp"
                android:layout_margin="@dimen/edge"
                android:id="@+id/btnRu"
                android:onClick="onClick"/>
            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:background="#009fff"
                android:textColor="#ffffff"
                android:text="@string/btnEn"
                android:textSize="16sp"
                android:layout_margin="@dimen/edge"
                android:id="@+id/btnEn"
                android:onClick="onClick"/>
        </LinearLayout>
    </LinearLayout>
</LinearLayout>


actyivity_registration.xml
==============================
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:layout_margin="@dimen/edge"
    android:background="#ffffff">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:layout_weight="1">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:src="@drawable/logo_mysh"/>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:layout_weight="1"
        android:gravity="center">
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/user_name"
            android:id="@+id/newUserName"/>
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/user_pass"
            android:id="@+id/newUserPass"/>
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/user_pass"
            android:id="@+id/newUserPassCheck"/>

    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        android:layout_weight="1"
        android:gravity="center">
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="#ffffff"
            android:background="#009fff"
            android:text="@string/btnLogin"
            android:textSize="22sp"
            android:id="@+id/btnNewUserReg"
            android:layout_weight="1"
            android:layout_margin="@dimen/edge"/>
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="#ffffff"
            android:background="#009fff"
            android:text="@string/btnCancel"
            android:textSize="22sp"
            android:id="@+id/btnCancel"
            android:layout_weight="1"
            android:layout_margin="@dimen/edge"/>
    </LinearLayout>
</LinearLayout>


UserAble.java
========================
package com.example.teacher.mysmarthome;

public interface UserAble {
    //check user if not exists - boolean
    //add user - void
    //delete user - void
    //update user - void
    //check user password -boolean

    boolean userExists(String userName);
    void addUser(String userName, String userPass);
    void deleteUser(String userName);
    void updateUser(String userName,String newUserPass);
    boolean checkUser(String userName,String userPass);
}


MainActivity.java
=====================
package com.example.teacher.mysmarthome;

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

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    EditText txtUser,txtPass;
    Button btnRegister;
    Context context;
    private final String TEST_USER="zeev";
    private final String TEST_PASS="12345";
    SPusers myUsers;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setPointer();
        myUsers = new SPusers(this);

    }

    private void setPointer() {
        context=this;
        txtUser=findViewById(R.id.txtUser);
        txtPass=findViewById(R.id.txtPass);
        btnRegister=findViewById(R.id.btnRegister);
        btnRegister.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //create a new intent
                Intent intent=new Intent(context,Registration.class);
                startActivity(intent);

                //bad practice
                //startActivity(new Intent(context,Registration.class));
            }
        });
    }

    public void btnLogin(View view)
    {
        //Toast.makeText(this, "Hello my brother from another mother", Toast.LENGTH_LONG).show();
        String myUser=txtUser.getText().toString();
        String myPass=txtPass.getText().toString();

        //check if user exists...

    }

    @Override
    public void onClick(View view) {
        switch (view.getId())
        {
            case R.id.btnAr:
                Toast.makeText(context, "Arabic", Toast.LENGTH_SHORT).show();
                break;

            case R.id.btnEn:
                Toast.makeText(context, "English", Toast.LENGTH_SHORT).show();
                break;

            case R.id.btnHe:
                Toast.makeText(context, "Hebrew", Toast.LENGTH_SHORT).show();
                break;

            case R.id.btnRu:
                Toast.makeText(context, "Russion", Toast.LENGTH_SHORT).show();
                break;

            default:
                Toast.makeText(context, "WTF?!?!?!?", Toast.LENGTH_SHORT).show();
                break;
        }
    }
}


SPUsers.java
====================
package com.example.teacher.mysmarthome;

import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.widget.Toast;

public class SPusers implements UserAble {
    //our shared preferances (saving data to our device)
    SharedPreferences sp; //for reading
    SharedPreferences.Editor spe; //for writing
    Context context;

    public SPusers(Context context) {
        this.context=context;
        sp=context.getSharedPreferences("users",Context.MODE_PRIVATE);
        spe=sp.edit();
    }

    @Override
    public boolean userExists(String userName) {
        return sp.getString(userName,"-1").equals("-1");
    }

    @Override
    public void addUser(String userName, String userPass) {
        spe.putString(userName,userPass);
        spe.commit();
        //Toast.makeText(context, "WE GOT MIRA IN THE SYSTEM!!!", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void deleteUser(String userName) {

    }

    @Override
    public void updateUser(String userName, String newUserPass) {

    }

    @Override
    public boolean checkUser(String userName, String userPass) {
        /*
        if (userExists(userName))
        {
            if (sp.getString(userName,"-1").equals(userPass))
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        return false;
        */
        return sp.getString(userName,"-1").equals(userPass);
    }

    public String hatib(String userName)
    {
        return sp.getString(userName,"-1");
    }
}


Registration.java
========================
package com.example.teacher.mysmarthome;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;

public class Registration extends AppCompatActivity {
    EditText txtUser,txtPass,txtPass2;
    Button btnRegister,btnCancel;

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

    private void setPointer() {
        //class work, add pointers
    }

    private void registerUser()
    {
        //class work,
        //1. check if password larger then 3 symblos
        //2. check if passwords match
        //3. if user exists
        //4. add user
        //5. give error or successful

        //to close activity, use the command finish();
    }

}