HomeWork MyToDoList

HomeWork MyToDoList by Igor

xml activity_main======================================================================================================================
<RelativeLayout
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:id="@+id/mainTag"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="30sp"
        android:hint="Username"
        android:gravity="center"
        android:id="@+id/inUser"
        android:layout_marginTop="15sp"
        />
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="30sp"
        android:inputType="textPassword"
        android:hint="Password"
        android:gravity="center"
        android:id="@+id/inPass"
        android:layout_below="@+id/inUser"
        android:layout_marginTop="5sp"
        />
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="30sp"
        android:text="Login"
        android:id="@+id/btnLog"
        android:layout_below="@+id/inPass"
        android:layout_marginTop="40sp"
        android:padding="20sp"
        android:onClick="btnLog"
        />
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Register"
        android:textSize="25sp"
        android:id="@+id/btnReg"
        android:layout_below="@+id/btnLog"
        android:layout_marginTop="10sp"
        android:padding="10sp"
        android:onClick="btnReg"
        />
</RelativeLayout>
====================================================================================================================================
Java MainActivity===================================================================================================================
package com.example.igor.mytodolist;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity
{
    //creating local EditText variables to connect with XML tag ids

    //      username  password
    private EditText userTxt, userPass;

    //Creating a SharedPRefrences
    private SharedPreferences myPref;
    private  SharedPreferences.Editor editor;

    //will be used to check if the username is online
    private String userConnected;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setPoints();
        //checks if user has allready logged in the past
        if(chkOnline())
        {
            //if he did and the method is true go direclty to Logged page
            Intent logged = new Intent(this,Logged.class);
            logged.putExtra("userOn",userConnected); // if logged transfer this data onward
            this.startActivity(logged);
        }
    }

    private void setPoints()
    {
        //connects the local vars with the id'd tags
        userTxt = (EditText)findViewById(R.id.inUser);
        userPass = (EditText)findViewById(R.id.inPass);

        //Setting up the SharedPrefrences                    //working with the clients(users) file
        myPref = getApplicationContext().getSharedPreferences(Register.myClients,MODE_PRIVATE);
        editor = myPref.edit();
    }

    //method that is caleld by the button to check if all info is valid
    private boolean chkUser()
    {
        String userInput = userTxt.getText().toString();
        String passInput = userPass.getText().toString();
        //checks if all fields are correct
        if(userInput.trim().equals("") || passInput.trim().equals(""))
        {
            Toast.makeText(this,"Error, Please fill all the fields", Toast.LENGTH_SHORT).show();
            return false;
        }

        //checks if username and password are correct!
        if(!myPref.contains(userInput) || !passInput.equals(myPref.getString(userInput,passInput)))
        {
            Toast.makeText(this,"Error, Wrong username or password!", Toast.LENGTH_SHORT).show();
            return false;
        }

        // if none of the if statements accure save the Data in userOn and return true
        editor.putString("userOn",userInput).commit();
        return true;
    }

    //method that checks if the username has logged in the past
    private boolean chkOnline()
    {
        userConnected = myPref.getString("userOn","offline");

        return !userConnected.equals("offline");
    }

    //button that calls upon method that checks users name and password and decides if to continue
    public void btnLog(View v)
    {
        if(chkUser())
        {
            Toast.makeText(this,"Logged in Succesfully",Toast.LENGTH_SHORT).show();
            Intent logIn = new Intent(this,Logged.class);
            this.startActivity(logIn);
        }
    }

    //button that sends user to the registration
    public void btnReg(View v)
    {
        Intent goReg = new Intent(this, Register.class);
        this.startActivity(goReg);
    }
}
====================================================================================================================================
XML activity_register===============================================================================================================
<RelativeLayout
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Registration"
        android:gravity="center"
        android:textSize="20sp"
        android:id="@+id/regLine"
        android:layout_marginTop="20sp"
        />
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="UserName"
        android:gravity="center"
        android:textSize="30sp"
        android:id="@+id/setUser"
        android:layout_below="@+id/regLine"
        android:layout_marginTop="15sp"
        />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Password"
        android:inputType="textPassword"
        android:gravity="center"
        android:textSize="30sp"
        android:id="@+id/setPass"
        android:layout_below="@+id/setUser"
        android:layout_marginTop="30sp" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Re-Password"
        android:inputType="textPassword"
        android:gravity="center"
        android:textSize="30sp"
        android:id="@+id/confPass"
        android:layout_below="@+id/setPass"
        android:layout_marginTop="30sp" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Register"
        android:textSize="30sp"
        android:id="@+id/tryReg"
        android:layout_below="@+id/confPass"
        android:layout_marginTop="10sp"
        android:onClick="btnReg"
        />
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Cancle"
        android:textSize="20sp"
        android:id="@+id/regCanc"
        android:layout_below="@+id/tryReg"
        android:layout_marginTop="20sp"
        android:onClick="btnCncl"
        />
</RelativeLayout>
====================================================================================================================================
Java Register=======================================================================================================================
package com.example.igor.mytodolist;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

/**
 * Created by Igor on 3/19/2016.
 */
public class Register extends Activity
{
    //Creating final variable to set SharedPRefrences file name (XML filename)
    public static final String myClients = "account";

    private SharedPreferences myPref;
    private SharedPreferences.Editor editor;

    //creating 3 EditText variables to connect them with the XML file

    //            /*username  password  confrim password*/
    private EditText inptUser, inpPass, confPass;

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

    //setting up all the variables in a method that will be excuted in /*onCreate*/ method
    private void setPoints()
    {
        //connecting local variables with XML id'd tags
        inptUser =(EditText)findViewById(R.id.setUser);
        inpPass =(EditText)findViewById(R.id.setPass);
        confPass =(EditText)findViewById(R.id.confPass);

        //setting up our SharedPrefrences file
        myPref = getApplicationContext().getSharedPreferences(myClients,MODE_PRIVATE);
        editor = myPref.edit();
    }

    private boolean chkReg()
    {
        String userName = inptUser.getText().toString();
        String passWord = inpPass.getText().toString();
        String confirm = confPass.getText().toString();

        //checks if all fields are filled
        if( userName.trim().equals("") || passWord.trim().equals("")
                || confirm.toLowerCase().equals("") )
        {
            Toast.makeText(this,"Error, Please make sure all fields are full!",Toast.LENGTH_SHORT).show();
            return false;
        }

        //checks if passwords match
        if(!confirm.equals(passWord))
        {
            Toast.makeText(this,"Error, Please make sure passwords match!",Toast.LENGTH_SHORT).show();
            return false;
        }

        //checks if the username is availble
        if(myPref.contains(userName))
        {
            Toast.makeText(this,"Error, this username has allready been taken!",Toast.LENGTH_SHORT).show();
            return false;
        }

        //if all these statements do not accure just input the data given and return true

        editor.putString(userName, passWord).commit();

        Toast.makeText(this,"Success, Account has been registered!",Toast.LENGTH_SHORT).show();
        return true;
    }

    //Register button that chekcs if account is valid
    public void btnReg(View v)
    {
        if(chkReg())
        {
            Intent bckLog = new Intent(this,MainActivity.class);
            this.startActivity(bckLog);
            finish();
        }
    }

    //Cancle Registration and return to login
    public void btnCncl(View v)
    {
        Intent rtnLog = new Intent(this,MainActivity.class);
        this.startActivity(rtnLog);
        finish();
    }
}
====================================================================================================================================
XML activity_logged=================================================================================================================
<RelativeLayout
    android:layout_height="wrap_content"
    android:layout_width="match_parent"
    android:id="@+id/logPage"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/logMsg"
        android:layout_marginTop="25sp"
        android:textSize="50sp"
        />

    <ListView
        android:id="@+id/idList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/logMsg"
        />
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/btnTask"
        android:layout_below="@+id/idList"
        android:text="Add Task"
        android:textSize="30sp"
        android:gravity="center"
        android:layout_marginTop="20sp"
        android:onClick="btnTask"
        />
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/btnOut"
        android:layout_below="@+id/btnTask"
        android:text="log out"
        android:textSize="30sp"
        android:gravity="center"
        android:layout_marginTop="20sp"
        android:onClick="btnLogOut"
        />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Created by Igor"
        android:id="@+id/whoLog"/>
</RelativeLayout>
====================================================================================================================================
JAVA Logged=========================================================================================================================
package com.example.igor.mytodolist;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.Map;

/**
 * Created by Igor on 3/19/2016.
 */
public class Logged extends Activity
{
    TextView usrName;//will be used to display user that has logged
    ListView myList; //will be used to connect all the tasks on a listview

    //SharedPrefrences
    SharedPreferences myPref;
    SharedPreferences myData; // will be used to select each users database of tasks!
    SharedPreferences.Editor editor;

    //setting up an arraylist to hold all of the tasks
    ArrayList<String> myTasks = new ArrayList<String>();

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_logged);
        setPoints();
        //say hello user
        usrName.setText("Hello "+ getUsername());
    }

    //returns the name of the user that is currently online
    private String getUsername()
    {
        String userName = myPref.getString("userOn","offline");
        return userName;//returns current username online
    }

    //settingup basic points in the onCreate
    private void setPoints()
    {
        //connects the id with variable
        usrName = (TextView)findViewById(R.id.logMsg);
        myList = (ListView)findViewById(R.id.idList);

        //setting up the prefrences
        myPref = getApplicationContext().getSharedPreferences(Register.myClients,MODE_PRIVATE);
        editor = myPref.edit();

        //setting up specific user database of tasks
        myData = getApplicationContext().getSharedPreferences(getUsername(),MODE_PRIVATE);
    }

    protected void onResume()
    {
      super.onResume();
        Map<String,?> usersTasks= myData.getAll();
        for(Map.Entry<String,?> tasks:usersTasks.entrySet())
        {
            myTasks.add(tasks.getKey().toString());
        }

        MyAdapter adpt = new MyAdapter(this,myTasks);
        myList.setAdapter(adpt);
    }


    //add new task button
    public void btnTask(View v)
    {
        Intent newTask = new Intent(this,NewTask.class);
        this.startActivity(newTask);
        finish();
    }

    //logout button
    public void btnLogOut(View v)
    {
        Intent logOut = new Intent(this,MainActivity.class);
        editor.remove("userOn").commit();
        this.startActivity(logOut);
        finish();
    }
}
====================================================================================================================================
XML activity_addtask================================================================================================================
<RelativeLayout
    android:id="@+id/conter"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <TextView
        android:id="@+id/wlcTask"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Add Your Task below"
        android:textSize="30sp"
        android:gravity="center"
        />
    <EditText
        android:id="@+id/txtTask"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="New task"
        android:gravity="center"
        android:textSize="25sp"
        android:layout_below="@+id/wlcTask"
        android:layout_marginTop="40sp"
        />
    <Button
        android:id="@+id/btnAdd"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/txtTask"
        android:layout_marginTop="20sp"
        android:text="Add Task"
        android:textSize="50sp"
        android:onClick="btnTask"
        />
    <Button
        android:id="@+id/btnRtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/btnAdd"
        android:layout_marginTop="20sp"
        android:text="Canlce"
        android:textSize="30sp"
        android:onClick="btnCancle"
        />
</RelativeLayout>
====================================================================================================================================
JAVA NewTask========================================================================================================================
package com.example.igor.mytodolist;


import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

/**
 * Created by Igor on 3/19/2016.
 */
public class NewTask extends Activity
{
    //user task input
    private EditText usrTask;

    private SharedPreferences myPref;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_addtask);
        usrTask = (EditText)findViewById(R.id.txtTask);
        myPref = getApplicationContext().getSharedPreferences(Register.myClients, MODE_PRIVATE);
    }

    public void btnTask(View v)
    {
        //create a String variable to hold userOn info
        String dataBase = myPref.getString("userOn","offline");
        //create new XML file for for current user
        SharedPreferences userData = getApplicationContext().getSharedPreferences(dataBase, MODE_PRIVATE);
        SharedPreferences.Editor editor = userData.edit();

        //add task as key with value of 0 /*by defualt not done!*/
        editor.putInt(usrTask.getText().toString(),0).commit();

        //go back to the Logged page
        Intent added = new Intent(this,Logged.class);
        this.startActivity(added);//go to logged
        finish();
    }

    public void btnCancle(View v)
    {
        Intent cncl = new Intent(this,Logged.class);
        this.startActivity(cncl);//cancle adding task
        finish();
    }



}
====================================================================================================================================
JAVA MyAdapter======================================================================================================================
package com.example.igor.mytodolist;

import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;

/**
 * Created by Igor on 3/19/2016.
 */
public class MyAdapter extends BaseAdapter
{
    Context context;

    SharedPreferences currUser;
    SharedPreferences.Editor editor;

    //setting up arraylist to /*filter*/ the data threw adapter
    ArrayList<String> tasks = new ArrayList<String>();

    public MyAdapter(Context context, ArrayList<String> tasks)
    {
        this.context=context;
        this.tasks = tasks;
        setPrefs();
    }

    //Method that Returns the current user that is using
    private void setPrefs()
    {
        SharedPreferences myPref= context.getApplicationContext().getSharedPreferences(Register.myClients, Context.MODE_PRIVATE);
        String user = myPref.getString("userOn", "offline");
        currUser = context.getApplicationContext().getSharedPreferences(user,Context.MODE_PRIVATE);
        editor = currUser.edit();
    }

    @Override
    public int getCount() {
        return tasks.size();
    }

    @Override
    public Object getItem(int position) {
        return tasks.get(position);
    }

    @Override
    public long getItemId(int position)
    {
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent)
    {
        //my linearlayout that will hold all the list in!
        LinearLayout myLay = new LinearLayout(context);
        myLay.setOrientation(LinearLayout.VERTICAL);

        //my text view that will appear
        final CheckBox checkBox=new CheckBox(context);
        final TextView textView = new TextView(context);
        textView.setText(tasks.get(position));//show the task
        textView.setTextSize(30);
        textView.setGravity(Gravity.CENTER_HORIZONTAL);
        textView.setWidth(myLay.getWidth() / 2);

        //setting up colors of the lists
        if(currUser.getInt(tasks.get(position),0) == 0)
        {
            checkBox.setChecked(false);
            textView.setTextColor(Color.RED);
        }
        else
        {
            checkBox.setChecked(true);
            textView.setTextColor(Color.BLUE);
        }

        //onclick on the task
        textView.setOnClickListener(new View.OnClickListener(){

            @Override
            public void onClick(View v)
            {
                if(currUser.getInt(tasks.get(position),0)==0)
                {
                    editor.putInt(tasks.get(position), 1);
                    editor.commit();
                    textView.setTextColor(Color.BLUE);
                    Toast.makeText(context,"Done",Toast.LENGTH_SHORT).show();
                }
                else
                {
                    editor.putInt(tasks.get(position), 0);
                    editor.commit();
                    textView.setTextColor(Color.RED);
                    Toast.makeText(context,"Undone",Toast.LENGTH_SHORT).show();
                }
            }
        });

        myLay.addView(textView);
        return myLay;
    }
}
=====================================================================================================================================