tasker

package com.example.app0811.menu;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.InputType;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {
    Context context;
    EditText userName;
    EditText userPass;
    SharedPreferences myPref ;
    SharedPreferences.Editor editor;


    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        userName=(EditText)findViewById(R.id.username);
        userPass=(EditText)findViewById(R.id.password);
        context=this;

        myPref = getSharedPreferences("userPref", MODE_PRIVATE);
        editor = myPref.edit();


        final String getUserName = checkIfLogged();
        if (!getUserName.equals("na"))
        {
            startTaskActivity(getUserName);
        }
    }

    public void btnLogin(View v)
    {
        if (checkUser())
        {
            updateLogged();
            userName.requestFocus();
            startTaskActivity(userName.getText().toString());
            userName.setText("");
            userPass.setText("");
            userName.requestFocus();

        }
        else
        {
            Toast.makeText(this, "Error in user name or password", Toast.LENGTH_SHORT).show();
        }
    }

    public void btnRegister(View v)
    {
        Intent registerIntent = new Intent(this,Register.class);
        startActivity(registerIntent);
    }


    private String checkIfLogged()
    {

        return myPref.getString("logged","na");
    }

    private void updateLogged()
    {
        //move user to loged mode
        editor.putString("logged", userName.getText().toString());
        editor.commit();
    }

    private void startTaskActivity(String loggedUserName)
    {
        //move to task activity
        Intent taskIntent = new Intent(this,TaskList.class);
        taskIntent.putExtra("logged",loggedUserName);
        startActivity(taskIntent);

    }

    private boolean checkUser()
    {
        if (userName.getText().toString().isEmpty() || userPass.getText().toString().isEmpty()) return false;
        return myPref.getString(userName.getText().toString(),"na").equals(userPass.getText().toString());
    }
}
=============================================================================================================================
register:

package com.example.app0811.menu;

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

public class Register extends Activity {
    EditText userName;
    EditText userPass;
    EditText userPassCheck;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        userName=(EditText)findViewById(R.id.name);
        userPass=(EditText)findViewById(R.id.pass);
        userPassCheck=(EditText)findViewById(R.id.pass1);
    }

    public void btnCancel(View v)
    {
        finish();
    }

    public void btnRegister(View v)
    {
        if (checkUser())
        {
            finish();
        }
    }

    private boolean checkUser()
    {
        if (userName.getText().toString().isEmpty() || userPass.getText().toString().isEmpty())
        {
            Toast.makeText(Register.this, "Fill all fields", Toast.LENGTH_SHORT).show();
            return false;
        }

        if (!userPass.getText().toString().equals(userPassCheck.getText().toString()))
        {
            Toast.makeText(Register.this, "Password not match", Toast.LENGTH_SHORT).show();
            return false;
        }

        SharedPreferences myPref = getSharedPreferences("userPref",MODE_PRIVATE);
        if (myPref.contains(userName.getText().toString()))
        {
            Toast.makeText(Register.this, "User already exists", Toast.LENGTH_SHORT).show();
            return false;
        }

        SharedPreferences.Editor editor = myPref.edit();
        editor.putString(userName.getText().toString(),userPass.getText().toString());
        editor.commit();
        return true;
    }

}
==============================================================================================================================
TaskAdapter:

package com.example.app0811.menu;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

import java.util.List;

/**
 * Created by App0811 on 3/27/2016.
 */
public class TaskAdapter extends BaseAdapter {
    Context context;
    String userName;
    List<utlShared> taskList;

    public TaskAdapter(Context context,List<utlShared> myTaskList)
    {
        this.context=context;
        taskList= myTaskList;
    }

    public int getCount() {
        return 0;
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        return null;
    }
}
====================================================================================================================================
utlShared:

package com.example.app0811.menu;

import android.content.Context;
import android.content.SharedPreferences;

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

/**
 * Created by App0811 on 3/27/2016.
 */
public class utlShared {
    private Context context;
    private SharedPreferences userPref;
    private SharedPreferences.Editor editor;
    public String taskName;
    public Boolean taskDone;
    private String userName;
    private ArrayList<utlShared> myTasks;

    public utlShared(String taskName, Boolean taskDone)
    {
        this.taskName=taskName;
        this.taskDone=taskDone;
    }

    public utlShared(Context context, String userName)
    {
        //get context
        this.context = context;
        //get username for shared preferances file
        this.userName=userName;
        userPref=context.getSharedPreferences(userName, Context.MODE_PRIVATE);
        editor = userPref.edit();
        //create new list
        myTasks = new ArrayList<utlShared>();
        //get all tasks to list
        getTasks();
    }

    public void newTask(String taskName)
    {
        //PUT NEW TASK INTO SHARED PREFERANCES
        editor.putString(taskName,"0");
        editor.commit();
        //PUT TASK INTO LIST
        myTasks.add(new utlShared(taskName, false));
    }

    public void removeTask(String taskName)
    {
        //REMOVE TASK FROM SHARED PREFERANCES
        editor.remove(taskName);
        editor.commit();
        //REMOVE TASK FROM LIST
        myTasks.remove(taskName);
    }
    public void doneTask(String taskName, boolean taskDone)
    {

        //CHANGE TASK IN SHARED PREFERANCES
        editor.putBoolean(taskName, taskDone);
        //REMOVE TASK FROM LIST
        myTasks.remove(taskName);
        //ADD TASK WITH NEW TASK DONE INTO LIST
        myTasks.add(new utlShared(taskName, taskDone));
    }
    public void getTasks()
    {
        //GET ALL TASK FROM SHARED PREFERANCES
        Map<String,?> userTasks= userPref.getAll();
        for(Map.Entry<String,?> singleTask:userTasks.entrySet())
        {
            if (!singleTask.getKey().isEmpty())
                //using parse to store boolean
                //Boolean.parseBoolean((String) singleTask.getValue())
                myTasks.add(new utlShared(singleTask.getKey(),Boolean.parseBoolean((String) singleTask.getValue())));
        }
    }

    public ArrayList<utlShared> getAllTasks()
    {
        return myTasks;
    }
}
===============================================================================================================================