Android studio deprecated functions

package lejacque1.ribbit2;
import java.util.Locale;
import android.content.Intent;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.support.v4.app.FragmentActivity;
import com.parse.ParseUser;
import android.support.v4.app.ListFragment;

    // ***The TabListener has been deprecated, will look for update later***
    // ***The MainActivity class is implementing TabListener, so the     ***
    // *** activity itself is listening for tab changes. We'll have to   ***
    // *** replace this later. Remember that TabListener is an interface,***
    // *** so we'll be looking for a replacement interface later.        ***
    public class MainActivity extends ActionBarActivity {

    public static final String TAG = MainActivity.class.getSimpleName();

    /**
     * The {@link android.support.v4.view.PagerAdapter} that will provide
     * fragments for each of the sections. We use a
     * {@link FragmentPagerAdapter} derivative, which will keep every
     * loaded fragment in memory. If this becomes too memory intensive, it
     * may be best to switch to a
     * {@link android.support.v4.app.FragmentStatePagerAdapter}.
     */
    SectionsPagerAdapter mSectionsPagerAdapter;

    /**
     * The {@link ViewPager} that will host the section contents.
     */
    ViewPager mViewPager;


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

        // Get the user cached on disk if present
        ParseUser currentUser = ParseUser.getCurrentUser();

        if (currentUser == null) {
            // If no one is logged in, go to the login screen
            navigateToLogin();
        } else {
            Log.i(TAG, currentUser.getUsername());
        }


        // Set up the action bar.
        final ActionBar actionBar = getSupportActionBar();

        // ***This is where setNavigationMode has been deprecated***


        // Create the adapter that will return a fragment for each of the three
        // primary sections of the activity.
        mSectionsPagerAdapter = new SectionsPagerAdapter(this, getSupportFragmentManager());

        // Set up the ViewPager with the sections adapter.
        mViewPager = (ViewPager) findViewById(R.id.pager);
        mViewPager.setAdapter(mSectionsPagerAdapter);
    }



    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        switch (id) {

            case R.id.action_logout:
                ParseUser.logOut();
                navigateToLogin();
                break;


        }
        return super.onOptionsItemSelected(item);
    }


    private void navigateToLogin() {
        Intent intent = new Intent(MainActivity.this, LoginActivity2Activity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(intent);
    }
    /**
     * A placeholder fragment containing a simple view.
     * This is referred to as "DummySectionFragment" in the
     * lesson.
     */
    public static class PlaceholderFragment extends Fragment {
        /**
         * The fragment argument representing the section number for this
         * fragment.
         */
        private static final String ARG_SECTION_NUMBER = "section_number";

        public PlaceholderFragment() {
        }

        /**
         * Returns a new instance of this fragment for the given section
         * number.
         */
        public static PlaceholderFragment newInstance(int sectionNumber) {
            PlaceholderFragment fragment = new PlaceholderFragment();
            Bundle args = new Bundle();
            args.putInt(ARG_SECTION_NUMBER, sectionNumber);
            fragment.setArguments(args);
            return fragment;
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main, container, false);
            return rootView;
        }
    }

}


<android.support.v4.view.ViewPager android:id="@+id/pager"
                                   xmlns:android="http://schemas.android.com/apk/res/android"
                                   xmlns:tools="http://schemas.android.com/tools"
                                   android:layout_width="match_parent"
                                   android:layout_height="match_parent"
                                   tools:context=".MainActivity">

    // *** Here, we add our child view PagerTabStrip***
    <android.support.v4.view.PagerTabStrip
        android:id="@+id/pager_title_strip"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="top"
        android:background="#33b5e5"
        android:textColor="#fff"
        android:paddingTop="4dp"
        android:paddingBottom="4dp" />


</android.support.v4.view.ViewPager>

package lejacque1.ribbit2;

import android.app.AlertDialog;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;

import com.parse.ParseException;
import com.parse.ParseUser;
import com.parse.SignUpCallback;


public class SignUpActivity2Activity extends AppCompatActivity {

    protected EditText mUsername;
    protected EditText mPassword;
    protected EditText mEmail;
    protected Button mSignUpButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setContentView(R.layout.activity_sign_up_activity2);

        mUsername = (EditText)findViewById(R.id.usernameField);
        mPassword = (EditText)findViewById(R.id.passwordField);
        mEmail = (EditText)findViewById(R.id.emailField);
        mSignUpButton = (Button)findViewById(R.id.signupButton);
        mSignUpButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String username = mUsername.getText().toString();
                String password = mPassword.getText().toString();
                String email = mEmail.getText().toString();

                username = username.trim();
                password = password.trim();
                email = email.trim();

                if (username.isEmpty() || password.isEmpty() || email.isEmpty()){
                    AlertDialog.Builder builder = new AlertDialog.Builder(SignUpActivity2Activity.this);
                    builder.setMessage(R.string.signup_error_message)
                            .setTitle(R.string.signup_error_title)
                            .setPositiveButton(android.R.string.ok, null);

                    AlertDialog dialog = builder.create();
                    dialog.show();
                }
                else {
                    setProgressBarIndeterminateVisibility(true);

                    ParseUser newUser = new ParseUser();
                    newUser.setUsername(username);
                    newUser.setPassword(password);
                    newUser.setEmail(email);
                    newUser.signUpInBackground(new SignUpCallback() {
                        @Override
                        public void done(ParseException e) {
                            setProgressBarIndeterminateVisibility(false);

                            if (e == null) {
                                //success
                                Intent intent = new Intent(SignUpActivity2Activity.this, MainActivity.class);
                                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                startActivity(intent);
                            }
                            else {
                                AlertDialog.Builder builder = new AlertDialog.Builder(SignUpActivity2Activity.this);
                                builder.setMessage(e.getMessage())
                                        .setTitle(R.string.signup_error_title)
                                        .setPositiveButton(android.R.string.ok, null);

                                AlertDialog dialog = builder.create();
                                dialog.show();
                            }
                        }
                    });
                }
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_sign_up_activity2, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

package lejacque1.ribbit2;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.parse.LogInCallback;
import com.parse.ParseException;
import com.parse.ParseUser;
import com.parse.SignUpCallback;


public class LoginActivity2Activity extends AppCompatActivity {

    protected EditText mUsername;
    protected EditText mPassword;
    protected Button mLoginButton;
    protected TextView mSignUpTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setContentView(R.layout.activity_login_activity2);

        mSignUpTextView = (TextView) findViewById(R.id.signUpText);
        mSignUpTextView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(LoginActivity2Activity.this,
                        SignUpActivity2Activity.class);
                startActivity(intent);

            }
        });

        mUsername = (EditText) findViewById(R.id.usernameField);
        mPassword = (EditText) findViewById(R.id.passwordField);
        mLoginButton = (Button) findViewById(R.id.loginButton);
        mLoginButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String username = mUsername.getText().toString();
                String password = mPassword.getText().toString();

                username = username.trim();
                password = password.trim();

                if (username.isEmpty() || password.isEmpty()) {
                    AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity2Activity.this);
                    builder.setMessage(R.string.login_error_message)
                            .setTitle(R.string.login_error_title)
                            .setPositiveButton(android.R.string.ok, null);

                    AlertDialog dialog = builder.create();
                    dialog.show();
                } else {

                    setProgressBarIndeterminateVisibility(true);

                    ParseUser.logInInBackground(username, password, new LogInCallback() {
                        @Override
                        public void done(ParseUser user, ParseException e) {
                            setProgressBarIndeterminateVisibility(false);

                            if (e == null) {
                                Intent intent = new Intent(LoginActivity2Activity.this, MainActivity.class);
                                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                startActivity(intent);
                            } else {
                                AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity2Activity.this);
                                builder.setMessage(e.getMessage())
                                        .setTitle(R.string.login_error_title)
                                        .setPositiveButton(android.R.string.ok, null);

                                AlertDialog dialog = builder.create();
                                dialog.show();
                            }
                        }
                    });
                }
            }
        });
    }


                    @Override //ADDED, ORIGINAL CODE IS BELOW.
                     public boolean onCreateOptionsMenu(Menu menu) {
                     // Inflate the menu; this adds items to the action bar if it is present.
                     getMenuInflater().inflate(R.menu.menu_login_activity2, menu);
                     return true;
    }

}

                    /*@Override
                    public boolean onOptionsItemSelected (MenuItem item){
                        // Handle action bar item clicks here. The action bar will
                        // automatically handle clicks on the Home/Up button, so long
                        // as you specify a parent activity in AndroidManifest.xml.
                        int id = item.getItemId();

                        //noinspection SimplifiableIfStatement
                        if (id == R.id.action_settings) {
                            return true;
                        }

                        return super.onOptionsItemSelected(item);
                    }
                }*/
package lejacque1.ribbit2;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.parse.LogInCallback;
import com.parse.ParseException;
import com.parse.ParseUser;
import com.parse.SignUpCallback;


public class LoginActivity2Activity extends AppCompatActivity {

    protected EditText mUsername;
    protected EditText mPassword;
    protected Button mLoginButton;
    protected TextView mSignUpTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setContentView(R.layout.activity_login_activity2);

        mSignUpTextView = (TextView) findViewById(R.id.signUpText);
        mSignUpTextView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(LoginActivity2Activity.this,
                        SignUpActivity2Activity.class);
                startActivity(intent);

            }
        });

        mUsername = (EditText) findViewById(R.id.usernameField);
        mPassword = (EditText) findViewById(R.id.passwordField);
        mLoginButton = (Button) findViewById(R.id.loginButton);
        mLoginButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String username = mUsername.getText().toString();
                String password = mPassword.getText().toString();

                username = username.trim();
                password = password.trim();

                if (username.isEmpty() || password.isEmpty()) {
                    AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity2Activity.this);
                    builder.setMessage(R.string.login_error_message)
                            .setTitle(R.string.login_error_title)
                            .setPositiveButton(android.R.string.ok, null);

                    AlertDialog dialog = builder.create();
                    dialog.show();
                } else {

                    setProgressBarIndeterminateVisibility(true);

                    ParseUser.logInInBackground(username, password, new LogInCallback() {
                        @Override
                        public void done(ParseUser user, ParseException e) {
                            setProgressBarIndeterminateVisibility(false);

                            if (e == null) {
                                Intent intent = new Intent(LoginActivity2Activity.this, MainActivity.class);
                                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                startActivity(intent);
                            } else {
                                AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity2Activity.this);
                                builder.setMessage(e.getMessage())
                                        .setTitle(R.string.login_error_title)
                                        .setPositiveButton(android.R.string.ok, null);

                                AlertDialog dialog = builder.create();
                                dialog.show();
                            }
                        }
                    });
                }
            }
        });
    }


                    @Override //ADDED, ORIGINAL CODE IS BELOW.
                     public boolean onCreateOptionsMenu(Menu menu) {
                     // Inflate the menu; this adds items to the action bar if it is present.
                     getMenuInflater().inflate(R.menu.menu_login_activity2, menu);
                     return true;
    }

}

                    /*@Override
                    public boolean onOptionsItemSelected (MenuItem item){
                        // Handle action bar item clicks here. The action bar will
                        // automatically handle clicks on the Home/Up button, so long
                        // as you specify a parent activity in AndroidManifest.xml.
                        int id = item.getItemId();

                        //noinspection SimplifiableIfStatement
                        if (id == R.id.action_settings) {
                            return true;
                        }

                        return super.onOptionsItemSelected(item);
                    }
                }*/
package lejacque1.ribbit2;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.parse.LogInCallback;
import com.parse.ParseException;
import com.parse.ParseUser;
import com.parse.SignUpCallback;


public class LoginActivity2Activity extends AppCompatActivity {

    protected EditText mUsername;
    protected EditText mPassword;
    protected Button mLoginButton;
    protected TextView mSignUpTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setContentView(R.layout.activity_login_activity2);

        mSignUpTextView = (TextView) findViewById(R.id.signUpText);
        mSignUpTextView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(LoginActivity2Activity.this,
                        SignUpActivity2Activity.class);
                startActivity(intent);

            }
        });

        mUsername = (EditText) findViewById(R.id.usernameField);
        mPassword = (EditText) findViewById(R.id.passwordField);
        mLoginButton = (Button) findViewById(R.id.loginButton);
        mLoginButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String username = mUsername.getText().toString();
                String password = mPassword.getText().toString();

                username = username.trim();
                password = password.trim();

                if (username.isEmpty() || password.isEmpty()) {
                    AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity2Activity.this);
                    builder.setMessage(R.string.login_error_message)
                            .setTitle(R.string.login_error_title)
                            .setPositiveButton(android.R.string.ok, null);

                    AlertDialog dialog = builder.create();
                    dialog.show();
                } else {

                    setProgressBarIndeterminateVisibility(true);

                    ParseUser.logInInBackground(username, password, new LogInCallback() {
                        @Override
                        public void done(ParseUser user, ParseException e) {
                            setProgressBarIndeterminateVisibility(false);

                            if (e == null) {
                                Intent intent = new Intent(LoginActivity2Activity.this, MainActivity.class);
                                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                                startActivity(intent);
                            } else {
                                AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity2Activity.this);
                                builder.setMessage(e.getMessage())
                                        .setTitle(R.string.login_error_title)
                                        .setPositiveButton(android.R.string.ok, null);

                                AlertDialog dialog = builder.create();
                                dialog.show();
                            }
                        }
                    });
                }
            }
        });
    }


                    @Override //ADDED, ORIGINAL CODE IS BELOW.
                     public boolean onCreateOptionsMenu(Menu menu) {
                     // Inflate the menu; this adds items to the action bar if it is present.
                     getMenuInflater().inflate(R.menu.menu_login_activity2, menu);
                     return true;
    }

}

                    /*@Override
                    public boolean onOptionsItemSelected (MenuItem item){
                        // Handle action bar item clicks here. The action bar will
                        // automatically handle clicks on the Home/Up button, so long
                        // as you specify a parent activity in AndroidManifest.xml.
                        int id = item.getItemId();

                        //noinspection SimplifiableIfStatement
                        if (id == R.id.action_settings) {
                            return true;
                        }

                        return super.onOptionsItemSelected(item);
                    }
                }*/

package lejacque1.ribbit2;

import android.support.v4.app.FragmentManager;
import android.support.v4.view.PagerAdapter;
import android.view.View;

/**
 * Created by yuriana on 10/05/2015.
 */
public class SectionsPagerAdapter extends PagerAdapter {
    public SectionsPagerAdapter(MainActivity mainActivity, FragmentManager supportFragmentManager) {
    }

    @Override
    public int getCount() {
        return 3;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return false;
    }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="lejacque1.ribbit2" >


    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme"
        android:name=".Ribbit2Application" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".LoginActivity2Activity"
            android:label="@string/title_activity_login_activity2"
            android:screenOrientation="portrait" >
        </activity>
        <activity
            android:name=".SignUpActivity2Activity"
            android:label="@string/title_activity_sign_up_activity2"
            android:screenOrientation="portrait" >

        </activity>
    </application>

</manifest>