public class JoinUs extends AppCompatActivity {

/**
 * 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}.
 */
private SectionsPagerAdapter mSectionsPagerAdapter;

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

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

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    // Create the adapter that will return a fragment for each of the three
    // primary sections of the activity.
    mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

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

    TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);

    mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
    tabLayout.addOnTabSelectedListener(new TabLayout.ViewPagerOnTabSelectedListener(mViewPager));


}


@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_join_us, 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);
}

/**
 * A placeholder fragment containing a simple view.
 */
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) {
        if ( getArguments().getInt(ARG_SECTION_NUMBER) == 1) {
            View rootView = inflater.inflate(R.layout.tab_signin, container, false);
            return rootView;
        }
        else  {
            View rootView = inflater.inflate(R.layout.tab_signup, container, false);
            return rootView;
        }
                //View rootView = inflater.inflate(R.layout.fragment_join_us, container, false);
                //TextView textView = (TextView) rootView.findViewById(R.id.section_label);
                //textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
                //return rootView;
    }
}

/**
 * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
 * one of the sections/tabs/pages.
 */
public class SectionsPagerAdapter extends FragmentPagerAdapter {

    public SectionsPagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {
        // getItem is called to instantiate the fragment for the given page.
        // Return a PlaceholderFragment (defined as a static inner class below).
        return PlaceholderFragment.newInstance(position + 1);
    }

    @Override
    public int getCount() {
        // Show 3 total pages.
        return 2;
    }
}

public class tabSignUp extends Fragment {

DatabaseHelper helper = new DatabaseHelper(getContext());

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.tab_signup, container, false);
    return rootView;
}

    public void onSignUpClick(View v)
    {
        if (v.getId() == R.id.signmeup) {
            EditText name = getActivity().findViewById(R.id.fname);
            EditText email = getActivity().findViewById(R.id.email);
            EditText username = getActivity().findViewById(R.id.username);
            EditText pass = getActivity().findViewById(R.id.password);
            EditText pass2 = getActivity().findViewById(R.id.confpassword);


            String nameStr = name.getText().toString();
            String emailStr = email.getText().toString();
            String usernameStr = username.getText().toString();
            String passStr = pass.getText().toString();
            String pass2Str = pass2.getText().toString();

            if (!passStr.equals(pass2Str)) {
                Toast.makeText(getActivity(), "Passwords don't match", Toast.LENGTH_SHORT).show();

            } else {
                //insert details in database
                Contact c = new Contact();
                c.setName(nameStr);
                c.setEmail(emailStr);
                c.setUsername(usernameStr);
                c.setPass(passStr);

                helper.insertContact(c);

            }

        }
    }


}

public class tabSignIn extends Fragment {

DatabaseHelper helper = new DatabaseHelper(getContext());

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

    return rootView;
}

public void onButtonClick(View v)
{
    if (v.getId() == R.id.signmein){
        EditText username = (EditText) getActivity().findViewById(R.id.usernamein);
        String str = username.getText().toString();

        EditText passwrd = getActivity().findViewById(R.id.passwordin);
        String pass = passwrd.getText().toString();

        String password = helper.searchPass(str);
        if (pass.equals(password))
        {
            //take me to homepage
            Intent i = new Intent (getActivity(),MainActivity.class);
            i.putExtra("Username",str);
            startActivity(i);
        }
        else
            {
                Toast.makeText(getActivity(),"Username and password don't match",Toast.LENGTH_SHORT).show();


            }



    }
}
}