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- <Button
- android:layout_width="match_parent"
- android:layout_height="125dp"
- android:text="Today's Special"
- android:id="@+id/button"
- android:layout_alignParentTop="true"
- android:layout_alignParentLeft="true"
- android:layout_alignParentStart="true"
- android:layout_alignParentRight="true"
- android:layout_alignParentEnd="false" />
- <Button
- android:layout_width="wrap_content"
- android:layout_height="125dp"
- android:text="Appetizers"
- android:id="@+id/button2"
- android:layout_below="@+id/button"
- android:layout_alignParentLeft="true"
- android:layout_alignParentStart="true"
- android:layout_alignParentRight="true"
- android:layout_alignParentEnd="true"
- android:onClick="Go to the Dessert Page"/>
- <Button
- android:layout_width="wrap_content"
- android:layout_height="125dp"
- android:text="Salads"
- android:id="@+id/button3"
- android:layout_below="@+id/button2"
- android:layout_alignParentLeft="true"
- android:layout_alignParentStart="true"
- android:layout_alignParentRight="true"
- android:layout_alignParentEnd="true" />
- <Button
- android:layout_width="wrap_content"
- android:layout_height="125dp"
- android:text="Dessert"
- android:id="@+id/button4"
- android:layout_below="@+id/button3"
- android:layout_alignParentLeft="true"
- android:layout_alignParentStart="true"
- android:layout_alignParentRight="true"
- android:layout_alignParentEnd="true" />
- public class SecondFragment extends Fragment
- {
- View myView;
- @Nullable
- @Override
- public View onCreateView
- (LayoutInflater inflater, ViewGroup container,
- Bundle savedInstanceState)
- {
- myView = inflater.inflate(R.layout.second_layout, container, false);
- return myView;
- }
- }
- public class MainActivity extends
- AppCompatActivity implements
- NavigationView.OnNavigationItemSelectedListener
- {
- @Override
- protected void onCreate(Bundle savedInstanceState)
- {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
- setSupportActionBar(toolbar);
- FloatingActionButton fab =
- (FloatingActionButton) findViewById(R.id.fab);
- fab.setOnClickListener(new View.OnClickListener() {
- @Override
- public void onClick(View view) {
- Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
- .setAction("Action", null).show();
- }
- });
- DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
- ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
- drawer.setDrawerListener(toggle);
- toggle.syncState();
- NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
- navigationView.setNavigationItemSelectedListener(this);
- }
- @Override
- public void onBackPressed() {
- DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
- if (drawer.isDrawerOpen(GravityCompat.START)) {
- drawer.closeDrawer(GravityCompat.START);
- } else {
- super.onBackPressed();
- }
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- // Inflate the menu; this adds items to the action bar if it is present.
- getMenuInflater().inflate(R.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
- if (id == R.id.action_settings) {
- return true;
- }
- return super.onOptionsItemSelected(item);
- }
- @SuppressWarnings("StatementWithEmptyBody")
- @Override
- public boolean onNavigationItemSelected(MenuItem item) {
- // Handle navigation view item clicks here.
- int id = item.getItemId();
- FragmentManager fragmentManager = getFragmentManager();
- if (id == R.id.nav_first_layout)
- {
- fragmentManager.beginTransaction()
- .replace(R.id.content_frame
- , new FirstFragment())
- .commit();
- // Handle the camera action
- }
- else if (id == R.id.nav_second_layout)
- {
- fragmentManager.beginTransaction()
- .replace(R.id.content_frame
- , new SecondFragment())
- .commit();
- }
- else if (id == R.id.nav_third_layout)
- {
- fragmentManager.beginTransaction()
- .replace(R.id.content_frame
- , new ThirdFragment())
- .commit();
- }
- else if (id == R.id.nav_fourth_layout)
- {
- fragmentManager.beginTransaction()
- .replace(R.id.content_frame
- , new FourthFragment())
- .commit();
- }
- else if (id == R.id.nav_fifth_layout)
- {
- fragmentManager.beginTransaction()
- .replace(R.id.content_frame
- , new FifthFragment())
- .commit();
- }
- else if (id == R.id.button)
- {
- fragmentManager.beginTransaction()
- .replace(R.id.content_frame
- , new FifthFragment())
- .commit();
- }
- DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
- drawer.closeDrawer(GravityCompat.START);
- return true;
- }
- }
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