Navigation Drawer

Part-2

Example Code:

MainActivity.java:

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package in.cyberworldtechnologies.navigationdrawer; import android.support.annotation.NonNull; import android.support.design.widget.NavigationView; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.widget.Toolbar; import android.view.MenuItem; import android.widget.Toast; public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener { private DrawerLayout drawer; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = findViewById(R.id.toolbar); setSupportActionBar(toolbar); drawer = findViewById(R.id.drawer_layout); NavigationView navigationView = findViewById(R.id.nav_view); navigationView.setNavigationItemSelectedListener(this); ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close); drawer.addDrawerListener(toggle); toggle.syncState(); if (savedInstanceState == null) { getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new HomeFragment()).commit(); navigationView.setCheckedItem(R.id.nav_home); } } @Override public boolean onNavigationItemSelected(@NonNull MenuItem item) { switch (item.getItemId()) { case R.id.nav_home: getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new HomeFragment()).commit(); break; case R.id.nav_contact: getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new ContactFragment()).commit(); break; case R.id.nav_profile: getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new ProfileFragment()).commit(); break; case R.id.nav_share: Toast.makeText(this, "Share", Toast.LENGTH_SHORT).show(); break; } drawer.closeDrawer(GravityCompat.START); return true; } @Override public void onBackPressed() { if (drawer.isDrawerOpen(GravityCompat.START)) { drawer.closeDrawer(GravityCompat.START); } else { super.onBackPressed(); } } }

fragment_home.xml:

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<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="Home" android:textSize="35sp" /> </RelativeLayout>

HomeFragment.java:

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package in.cyberworldtechnologies.navigationdrawer; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class HomeFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_home, container, false); } }

fragment_contact.xml:

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<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="Contact" android:textSize="35sp" /> </RelativeLayout>

ContactFragment.java:

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package in.cyberworldtechnologies.navigationdrawer; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class ContactFragment extends Fragment { @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_contact, container, false); } }

fragment_profile.xml:

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<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="Profile" android:textSize="35sp" /> </RelativeLayout>

ProfileFragment.java:

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package in.cyberworldtechnologies.navigationdrawer; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class ProfileFragment extends Fragment { @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_profile, container, false); } }