Navigation Drawer in Android Studio

Introduction

 

A Navigation Drawer is a panel that appears when the user swipes from the left edge of the screen. We use fragments to make this. The panel that appears can contain a list, which when clicked loads a new fragment activity.

 

In this article, we will create a simple Navigation Drawer with four fragments. I have added images in these fragments. You can add whatever you want, like TextView, ListView etcetera.

 

Step 1

 

The "strings.xml" used are:

<resources>
   <string name="app_name">NavigationDrawerNew</string>
   <string name="action_settings">Settings</string>
   <string name="hello_world">Hello world!</string>
   <string name="open">List</string>
   <string name="close">Main Page</string>
</resources>

Step 2

 

Open "activity_main" and add the following code to it:

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
                                        xmlns:tools="http://schemas.android.com/tools"
                                        android:id="@+id/drawer_layout"
                                        android:layout_width="400dp"
                                        android:layout_height="600dp"
                                        tools:context=".MainActivity"
                                        android:background="#beb6ac"
                                        >
  <FrameLayout
          android:id="@+id/main"
          android:layout_width="match_parent"
          android:layout_height="match_parent" >
  </FrameLayout>

  <ListView
          android:id="@+id/drawer"
          android:layout_width="240dp"
          android:layout_height="match_parent"
          android:layout_gravity="start"
          android:background="#454545"
          android:choiceMode="singleChoice"/>

</android.support.v4.widget.DrawerLayout>

The layout looks like:

 

 

DrawerLayout acts as a top-level container for window content that allows for interactive "drawer" views to be pulled out from the edge of the window.

 

Note that you need to provide exact layout_height and layout_width in DrawerLayout (in dp). Giving "match_parent" etcetera will give you a rendering error.

 

Step 3

 

Let us now make a layout file for the first fragment.

 

Right-click on the layout then select "New" -> "Layout resource file". Name this file as "first_fragment_layout" and add the following to it:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical"
               >
  <ImageView
          android:id="@+id/textView1"
          android:layout_width="800dp"
          android:layout_height="800dp"
          android:src="@drawable/one"
          android:layout_marginTop="20dp"
          android:layout_marginLeft="50dp"
          android:layout_marginRight="30dp"
            />

</RelativeLayout>

The layout looks like:

 

 

Step 4

 

This describes the layout file for the second fragment.

 

Right-click on the layout then select "New" -> "Layout resource file". Name this file as "second_fragment_layout" and add the following to it:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" >
  <ImageView
          android:id="@+id/textView1"
          android:layout_width="800dp"
          android:layout_height="800dp"
          android:src="@drawable/two"
          android:layout_marginTop="20dp"
          android:layout_marginLeft="50dp"
          android:layout_marginRight="30dp"
            />
</RelativeLayout>

The layout looks like:

 

 

Step 5

 

This describes the layout file for the third fragment.

 

Right-click on the layout then select "New" -> "Layout resource file". Name this file as "third_fragment_layout" and add the following to it:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" >
  <ImageView
          android:id="@+id/textView1"
          android:layout_width="800dp"
          android:layout_height="800dp"
          android:src="@drawable/three"
          android:layout_marginTop="20dp"
          android:layout_marginLeft="50dp"
          android:layout_marginRight="30dp"
            />
</RelativeLayout>

The layout looks like:

 

 

Step 6

 

This describes the Java class for the first fragment.

 

Right-click on your package name then select "New" -> "Java class". Name it as "FirstFragment" and add the following code to it:

package com.chhavi.navigationdrawernew;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class FirstFragment extends Fragment {
    public static Fragment newInstance(Context context) {
        FirstFragment frag = new FirstFragment();
        return frag;
    }

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

        ViewGroup root = (ViewGroup) inflater.inflate(R.layout.first_fragment_layout, null);
        return root;
    }
}

Step 7

 

This describes the Java class for the second fragment.

 

Right-click on your package name then select "New" -> "Java class". Name it as "SecondFragment" and add the following code to it:

package com.chhavi.navigationdrawernew;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class SecondFragment extends Fragment {

    public static Fragment newInstance(Context context) {
        SecondFragment frag = new SecondFragment();
        return frag;
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        ViewGroup root = (ViewGroup) inflater.inflate(R.layout.second_fragment_layout, null);
        return root;
    }
}

Step 8

 

This describes the Java class for the third fragment.

 

Right-click on your package name then select "New" -> "Java class". Name it as "ThirdFragment" and add the following code to it:

package com.chhavi.navigationdrawernew;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class ThirdFragment extends Fragment {

    public static Fragment newInstance(Context context) {
        ThirdFragment f = new ThirdFragment();
        return f;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        //return super.onCreateView(inflater, container, savedInstanceState);
        ViewGroup root = (ViewGroup) inflater.inflate(R.layout.third_fragment_layout, null);
        return root;
    }
}

Step 9

 

For returning to the main page again.

 

Right-click on your package name then select "New" -> "Java class". Name it as "MainPageFragment" and add the following code to it:

package com.chhavi.navigationdrawernew;

import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class MainPageFragment extends Fragment {
    public static Fragment newInstance(Context context) {
        MainPageFragment frag = new MainPageFragment();
        return frag;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        //return super.onCreateView(inflater, container, savedInstanceState);
        ViewGroup root = (ViewGroup) inflater.inflate(R.layout.activity_main, null);
        return root;
    }
}

Step 10

 

Open "MainActivity.java" and add the following code to it:

package com.chhavi.navigationdrawernew;

import android.app.ActionBar;
import android.os.Bundle;
import android.app.Activity;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends FragmentActivity {

    ActionBarDrawerToggle icon;
    final String[] listContent ={"Fragment One","Fragment Two","Fragment Three","Main Page"};
    final String[] fragments ={
            "com.chhavi.navigationdrawernew.FirstFragment",
            "com.chhavi.navigationdrawernew.SecondFragment",
            "com.chhavi.navigationdrawernew.ThirdFragment",
            "com.chhavi.navigationdrawernew.MainPageFragment"};

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

        ArrayAdapter<String> ad = new ArrayAdapter<String>(getActionBar().getThemedContext(), android.R.layout.simple_list_item_1, listContent);

        final DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer_layout);
        final ListView list = (ListView) findViewById(R.id.drawer);
        list.setAdapter(ad);
        list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, final int position, long id) {
                drawer.setDrawerListener( new DrawerLayout.SimpleDrawerListener(){
                    @Override
                    public void onDrawerClosed(View drawerView){
                        super.onDrawerClosed(drawerView);
                        FragmentTransaction transition = getSupportFragmentManager().beginTransaction();
                        transition.replace(R.id.main, Fragment.instantiate(MainActivity.this, fragments[position]));
                        transition.commit();
                    }
                });
                drawer.closeDrawer(list);
            }
        });
    }

    @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;

    }
}

Output snapshots

 

First screen:

 

 

On swiping:

 

 

Selecting fragment one:

 

 

Selecting fragment two:

 

 

Selecting fragment three:

 

 

Thank you..... Enjoy coding :)