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Sliding Menu With Expandable List


Android Studio Project


Main.java

public class Main extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {

    private DrawerLayout mDrawerLayout;
    ExpandableListAdapter mMenuAdapter;
    ExpandableListView expandableList;
    List<ExpandedMenuModel> listDataHeader;
    HashMap<ExpandedMenuModel, List<String>> listDataChild;

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


        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);//   Toolbar Action        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();
                }
            });

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, mDrawerLayout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        mDrawerLayout.setDrawerListener(toggle);
        toggle.syncState();

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);

        expandableList = (ExpandableListView) findViewById(R.id.navigationmenu);

        if (navigationView != null) {
            setupDrawerContent(navigationView);
        }

        prepareListData();
        mMenuAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild, expandableList);

        // setting list adapter        expandableList.setAdapter(mMenuAdapter);

        expandableList.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
            @Override            public boolean onChildClick(ExpandableListView expandableListView, View view, int i, int i1, long l) {
                //Log.d("DEBUG", "submenu item clicked");                return false;
            }
        });
        expandableList.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
            @Override            public boolean onGroupClick(ExpandableListView expandableListView, View view, int i, long l) {
                //Log.d("DEBUG", "heading clicked");                return false;
            }
        });

    }

    private void prepareListData() {
        listDataHeader = new ArrayList<ExpandedMenuModel>();
        listDataChild = new HashMap<ExpandedMenuModel, List<String>>();

        ExpandedMenuModel item1 = new ExpandedMenuModel();
        item1.setIconName("Home");
        item1.setIconImg(android.R.drawable.ic_dialog_alert);
        // Adding data header        listDataHeader.add(item1);

        ExpandedMenuModel item2 = new ExpandedMenuModel();
        item2.setIconName("heading2");
        item2.setIconImg(android.R.drawable.ic_delete);
        listDataHeader.add(item2);

        ExpandedMenuModel item3 = new ExpandedMenuModel();
        item3.setIconName("heading3");
        item3.setIconImg(android.R.drawable.ic_delete);
        listDataHeader.add(item3);

        // Adding child data        List<String> heading1 = new ArrayList<String>();
        heading1.add("Submenu of item 1");

        List<String> heading2 = new ArrayList<String>();
        heading2.add("Submenu of item 2");
        heading2.add("Submenu of item 2");
        heading2.add("Submenu of item 2");

        listDataChild.put(listDataHeader.get(0), heading1);// Header, Child data        listDataChild.put(listDataHeader.get(1), heading2);

    }

    private void setupDrawerContent(NavigationView navigationView) {
        //revision: this don't works, use setOnChildClickListener() and setOnGroupClickListener() above instead        navigationView.setNavigationItemSelectedListener(
                new NavigationView.OnNavigationItemSelectedListener() {
                    @Override                    public boolean onNavigationItemSelected(MenuItem menuItem) {
                        menuItem.setChecked(true);
                        mDrawerLayout.closeDrawers();
                        return true;
                    }
                });
    }

    @Override    public boolean onNavigationItemSelected(MenuItem item) {
        return false;
    }
}






main.xml










<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/drawer_layout"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:fitsSystemWindows="true"    tools:openDrawer="start">

   <include        layout="@layout/app_bar_main"        android:layout_width="match_parent"        android:layout_height="match_parent" />

    <android.support.design.widget.NavigationView        android:id="@+id/nav_view"        android:layout_width="wrap_content"        android:layout_height="match_parent"        android:layout_gravity="start"        android:layout_marginTop="60dp"        app:headerLayout="@layout/nav_header_main"        android:fitsSystemWindows="true">

        <ExpandableListView            android:id="@+id/navigationmenu"            android:layout_width="wrap_content"            android:layout_height="match_parent"            android:layout_marginTop="165dp"            android:background="@android:color/white"            android:groupIndicator="@null"            />


    </android.support.design.widget.NavigationView>

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










app_bar_main.xml




<?xml version="1.0" encoding="utf-8"?><android.support.design.widget.CoordinatorLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:fitsSystemWindows="true"    tools:context="co.mj.bmit.MainActivity">

    <android.support.design.widget.AppBarLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar            android:id="@+id/toolbar"            android:layout_width="match_parent"            android:layout_height="?attr/actionBarSize"            android:background="?attr/colorPrimary"            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>


    <FrameLayout        android:id="@+id/flContent"        android:layout_marginTop="50dp"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />



    <android.support.design.widget.FloatingActionButton        android:id="@+id/fab"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="bottom|end"        android:layout_margin="@dimen/fab_margin"        android:src="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>
















ExpandableListAdapter.java






public class ExpandableListAdapter extends BaseExpandableListAdapter {
    String Tag=" Dashboard ";
    String tag=" ExpandableListAdapter ";


    private Context mContext;
    private List<ExpandedMenuModel> mListDataHeader; // header titles
    // child data in format of header title, child title    private HashMap<ExpandedMenuModel, List<String>> mListDataChild;
    ExpandableListView expandList;

    public ExpandableListAdapter(Context context, List<ExpandedMenuModel> listDataHeader, HashMap<ExpandedMenuModel, List<String>> listChildData, ExpandableListView mView) {
        this.mContext = context;
        this.mListDataHeader = listDataHeader;
        this.mListDataChild = listChildData;
        this.expandList = mView;
    }

    @Override    public int getGroupCount() {
        int i = mListDataHeader.size();
        Log.d(Tag,tag+"GROUPCOUNT "+ String.valueOf(i));
        return this.mListDataHeader.size();
    }

    @Override    public int getChildrenCount(int groupPosition) {
        int childCount = 0;
        if (groupPosition != 2) {
            childCount = this.mListDataChild.get(this.mListDataHeader.get(groupPosition))
                    .size();
        }
        return childCount;
    }

    @Override    public Object getGroup(int groupPosition) {
        return this.mListDataHeader.get(groupPosition);
    }

    @Override    public Object getChild(int groupPosition, int childPosition) {
        Log.d("CHILD", mListDataChild.get(this.mListDataHeader.get(groupPosition))
                .get(childPosition).toString());
        return this.mListDataChild.get(this.mListDataHeader.get(groupPosition))
                .get(childPosition);
    }

    @Override    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override    public boolean hasStableIds() {
        return false;
    }

    @Override    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
            ExpandedMenuModel headerTitle = (ExpandedMenuModel) getGroup(groupPosition);
                if (convertView == null)
                {
                    /**                     * @XML -slidingmenu_listheader.xml                     */                    LayoutInflater infalInflater = (LayoutInflater) this.mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                    convertView = infalInflater.inflate(R.layout.slidingmenu_listheader, null);
                }
            TextView lblListHeader = (TextView) convertView.findViewById(R.id.submenu);

                lblListHeader.setTypeface(null, Typeface.NORMAL);
                lblListHeader.setText(headerTitle.getIconName());
            ImageView headerIcon = (ImageView) convertView.findViewById(R.id.iconimage);
                 headerIcon.setImageResource(headerTitle.getIconImg());
        return convertView;
    }

    @Override    public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
        final String childText = (String) getChild(groupPosition, childPosition);

        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this.mContext                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.slidingmenu_list_submenu, null);
        }

        TextView txtListChild = (TextView) convertView
                .findViewById(R.id.submenu);

        txtListChild.setText(childText);

        return convertView;
    }

    @Override    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }
}






slidingmenu_listheader.xml






<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="2dp"    android:orientation="vertical">

    <LinearLayout        android:layout_width="fill_parent"        android:layout_height="match_parent"        android:layout_marginLeft="8dp"        android:orientation="horizontal">

        <ImageView            android:id="@+id/iconimage"            android:layout_width="50dp"            android:layout_height="50dp"            android:paddingBottom="10dp"            android:paddingLeft="10dp"            android:paddingTop="10dp"/>

        <TextView            android:id="@+id/submenu"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:padding="10dp"            android:textColor="#000000"            android:text="txet"            android:textSize="20sp"/>

    </LinearLayout>

</LinearLayout>







slidingmenu_list_submenu.xml






<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical">

    <TextView        android:id="@+id/submenu"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginLeft="20dp"        android:padding="10dp"        android:typeface="serif"        android:textColor="#000000"        android:textSize="18sp"/>

</LinearLayout>













ExpandedMenuModel .java






public class ExpandedMenuModel {
    String iconName = "";
    int iconImg = -1; // menu icon resource id
    public String getIconName() {
        return iconName;
    }
    public void setIconName(String iconName) {
        this.iconName = iconName;
    }
    public int getIconImg() {
        return iconImg;
    }
    public void setIconImg(int iconImg) {
        this.iconImg = iconImg;
    }
}



















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