CODEWITHSUNDEEP
android
casillas
casillas

Reputation: 16793

Get selected menu item's index value in the navigation drawer

I have implemented navigation drawer, it is working fine. The only problem that I have to make selected item to deselect when the navigationdrawer closes. I wonder how could I able to get the index value of selected menu item.

navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
  @Override
  public boolean onNavigationItemSelected(MenuItem menuItem) {
      menuItem.setChecked(false);
   }
)}

Upvotes: 15

Views: 21308

Answers (6)

Xisthename
Xisthename

Reputation: 11

This is all you need, it deselects and selects the new one

navigationView.setCheckedItem(item.getItemId());

And it should go at the bottom of onNavigationItemSelected.

To make it more clear here's an example

@Override
public boolean onNavigationItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.nav_home:
            controller.setFragment(new HomeFragment());
            break;
        case R.id.nav_settings:
            controller.setFragment(new SettingsFragment());
            break;
        case R.id.nav_logout:
            Intent intent = new Intent(getApplicationContext(), LoginActivity.class);
            intent.putExtra(autoLogin, false);
            startActivity(intent);
            break;
    }
    navigationView.setCheckedItem(item.getItemId());
    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    drawer.closeDrawer(GravityCompat.START);
    return false;
}

Upvotes: 1

Rasheeq Zaman
Rasheeq Zaman

Reputation: 37

Another easy way that worked for me

public boolean onNavigationItemSelected(MenuItem item) {
    int index = (item.getItemId() % item.getGroupId())-1;
    ....
}

I think, this would be much more efficient than using For loop or Switch case.

If you still have problems then my suggestion would be to check your Item Id and group Id in Log-cat so that you would have a better understanding of what you are dealing with.

Upvotes: 1

wal
wal

Reputation: 17729

First assign your navigationMenu to a class field

private NavigationView navigationView;
private int currentPosition;
...
navigationView = (NavigationView) findViewById(R.id.nav_view);

Now in the menu callback you can loop over the menu items :

public boolean onNavigationItemSelected(MenuItem item) {
    for (int i=0;i<navigationView.getMenu().size();i++){
        if(item==navigationView.getMenu().getItem(i)){
            currentPosition=i;
            break;
        }
    }
 ....
}

You can change the order of the menu items without breaking anything

Upvotes: 1

Ajinkya
Ajinkya

Reputation: 1077

Try this to get navigation item at position 0 getItem(index) will give you desired item 

navigationView.getMenu().getItem(selectedposition).setChecked(false);

also use this link for reference for getting seleted item http://thegeekyland.blogspot.in/2015/11/navigation-drawer-how-set-selected-item.html

use below code for getting selected position

int selectedposition= 0;

    navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(MenuItem menuItem) {
            switch (menuItem.getItemId()) {
               case R.id.firstitemid:
                    selectedposition= 0;
                    break;
               case R.id.seconditemid:
                    selectedposition= 1;
                    break;
               case R.id.thirditemid:
                    selectedposition= 2;
                    break;
            }
            return true;
        }
    });

Upvotes: 3

N J
N J

Reputation: 27515

One way to do is store menu item ID in variable e.g checkedItemID

navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
  @Override
  public boolean onNavigationItemSelected(MenuItem menuItem) {
      menuItemID=menuItem.getItemId();
   }
)}

Then on implement

mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
            R.drawable.ic_drawer, R.string.drawer_open, R.string.drawer_close) {

        public void onDrawerClosed(View view) {
            super.onDrawerClosed(view);
            // Do whatever you want here

         navigationView.getMenu().findItem(menuItemID).setChecked(false);
        }

        public void onDrawerOpened(View drawerView) {
            super.onDrawerOpened(drawerView);
            // Do whatever you want here
        }
    };
// Set the drawer toggle as the DrawerListener
mDrawerLayout.setDrawerListener(mDrawerToggle);

Upvotes: 16

Chintan Bawa
Chintan Bawa

Reputation: 1386

Make a variable position of int datatype. Firstly set its value to 0 and onNavigationItemSelected change its value to menuItem index(like 0 or 1 or 2 and so on).Now this position will provide you the index of selected menuItem. 

int position = 0;
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
    @Override
    public boolean onNavigationItemSelected(MenuItem menuItem) {
        switch (menuItem.getItemId()) {
           case R.id.first:
                position = 0;
                break;
           case R.id.second:
                position = 1;
                break;
           case R.id.third:
                position = 2;
                break;
        }
        return true;
    }
});

Upvotes: 5

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