CODEWITHSUNDEEP
androidandroid-actionbar
Devrath
Devrath

Reputation: 42844

How to update the text of menu in android actionbar

What i have::

I have a menu in actionbar it has two sub-items in it

buffet_map_cart.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >

    <item
        android:id="@+id/action_cart"
        android:icon="@drawable/ic_action_camera"
        android:showAsAction="ifRoom"
        android:title="cart">
        <menu>
            <item
                android:id="@+id/action_cart_buy"
                android:icon="@drawable/ic_action_camera"
                android:title="Sort by newest"/>
            <item
                android:id="@+id/action_cart_reserve"
                android:icon="@drawable/button_reserve_selector"
                android:title="Sort by rating"/>
        </menu>
    </item>

</menu>

What i am trying to do::

Upvotes: 1

Views: 340

Answers (3)

Yous
Yous

Reputation: 728

You can use onPrepareOptionsMenu(Menu) for dynamic updates:

Prepare the Screen's standard options menu to be displayed. This is called right before the menu is shown, every time it is shown. You can use this method to efficiently enable/disable items or otherwise dynamically modify the contents.

You can use it like:

@Override
public boolean onPrepareOptionsMenu(Menu menu) {
    MenuItem buyItem = menu.findItem(R.id.action_cart_buy);
    MenuItem reserveItem = menu.findItem(R.id.action_cart_reserve);
    buyItem.setTitle("New buyItem String");
    reserveItem.setTitle("New reserveItem String");

    return super.onPrepareOptionsMenu(menu);
}

Upvotes: 2

David Ferrand
David Ferrand

Reputation: 5480

You have access to the Menu object in onCreateOptionsMenu or onPrepareOptionsMenu (better).

public boolean onPrepareOptionsMenu(Menu menu) {
    MenuItem item = menu.findItem(R.id.action_cart_buy);
    item.setTitle("Any title");

    return super.onPrepareOptionsMenu(menu);
}

To make the UI update your ActionBar at the right time, you have to call:

invalidateOptionsMenu();

Upvotes: 0

Pozzo Apps
Pozzo Apps

Reputation: 1857

Take a look at findItem from Menu and than MenuItem, there is a setTitle.

Edit-- There is a topic called "Changing menu items at runtime" in this article which may help you as well.

Upvotes: 1

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