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POChanging menu items in action bar sherlock dynamically
 

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    <p>I have implemented action bar sherlock in my android application. This application has a Shopping Cart functionality. There is a icon on the action bar that takes the user to the cart. I need to dynamically change that icon when items are added to the cart and removed from the cart. That is a number should appear on top of the cart icon in the action bar.</p> <p>Below is a screenshot:</p> <p><img src="https://i.stack.imgur.com/sIRJ0.png" alt="enter image description here"></p> <p>Menu.xml:</p> <pre><code>&lt;menu xmlns:android="http://schemas.android.com/apk/res/android" &gt; &lt;item android:id="@+id/scanner" android:icon="@drawable/ic_nav_scanner" android:showAsAction="always" android:title="@string/scanner"/&gt; &lt;item android:id="@+id/cart" android:icon="@drawable/ic_nav_cart" android:showAsAction="always" android:title="@string/cart"/&gt; &lt;item android:id="@+id/a_More" android:icon="@drawable/ic_nav_more" android:showAsAction="always" android:title="@string/more"&gt; &lt;menu&gt; &lt;item android:id="@+id/location" android:icon="@drawable/ic_nav_dropdown_location" android:showAsAction="always" android:title="@string/location_action"/&gt; &lt;item android:id="@+id/fav" android:icon="@drawable/ic_nav_dropdown_favourite" android:showAsAction="always" android:title="@string/favourites"/&gt; &lt;item android:id="@+id/info" android:icon="@drawable/ic_nav_dropdown_information" android:title="@string/information"/&gt; &lt;/menu&gt; &lt;/item&gt; &lt;/menu&gt; </code></pre> <p>Code:</p> <pre><code>@Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getSupportMenuInflater(); inflater.inflate(R.menu.aiwmain, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { super.onOptionsItemSelected(item); switch (item.getItemId()) { case R.id.scanner: //scanner clicked break; } </code></pre> <p>Any help to change the cart icon on action bar dynamically is appreciated.</p> <p>//EDIT</p> <p>I managed to come up with this bit:</p> <pre><code>@Override public boolean onPrepareOptionsMenu(Menu menu) { DBManager db = DBManager.getSingletonInstance(); int cartItemCount = db.getCartItemCount(this); MenuItem cart = menu.findItem(R.id.cart); MenuItem scanner = menu.findItem(R.id.scanner); if(cartItemCount &gt; 0){ //I want this item to be changed, I do not want to have seperate drawables for all numbers. cart.setIcon(R.drawable.arrow_left); } return super.onPrepareOptionsMenu(menu); } </code></pre>
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    1. USTharakaNirmana
    1. USTharakaNirmana
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      1. VTUpMod
    1. COyou should add your new menu item by overriding `onpreparemenuoptions()`
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      1. USNitin Misra
    2. CODo you have sample code for this?
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      1. USTharakaNirmana
 

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