Question

How to show Indeterminate ProgressBar when Refresh button is pressed in ActionBarSherlock and again show Refresh Button when ViewGroup on refreshed?

Update 1:
I have a answer here which is incomplete. I am placing a bounty on question so that more developers can help build a good answer which can useful to others in future.

How can we show a Indeterminate ProgressBar which looks like the one shown in the image below

Answer 1

It seems like ActionBarSherlock doesn’t provide specific method to animate a refresh MenuItem.

What you can do (by using classic android API) is to use the setActionView(int resId) method and give the id of a layout with a ProgressBar in it.

At the beginning of your refresh action just call :

item.setActionView(R.layout.refresh_menuitem);

And when your refresh action is finished call :

item.setActionView(null);

Here is a sample of what your layout file refresh_menuitem.xml can have :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:addStatesFromChildren="true"
              android:focusable="true"
              android:paddingLeft="4dp"
              android:paddingRight="4dp"
              android:gravity="center"
              style="?attr/actionButtonStyle">
    <ProgressBar
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:focusable="true"
            style="@android:style/Widget.ProgressBar.Small"/>
</LinearLayout>