Hide "refresh" action bar item while showing indetermidate progress bar in action bar [duplicate] - actionbarsherlock

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>

Answer 2

Here is how you add this kind of indeterminate ProgressBar with a ActionBarSherlock object : (actually it's easier the other one but the progressBar is shown alone and not above a MenuItem)
1 - Put this line in the onCreate() method before the setContentView() call :
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
-> This line specify that you will use the indeterminate ProgressBar function.
2 - Enable the indeterminate ProgressBar by calling :
setSupportProgressBarIndeterminateVisibility(true);
3 - Disable the indeterminate ProgressBar by calling :
setSupportProgressBarIndeterminateVisibility(false);
Remark : Have a look in the sample folder of the ActionBarSherlock folder. I found this code in the following file :
JakeWharton-ActionBarSherlock-9598f2b\samples\demos\src\com\actionbarsherlock\sample\demos\IndeterminateProgress.java

Answer 3

Here is a complete code:
private static final int menuItemIdRefresh = 10; //class constant
private boolean refresh;
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuItem refreshItem = menu.add(0, menuItemIdRefresh, 0,
getString(R.string.action_refresh)).setShowAsActionFlags(
MenuItem.SHOW_AS_ACTION_ALWAYS);
if (isRefreshing) {
refreshItem.setActionView(R.layout.indeterminate_progress);
} else {
refreshItem.setActionView(null);
refreshItem.setIcon(R.drawable.ic_refresh);
}
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case menuItemIdRefresh: {
//the user has pressed the refresh button
if (!isRefreshing) {
isRefreshing = true;
new RefreshMyViewAsyncTask().execute("");
}
}
break;
default:
break;
}
return false;
}
One last note, in order to get the above code working you´ll need also call supportInvalidateOptionsMenu(). You can add that to the RefreshMyViewAsyncTask's onPreExecute() method.
Hope this helps to somebody.