I found an answer by myself with help of http://android-developers.blogspot.in/2011/04/customizing-action-bar.html However, this does not completely solve my problem. It adds a divider for Title, and also one for the home Icon. There are also left and right separators. That too is adjustable.
I added android:selectableItemBackground to my theme.
<item name="android:selectableItemBackground">@drawable/action_bar_item_selector</item>
action_bar_item_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:drawable="@drawable/actionbar_compat_separator"></item>
<item android:left="1dp" android:drawable="@drawable/actionbar_compat_item"></item>
</layer-list>
actionbar_compat_separator - is my seperator drawable
and actionbar_compat_item is my selector for action bar item.
EDITED
I have found a better solution to my problem. It works well.
<item name="android:actionButtonStyle">@style/ActionButton</item> to my Theme
<style name="ActionButton" parent="android:style/Widget.Holo.Light.ActionButton">
<item name="android:background">@drawable/action_bar_item_selector</item>
</style>
I found a working solution how to set indeterminate progress bar with proper size and padding. My solution doesn't use workaround with setActionView(). It is solution for built-in progress bar functionality, supported by native action bar (ActionBarSherlock). Progress bar is enabled/disabled via setProgressBarIndeterminateVisibility(boolean) method. I tested it on Android 2, 3, 4 and ldpi, mdpi, xhdpi.
AndroidManifest.xml:
<application
...
android:theme="@style/Theme.Example">
/res/values/styles.xml:
<resources xmlns:android="http://schemas.android.com/apk/res/android">
...
<style name="Theme.Example" parent="Theme.Sherlock">
<item name="actionBarStyle">@style/Example.ActionBar</item>
<item name="android:actionBarStyle">@style/Example.ActionBar</item>
</style>
<style name="Example.ActionBar" parent="Widget.Sherlock.ActionBar">
<item name="indeterminateProgressStyle">@style/Example.ActionBar.IndeterminateProgressBar</item>
<item name="android:indeterminateProgressStyle">@style/Example.ActionBar.IndeterminateProgressBar</item>
</style>
<style name="Example.ActionBar.IndeterminateProgressBar" parent="@android:style/Widget.ProgressBar.Large.Inverse">
<item name="android:indeterminateDrawable">@drawable/layer_list_ab_indeterminate_progress_bar</item>
<item name="android:minWidth">@dimen/ab_indeterminate_progress_bar_size</item>
<item name="android:maxWidth">@dimen/ab_indeterminate_progress_bar_size</item>
<item name="android:minHeight">@dimen/ab_indeterminate_progress_bar_size</item>
<item name="android:maxHeight">@dimen/ab_indeterminate_progress_bar_size</item>
</style>
</resources>
/res/drawable/layer_list_ab_indeterminate_progress_bar.xml:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<!--
/res/drawable-mdpi/ab_indeterminate_progress_bar asset is taken from
/sdk/platforms/android-18/data/res/mdpi/spinner_white_48.png
and its content (optical square) is resized to ~0.6 (must be even number)
/res/drawable-mdpi-v14/ab_indeterminate_progress_bar asset is taken from
/sdk/platforms/android-18/data/res/mdpi/spinner_48_outer_holo.png
and its content (optical square) is resized to 0.75
-->
<rotate
android:drawable="@drawable/ab_indeterminate_progress_bar"
android:interpolator="@android:anim/linear_interpolator"
android:pivotX="50%"
android:pivotY="50%"
android:fromDegrees="0"
android:toDegrees="360" />
</item>
</layer-list>
/res/values/dimens.xml:
<dimen name="ab_indeterminate_progress_bar_size">48dp</dimen>
Finally I created progress bar assets. I used these two assets from Android SDK:
- /sdk/platforms/android-18/data/res/mdpi/spinner_white_48.png for Honeycomb and older
- /sdk/platforms/android-18/data/res/mdpi/spinner_48_outer_holo.png for ICS and newer
To get proper size and padding, we need to resize the assets. I resized spinner_white_48.png to ~0.6. For mdpi, it was 28px. It must be even number to be centrally symmetric. I resized only the content, not the whole icon. So icon in mdpi has still 48px, but its content (optical square) is smaller (28px). You can easily resize the content this way: first change "image size" to 28px X 28px, then change "canvas size" back to 48px X 48px. I resized spinner_48_outer_holo.png to 0.75. You can download the assets below.
Why do I use different assets for Honeycomb- and ICS+? Because if I'm using only Holo assets, the animation is little bit snatchy on some devices with Honeycomb-.
Tip: you can add another item with some animation to layer_list_ab_indeterminate_progress_bar.xml. For example standard Holo progress bar uses 2 animations with opposite direction and different degrees range. See progress_medium_holo.xml in SDK.
/res/drawable-mdpi/ab_indeterminate_progress_bar.png:
/res/drawable-mdpi-v14/ab_indeterminate_progress_bar.png (hardly visible on this page):
/res/drawable-hdpi/ab_indeterminate_progress_bar.png:
/res/drawable-hdpi-v14/ab_indeterminate_progress_bar.png (hardly visible on this page):
/res/drawable-xhdpi/ab_indeterminate_progress_bar.png:
/res/drawable-xhdpi-v14/ab_indeterminate_progress_bar.png (hardly visible on this page):
Best Answer
NOTE: The functionality below is now deprecated in the Support Library.
You need to call
in your
onCreate()
before setting the activity's layout:e.g.
And then call
on your Activity whenever you want to show the progress spinner.