What is the size of ActionBar in pixels?

Question

I need to know the exact size of ActionBar in pixels so to apply correct background image.

Cory Petosky · Accepted Answer · 2015-01-29 22:26:41Z

615

To retrieve the height of the ActionBar in XML, just use

?android:attr/actionBarSize

or if you're an ActionBarSherlock or AppCompat user, use this

?attr/actionBarSize

If you need this value at runtime, use this

final TypedArray styledAttributes = getContext().getTheme().obtainStyledAttributes( new int[] { android.R.attr.actionBarSize }); mActionBarSize = (int) styledAttributes.getDimension(0, 0); styledAttributes.recycle();

If you need to understand where this is defined:

The attribute name itself is defined in the platform's /res/values/attrs.xml
The platform's themes.xml picks this attribute and assigns a value to it.
The value assigned in step 2 depends on different device sizes, which are defined in various dimens.xml files in the platform, ie. core/res/res/values-sw600dp/dimens.xml

edited Jan 29, 2015 at 22:26

Cory Petosky

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answered Aug 23, 2011 at 20:22

AZ13

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9 Comments

rekire Over a year ago

Great answer. I know the way to dig this informations, but to search this answer was much faster +1. Your answer is also a great hint how to search such things.

Alex Semeniuk Over a year ago

Thank you. I was trying to use @dimen/abc_action_bar_default_height directly (ActionBarComapt) and it worked (on mdpi device). But trying to get this value on Samsung Galaxy SIII returned me wrong value. That is because values-xlarge (somehow) is more preferred than values-land when in landscape mode. Referring to the attribute instead works like a charm.

Drew Over a year ago

@AZ13 I would like to add that android.R.attr.actionBarSize will resolve to 0 size on pre-3.0 devices. So when using ActionBarCompat one would stick to android.support.v7.appcompat.R.attr.actionBarSize instead.

Muhammad Over a year ago

The guy asked it in pixels. I suppose actionBarSize returns the dp value. I got the value 48dp. That means converting it to pixels gives me 96 pixels for xhdpi.

Nathaniel Jobs Over a year ago

"android.R.attr.actionBarSize" is not working in android version 2.3, but "R.attr.actionBarSize" is working android all version. just use "R.attr.actionBarSize" instead of "android.R.attr.actionBarSize" and etc.

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Jake Wharton · Accepted Answer · 2011-11-24 07:50:53Z

64

From the de-compiled sources of Android 3.2's framework-res.apk, res/values/styles.xml contains:

<style name="Theme.Holo"> <!-- ... --> <item name="actionBarSize">56.0dip</item> <!-- ... --> </style>

3.0 and 3.1 seem to be the same (at least from AOSP)...

edited Nov 24, 2011 at 7:50

answered Aug 24, 2011 at 20:05

Jake Wharton

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3 Comments

Manfred Moser Over a year ago

What about the different height of the action bar in landscape?

Jake Wharton Over a year ago

on 4.0+: default is 48dp, landscape is 40dp, sw600dp is 56dp

Vikram Bodicherla Over a year ago

Which is why you should use the android:attr value and not a hardcoded value!

David Boho · Accepted Answer · 2012-10-23 09:04:25Z

To get the actual height of the Actionbar, you have to resolve the attribute actionBarSize at runtime.

TypedValue tv = new TypedValue(); context.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true); int actionBarHeight = getResources().getDimensionPixelSize(tv.resourceId);

Vikram Bodicherla · Accepted Answer · 2011-09-26 03:42:05Z

36

One of the Honeycomb samples refers to ?android:attr/actionBarSize

answered Sep 26, 2011 at 3:42

Vikram Bodicherla

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3 Comments

Pointer Null Over a year ago

Yes, explained here: developer.android.com/guide/topics/ui/…

Adam Over a year ago

This is the answer if your min sdk is >=11, if you're min is <11, then most likely you're using ABS, then this is the solution: @dimen/abs__action_bar_default_height

Jake Wharton Over a year ago

ABS has ?attr/actionBarSize (note the lack of android namespace) which works on all API levels.

Manfred Moser · Accepted Answer · 2012-01-27 21:14:35Z

I needed to do replicate these heights properly in a pre-ICS compatibility app and dug into the framework core source. Both answers above are sort of correct.

It basically boils down to using qualifiers. The height is defined by the dimension "action_bar_default_height"

It is defined to 48dip for default. But for -land it is 40dip and for sw600dp it is 56dip.

RevanthKrishnaKumar V. · Accepted Answer · 2015-09-15 12:09:50Z

If you're using the compatibility ActionBar from the recent v7 appcompat support package, you can get the height using

@dimen/abc_action_bar_default_height

Documentation

stkent · Accepted Answer · 2016-10-23 00:48:15Z

With the new v7 support library (21.0.0) the name in R.dimen has changed to @dimen/abc_action_bar_default_height_material.

When upgrading from a previous version of the support lib you should therefore use that value as the actionbar's height

Perfect! This sure beats ?attr/actionBarSize if one is looking to match a regular ActionBar.

JesperB · Accepted Answer · 2013-03-20 11:06:03Z

9

If you are using ActionBarSherlock, you can get the height with

@dimen/abs__action_bar_default_height

answered Mar 20, 2013 at 11:06

JesperB

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3 Comments

Jake Wharton Over a year ago

Don't use abs__-prefixed resources directly.

JesperB Over a year ago

@JakeWharton please tell us how to do it correctly instead, then.

Codeversed Over a year ago

Create your own dimension so you are not dependent on abs_.

aaronsnoswell · Accepted Answer · 2012-06-26 04:05:02Z

@AZ13's answer is good, but as per the Android design guidelines, the ActionBar should be at least 48dp high.

Reza Mohammadi · Accepted Answer · 2021-08-26 14:39:13Z

Accepted answer in Kotlin :

val Context.actionBarSize get() = theme.obtainStyledAttributes(intArrayOf(android.R.attr.actionBarSize)) .let { attrs -> attrs.getDimension(0, 0F).toInt().also { attrs.recycle() } }

Usage :

val size = actionBarSize // Inside Activity val size = requireContext().actionBarSize // Inside Fragment val size = anyView.context.actionBarSize // Inside RecyclerView ViewHolder

Md. Enamul Haque · Accepted Answer · 2020-01-22 04:06:47Z

public int getActionBarHeight() { int actionBarHeight = 0; TypedValue tv = new TypedValue(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) actionBarHeight = TypedValue.complexToDimensionPixelSize( tv.data, getResources().getDisplayMetrics()); } else { actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, getResources().getDisplayMetrics()); } return actionBarHeight; }

Community · Accepted Answer · 2017-05-23 11:47:24Z

0

The Class Summary is usually a good place to start. I think the getHeight() method should suffice.

EDIT:

If you need the width, it should be the width of the screen (right?) and that can be gathered like this.

edited May 23, 2017 at 11:47

CommunityBot

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answered Aug 23, 2011 at 18:35

Matt

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3 Comments

Eugene Over a year ago

Strange - getHeight() results in zero.

tos Over a year ago

in my development, I noticed that it returns zero in onResume(). Hovever calling getActionBar().getHeight() when you actually need it returns a positive >0 value.

Display name Over a year ago

@tos the spec for the getHeight() says that it returns the current width for the ActionBar, which is probably 0 when the view is created

Muhammad · Accepted Answer · 2014-10-16 19:08:40Z

On my Galaxy S4 having > 441dpi > 1080 x 1920 > Getting Actionbar height with getResources().getDimensionPixelSize I got 144 pixels.

Using formula px = dp x (dpi/160), I was using 441dpi, whereas my device lies
in the category 480dpi. so putting that confirms the result.

Min2 · Accepted Answer · 2016-01-11 06:04:07Z

I did in this way for myself, this helper method should come in handy for someone:

private static final int[] RES_IDS_ACTION_BAR_SIZE = {R.attr.actionBarSize}; /** * Calculates the Action Bar height in pixels. */ public static int calculateActionBarSize(Context context) { if (context == null) { return 0; } Resources.Theme curTheme = context.getTheme(); if (curTheme == null) { return 0; } TypedArray att = curTheme.obtainStyledAttributes(RES_IDS_ACTION_BAR_SIZE); if (att == null) { return 0; } float size = att.getDimension(0, 0); att.recycle(); return (int) size; }

6rchid · Accepted Answer · 2023-08-29 18:21:58Z

Source: appcompact-1.6.1/res/values

<item name="actionBarSize">@dimen/abc_action_bar_default_height_material</item> // values.xml <dimen name="abc_action_bar_default_height_material">56dp</dimen> //values-land.xml <dimen name="abc_action_bar_default_height_material">48dp</dimen> //values-sw600dp-v13.xml <dimen name="abc_action_bar_default_height_material">64dp</dimen>

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