What is the size of ActionBar in pixels?
AndroidAndroid ActionbarAndroid Problem Overview
I need to know the exact size of ActionBar in pixels so to apply correct background image.
Android Solutions
Solution 1 - Android
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
Solution 2 - Android
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)...
Solution 3 - Android
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);
Solution 4 - Android
One of the Honeycomb samples refers to ?android:attr/actionBarSize
Solution 5 - Android
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.
Solution 6 - Android
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
Solution 7 - Android
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
Solution 8 - Android
If you are using ActionBarSherlock, you can get the height with
@dimen/abs__action_bar_default_height
Solution 9 - Android
@AZ13's answer is good, but as per the Android design guidelines, the ActionBar should be at least 48dp high.
Solution 10 - Android
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;
}
Solution 11 - Android
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
Solution 12 - Android
The http://developer.android.com/reference/android/app/ActionBar.html">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 https://stackoverflow.com/questions/1016896/android-how-to-get-screen-dimensions">like this.
Solution 13 - Android
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.
Solution 14 - Android
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;
}