Android navigation bar size in xml

Question

Is there any way to get the size of navigation bar in android in xml file similar to this?

 android:paddingTop="?android:attr/actionBarSize"

where actionBarSize is navigation bar size?

you mean "`ActionBar`" by "nagivation bar"? If you need to get the `ActionBar`'s height, refer to this question http://stackoverflow.com/questions/12301510/how-to-get-the-actionbar-height — Droidman, Sep 01 '14 at 10:33
No, I mean navigation bar (the one which is diplayed on devices without hardware buttons). — fragon, Sep 01 '14 at 10:58

score 30 · Accepted Answer · answered Nov 05 '14 at 12:42

30

After looking in android source it looks like there is dimens for navigation bar height :

@android:dimen/navigation_bar_height

There are other dimens linked to nav bar, examples from android values/dimens.xml :

<!-- Height of the bottom navigation / system bar. -->
<dimen name="navigation_bar_height">48dp</dimen>
<!-- Height of the bottom navigation bar in portrait; often the same as @dimen/navigation_bar_height -->
<dimen name="navigation_bar_height_landscape">48dp</dimen>
<!-- Width of the navigation bar when it is placed vertically on the screen -->
<dimen name="navigation_bar_width">42dp</dimen>

answered Nov 05 '14 at 12:42

Gaëtan Maisse

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`Error:(167, 39) Resource is not public. (at 'layout_marginBottom' with value '@android:dimen/navigation_bar_height').` – Ion Aalbers Jun 15 '15 at 12:44
@IonAalbers On which version of Android are you working ? – Gaëtan Maisse Jun 15 '15 at 13:02
Same problem. Any solution? – Prior99 Jun 20 '15 at 11:42
Have the same issue. Can't customize a layout for non-navbar devices. – Konstantin Konopko Aug 16 '15 at 20:05
1

I had the same problem as Ion Aalbers. Using Max's solution worked for me, so I moved my padding and margins to `onCreate`. – Tilded Jul 21 '17 at 05:59
Well, I just wrote the private property in my project's dimens. Is there any problem? Seems like it's 48dp for all devices anyway. – Hugo Passos Mar 02 '18 at 20:32
Hi Gaëtan, I get this error when I add this code to my xml: "@android:dimen/navigation_bar_height" Error: "resource android:dimen/navigation_bar_height is private" Could you please help mp? – Salih Apr 25 '19 at 11:06

score 6 · Answer 2 · edited May 23 '17 at 12:34

6

Try this code:

Resources resources = context.getResources();
int resourceId = resources.getIdentifier("navigation_bar_height", "dimen", "android");
if (resourceId > 0) {
    return resources.getDimensionPixelSize(resourceId);
}
return 0;

edited May 23 '17 at 12:34

Community

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answered Sep 28 '16 at 11:22

Max

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OP specifically requested in XML. – Allan Veloso Mar 25 '19 at 18:18

score 1 · Answer 3 · answered Mar 07 '20 at 07:20

As suggested in many of similar questions, for example this, this, this, and this, simply getting navigation bar height may not be enough. We need to consider whether 1. navigation bar exists, 2. is it on the bottom, or right or left, 3. is app open in multi-window mode.

There is a simple one line solution

android:fitsSystemWindows="true"

or programatically

findViewById(R.id.your_root_view).setFitsSystemWindows(true);

you may also get root view by

findViewById(android.R.id.content).getRootView();
or
getWindow().getDecorView().findViewById(android.R.id.content)

For more details on getting root-view refer - https://stackoverflow.com/a/4488149/9640177

Android navigation bar size in xml

3 Answers3