Height of screen without status bar, actionBar and tabs

Question

I have a ListView that I want each row to fill a third of the available screen. I have the status bar visible, and then an actionBar with slidingTabs beneath. I'm doing the current calculation like this:

height = context.getResources().getDisplayMetrics().heightPixels;
if (context.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true))
    {
        actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data,context.getResources().getDisplayMetrics());
        Log.d("actionBarHeigth", actionBarHeight.toString());
    }

And setting the views height like this:

holder.imageView.getLayoutParams().height = (height - actionBarHeight*2) / 3;

But the rows of the list are slightly too big, and i guess it's the status bar causing it. How can I add the height of it to my calculations?

Can you post the XML file for your class please in full? – apmartin1991 Apr 17 '15 at 10:12 — apmartin1991, Apr 17 '15 at 10:12

score 13 · Accepted Answer · answered Apr 17 '15 at 10:38

Based on @rasmeta 's answer I made this code and it does the trick. My rows are now exactly a third of the available screen. Here is how to get the height of the status bar:

int resource = context.getResources().getIdentifier("status_bar_height", "dimen", "android");
    if (resource > 0) {
        statusBarHeight = context.getResources().getDimensionPixelSize(resource);
    }

And the calculation of the height of each row goes like this:

holder.imageView.getLayoutParams().height = (screenHeight - statusBarHeight - actionBarHeight*2) / 3;
// actionBarHeight * 2 because the tabs have the same height as the actionBar.

score 5 · Answer 2 · edited May 23 '17 at 11:54

5

You can use this code:

public int getStatusBarHeight() { 
      int result = 0;
      int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
      if (resourceId > 0) {
          result = getResources().getDimensionPixelSize(resourceId);
      } 
      return result;
}

as described here: https://stackoverflow.com/a/3410200/1763138

Please try using this solution and tell us if it worked. ;)

edited May 23 '17 at 11:54

Community

1
1

answered Apr 17 '15 at 10:19

rasmeta

445
2
12

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While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. – mmackh Apr 17 '15 at 10:51
Thank you for a constructive comment - you are right. I already edited the answer for future visitors. – rasmeta Apr 17 '15 at 10:56

score 2 · Answer 3 · answered Jun 21 '17 at 14:43

The easiest way is this:

int height = findViewById(R.id.rootView).getHeight();

rootView is the master root layout :

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rootView"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
      ...
</LinearLayout>

score 0 · Answer 4 · answered Dec 21 '20 at 21:51

Here some extensions that can helps you

fun Activity.heightScreen(): Int {
    return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
        windowManager.currentWindowMetrics.bounds.height()
    } else {
        val displayMetrics = DisplayMetrics()
        windowManager.defaultDisplay.getMetrics(displayMetrics)
        return displayMetrics.heightPixels
    }
}

/***
 * Gets the real ]Height of the display without subtracting any window decor or
 * applying any compatibility scale factors.
 * <p>
 * The size is adjusted based on the current rotation of the display.
 * @param view - your view
 */
fun Fragment.realHeightScreen(view: View = requireView()): Int {
    val point = Point()
    view.display.getRealSize(point)
    return point.y
}

/***
 *Gets the real Width of the display without subtracting any window decor or
 * applying any compatibility scale factors.
 * <p>
 * The size is adjusted based on the current rotation of the display.
 * @param view - your view
 */
fun Fragment.realWidthScreen(view: View = requireView()): Int {
    val point = Point()
    view.display.getRealSize(point)
    return point.x
}


fun getSoftNavigationBarSize(resources: Resources = Resources.getSystem()): Int {
    var result = 0
    val resourceId: Int = resources.getIdentifier("navigation_bar_height", "dimen", "android")
    if (resourceId > 0) {
        result = resources.getDimensionPixelSize(resourceId)
    }
    return result
}

Height of screen without status bar, actionBar and tabs

4 Answers4

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