How to get the ActionBar height?

Solution 1:

While @birdy's answer is an option if you want to explicitly control the ActionBar size, there is a way to pull it up without locking the size that I found in support documentation. It's a little awkward but it's worked for me. You'll need a context, this example would be valid in an Activity.

// Calculate ActionBar height
TypedValue tv = new TypedValue();
if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true))
{
    int actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data,getResources().getDisplayMetrics());
}

Kotlin:

val tv = TypedValue()
if (requireActivity().theme.resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
    val actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, resources.displayMetrics)
}

Solution 2:

In XML, you should use this attribute:

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

Solution 3:

Ok I was googling around and get to this post several times so I think it'll be good to be described not only for Sherlock but for appcompat also:

Action Bar height using appCompat

Pretty similiar to @Anthony description you could find it with following code(I've just changed resource id):

TypedValue tv = new TypedValue();

if (getActivity().getTheme().resolveAttribute(R.attr.actionBarSize, tv, true))
{
    int actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data,getResources().getDisplayMetrics());
}

Pre Sandwitch Problem

I needed action bar height because on pre ICE_CREAM_SANDWITCH devices my view was overlaping action bar. I tried setting android:layout_marginTop="?android:attr/actionBarSize", android:layout_marginTop="?attr/actionBarSize", setting overlap off to view/actionbar and even fixed actionbar height with custom theme but nothing worked. That's how it looked:

Unfortunately I found out that with method described above I get only half of the height(I assume that options bar is not taken in place) so to completely fix the isue I need to double action bar height and everything seems ok:

If someone knows better solution(than doubling actionBarHeight) I'll be glad to let me know as I come from iOS development and I found most of Android view's stuff pretty confusing :)

Regards,

hris.to

Solution 4:

@Anthony answer works for devices that support ActionBar and for those devices which support only Sherlock Action Bar following method must be used

    TypedValue tv = new TypedValue();
    if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true))
        actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data,getResources().getDisplayMetrics());

    if(actionBarHeight ==0 && getTheme().resolveAttribute(com.actionbarsherlock.R.attr.actionBarSize, tv, true)){
            actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data,getResources().getDisplayMetrics());
    }

   //OR as stated by @Marina.Eariel
   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 if(getTheme().resolveAttribute(com.actionbarsherlock.R.attr.actionBarSize, tv, true){
        actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data,getResources().getDisplayMetrics());
   }