How to get the ActionBar height?

android, android-actionbar

Solution

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)
}

Problem

I am trying to get the height of the `ActionBar` (using Sherlock) every time an activity is created (specially to handle configuration changes on rotation where the ActionBar height might change). For this I use the method `ActionBar.getHeight()` which works only when the `ActionBar` is shown. When the first activity is created for the first time, I can call `getHeight()` in the `onCreateOptionsMenu` callback. But this method is not called after. So my question is when can I call getHeight() and be assured that it doesn't return 0? Or if it is not possible, how can I set the height of the ActionBar ?

Original source

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