According to android icon design guidelines ( here
http://developer.android.com/guide/practices/ui_guidelines/icon_design.html,
see table #1), developer needs to provide status bar icons of next
sizes:
Status Bar 24 x 24 px (LDPI) 32 x 32 px (MDPI) 48 x 48 px (HDPI)
While my measurements show that status bar always has 25 dp in height
and expects icons of 25x25dp. This translates to these sizes:
Status Bar 19 x 19 px (LDPI) 25 x 25 px (MDPI) 38 x 38 px (HDPI)
Here is how I get those size:
25dp * 0.75 = 18.75 => 19px (LDPI)
25dp * 1 = 25 => 25px (MDPI)
25dp * 1.5 = 37.5 => 38px (HDPI)
I have confirmed calculated sizes on several Android phones and on
emulators.
The question basically is: why guidelines use sizes different from
what is really used by status bar?
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