I try to make a ExpandableListView where the group headers are drawn inverse. There is开发者_开发百科 no problem with changing the text color, size etc. via XML. I even found out how to use the system defaults like
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
style="@android:style/TextAppearance.Medium.Inverse"
/>
But for the background color?! I don't understand why these styles don't include background color information?!
Of course I could use a direct color, but I look for good default background attributes or styles. Like "style/Background.For.TextAppearance.Medium.Inverse" ;-)
What would be a good solution? So that for the dark themed devices I get white/gray, and for the white themed I get black?
Or should I simply use R.color.background_light?
Greetings, Joerg
PS: First question here ;-) Thanx to all the people answering here the last months and years: You great people made it much more easier for me to find a re-entrance in programming after 12 years break ;-)
As you observe, the styles with "TextAppearance" in their name only affect the foreground text attributes of the view. They are appropriate for the android:textAppearance
attribute. The styles with "Widget" in their names define all the UI properties and will work in a style
attribute, but Android doesn't define a "Widget.TextView.Inverse" style.
When I wanted to display an console-like log as an inverse text view, I used the following XML:
<TextView
android:textAppearance="@style/TextAppearance.AppCompat.Small.Inverse"
android:background="?android:colorForeground"
... />
It uses the theme's foreground color as the background for the view. With a dark theme it displays dark text on white, and in a light theme it displays light text on black.
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