Is there any way to programatically retrieve the font family

Question

Is there any way to programatically retrieve the font family applied to text I m building a text debug menu in my app and it seems like for each text style I can programatically access all attributes about the style weight size line height but not the name of the Font i e Roboto or my other custom font Ideas

Chris Sinco [G] · Answer

cc < Sean McQuillan G >

Zoltan Demant · Answer

Doesnt `MaterialTheme typography body2 fontFamily` etc `toString` provide a pretty good maybe not perfect though name for them Digging through the code it seems to use the font names unfortunately I cant test it myself right now homer disappear

Colton Idle · Answer

Hm Tried that and I just got a resource Id I believe

Sean McQuillan [G] · Answer

Uh not in first class API

Sean McQuillan [G] · Answer

Let me see if there s another way

Chris Sinco [G] · Answer

I ve personally wanted this myself for Theme preview reasons

Colton Idle · Answer

lmao thats basically exactly what im doing

Colton Idle · Answer

trying to build a thing where if you click any of my text in the app you will get a message of what params that font has font family size etc lol

Sean McQuillan [G] · Answer

No

Sean McQuillan [G] · Answer

in the generic case

Sean McQuillan [G] · Answer

I thought you d be able to reflect into Typeface to check the names in the system font map but you won t be able to do a instance or equality check on the results due to instantiation in create String <https cs android com android platform superproject + master frameworks base graphics java android graphics Typeface java l=154 q=Typeface>

Sean McQuillan [G] · Answer

that ll work sometimes though but sometimes fail

Sean McQuillan [G] · Answer

If you control the Compose Font then there s an exit you can define a subclass of AndroidFont that exposes the name <https cs android com androidx platform frameworks support + androidx main compose ui ui text src androidMain kotlin androidx compose ui text font AndroidFont kt q=AndroidFont|https cs android com androidx platform frameworks support + androidx main compose in androidx compose ui text font AndroidFont kt q=AndroidFont>

Sean McQuillan [G] · Answer

Basically just copy the existing Font declarations and add what you want

Sean McQuillan [G] · Answer

As for answering From a font family and a text style what font is chosen that s not public API it s done in FontMatcher which returns a font fallback list <https cs android com androidx platform frameworks support + androidx main compose ui ui text src commonMain kotlin androidx compose ui text font FontMatcher kt l=28 q=FontMatcher|https cs android com androidx platform frameworks support + androidx main compose droidx compose ui text font FontMatcher kt l=28 q=FontMatcher>

Sean McQuillan [G] · Answer

Which then goes here <https cs android com androidx platform frameworks support + androidx main compose ui ui text src commonMain kotlin androidx compose ui text font FontListFontFamilyTypefaceAdapter kt l=119 q=FontListFontFamilyTy|https cs android com androidx platform frameworks support + androidx main compose ListFontFamilyTypefaceAdapter kt l=119 q=FontListFontFamilyTy>

Sean McQuillan [G] · Answer

The actual what font is being displayed right now is not public API or any API slightly smiling face

Colton Idle · Answer

Interesting I m gonna put a pin in this for now but Chris if you ever take a stab at this let me know got some deadlines to hit by end of next week so im not gonna spend too many cycles on this Appreciate it sean nice to know i didn t miss something basic

Sean McQuillan [G] · Answer

It s not what you re looking for but we did put the params into Font toStrings

Sean McQuillan [G] · Answer

Sean McQuillan [G] · Answer

np Good luck sorry the answer got complicated smile