QAM*_*MAR 9

您应该使用官方Font Awesome Library,

https://github.com/bperin/FontAwesomeAndroid

FontAwesome Library中有DrawableAwesome,你需要使用它来构造它

DrawableAwesome drable = new DrawableAwesome.DrawableAwesomeBuilder(Context context, int icon).build();
Run Code Online (Sandbox Code Playgroud)

并在您的FAB中设置. int icon是String资源的id你也可以自定义Shadow,Bold等渲染选项,只需检查DrawableAwesome即可

另有图书馆可用,如果有人想检查. https://github.com/JoanZapata/android-iconify