Source link: https://github.com/mattsilber/font-utils

font-utils

The goal of this library is to allow your app to support multiple FontFamilies (e.g. lato, roboto, etc.) with their own styles (e.g. normal, bold, italic) in an easily-configurable way.

Installation

repositories {

  jcenter() 
}
  dependencies {

  compile('com.guardanis:font-utils:1.0.2') 
}

Usage

First, make sure your fonts are located in your assets folder (in a /fonts/ subdirectory to be organized). Let's assume you have a roboto normal/bold font called robo.ttf and robo_bold.ttf, respectively. Now you need to override the R.array.fu__font_family_resources string-array resource to include your fonts:

<string-array name="fu__font_family_resources">
  <item>roboto--normal=fonts/robo.ttf,bold=fonts/robo_bold.ttf</item> </string-array>

The format here is:

<item>FONT_FAMILY_NAME--STYLE_1=FONT1_PATH,STYLE_2=FONT2_PATH</item>

With the supported styles being

NORMAL
BOLD
ITALICS
BOLD_ITALICS

Values in the resources are not case-sensitive, and their comparing integers are static in the Typeface class (e.g. Typeface.BOLD or Typeface.ITALICS).

Now, we need to ensure we have a default FontFamily correctly set by overring R.string.fu__default_font_family:

<string name="fu__default_font_family">roboto</string>

Next, we have 3 choices for how to use this font. We can either

Use the already-overridden classes for you

<com.guardanis.fontutils.TextView

xmlns:app="http://schemas.android.com/apk/res-auto"
  app:textFontFamily="roboto"
  android:textStyle="bold" />

These convenience helper classes include

com.guardanis.fontutils.TextView
com.guardanis.fontutils.Button
com.guardanis.fontutils.EditText

Check them out if you want to implement them for other types of TextViews.

Use the FontUtils attribute in your own custom classes so they support your fonts by default

Call the following from your custom TextView (or TextView subclass)'s constructor.

FontUtils.getInstance(getContext())

  .load(this, attrs, defStyle);

Manually call one of the FontUntils' helper methods to set the font programmatically

TextView view = (TextView) findViewById(R.id.some_id);
 FontUtils.getInstance(getContext())

  .setTypeface(view, fontFamily, style);

ToDos and Notes

A NORMAL font is required for a typeface to be loaded. If the FontFamily is loaded without a normal font, it will throw a RuntimeException letting you know what went wrong.
Trying to load any non-normal font style that doesn't exist will default to the normal style.

Source link: https://github.com/mattsilber/font-utils

Resources