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android:lineageos-18.1-trebuchet-custom-font [2022/06/25 15:00]
prppedro 		android:lineageos-18.1-trebuchet-custom-font [2022/06/25 15:36]
prppedro
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 However, the default options (currently Android default, Noto Sans, Rubik and Lato) might not be of your taste. Personally, I wanted to use IBM Plex, so that's what I'm using as example. With some tweaking, I think it can work for any fonts you might want to use.  However, the default options (currently Android default, Noto Sans, Rubik and Lato) might not be of your taste. Personally, I wanted to use IBM Plex, so that's what I'm using as example. With some tweaking, I think it can work for any fonts you might want to use. 
 +
 +Before we start, **make sure you have the tools to work with**. In our particular case, **ADB**, for sure, but also ''build-tools'' of Android SDK. On Debian-based operating systems, you can install them using the following command: ''apt install android-sdk-build-tools android-sdk-platform-tools''. Also, make sure you can **run ADB as root** (''adb root & adb shell''). **The phone's root filesystem must also be writable** (''mount -o remount,rw /''). 
  
 So, the first thing we should do is to copy those fonts to the phone. Again, I don't know about other ROMs, but, in our case, it suffices to ''adb push'' the TTF's (or OTF's) to ''/system/product/fonts.'' Preferably, you will end up with a list like this:  So, the first thing we should do is to copy those fonts to the phone. Again, I don't know about other ROMs, but, in our case, it suffices to ''adb push'' the TTF's (or OTF's) to ''/system/product/fonts.'' Preferably, you will end up with a list like this: 
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 The font is now installed. **But**, unless we deploy what's called an //overlay//, __the font still won't appear__ on **Styles & Wallpapers**. So, there's still a last (and rather dull) step to go.  The font is now installed. **But**, unless we deploy what's called an //overlay//, __the font still won't appear__ on **Styles & Wallpapers**. So, there's still a last (and rather dull) step to go. 
 +
 +LineageOS project is opensource, so we can clone their overlays repository: ''git clone https://github.com/LineageOS/android_packages_overlays_Lineage''. What interests us is, obviously, inside ''fonts'' folder. You can copy any of the ''Font*Overlay'' subfolders to ''src'' (or whatever you want to call it, but ''src'' is more convenient because we're going to run a script which «compiles» that overlay. 
 +
 +Inside ''src'' there are some files and folders. Go through them and change them as per needed. Here's mine, for reference: {{ :android:src-ibmplex.tar.gz |}}. 
 +
 +Now, we must generate the overlay APK file. For that, I modified [[https://github.com/Kolodez2106/HelloWorld-app-compiled-in-bash/blob/main/make.sh|a script]] written by the GitHub user ''Kolodez2106''. As we don't need to compile anything, ''javac'' won't -- God bless! -- cross our paths, but we're still going to need ''jarsign'', so Java must be installed. The shell script goes more or less as follows: 
 +
 +<code>
 +#!/bin/bash
 +
 +rm -v -f -r ./obj
 +rm -v -f -r ./bin
 +rm -v -f -r ./key
 +mkdir ./obj
 +mkdir ./bin
 +mkdir ./key
 +aapt package -v -f -m -S ./src/res/ -M ./src/AndroidManifest.xml -I /usr/lib/android-sdk/platforms/android-23/android.jar # you may need to replace "/usr/lib/android-sdk/platforms/android-23/android.jar" here and in the subsequent commands
 +aapt package -f -M ./src/AndroidManifest.xml -S ./src/res/ -I /usr/lib/android-sdk/platforms/android-23/android.jar -F ./bin/FontIBMPlexMonoOverlay.unsigned.apk ./bin # it is important that the ./bin/ directory does not contain any files except for classes.dex when this command starts
 +keytool -genkeypair -validity 10000 -dname "CN=YOURNAME, OU=YOURNAME, O=YOURNAME, C=YOURCOUNTRY" -keystore ./key/mykey.keystore -storepass mypass -keypass mypass -alias myalias -keyalg RSA
 +jarsigner -keystore ./key/mykey.keystore -storepass mypass -keypass mypass -signedjar ./bin/FontIBMPlexMonoOverlay.signed.apk ./bin/FontIBMPlexMonoOverlay.unsigned.apk myalias
 +zipalign -f 4 ./bin/FontIBMPlexMonoOverlay.signed.apk ./bin/FontIBMPlexMonoOverlay.apk
 +</code>
 +
 +If you're using Windows or any UNIX flavor which simply stores that stuff in a different place I can't help you much, but you can create a Batch or a modified shell script with not much effort, because those are the commands you need. 
 +
 +After running the script, you'll end up with the file ''bin/FontIBMPlexMonoOverlay.apk''. Run ''adb shell'' and create a folder at ''/system/product/overlay'' called something like ''LineageIBMPlexMonoFont'' (I called mine that to follow the standard dictated by the other folder names). Exit the shell and then run ''adb push bin/FontIBMPlexMonoOverlay.apk /system/product/overlay/LineageIBMPlexMonoFont''. 
 +
 +After restarting your phone, you should be able to pick the font at **Styles & Wallpapers**. 
  
 ===== References ===== ===== References =====
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   * https://www.reddit.com/r/LineageOS/comments/r2j0wm/custom_fonts_in_trebuchet_launcher/   * https://www.reddit.com/r/LineageOS/comments/r2j0wm/custom_fonts_in_trebuchet_launcher/
   * https://source.android.com/devices/architecture/rros   * https://source.android.com/devices/architecture/rros
 +  * https://github.com/Kolodez2106/HelloWorld-app-compiled-in-bash/blob/main/make.sh
 +  * https://source.android.com/devices/automotive/hmi/car_ui/fonts
  
android/lineageos-18.1-trebuchet-custom-font.txt · Last modified: 2022/06/25 16:11 by prppedro

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