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platform_bootable_recovery/tools/recovery_l10n
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Bill Yi 14eb2086c0 Import translations. DO NOT MERGE 
Auto-generated-cl: translation import

Bug: 36832302
Change-Id: I1bfbb1791a4d7925491d7574c08994f6e7ff640d
2017-04-01 15:49:37 -07:00
..
res Import translations. DO NOT MERGE 2017-04-01 15:49:37 -07:00
src/com/android/recovery_l10n Update background text images in recovery 2017-01-07 00:32:40 +00:00
Android.mk Move recovery_l10n here from development/tools. 2016-03-26 08:45:51 -07:00
AndroidManifest.xml Move recovery_l10n here from development/tools. 2016-03-26 08:45:51 -07:00
README.md Restore the max width for recovery background texts 2017-01-22 18:46:04 -08:00

README.md

Steps to regenerate background text images under res-*dpi/images/

  1. Build the recovery_l10n app:

    cd bootable/recovery && mma -j32

  2. Install the app on the device (or emulator) with the intended dpi.

    • For example, we can use Nexus 5 to generate the text images under res-xxhdpi.
    • We can set up the maximum width of the final png image in res/layout/main.xml Currently, the image width is 1200px for xxxhdpi, 900px for xxhdpi and 480px for xhdpi/hdpi/mdpi.
    • When using the emulator, make sure the NDK version matches the current repository. Otherwise, the app may not work properly.

    adb install $PATH_TO_APP

  3. Run the app, select the string to translate and press the 'go' button.

  4. After the app goes through the strings for all locales, pull the output png file from the device.

    adb root && adb pull /data/data/com.android.recovery_l10n/files/text-out.png

  5. Compress the output file put it under the corresponding directory.

    • "pngcrush -c 0 ..." converts "text-out.png" into a 1-channel image, which is accepted by Recovery. This also compresses the image file by ~60%.
    • zopflipng could further compress the png files by ~10%, more details in https://github.com/google/zopfli/blob/master/README.zopflipng
    • If you're using other png compression tools, make sure the final text image works by running graphic tests under the recovery mode.

    pngcrush -c 0 text-out.png $OUTPUT_PNG