Last active
May 1, 2023 14:26
-
-
Save commonsguy/6757059 to your computer and use it in GitHub Desktop.
Ruby script to convert animated GIF into an Android AnimationDrawable
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/usr/bin/ruby | |
require 'fileutils' | |
require 'RMagick' | |
require 'slop' | |
require 'builder' | |
opts = Slop.new do | |
banner "gif2animdraw [options]\n" | |
on :i, :input=, 'path to animated GIF (or directory of GIFs)', :required => true | |
on :o, :outdir=, 'path to root output directory', :required => true | |
on :d, :density=, 'density name to use for frames', :required=>true | |
on :oneshot, 'if set, animation does not repeat', :required => false, :default=>false | |
help | |
end | |
begin | |
opts.parse | |
rescue | |
puts opts.help | |
exit -1 | |
end | |
if !['ldpi', 'mdpi', 'tvdpi', 'hdpi', 'xhdpi', 'xxhdpi', 'xxxhdpi'].include?(opts[:d]) | |
puts "Invalid density #{opts[:d]}" | |
exit -1 | |
end | |
glob=File.directory?(opts[:i]) ? File.join(opts[:i], '*.gif') : opts[:i] | |
Dir[glob].each do |gif| | |
input=Magick::ImageList.new(gif).coalesce | |
output=File.join(opts[:o], 'drawable') | |
output_density=File.join(opts[:o], 'drawable-'+opts[:d]) | |
basename=File.basename(gif, '.gif').downcase.gsub(/\W/,'_') | |
FileUtils.mkdir_p output | |
FileUtils.mkdir_p output_density | |
Dir.glob(File.join(output_density, basename+'*.png')).each {|f| File.delete(f) } | |
input.write File.join(output_density, basename+'_%d.png') | |
builder = Builder::XmlMarkup.new(:indent=>2) | |
builder.tag!('animation-list', | |
'xmlns:android'=>'http://schemas.android.com/apk/res/android', | |
'android:oneshot'=>opts[:oneshot]) do | |
i=0 | |
input.each do |frame| | |
builder.item('android:drawable'=>"@drawable/#{basename}_#{i}", | |
'android:duration'=>frame.delay*1000/input.ticks_per_second) | |
i+=1 | |
end | |
end | |
open(File.join(output, basename+'.xml'), 'w') do |f| | |
f.puts builder.target! | |
end | |
end |
@frankkienl: I updated the script so -i
accepts a directory or an individual GIF.
And, since comments here do not trigger GitHub notifications (grrrrr...), please use StackOverflow for further questions about this script. Tag your question with commonsware
(in addition to android
or ruby
, whichever is more applicable to your question).
If anyone else is still looking at this (no judgements), make sure you install slop 3, not the rewritten slop 4 which was rewritten and has broken changes.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Is there a way to convert all the gif-files in a folder?
I have 158 folders with about 12 gif each to convert...
https://github.com/frankkienl/BronyLiveWallpaper/tree/master/BronyLiveWallpaper/src/main/assets
Btw, I'm not using a WebView, but this library:
https://code.google.com/p/android-gifview/
Its okay, I guess, bit memory-hungry.
But your solution sounds a lot better ;-)