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android: allow specifying an adaptive-icon xml #781

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android: allow specifying an adaptive-icon xml #781

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22 changes: 17 additions & 5 deletions android/buildIcons.nix
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Original file line number Diff line number Diff line change
@@ -1,8 +1,17 @@
{ runCommand, imagemagick }:
{ src }:
{ runCommand, imagemagick, lib }:
{ src ? null # Base raster image for fixed-size icons (must be a path)
, adaptiveIcon ? null
# Path to a XML file containing the adaptive icon specification (SDK
# 26 and up).
}:
let
rasterInput =
if (src == null) && (adaptiveIcon == null)
then abort "Either src or adaptiveIcon must be specified!"
else src;
in
runCommand "android-icons" {
inherit src;
buildCommand = ''
buildCommand = lib.optionalString (src != null) ''
mkdir "$out"

launcherIconSize() {
Expand All @@ -20,8 +29,11 @@ runCommand "android-icons" {
for x in l m tv h xh xxh xxxh ; do
local dir="$out/drawable-''${x}dpi"
mkdir "$dir"
convert -resize "$(launcherIconSize "$x")" -flatten "$src" "$dir/ic_launcher.png"
convert -resize "$(launcherIconSize "$x")" -flatten "${rasterInput}" "$dir/ic_launcher.png"
done
'' + lib.optionalString (adaptiveIcon != null) ''
mkidr -p "$out/mipmap-anydpi-v26/"
cp "${adaptiveIcon}" "$out/mipmap-anydpi-v26/ic_launcher.xml"
'';
nativeBuildInputs = [
imagemagick
Expand Down