Fixes an Android APK built by PhoneGap Build to correct the problem of xhdpi images not being properly added (https://github.com/phonegap/build/issues/9). Requires apktool and jarsigner to already be installed.

fix_android_apk.py

#!/usr/bin/env python
# fix an Android APK built by PhoneGap Build to correct the problem of 
# xhdpi images not being correctly added (https://github.com/phonegap/build/issues/9)
#
# REQUIRES apktool and jarsigner to already be installed and on the PATH.
# 
# usage: fix_android_apk.py www/config.xml InputFile.apk OutputFile.apk
#

import os,sys,shutil,tempfile,xml.dom.minidom

try:
    (configXml, inputApk, outputApk) = sys.argv[1:]
    assert outputApk.endswith('.apk')
except:
    exit("usage: fix_android_apk.py www/config.xml InputFile.apk OutputFile.apk")

outputSignedApk = outputApk.replace('.apk','-signed.apk')

if os.path.exists(outputApk): exit("error: %s already exists" % (outputApk))
if os.path.exists(outputSignedApk): exit("error: %s already exists" % (outputSignedApk))

xmldoc = xml.dom.minidom.parse(configXml)

xhdpiFilter = lambda x: ('gap:platform' in x.attributes.keys() and x.attributes['gap:platform'].value == 'android' and 'gap:density' in x.attributes.keys() and x.attributes['gap:density'].value == 'xhdpi')

iconfile = filter(xhdpiFilter, xmldoc.getElementsByTagName('icon'))[0].attributes['src'].value
splashfile = filter(xhdpiFilter, xmldoc.getElementsByTagName('gap:splash'))[0].attributes['src'].value

tmpdir = tempfile.mkdtemp()

os.system('apktool decode --force %s %s' % (inputApk, tmpdir))

shutil.copyfile(os.path.join(os.path.dirname(configXml), iconfile),os.path.join(tmpdir, 'res/drawable-xhdpi/icon.png'))
shutil.copyfile(os.path.join(os.path.dirname(configXml), splashfile),os.path.join(tmpdir, 'res/drawable-xhdpi/splash.png'))

os.system('apktool build %s %s' % (tmpdir,outputApk))

os.system('jarsigner -verbose -keystore %s/.android/debug.keystore -storepass android -keypass android -digestalg SHA1 -sigalg MD5withRSA -sigfile CERT -signedjar %s %s androiddebugkey' % (os.path.expanduser('~'),outputSignedApk, outputApk))

print "Built %s and %s" % (outputApk, outputSignedApk)