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AndResGuard
is a tooling for reducing your apk size, it works like the ProGuard
for Java source code, but only aim at the resource files. It changes res/drawable/wechat
to r/d/a
, and renames the resource file wechat.png
to a.png
. Finally, it repackages the apk with 7zip, which can reduce the package size obviously.
AndResGuard
is fast, and it does NOT need the source codes. Input an Android apk, then we can get a 'ResGuard' apk in a few seconds.
Some uses of AndResGuard
are:
-
Obfuscate android resources. It contains all the resource type(such as drawable、layout、string...). It can prevent your apk from being reversed by
Apktool
. -
Shrinking the apk size. It can reduce the
resources.arsc
and the package size obviously. -
Repackage with
7zip
. It supports repackage apk with7zip
, and we can specify the compression method for each file.
AndResGuard
is a command-line tool, it supports Windows, Linux and Mac. We suggest you to use 7zip in Linux or Mac platform for a higher compression ratio.
Note: Signature schemaV2 will make 7zip compressing invalid. If you really care about your APK size, please disable v2Signing in your signingConfigs
This has been released on Bintray
apply plugin: 'AndResGuard'
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.tencent.mm:AndResGuard-gradle-plugin:1.2.1'
}
}
andResGuard {
// mappingFile = file("./resource_mapping.txt")
mappingFile = null
// It will be invalid when you sign apk with schemaV2
use7zip = true
useSign = true
// it will keep the origin path of your resources when it's true
keepRoot = false
whiteList = [
// your icon
"R.drawable.icon",
// for fabric
"R.string.com.crashlytics.*",
// for umeng update
"R.string.umeng*",
"R.string.UM*",
"R.string.tb_*",
"R.layout.umeng*",
"R.layout.tb_*",
"R.drawable.umeng*",
"R.drawable.tb_*",
"R.anim.umeng*",
"R.color.umeng*",
"R.color.tb_*",
"R.style.*UM*",
"R.style.umeng*",
"R.id.umeng*",
// umeng share for sina
"R.drawable.sina*",
// for google-services.json
"R.string.google_app_id",
"R.string.gcm_defaultSenderId",
"R.string.default_web_client_id",
"R.string.ga_trackingId",
"R.string.firebase_database_url",
"R.string.google_api_key",
"R.string.google_crash_reporting_api_key"
]
compressFilePattern = [
"*.png",
"*.jpg",
"*.jpeg",
"*.gif",
"resources.arsc"
]
sevenzip {
artifact = 'com.tencent.mm:SevenZip:1.2.1'
//path = "/usr/local/bin/7za"
}
}
If you are using Android Studio
, you can find the generate task option in andresguard
group.
Or alternatively, you run ./gradlew resguard[BuildType | Flavor]
in your terminal. The format of task name is as same as assemble
.
The sevenzip can be set by path
or artifact
. Mutiple assignments are allowed, but the winner is always path
.
The outputted apk will be stored in {App}/build/output/apk/AndResGuard_{apk_name}/{apk_name}_signed_7zip_aligned.apk
.
Apktool Connor Tumbleson
v2sig @jonyChina162