[APP] Zipalign binary and script - Optimize installed applications

senab · Dec 4, 2009

Hey everyone,

wesgarner said:
Zip Align reduces the amount of RAM used during processing running for a major speed increase in running the apps: http://developer.android.com/guide/developing/tools/zipalign.html

I had been messing about with a script to pull apks off my phone, zipalign them and then push them back, but then I saw wesgarner's CM build with a binary and script for use on your phone. I don't really want to mess round with flashing a ROM just for that though, so I've ripped them out and uploaded them below. Another reason is I want to run this manually (with GScript) rather than on boot (as it does in wesgarner's ROM).

I take no credit for this, the binary and script were both taken from wesgarner's CM buiild.

To "install" this, just adb push the two files in the zip below onto your phone with:

Code:

adb shell mount -o remount,rw /system
adb push zipalign /system/bin
adb push zipalign_apks /system/sd/zipalign_apks.sh
adb shell chmod 755 /system/bin/zipalign /system/sd/zipalign_apks.sh
adb shell mount -o remount,ro /system

Then anytime you want to run the script just do:

Code:

adb shell sh /system/sd/zipalign_apks.sh

Or in terminal:

Code:

su
sh /system/sd/zipalign_apks.sh

Has been tested on CM 4.2.7.1

LucidREM · Dec 4, 2009

ZipAlign

senab said:
Hey everyone,

I had been messing about with a script to pull apks off my phone, zipalign them and then push them back, but then I saw wesgarner's CM build with a binary and script for use on your phone. I don't really want to mess round with flashing a ROM just for that though, so I've ripped them out and uploaded them below. Another reason is I want to run this manually (with GScript) rather than on boot (as it does in wesgarner's ROM).

I take no credit for this, the binary and script were both taken from wesgarner's CM buiild.

To "install" this, just adb push the two files in the zip below onto your phone with:

Code:

adb shell mount -o remount,rw /system adb push zipalign /system/bin adb push zipalign_apks.sh /system/sd adb shell chmod 755 /system/bin/zipalign /system/sd/zipalign_apks.sh adb shell mount -o remount,ro /system

Then anytime you want to run the script just do:

Code:

adb shell /system/sd/zipalign_apks.sh

Or in terminal:

Code:

su sh /system/sd/zipalign_apks.sh

Has been tested on CM 4.2.7.1

i do not even know what zipalign does .. but i did add this to my script

# lucid -z

so .. what does it do exactly?

Vermithrax · Dec 4, 2009

Sweet... Thanks...

I was surprised that more than half of the Apps I have were already ZipAligned...

senab · Dec 4, 2009

LucidREM said:
i do not even know what zipalign does .. but i did add this to my script

# lucid -z

so .. what does it do exactly?

APKs (as you probably already know) are just zip files. zipalign simply aligns the APK on 4-byte boundaries which Android is more efficient wrt memory access.

You can read more from Jean-Baptiste Queru at http://android-developers.blogspot.com/2009/09/zipalign-easy-optimization.html

senab · Dec 4, 2009

Vermithrax said:
Sweet... Thanks...

I was surprised that more than half of the Apps I have were already ZipAligned...

Since the 1.6 SDK was released, the ADT does this automatically on APK export. Therefore any app which has been updated since ~September (and was developed using the ADT Eclipse plugin) will be zipalign'd. I was more surprised that 12 out of the 43 apps on my phone weren't aligned!

LucidREM · Dec 4, 2009

ZipAlign

senab said:
APKs (as you probably already know) are just zip files. zipalign simply aligns the APK on 4-byte boundaries which Android is more much efficient wrt memory access.

You can read more from Jean-Baptiste Queru at http://android-developers.blogspot.com/2009/09/zipalign-easy-optimization.html

that's awesome .. thanks for the link .. i hadn't read about that

overground · Dec 4, 2009

Thanks much for this!
Here is a simple gscript to install zipalign after a wipe or new build flash.
You must first create directory /sdcard/zipalign and place zipalign from the zip in the OP there. Path to the file should now be /sdcard/zipalign/zipalign.
Place this script in your gscript folder (after removing .txt from the name) and load it in gscript with su permissions.

I also find it easier to run the script in the zip from the OP in Gscript as well. Instead of placing it in /system/sd run this (assumes zipalign_apks.sh is at root of C:\)

Code:

adb remount
adb push C:\zipalign_apks.sh /sdcard/gscript/zipalign_apks.sh

Then just load it into Gsrcipt with su permissions as with the other script.

Easiest of all may just be to use the commands within Lucid's script. But, I'm comfortable with Gscript, and I can make it 2 clicks away.

EDIT: First execution, you may want to run the original way, because guess what? Gscript isn't zipaligned.

But it worked fine just the same.

deadite66 · Dec 4, 2009

worked great thanks.

g1DDriver · Dec 4, 2009

Thanks. I didn't want to flash whole ROM to zipalign apps, so script was very handy.
Actually I've zipaligned only 2 apps, one of them was everybody loved Linda

garz · Dec 5, 2009

so anyone wanna bless me with a terminal code to install the script?

djluis48 · Dec 5, 2009

garz said:
so anyone wanna bless me with a terminal code to install the script?

Read, its on the first post....xD

LucidREM · Dec 5, 2009

ZipAlign

garz said:
so anyone wanna bless me with a terminal code to install the script?

# lucid -z

garz · Dec 5, 2009

yeah so su? then #lucid -z? cause that did nothing for me...

wesgarner · Dec 5, 2009

LucidREM said:
i do not even know what zipalign does .. but i did add this to my script

# lucid -z

so .. what does it do exactly?

I put a quick explanation of my script on my ROM page: here ya go (rough explanation)

Zip Align reduces the amount of RAM used during processing running for a major speed increase in dex-opt and running the apps, along with the RAM hack and a CC (or your userinit) boots speeds incredibly and better usability of apps (boot and system) in Android: http://developer.android.com/guide/d.../zipalign.html
Most developers have not used this yet (CM does ZipAlign his apps), but this does for the system apps provided from the now old Google Apps

BrooklynAvi · Dec 5, 2009

senab said:
Since the 1.6 SDK was released, the ADT does this automatically on APK export. Therefore any app which has been updated since ~September (and was developed using the ADT Eclipse plugin) will be zipalign'd. I was more surprised that 12 out of the 43 apps on my phone weren't aligned!

Agreed. The Market won't let non-zipaligned apps be uploaded.

wesgarner · Dec 5, 2009

AndroidAppCritic said:
Agreed. The Market won't let non-zipaligned apps be uploaded.

it will really, it doesn't detect the diff
Also, SDK4 didn't really include an enforced ZipAlign like SDK5 (eclair) does
Plus I built the ZipAlign from source from eclair - so this script may not update them all perfectly

senab · Dec 5, 2009

garz said:
yeah so su? then #lucid -z? cause that did nothing for me...

Unzip the files to your SD Card, then:

Code:

su
mount -o remount,rw /system
mv /sdcard/zipalign /system/bin
mv /sdcard/zipalign_apks /system/sd/zipalign_apks.sh
chmod 755 /system/bin/zipalign /system/sd/zipalign_apks.sh
mount -o remount,ro /system

MrBurrito · Dec 5, 2009

Post deleted becoz it was redundant

MontAlbert · Dec 5, 2009

can someone make a script for windows or a bat file that can zipalign a batch of apks? I am not that ofay with line commands and when i create a new theme (which i often do), i then have to go and zipalign every single apk i have altered 1 at a time..... i do:

Code:

zipalign -f -v 4 E:\app\theapp.apk E:\app\theapp.apk.out

turboyo · Dec 5, 2009

senab said:
Unzip the files to your SD Card, then:

Code:

su mount -o remount,rw /system cp /sdcard/zipalign /system/bin cp /sdcard/zipalign_apks.sh /system/sd chmod 755 /system/bin/zipalign /system/sd/zipalign_apks.sh mount -o remount,ro /system

This isnt working for me bc of the .sh after zipalign_apks .. do i rename the zipalign_apks to zipalign_apks.sh after unzipping?

edit:that worked

THANKS!

[APP] Zipalign binary and script - Optimize installed applications

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