How to zipalign the apk file in Windows

Question

I have signed and packaged the Xamarin application
and so have created the apk file using Visual Studio.

How can I zipalign this file in Windows?

Answer 1

Make sure you have the Android SDK build-Tools installed then check where your SDK is installed mine was at C:\Program Files(x86)\Android\android-sdk\build-tools\23.0.1\zipalign You will find zipAlign in the android build tools then use it like so:

C:\Program Files(x86)\Android\android-sdk\build-tools\23.0.1\zipalign -v 4 infile.apk outfile.apk

Usage

To align infile.apk and save it as outfile.apk:

zipalign [-f] [-v] <alignment> infile.apk outfile.apk

To confirm the alignment of existing.apk:

zipalign -c -v <alignment> existing.apk

The alignment is an integer that defines the byte-alignment boundaries. This must always be 4 (which provides 32-bit alignment) or else it effectively does nothing.

Flags:

-f : overwrite existing outfile.zip

-v : verbose output

-c : confirm the alignment of the given file

output from windows (extra parameters not in the Docs :O) :

Zip alignment utility
Copyright (C) 2009 The Android Open Source Project

Usage: zipalign [-f] [-p] [-v] [-z] <align> infile.zip outfile.zip
       zipalign -c [-v] <align> infile.zip

<align>: alignment in bytes, e.g. '4' provides 32-bit alignment
-c: check alignment only (does not modify file)
-f: overwrite existing outfile.zip
-p: page align stored shared object files
-v: verbose output
-z: recompress using Zopfli

ZipAlign Docs