StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POEnable Proguard for only two packages in large Android application
text
Body
copied!<p><strong>Background</strong></p> <p>I am developing an Android application that relies on multiple external libraries (8 added as library project dependencies, 14 added as jar dependencies).</p> <p>Some of these jar libraries are closed source an have already been obfuscated and some of them rely pretty heavily on reflection.</p> <p>The application uses ZXing for QR code scanning/recognition and, without Proguard optimization, ZXing is quite slow (at least on Android). </p> <p>At first, I only needed to optimize the <code>com.google.zxing.**</code> package using Proguard. In order to do that I've added the following Proguard options in my config file (the best I could figure out from <a href="https://stackoverflow.com/questions/11896618/how-to-obfuscate-only-few-class-or-a-single-package">this question</a>):</p> <pre><code>-keep class !com.google.zxing.** { *; } -keep interface !com.google.zxing.** { *; } -keep enum !com.google.zxing.** { *; } -dontwarn !com.google.zxing.** </code></pre> <p>I exported my application and it works like a charm.</p> <p><strong>Problem</strong></p> <p>Now, I want to use Proguard to obfuscate the application's classes.</p> <p>I've tried changing the above to:</p> <pre><code>-keep class !(com.google.zxing.**, com.example.app.**) { *; } -keep interface !(com.google.zxing.**, com.example.app.**) { *; } -keep enum !(com.google.zxing.**, com.example.app.**) { *; } -dontwarn !(com.google.zxing.**, com.example.app.**) -keep com.example.app.activities.** { *; } -keep com.example.app.receivers.** { *; } -keep com.example.app.services.** { *; } -keep com.example.app.views.** { *; } </code></pre> <p>The problem is that Proguard does not accept <code>!(package.one.**, second.package.**) { *; }</code> as a valid option for a <code>-keep</code> rule.</p> <p>Another approach would be to put a <code>-keep</code> rule for every package in my application. </p> <p>This approach has two big disadvantages:</p> <ol> <li><p>adding or swapping libraries would require changing the Proguard config file</p></li> <li><p>it makes updating libraries a pain, as some of them are obfuscated and, when recompiled by the library's developer, will change package names.</p></li> </ol> <p>Obviously, I would like to avoid this approach as much as possible (because of the high number of external libraries).</p> <p><strong>Question</strong></p> <p>Is it possible to use Proguard to obfuscate just two packages, without defining a <code>-keep</code> rule for each of the other packages in my app? If so, how can I do this?</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload