Re: [android-developers] Android Proguard - how to keep onClick handlers only referenced from XML layouts
If I remember correctly, android uses reflection while accessing onClick handles specified in layout file instead of set via code, so if I am now wrong, you will pay for that with performance loss (yes, it's most likely insignificiant for the whole app, but still). I also think that if you want to use proguard to make your app harder to rev-eng, you shall consider dropping android:onClick in faviour of setting handlers in code instead of exluding them from proguard Regards, Marcin Orlowski *Tray Agenda http://bit.ly/trayagenda* - keep you daily schedule handy... *Date In Tray* http://bit.ly/dateintraypro - current date at glance... WebnetMobile on *Facebook http://webnetmobile.com/fb/* and *Twitterhttp://webnetmobile.com/twitter/ * -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Android Proguard - how to keep onClick handlers only referenced from XML layouts
In my Android app I ofter don't create a View's on-click handler in
code, but rely on the ability to specify it in the XML layout file,
like this:
Button
android:onClick=onSearchClicked
./
And then have the method in the Activity like this:
public void onSearchClicked( View v ) {
}
Meaning there is no reference to this method in my own code (but maybe
somewhere in the auto-generated stuff by Android build?).
When running Proguard for a production release it seems to remove this
method and the on-click fails.
What can I add to my proguard config file to avoid this that won't
oblige me to rework all these methods?
An annotation I could add to the method and have proguard take notice
of?
Somehow specify these types of methods referenced from xml?
Can you specify a wildcard for the method name and I can adopt some
convention like onClick*?
I suppose I can add a false reference in the code, but would like to
avoid that if I can as I won't always remember to put it in!
I have looked through the proguard examples for Android and can't see
anything for this particular need.
I know I can keep specific ones with something like:
-keepclasseswithmembers class * {
public void onSearchClicked(android.view.View );
}
but in some Activity I have a lof of these, all with different names,
and a lot across the entire application. Using the above method would
mean any change to my code would require a change to my proguard
configI'm looking for a more generic and robust way.
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