Is there a way proxy final methods in Android classes with Afterburner?

[jophde]

I am trying desperately to setup a Proxy for Android classes such as TextView in my library. Specifically, I need to know when TextView#setText(int resId) is called in the client app. Unfortunately, this method is inexplicably final. TextView itself is not a final class.

After some initial investigation it does not seem that what I need is possible even with bytecode weaving. I am pretty sure I can't replace the dex of classes already part of the parent class loader. Or am I wrong? Please let me be wrong :).

Is there some other pattern that requires slightly more implementation by users of my library that I can achieve with afterburner? I am just hoping there is a better way to than having the users of my library call explicit static methods everywhere they set text via resource id.

[stephanenicolas]

There might be other ways to achieve it, maybe an internal non final method of TextView, but I don't know them.

Otherwise, no, I don't think you can modify a class like TextView as it's part of Android Framework, these classes are embedded in each device and you don't have access to them. Maybe using a custom class loader could do, but I am not sure.

Otherwise, using Javassist, you can for sure detect each invocation of setText on a textview, but this is out of the scope of afterburner.

Stéphane

2015-01-19 15:00 GMT-05:00 Joshua Deffibaugh [email protected]:

I am trying desperately to setup a Proxy for Android classes such as TextView in my library. Specifically, I need to know when TextView#setText(int resId) is called in the client app. Unfortunately, this method is inexplicably final. TextView itself is not a final class.

After some initial investigation it does not seem that what I need is possible even with bytecode weaving. I am pretty sure I can't replace the dex of classes already part of the parent class loader. Or am I wrong? Please let me be wrong :).

Is there some other pattern that requires slightly more implementation by users of my library that I can achieve with afterburner? I am just hoping there is a better way to than having the users of my library call explicit static methods everywhere they set text via resource id.

— Reply to this email directly or view it on GitHub https://github.com/stephanenicolas/afterburner/issues/5.

[jophde]

"Otherwise, using Javassist, you can for sure detect each invocation of setText on a textview, but this is out of the scope of afterburner."

What do you mean by this? Does Javassist handle final methods?