How to debug apk signed for release?

Question

I have an apk which I\'ve signed and uploaded to Android Market, and installed on my phone. I would like to debug this release apk (by means of Eclipse) whilst it is running

Answer 1

I know this is old question, but future references. In Android Studio with Gradle:

buildTypes {
    release {
        debuggable true
        runProguard true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
    }
}

The line debuggable true was the trick for me.

Update:

Since gradle 1.0 it's minifyEnabled instead of runProguard. Look at here