Android-proguard Introduction
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Proguard is a free Java class file shrinker, Optimizer, Obfuscator, and Preverifier.Proguard is a free Java class file with a shrink (shrinker), optimizer (optimizer), a blur (Obfuscator), and a pre-authenticator (Preverifier). It detects and removes unused classes, fields, methods, and attributes.it can examine and delete unused classes, fields, methods, and properties. It optimizes bytecode and removes unused instructions.it optimizes the binaries and removes unused instructions. It renames the remaining classes, fields, and methods using a short meaningless names.It renames existing classes, fields, and methods that have short, meaningless names. Finally, it preverifies the processed code for Java 6 or higher, or for Java Micro Edition.Finally, it pre-verifies that the code already exists for JAVA6 and later versions, or for Java micro versions.
Android-proguard Introduction