To enable ProGuard in your project, edit the `project.properties` file to define the `proguard.config` property as described in that file.

Add any project-specific ProGuard rules here. By default, the flags in this file are appended to the flags specified in `${sdk.dir}/tools/proguard/proguard-android.txt`. You can edit the include path and order by changing the ProGuard include property in `project.properties`.

For more details, see: http://developer.android.com/guide/developing/tools/proguard.html

If your project uses WebView with JavaScript, uncomment the following code and specify the fully qualified class name of the JavaScript interface class:

```java

#-keepclassmembers class fqcn.of.javascript.interface.for.webview {

# public *;

#}

```