<arg value="-keep class com.google.zxing.client.android.*Activity"/>
<arg value="-keep class com.google.zxing.client.android.ViewfinderView { public * ; }"/>
<arg value="-keep class com.google.zxing.client.android.book.SearchBookContents* { public * ; }"/>
<arg value="-keep class com.google.zxing.client.android.*Activity"/>
<arg value="-keep class com.google.zxing.client.android.ViewfinderView { public * ; }"/>
<arg value="-keep class com.google.zxing.client.android.book.SearchBookContents* { public * ; }"/>