Prevent Proguard from removing empty constructor of fragment

Question

You know, all subclasses of Fragment must include a public empty constructor but when using proguard these constructors will be removed. I have specified below commands but empty constructor still be removed. Can anyone help me to keep empty constructor of Fragment? Thanks you. ``` -keepclassmembers public class * extends android.support.v4.app.Fragment { public (***); #public (); //already tried this } -keepclassmembers public class * extends com.xxx.MyFragment { public (***); #public (); //already tried this } ```

Accepted Answer

This should work :

```
-keepclassmembers public class * extends android.support.v4.app.Fragment { 
   public <init>(...);
```

I believe even this should be enough :

```
-keep public class * extends android.support.v4.app.Fragment
```

as keeping the class will oblige proguard to keep the default constructor.

Prevent Proguard from removing empty constructor of fragment

Solution

Problem