Android SearchView does not work

Question

I tried to update all the libraries, but i still got errors. I am able to run the app on the simulator, but when I export the APK and run it on a real android device, the ap

Answer 1

Have you enabled Proguard in your build? If so, you may want to ensure that the appcompat libraries are in the Proguard exclusion list (in proguard.cfg). A brute force approach is to keep all the support library classes with:

   -keep class android.support.v4.app.** { *; }
   -keep interface android.support.v4.app.** { *; }
   -keep class android.support.v7.app.** { *; }
   -keep interface android.support.v7.app.** { *; }

In my case, I had a class that extended the support library's SearchView so I added this to my proguard.cfg:

-keep public class * extends android.support.v7.widget.SearchView {
   public (android.content.Context);
   public (android.content.Context, android.util.AttributeSet);
}

The constructors are specifically mentioned to avoid the error:

java.lang.NoSuchMethodException:  [class android.content.Context]