https://source.android.com/ 
public interface android.location.GpsStatus$Listener
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.location.GpsStatus$Listener
  super_class: java.lang.Object
{
  public abstract void onGpsStatusChanged(int);
    descriptor: (I)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      event  
}
SourceFile: "GpsStatus.java"
NestHost: android.location.GpsStatus
InnerClasses:
  public abstract Listener = android.location.GpsStatus$Listener of android.location.GpsStatus
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()