https://source.android.com/ 
public interface android.media.MediaRecorder$OnInfoListener
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.media.MediaRecorder$OnInfoListener
  super_class: java.lang.Object
{
  public abstract void onInfo(android.media.MediaRecorder, int, int);
    descriptor: (Landroid/media/MediaRecorder;II)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      mr     
      what   
      extra  
}
SourceFile: "MediaRecorder.java"
NestHost: android.media.MediaRecorder
InnerClasses:
  public abstract OnInfoListener = android.media.MediaRecorder$OnInfoListener of android.media.MediaRecorder