content: package androidx.appcompat.widget;
  
  import android.content.Context;
  import android.content.res.Resources;
  import android.view.LayoutInflater;
  import android.widget.SpinnerAdapter;
  import androidx.appcompat.view.ContextThemeWrapper;
  
  public interface ThemedSpinnerAdapter extends SpinnerAdapter {
  
      public static final class Helper {
          private final Context mContext;
          private LayoutInflater mDropDownInflater;
          private final LayoutInflater mInflater;
  
          public Helper(Context context) {
              this.mContext = context;
              this.mInflater = LayoutInflater.from(context);
          }
  
          public LayoutInflater getDropDownViewInflater() {
              LayoutInflater layoutInflater = this.mDropDownInflater;
              return layoutInflater != null ? layoutInflater : this.mInflater;
          }
  
          public Resources.Theme getDropDownViewTheme() {
              LayoutInflater layoutInflater = this.mDropDownInflater;
              if (layoutInflater == null) {
                  return null;
              }
              return layoutInflater.getContext().getTheme();
          }
  
          public void setDropDownViewTheme(Resources.Theme theme) {
              if (theme == null) {
                  this.mDropDownInflater = null;
              } else if (theme == this.mContext.getTheme()) {
                  this.mDropDownInflater = this.mInflater;
              } else {
                  this.mDropDownInflater = LayoutInflater.from(new ContextThemeWrapper(this.mContext, theme));
              }
          }
      }
  
      Resources.Theme getDropDownViewTheme();
  
      void setDropDownViewTheme(Resources.Theme theme);
  }
  