content: package allen.town.podcast.view;
  
  import android.content.Context;
  import android.util.AttributeSet;
  import android.view.View;
  import android.widget.FrameLayout;
  
  import androidx.annotation.NonNull;
  import androidx.annotation.Nullable;
  import androidx.core.util.Consumer;
  
  import com.google.android.material.slider.Slider;
  
  import allen.town.podcast.R;
  
  public class PlaybackSpeedSlider extends FrameLayout {
      private Slider seekBar;
      private Consumer<Float> progressChangedListener;
  
      public PlaybackSpeedSlider(@NonNull Context context) {
          super(context);
          setup();
      }
  
      public PlaybackSpeedSlider(@NonNull Context context, @Nullable AttributeSet attrs) {
          super(context, attrs);
          setup();
      }
  
      public PlaybackSpeedSlider(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
          super(context, attrs, defStyleAttr);
          setup();
      }
  
      private void setup() {
          View.inflate(getContext(), R.layout.playback_speed_seek_bar, this);
          seekBar = findViewById(R.id.playback_speed);
          findViewById(R.id.butDecSpeed).setOnClickListener(v -> seekBar.setValue(seekBar.getValue() - 2));
          findViewById(R.id.butIncSpeed).setOnClickListener(v -> seekBar.setValue(seekBar.getValue() + 2));
  
          seekBar.addOnChangeListener(new Slider.OnChangeListener() {
              @Override
              public void onValueChange(@NonNull Slider slider, float value, boolean fromUser) {
                  float playbackSpeed = (value + 10) / 20.0f;
                  if (progressChangedListener != null) {
                      progressChangedListener.accept(playbackSpeed);
                  }
              }
          });
      }
  
      public void updateSpeed(float speedMultiplier) {
          seekBar.setValue(Math.round((20 * speedMultiplier) - 10));
      }
  
      public void setProgressChangedListener(Consumer<Float> progressChangedListener) {
          this.progressChangedListener = progressChangedListener;
      }
  
      public float getCurrentSpeed() {
          return (seekBar.getValue() + 10) / 20.0f;
      }
  
      @Override
      public void setEnabled(boolean enabled) {
          super.setEnabled(enabled);
          seekBar.setEnabled(enabled);
          findViewById(R.id.butDecSpeed).setEnabled(enabled);
          findViewById(R.id.butIncSpeed).setEnabled(enabled);
      }
  }
  