content: package allen.town.podcast.ui.common;
  
  import android.content.Context;
  import android.content.res.TypedArray;
  import androidx.appcompat.widget.AppCompatImageView;
  import android.util.AttributeSet;
  
  /**
   * From http://stackoverflow.com/a/19449488/6839
   */
  public class SquareImageView extends AppCompatImageView {
      public static final int DIRECTION_WIDTH = 0;
      public static final int DIRECTION_HEIGHT = 1;
      public static final int DIRECTION_MINIMUM = 2;
  
      private int direction = DIRECTION_WIDTH;
  
      public SquareImageView(Context context) {
          super(context);
      }
  
      public SquareImageView(Context context, AttributeSet attrs) {
          super(context, attrs);
          loadAttrs(context, attrs);
      }
  
      public SquareImageView(Context context, AttributeSet attrs, int defStyle) {
          super(context, attrs, defStyle);
          loadAttrs(context, attrs);
      }
  
      private void loadAttrs(Context context, AttributeSet attrs) {
          TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SquareImageView);
          direction = a.getInt(R.styleable.SquareImageView_direction, DIRECTION_WIDTH);
          a.recycle();
      }
  
      public void setDirection(int direction) {
          this.direction = direction;
          requestLayout();
      }
  
      @Override
      protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
          super.onMeasure(widthMeasureSpec, heightMeasureSpec);
  
          switch (direction) {
              case DIRECTION_MINIMUM:
                  int size = Math.min(getMeasuredWidth(), getMeasuredHeight());
                  setMeasuredDimension(size, size);
                  break;
              case DIRECTION_HEIGHT:
                  setMeasuredDimension(getMeasuredHeight(), getMeasuredHeight());
                  break;
              default:
                  setMeasuredDimension(getMeasuredWidth(), getMeasuredWidth());
                  break;
          }
      }
  
  }