content: package me.lancer.airfree.view;
  
  import android.content.Context;
  import android.graphics.Canvas;
  import android.util.AttributeSet;
  import android.util.Log;
  import android.view.MotionEvent;
  import android.widget.SeekBar;
  
  public class VerticalSeekBar extends SeekBar {
  
      public VerticalSeekBar(Context context) {
          super(context);
      }
  
      public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) {
          super(context, attrs, defStyle);
      }
  
      public VerticalSeekBar(Context context, AttributeSet attrs) {
          super(context, attrs);
      }
  
      protected void onSizeChanged(int w, int h, int oldw, int oldh) {
          super.onSizeChanged(h, w, oldh, oldw);
      }
  
      @Override
      protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
          super.onMeasure(heightMeasureSpec, widthMeasureSpec);
          setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
      }
  
      protected void onDraw(Canvas c) {
          c.rotate(-90);
          c.translate(-getHeight(),0);
  
          super.onDraw(c);
      }
  
      @Override
      public boolean onTouchEvent(MotionEvent event) {
          if (!isEnabled()) {
              return false;
          }
  
          switch (event.getAction()) {
              case MotionEvent.ACTION_DOWN:
              case MotionEvent.ACTION_MOVE:
              case MotionEvent.ACTION_UP:
              	int i=0;
              	i=getMax() - (int) (getMax() * event.getY() / getHeight());
                  setProgress(i);
                  Log.i("Progress",getProgress()+"");
                  onSizeChanged(getWidth(), getHeight(), 0, 0);
                  break;
  
              case MotionEvent.ACTION_CANCEL:
                  break;
          }
          return true;
      }
  
  
  }