How can working with vertical SeekBar in Android

To implement it, create a new class in your project, choosing the right package:








 There, paste the code and save it. Now use it in your XML layout:

<android.widget.VerticalSeekBar
  android:id="@+id/seekBar1"
  android:layout_width="wrap_content"
  android:layout_height="200dp"
  />

Here is a working VerticalSeekBar implementation:

public class VerticalSeekBar extends SeekBar {

private OnSeekBarChangeListener myListener;
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());
}

@Override
public void setOnSeekBarChangeListener(OnSeekBarChangeListener mListener){
    this.myListener = mListener;
}

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:
            if(myListener!=null)
                myListener.onStartTrackingTouch(this);
            break;
        case MotionEvent.ACTION_MOVE:
            setProgress(getMax() - (int) (getMax() * event.getY() / getHeight()));
            onSizeChanged(getWidth(), getHeight(), 0, 0);
            myListener.onProgressChanged(this, getMax() - (int) (getMax() * event.getY() / getHeight()), true);
            break;
        case MotionEvent.ACTION_UP:
            myListener.onStopTrackingTouch(this);
            break;

        case MotionEvent.ACTION_CANCEL:
            break;
    }
    return true;
}
}