Android Open Source - lamp Vertical Seek Bar

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The source code is released under:

GNU General Public License

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Java Source Code

package cz.tomsuch.lampicka.util;
//from w ww. j av a2  s  . c  om
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import cz.tomsuch.lampicka.abstracts.CustomSeekBar;

public class VerticalSeekBar extends CustomSeekBar {

  public VerticalSeekBar(Context 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);

  protected synchronized void onMeasure(int widthMeasureSpec,
      int heightMeasureSpec) {
    super.onMeasure(heightMeasureSpec, widthMeasureSpec);
    setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());

  protected void onDraw(Canvas c) {
    c.translate(-getHeight(), 0);


  public synchronized void setProgressAndThumb(int progress) {
    setProgress(getMax() - (getMax() - progress));
    onSizeChanged(getWidth(), getHeight(), 0, 0);

  public boolean onTouchEvent(MotionEvent event) {
    if (!isEnabled()) {
      return false;
    if (getParent() != null) {

    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());
      onSizeChanged(getWidth(), getHeight(), 0, 0);

    case MotionEvent.ACTION_CANCEL:
    return true;


Java Source Code List