Android Open Source - DoomPlay Vertical Seek Bar

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Back to project page DoomPlay.

License

The source code is released under:

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUC...

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Java Source Code

package com.perm.DoomPlay;
/* www  .ja v a 2 s . c  o m*/

import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.SeekBar;

public class VerticalSeekBar extends SeekBar {

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


    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:
                if(myListener!=null)
                    myListener.onStartTrackingTouch(this);
                break;
            case MotionEvent.ACTION_MOVE:

                int progress = getMax() - (int) (getMax() * event.getY() / getHeight());

                if(progress > 100)
                    progress = 100;
                else if(progress < 0)
                    progress = 0;

                setProgress(progress);
                onSizeChanged(getWidth(), getHeight(), 0, 0);
                myListener.onProgressChanged(this, progress, true);
                break;
            case MotionEvent.ACTION_UP:
                myListener.onStopTrackingTouch(this);
                break;

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

}

Java Source Code List