안드로이드개발#Vertical SeekBar

안드로이드개발#Vertical SeekBar

안드로이드 개발에 있어서 SeekBar가 있어요

수평SeekBar가 있는데, 이를 커스터마이징해서 Vertical SeekBar를 만들수가 있어요

화면을 보세요~

우측에 보이는 것이 안드로이드에 여러가지 widget이 있는데, Vertical SeekBar가 되겠어요

범주를 100으로 둘때 현재 72정도라고 Toast msg로 보여주고 있어요

---------------------------------------------------------------

UI xml)

<LinearLayout 

         android:layout_width="fill_parent" 

     android:layout_height="fill_parent" 

     android:layout_gravity="bottom|right" 

     android:gravity="bottom|right" 

     android:paddingTop="30dip"  

     android:paddingBottom="30dip">

         <com.soft.light5.VerticalSeekBar  

             android:id="@+id/sbCapture" 

             android:layout_width="wrap_content"   

      android:layout_height="fill_parent" 

      android:max="100" 

      android:progress="0" >   

         </com.soft.light5.VerticalSeekBar> 

</LinearLayout>

java source)

VerticalSeekBar.java

package com.soft.light5;

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 {

    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);

    }

    private OnSeekBarChangeListener onChangeListener;

    @Override

    public void setOnSeekBarChangeListener(OnSeekBarChangeListener onChangeListener){

        this.onChangeListener = onChangeListener;

    }

    private int lastProgress = 0;

    @Override

    public boolean onTouchEvent(MotionEvent event) {

        if (!isEnabled()) {

            return false;

        }

        switch (event.getAction()) {

        case MotionEvent.ACTION_DOWN:

            onChangeListener.onStartTrackingTouch(this);

            setPressed(true);

            setSelected(true);

            break;

        case MotionEvent.ACTION_MOVE:

            super.onTouchEvent(event);

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

             

            // Ensure progress stays within boundaries

            if(progress < 0) {progress = 0;}

            if(progress > getMax()) {progress = getMax();}

            setProgress(progress);  // Draw progress

            if(progress != lastProgress) {

                // Only enact listener if the progress has actually changed

                lastProgress = progress;

                onChangeListener.onProgressChanged(this, progress, true);

            }

             

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

            setPressed(true);

            setSelected(true);

            break;

        case MotionEvent.ACTION_UP:

            onChangeListener.onStopTrackingTouch(this);

            setPressed(false);

            setSelected(false);

            break;

        case MotionEvent.ACTION_CANCEL:

            super.onTouchEvent(event);

            setPressed(false);

            setSelected(false);

            break;

        }

        return true;

    }

    public synchronized void setProgressAndThumb(int progress) {

        setProgress(progress);

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

        if(progress != lastProgress) {

            // Only enact listener if the progress has actually changed

            lastProgress = progress;

            onChangeListener.onProgressChanged(this, progress, true);

        }

    }

    public synchronized void setMaximum(int maximum) {

        setMax(maximum);

    }

    public synchronized int getMaximum() {

        return getMax();

    }

}

-------------------------------------------------------------

사용 java)

VerticalSeekBar sbCapture = null;

...

sbCapture = (VerticalSeekBar)this.findViewById(R.id.sbCapture);

...

sbCapture.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

Toast.makeText(getApplicationContext(), 

                    " progress value : " + iLcOnOffCnt, Toast.LENGTH_SHORT).show();

}

@Override

public void onStartTrackingTouch(SeekBar seekBar) {

// TODO Auto-generated method stub

}

@Override 

public void onProgressChanged(SeekBar seekBar, int progress,

boolean fromUser) {

// TODO Auto-generated method stub

// value : progress

iLcOnOffCnt = progress;

}

});

...

sbCapture = null;

...

=====

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