Drawing view, allows to draw multicolor lines with finger

DrawPanel.java

package com.test.app.widgets;

import java.util.ArrayList;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;

public class DrawPanel extends View {


    private Paint paint;
    private Path path;
    private ColoredPath coloredPath;
    private ArrayList<ColoredPath> coloredPaths;
    private int lastColor;

    public DrawPanel(Context context, AttributeSet attrs) {
        super(context, attrs);

        lastColor = Color.BLACK;

        paint = createPaint();
        coloredPaths = new ArrayList<ColoredPath>();
        coloredPath = new ColoredPath(new Path(), paint);
        coloredPaths.add(coloredPath);
    }

    @Override
    protected void onDraw(Canvas canvas) {

        for (ColoredPath p : coloredPaths) {
            canvas.drawPath(p.path, p.paint);
        }

    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        float eventX = event.getX();
        float eventY = event.getY();

        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                coloredPath.path.moveTo(eventX, eventY);
                return true;
            case MotionEvent.ACTION_MOVE:
                coloredPath.path.lineTo(eventX, eventY);
                break;
            case MotionEvent.ACTION_UP:
                path = new Path();
                coloredPath = new ColoredPath(path, createPaint());
                coloredPaths.add(coloredPath);
                break;
            default:
                return false;
        }

        // Schedules a repaint.
        invalidate();
        return true;
    }

    public void setPaintColor(int color) {
        coloredPath.paint.setColor(color);
        lastColor = color;
    }

    public void clear() {
        coloredPaths.clear();
        invalidate();
        path = new Path();
        coloredPath = new ColoredPath(path, createPaint());
        coloredPaths.add(coloredPath);
    }

    private Paint createPaint() {

        Paint temp = new Paint();
        temp.setAntiAlias(true);
        temp.setStyle(Paint.Style.STROKE);
        temp.setStrokeJoin(Paint.Join.ROUND);

        temp.setStrokeWidth(6f);
        temp.setColor(lastColor);

        return temp;

    }

}


class ColoredPath {

    Paint paint;
    Path path;

    public ColoredPath(Path path, Paint paint) {
        this.path = path;
        this.paint = paint;
    }

}