如何将java tableswitch转换为switch-case

Question

几个月前，我编写了一个基本上捕获了签名的Android应用程序。几天前，我的笔记本电脑崩溃，我丢失了项目的代码。但是，我有用来反编译源代码的apk文件。但是，反编译的源代码对我来说有点难以消化。所以我开始在反编译代码的帮助下重新编码它。但是我碰到了一堵砖墙试图找出这个tableswitch，它对应于我实际代码中的switch语句。 tableswitch是

motionevent.getActionMasked();
            JVM INSTR tableswitch 0 2: default 104
        //                       0 286
        //                       1 344
        //                       2 344;
               goto _L1 _L2 _L3 _L3
_L1:
            boolean flag;
            paint.setStrokeWidth(f6);
            Canvas canvas = bgCanvas;
            Path path1 = bgPath;
            Paint paint1 = paint;
            canvas.drawPath(path1, paint1);
            bgPath.reset();
            Path path2 = bgPath;
            float f7 = lastTouchX;
            float f8 = lastTouchY;
            path2.moveTo(f7, f8);
            int i = (int)(dirtyRect.left - 5F);
            int j = (int)(dirtyRect.top - 5F);
            int k = (int)(dirtyRect.right + 5F);
            int l = (int)(dirtyRect.bottom + 5F);
            signature signature1 = this;
            int i1 = i;
            int j1 = j;
            int k1 = k;
            int l1 = l;
            signature1.invalidate(i1, j1, k1, l1);
            lastTouchX = f;
            lastTouchY = f1;
            lastStroke = f6;
            lastPressure = f4;
            flag = true;
_L4:
            return flag;
_L2:
            CustomPath custompath = path;
            float f9 = f3;
            custompath.moveTo(f, f1, f4, f9);
            bgPath.moveTo(f, f1);
            lastStroke = f6;
            lastTouchX = f;
            lastTouchY = f1;
            lastPressure = f4;
            flag = true;
            if (true) goto _L4; else goto _L3
_L3:
            resetDirtyRect(f, f1);
            int i2 = motionevent.getHistorySize();
            int j2 = 0;
            do
            {
label0:
                {
                    if (j2 < i2)
                    {
                        break label0;
                    }
                    path.lineTo(f, f1, f4, f6);
                    if ((double)Math.abs(lastStroke - f6) >= 0.10000000000000001D)
                    {
                        Paint paint2 = paint;
                        float f10 = lastStroke;
                        paint2.setStrokeWidth(f10);
                        Canvas canvas1 = bgCanvas;
                        Path path3 = bgPath;
                        Paint paint3 = paint;
                        canvas1.drawPath(path3, paint3);
                        bgPath.reset();
                        Path path4 = bgPath;
                        float f11 = lastTouchX;
                        float f12 = lastTouchY;
                        path4.moveTo(f11, f12);
                    }
                    bgPath.lineTo(f, f1);
                }
                if (true)
                {
                    continue;
                }
                float f13 = motionevent.getHistoricalX(j2);
                float f14 = motionevent.getHistoricalY(j2);
                float f15 = (float)Math.round(motionevent.getHistoricalPressure(j2) * 100F) / 100F;
                float f16 = f15 * 10F;
                float f17 = Math.max(1F, f16);
                MotionEvent motionevent2 = motionevent;
                byte byte1 = 25;
                float f18 = motionevent2.getHistoricalAxisValue(byte1, j2);
                path.lineTo(f13, f14, f15, f18);
                if ((double)Math.abs(lastStroke - f17) >= 0.10000000000000001D)
                {
                    Paint paint4 = paint;
                    float f19 = lastStroke;
                    paint4.setStrokeWidth(f19);
                    Canvas canvas2 = bgCanvas;
                    Path path5 = bgPath;
                    Paint paint5 = paint;
                    canvas2.drawPath(path5, paint5);
                    bgPath.reset();
                    Path path6 = bgPath;
                    float f20 = lastTouchX;
                    float f21 = lastTouchY;
                    path6.moveTo(f20, f21);
                }
                bgPath.lineTo(f13, f14);
                lastTouchX = f13;
                lastTouchY = f14;
                lastStroke = f17;
                j2++;
            } while (true);
            if (true) goto _L1; else goto _L5
_L5:

在我的实际代码中，switch case就是这样的

switch (event.getActionMasked()) {
    case MotionEvent.ACTION_DOWN:
    // codes here
    break;
    case MotionEvent.ACTION_MOVE:
    // codes here
    break;
    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL:
    // codes here
    break;
    default:
    break;
}

问题是我无法弄清楚哪个Label对应哪种情况。任何人都可以对此有所了解吗？