https://github.com/mubeenmajeed/dragable-clendar-event
这是我的公共存储库，用于在时间空间内拖动事件。但在长时间按下时，它能够在系统中拖动事件。我希望执行此操作的代码示例：

@Override
    public void onLongPress(MotionEvent event) {
        Log.d(TAG, "onLongPress: ");
        scrollView.requestDisallowInterceptTouchEvent(true);

        switch (event.getAction() & MotionEvent.ACTION_MASK) {
            case MotionEvent.ACTION_DOWN:
                // Start tracing finger movement
                start.set(event.getX(), event.getY());
                enableDragMode();
                break;
            case MotionEvent.ACTION_UP:
                enableNoneMode(timeBlock);
                // Allow other touch events to steal
                scrollView.requestDisallowInterceptTouchEvent(false);

                // Adjust block position
                if (positionToLabelEntry != null) {
                    setTopMargin(positionToLabelEntry.getKey());
                }
                break;
            case MotionEvent.ACTION_MOVE:
                if (mode == DRAG) {
                    // Set dragging distance
                    int draggingDistance = (int) (event.getY() - start.y);
                    boolean goingDown = draggingDistance > 0 ? true : false;

                    // Define dragging limits
                    int timeTableTopLimitLocation = lineNumberToScreenPosition.get(0);
                    int timeTableBottomLimitLocation = lineNumberToScreenPosition.get(lineNumberToScreenPosition.size() - 1);
                    int timeBlockBottomLimitLocation = timeTableBottomLimitLocation - params.height;

                    // Remove if you only want to allow events after red line
                    upperLimitPosition = timeTableTopLimitLocation;

                    int potentialTopMargin = timeBlockParentParams.topMargin + draggingDistance;

                    // Readjust top margin to prevent going over limits
                    if (potentialTopMargin < upperLimitPosition) {
                        potentialTopMargin = upperLimitPosition;
                    }
                    if (potentialTopMargin > timeBlockBottomLimitLocation) {
                        potentialTopMargin = timeBlockBottomLimitLocation;
                    }

                    // Make it scroll when finger is close to window top/down
                    DisplayMetrics metrics = new DisplayMetrics();
                    getWindowManager().getDefaultDisplay().getMetrics(metrics);

                    Rect rectangle = new Rect();
                    getWindow().getDecorView().getWindowVisibleDisplayFrame(rectangle);
                    int statusBarHeight = rectangle.top;

                    if ((event.getRawY() <= (statusBarHeight + event.getY() + getResources().getDimensionPixelSize(R.dimen.pad_10dp) + headerLayout.getLayoutParams().height) && !goingDown)
                            || (event.getRawY() >= metrics.heightPixels - (timeBlock.getHeight() - event.getY()) && goingDown)
                            || (timeBlockParentParams.topMargin + params.height >= lineNumberToScreenPosition.get(lineNumberToScreenPosition.size() - 1) && goingDown)) {
                        scrollView.smoothScrollBy(0, draggingDistance);
                    }

                    // Set top margin to position choose by finger
                    setTopMargin(potentialTopMargin);

                    // Get closest time block and show minutes
                    getClosestTimeBlockAndShowMinuteLabel();

                    // Adjust time block position to position that makes sense
                    setTimeBlockPosition(false);
                }
                break;
        }
    }

这个功能将很好地工作时，这个代码块是在触摸，但不长按工作。请帮忙。。