Question

我正在这样检测Qt应用程序上的触摸手势：

void CameraController::handleTouch(QTouchEvent *event)
{

    /*
     * Just 2 fingers on touch screen
     */
    if (event->touchPoints().length() == 2) {
        QTouchEvent::TouchPoint point1 = event->touchPoints().at(0);
        QTouchEvent::TouchPoint point2 = event->touchPoints().at(1);

        /*
         * Both fingers are "moving"
         */
        if (point1.state() == Qt::TouchPointMoved &&
                point2.state() == Qt::TouchPointMoved) {

            qDebug() << __func__ << "Gesture: 2-fingers!";
            handleGesture2fingers(point1, point2);

            }

        }
        /*
         * Only 1 finger on touch screen
         */
    } else if (event->touchPoints().length() == 1) {
        QTouchEvent::TouchPoint point = event->touchPoints().at(0);

        /*
         * The finger is moving
         */
        switch (point.state()) {
        case Qt::TouchPointMoved:
            qDebug() << __func__ << "Gesture: single finger!";
            handleGestureSingleFinger(point);
            break;
        default:
            break;
        }
        /*
         * Three fingers on touch screen
         */
    } else if (event->touchPoints().length() == 3) {
        QTouchEvent::TouchPoint point1 = event->touchPoints().at(0);
        QTouchEvent::TouchPoint point2 = event->touchPoints().at(1);
        QTouchEvent::TouchPoint point3 = event->touchPoints().at(2);

        /*
         * All 3 fingers are moving
         */
        if (point1.state() == Qt::TouchPointMoved &&
                point2.state() == Qt::TouchPointMoved &&
                point3.state() == Qt::TouchPointMoved) {
            qDebug() << __func__ << "Gesture: 3-fingers!";
            handleGesture3fingers(point1, point2, point3);
        }
    }

}

令我惊讶的是，正如我的日志显示的那样，我的手势彼此干扰，2-finger手势与3-finger手势干扰：

handleTouch Gesture: 2-fingers!
handleTouch Gesture: 2-fingers!
handleTouch Gesture: 3-fingers!
handleTouch Gesture: 3-fingers!
handleTouch Gesture: 3-fingers!
handleTouch Gesture: 3-fingers!
handleTouch Gesture: 2-fingers!
handleTouch Gesture: 2-fingers!

还有single-finger个手势干扰了2-finger手势：

handleTouch Gesture: 2-fingers!
handleTouch Gesture: 2-fingers!
handleTouch Gesture: 2-fingers!
handleTouch Gesture: single finger!
handleTouch Gesture: single finger!
handleTouch Gesture: 2-fingers!
handleTouch Gesture: single finger!
handleTouch Gesture: 2-fingers!
handleTouch Gesture: single finger!
handleTouch Gesture: 2-fingers!
handleTouch Gesture: 2-fingers!
handleTouch Gesture: single finger!
handleTouch Gesture: 2-fingers!

干扰会对用户体验产生负面影响。我不知道如何避免这些手势干扰。

更新

我没有更改代码，但是今天我发现应用程序运行良好，用户体验也很好！也许我昨天使用的触摸屏设备不可靠：）

触摸手势相互干扰：糟糕的用户体验

更新

0 个答案: