手指在屏幕上滑动的灵敏度

Question

当用户在屏幕上向指定方向移动手指时，我正在使用GestureDetector.OnGestureListener来调用方法。我的问题- 只需稍微移动一下并调用该方法，我希望用户在屏幕上多移动手指一点。

public class SwipeListener extends GestureDetector.SimpleOnGestureListener {
public static final int MIN_SWIPE_DISTANCE = 40; 

@Override
public boolean onDown(MotionEvent e) {
return true;
}

@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
float xDiff = e1.getX() - e2.getX();
float yDiff = e1.getY() - e2.getY();
return resolveSwipe(xDiff, yDiff);
}

private boolean resolveSwipe(float xDist, float yDist) {
float yDistAbs = Math.abs(yDist);
float xDistAbs = Math.abs(xDist);
SwipeDirection swipeDirection;

if (yDistAbs > xDistAbs) {
if (yDistAbs < MIN_SWIPE_DISTANCE) {return false;}
swipeDirection = (yDist > 0) ? SwipeDirection.DOWN: SwipeDirection.UP;
} else {
if (xDistAbs < MIN_SWIPE_DISTANCE) {return false;}
swipeDirection = (xDist > 0) ? SwipeDirection.RIGHT: SwipeDirection.LEFT;
}
onSwipeEvent(swipeDirection);
return true;
}
private void onSwipeEvent(SwipeDirection swipeDirection) {
if (swipeDirection == SwipeDirection.UP) {
return;
}
if (swipeDirection == SwipeDirection.DOWN) {
return;
}
if (swipeDirection == SwipeDirection.LEFT) {
finger1()
return;
}
if (swipeDirection == SwipeDirection.RIGHT) {
finger1();
return;
}
}
public enum SwipeDirection {
UP, DOWN, LEFT, RIGHT
}

可能吗？我应该在此处更改或添加什么？

Answer 1

您需要计算您不想在滑动时执行任何操作的 x 轴或 y 轴级别。

Answer 2

您必须声明滑动的最小距离private static final int SWIPE_MIN_DISTANCE = 160因为它可能会对您有所帮助 点击这里实施它