Question

我的目标是禁用标签和滑动到最后一页当用户点击最后一页或尝试滑动到最后一页时，我想要回调，以便我可以显示祝酒..

目前我正在关注此但无法制作

public class CustomSwipeViewPager extends ViewPager {

private boolean mLastPageEnabled = false;
private int mLastPageIndex = 0;

public NoSwipeViewPager(Context context) {
    super(context);
}

public NoSwipeViewPager(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public void setLastPageEnabled(boolean enabled) {
    mLastPageEnabled = enabled;
}

public void setLastPageIndex(int index) {
    mLastPageIndex = index;
}

@Override
public boolean onInterceptTouchEvent(MotionEvent event){

    if(!mLastPageEnabled && getCurrentItem() >= (mLastPageIndex - 1)) {
        // Always return false to disable user swipes
        return false;
    }

    return true;
}

@Override
public boolean onTouchEvent(MotionEvent event) {

    if (!mLastPageEnabled && getCurrentItem() >= (mLastPageIndex - 1)) {
        // Always return false to disable user swipes
        return false;
    }

    return true;
}

}

Answer 1

试试这个。希望这可以按你的意愿运作。

@Override
    public boolean onInterceptTouchEvent(MotionEvent event) {



        if (!mLastPageEnabled && getCurrentItem() > (mLastPageIndex - 1)) {

            switch (event.getAction()) {
                case (MotionEvent.ACTION_DOWN):
                    x1 = event.getX();
                    y1 = event.getY();
                    break;
                case (MotionEvent.ACTION_UP): {
                    x2 = event.getX();
                    y2 = event.getY();
                    dx = x2 - x1;
                    dy = y2 - y1;

                    // Use dx and dy to determine the direction
                    if (Math.abs(dx) > Math.abs(dy)) {
                        if (dx > 0) {
                            //right//previous
                            return super.onInterceptTouchEvent(event);
                        } else {
                            //left//next
                            return false;
                        }
                    }
                    else
                    {
                         return false;
                    }
                }
                break;
            }


        }

        return super.onInterceptTouchEvent(event);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {

        if (!mLastPageEnabled && getCurrentItem() > (mLastPageIndex - 1)) {

            switch (event.getAction()) {
                case (MotionEvent.ACTION_DOWN):
                    x1 = event.getX();
                    y1 = event.getY();
                    break;
                case (MotionEvent.ACTION_UP): {
                    x2 = event.getX();
                    y2 = event.getY();
                    dx = x2 - x1;
                    dy = y2 - y1;

                    // Use dx and dy to determine the direction
                    if (Math.abs(dx) > Math.abs(dy)) {
                        if (dx > 0) {
                            //right//previous
                            return super.onTouchEvent(event);
                        } else {
                            //left//next
                            return false;
                        }
                    }
                    else
                    {
                         return false;
                    }
                }
                break;
            }


        }

        return super.onTouchEvent(event);
    }

Viewpager在滑动和选项卡上禁用最后一页

1 个答案: