为每个视图扩展新的布局xml - 在PagerAdapter中实例化instantiateItem

Question

所以基本上我想在ViewPager中填充页面,为每个视图位置分别使用XML布局.我现在正在这样做

@Override
    public Object instantiateItem(View container, int position) {

        LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(mContext.LAYOUT_INFLATER_SERVICE);

        if(position == 0){
        view = inflater.inflate(R.layout.main, null);
        ((ViewPager) container).addView(view, 0);
        }
        if(position == 1){
            view = inflater.inflate(R.layout.main_second, null);
            ((ViewPager) container).addView(view, 0);
        }
        if(position == 2){
            view = inflater.inflate(R.layout.main_third, null);
            ((ViewPager) container).addView(view, 0);
        }

        return view;
}

首先正确显示视图,但是当我滑动ViewPager时,将隐藏/销毁布局.为什么是这样？我这样做是错误的吗？请帮助并纠正我.

谢谢.爱.韦斯利

Answer 1

查看此链接,获取有关如何将所有内容放在一起的良好教程.基本上,您必须将新增加的视图添加到ViewPager集合中:

View view = inflater.inflate(resId, null);
((ViewPager) collection).addView(view, 0);