ScrollView 嵌套 ViewPager,ViewPager内容不显示问题

解决办法：

1.简单点的就是重写ViewPager

//自定义ScrollView嵌套的ViewPager可显示
public class ViewPagerForScrollView extends ViewPager {
    public ViewPagerForScrollView(Context context) {
        super(context);
    }
    public ViewPagerForScrollView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int height = 0;
        for (int i = 0; i < getChildCount(); i++) {
            View child = getChildAt(i);
            child.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
            int h = child.getMeasuredHeight();
            if (h > height)
                height = h;
        }
        heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
}

但是有个缺点是有时候几个Fragment高度一样了，所以就造成有的底部留白过多

2.更简单点的，总是留给有耐心的人。给你点赞！！

XML布局文件

给ScrollView设置宽高属性

fill_parent强制填充布局

然后是

android:fillViewport="true"允许ScrollView中的组件去充满它

<ScrollView

    android:id="@+id/video_scrollview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:fillViewport="true"