NestedScrollView嵌套ViewPager出现页面不

模拟b站首页出现NestedScrollView嵌套ViewPager出现页面不显示问题：

结局方案：重写ViewPager的onMeasure方法

/**

* author: wmr

* date: 2016/12/02

* version: 1.0

* description:自适应子View高度的viewPager:ViewPager的onMeasure方法

*/

public classAutoHeightViewPagerextendsViewPager {

publicAutoHeightViewPager(Context context,AttributeSet attrs) {

super(context,attrs);

}

@Override

protected voidonMeasure(intwidthMeasureSpec, intheightMeasureSpec) {

intheight =0;

// 下面遍历所有child的高度

for(inti =0;i < getChildCount();i++) {

View child = getChildAt(i);

child.measure(widthMeasureSpec,

MeasureSpec.makeMeasureSpec(0,MeasureSpec.UNSPECIFIED));

inth = child.getMeasuredHeight();

// 采用最大的view的高度

if(h > height) {

height = h;

}

}

heightMeasureSpec = MeasureSpec.makeMeasureSpec(height,

MeasureSpec.EXACTLY);

super.onMeasure(widthMeasureSpec,heightMeasureSpec);

}

}