[置顶] 滚动嵌套viewpager，里面的fragment高度问题（已解决）

public class MyViewPager extends ViewPager{
private int current;
private int height = 0;
/**
* 保存position与对于的View
*/
private HashMap<Integer, View> mChildrenViews = new LinkedHashMap<Integer, View>();

private boolean scrollble = true;

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

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

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (mChildrenViews.size() > current) {
View child = mChildrenViews.get(current);
child.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
height = child.getMeasuredHeight();
}

heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);

super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

public void resetHeight(int current) {
this.current = current;
if (mChildrenViews.size() > current) {
FrameLayout.LayoutParams layoutParams= (FrameLayout.LayoutParams) getLayoutParams();
//       LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) getLayoutParams();
if (layoutParams == null) {
layoutParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, height);
} else {
layoutParams.height = height;
}
setLayoutParams(layoutParams);
}
}
/**
* 保存position与对于的View
*/
public void setObjectForPosition(View view, int position)
{
mChildrenViews.put(position, view);
}

@Override
public boolean onTouchEvent(MotionEvent ev) {
if (!scrollble) {
return true;
}
return super.onTouchEvent(ev);
}

public boolean isScrollble() {
return scrollble;
}

public void setScrollble(boolean scrollble) {
this.scrollble = scrollble;
}

}

public class View_prodesc extends Fragment{

MyViewPager vpp;
View v;
public View_prodesc(MyViewPager vp) {
this.vpp = vp;
}
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
v=inflater.inflate(R.layout.t_lin, null);
vpp.setObjectForPosition(v,0);
initView();
hosabout();
return v;
}

mViewPager.setAdapter(mAdapter);
//TabLayout的切换监听
mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}

@Override
public void onPageSelected(int position) {
mViewPager.resetHeight(position);
((NestedScrollView) findViewById(R.id.item_detail_container)).scrollTo(0, 0);
}

@Override
public void onPageScrollStateChanged(int state) {

}
});
mViewPager.resetHeight(0);
}