Fix issue #336

[ly85206559]

This is not the best sulotion,but now it can resolve the problem. This problem is not so easy. Calculate the decoration is conflict with the method isWrapRequired,and i can not reuse the view for both calculate the decoraion and isWrapRequired. So this solution is just for get the decoration with the view,and the capability maybe not so good.But it certenly solve the problem.

[googlebot]

Thanks for your pull request. It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

:memo: Please visit https://cla.developers.google.com/ to sign.

Once you've signed, please reply here (e.g. I signed it!) and we'll verify. Thanks.

---

• If you've already signed a CLA, it's possible we don't have your GitHub username or you're using a different email address. Check your existing CLA data and verify that your email is set on your git commits.
• If your company signed a CLA, they designated a Point of Contact who decides which employees are authorized to participate. You may need to contact the Point of Contact for your company and ask to be added to the group of authorized contributors. If you don't know who your Point of Contact is, direct the project maintainer to go/cla#troubleshoot.
• In order to pass this check, please resolve this problem and have the pull request author add another comment and the bot will run again.

[ly85206559]

I have got CLA data

[googlebot]

CLAs look good, thanks!