[WEEX-69] Replace Facebook's Yoga in Weex with Google's FlexboxLayout to avoid potential license issue.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.12, 0.13, 0.14, 0.15, 0.16
• Fix Version/s: 0.19
• Component/s: Android, iOS
• Labels: features security
• Flags: Patch, Important
• Assignee: Shihan Zheng
• Reporter: Shihan Zheng
• Due: 20/Sep/17
• Created: 20/Sep/17 12:15
• Updated: 01/Jun/18 03:21
• Resolved: 01/Jun/18 03:21

Description

As we know,The Apache Software Foundation bans the usage of Facebook BSD+Patents licensed in Apache products
The Facebook BSD+Patents license includes a specification of a PATENTS file that passes along risk to downstream consumers of our software imbalanced in favor of the licensor, not the licensee, thereby violating our Apache legal policy of being a universal donor. The terms of Facebook BSD+Patents license are not a subset of those found in the ALv2, and they cannot be sublicensed as ALv2.”
Weex-Team have heard the news and we decide to remove Facebook Yoga with its additional Facebook BSD+Patents license. In order to release the next version as soon as possible, we will create a new LayoutEngine based on the Google 's Flex-Layout.

Issue Links

• links to: GitHub Pull Request #1132