Thanks for your help! Dingping.
Although 2.2 has fixed this bug,
it means I have to change version of cocos2d-x to 2.2.
This version has another bug in Particle System and JSB,
If I change to that version, BTW have to change to new method on cocos2d-x 2.2,
that’s a big disaster.
I’ll fix this problem refer this pull,
Encounter one bug—>change to new version for this bux—>Encounter new bug in new version—>Can’t find solution in Google because it’s the newest —>Give up and back forward to Old cocos2dx version then fix bug by myself.
This is experience of my cocos2d-x coding road in a year.