popscene回调函数

Question

cocos2d-iphone
我现在在sceneA使用pushScene函数跳转到sceneB，现在在使用popScene跳转到A，要实现什么函数才能完成回调呢？

Answer 1

From A to B:

[[[CCDirector sharedDirector] pushScene:[sceneB scene]]];

Pop back to A:

[[[CCDirector sharedDirector] popScene]];

Call popScene in the backToSceneA button's block or selector.