getChildFragmentManager（）方法未定义

Question

I have the same issue has this post: android.support.v4.app.Fragment: undefined method getChildFragmentManager() . I need to use getChildFragmentManager() because I'm using nested fragments.

My problem is: the solution in the other post does not work for me:

• My SDK is updated.
• I got my android-support-v4 from the SDK folder.
• I added android-support-v4 both the my project and ABS.

Here is my libs:

How can I correctly use this method?

Answer 1

Not sure if you've resolved your issue yet, but I was having the same issue and I resolved it. The getCildFragmentManager() method is a method of the class Fragment and not FragmentActivity. Just because your class extends fragment activity does not mean you'll have access to this method. What I did is I created an instance of my fragment in which I wanted to place the child fragment and invoked the method through that fragment instance. There are obviously other approaches to this, but this worked for me.

Answer 2

也许是您的Android清单中的内容，请查看有关最低SDK版本的android清单的页眉或页脚。

Answer 3

This is because by using old android.support.v4.

once you change the latest library.it will solved I solved it by change it. Hope it will work