在Android中的一个动作中添加一个片段并释放背堆栈片段

Question

如何在一个动作中添加一个片段并在Android中释放所有的背堆栈？

我已经试过：

getSupportFragmentManager().popBackStack(null,FragmentManager.POP_BACK_STACK_INCLUSIVE); 

然后加入我的新片段：

FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); 
    fragmentTransaction.setCustomAnimations(R.anim.slide_in_right, R.anim.slide_out_left); 
    fragmentTransaction.replace(R.id.content_frame, fragment); 
    fragmentTransaction.commitAllowingStateLoss(); 
    // or 
    fragmentTransaction.commit(); // i tried both of them 

，但我得到：

java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState 

Answer 1

使用ft.addToBackStack（空）到避免碎片堆栈

例如： -

SignUpAsFragment signUpAsFragment=new SignUpAsFragment(); 
    FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); 
    ft.replace(R.id.user_signUp_frag_container,signUpAsFragment); // container is your FrameLayout container 
    ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN); 
    ft.addToBackStack(null); 
    ft.commit();