Requirement scenarios:

The following scenario is encountered during development:

1. Create Fragment A. In this case, the stack structure is:

　　

1.Fragment A 
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2. Create Fragment B and display it. From bottom to top, the stack looks like this:

2.Fragment B
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1.Fragment A
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3. Create Fragment C and display it. From bottom to top, the stack looks like this:

3.Fragment C
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2.Fragment B
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1.Fragment A
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So, how to jump from Fragment C to Fragment A all at once?

 

Implementation:

When pushing, use the method

AddToBackStack (nameForBackstackstate) passes in a parameter name, which is an indication of Fregment and will be used next.Copy the code

Code:

FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
String name = fragment.getClass().getName();
fragmentTransaction.replace(R.id.container, fragment).addToBackStack(nameForBackstackstate).commit();
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Do this when popping up:

fragmentManager.popBackStackImmediate(FragmentA.class.getName() , FragmentManager.POP_BACK_STACK_INCLUSIVE);
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The second argument to this method

POP_BACK_STACK_INCLUSIVE indicates that this pop-up behavior is to stack all fragments above the Fragment of "specified name" at once.Copy the code

Reference:

www.cnblogs.com/qixing/p/40…