android - Clear backstack and replace current fragment with a top-level fragment -

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I have an activity in my Android app that controls the replacement of multiple views / pieces, top-level in this activity There is also a navigation drawer to navigate the pieces. You can navigate to the detail-level pieces with the top-level pieces.
Navigation drawer can always be accessed by sliding it from the left if the current piece is a top-level piece, navigation-drawer can also be accessed by the action-bar. If the current piece is an extension-level piece, you can navigate back through action-times (or by pressing the back button).

Let's say that I have three top-level pieces that can be accessed through the navigation drawer. From , piece [2] section [1] , you can navigate to the extension-level section [1.1] .

The user now wants to navigate directly from the top level section [3] to the current section [1.1] . The user simply needs to slide in the navigation drawer and click on the item for piece [3] .
Now, if the user hits the back button, then the application should be closed (because it was a top-level piece navigated). Therefore, backstacks should be cleaned every time the user navigates to the top-level piece. To see if I should display a drawer indicator, I am reading getBackStackEntryCount () - and compare it to 0.

As a summary, I want to navigate to any top-level pieces from the extension-level pieces and clean the backstacks.

Issue:
When I clear the backstack by executing getSupportFragmentManager (). PopBackStackImmediate (empty, piece manager. POP_BACK_STACK_INCLUSIVE); , Piece transactions are replayed in reverse (for example, piece [1] to piece [1.1] replacement). And I do not want them to play again. I have a lot of initialization on catevu, onview, onstart, .., also starting the work to bring the data. And I want to leave all this with just a new top-level one, instead of the detail level scene which was not already in the backstack.

I did not find any solution to clear the backstack without removing any pop-up transactions. Clean solution to handle this problem? Do I have to implement my backstack behavior?

Edit: The YouTube app also behaves this way. When you navigate from details to upper-level, the backstack is cleared. But how do they clean backstacks without running pieces-transection?

Thank you for your reply.

I think your problem is that you are pulling pieces in a loop - I think I usually specify custom animations as well as pieces on pieces - slide from the right to the new piece and when we press it we get out of the right now - if your user has 1 piece 1.1 and Navigate to 1.2 etc. and you want to navigate once again. Yes, when a user clicks the Home button in the action bar - specify the name of the name for you. If you popping using that name, consider using the popback stack function instead of the popback stacks Imprand.


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