Get Position by PageDescriptor

[nicksardo]

Do you see any danger in providing the following? In my use case, I am constantly merging data to the PagerAdapter, and tracking the positions without entries would be painful.

public int getPosition(PageDescriptor pd){
    for(int x = 0; x < entries.size(); x++){
        if(getFragmentTag(x).equals(pd.getFragmentTag())){
            return x;
        }
    }
    return POSITION_NONE;
}

[commonsguy]

I don't quite get the "tracking positions without entries" bit. That being said, I don't see any particular problems with that method. Tags need to be unique anyway, so the loop should be reliable.

[Bamsoo]

@commonsguy: Amazing work! It should replace the old FragmentStatePagerAdapter. @nicksardo : +1 useful suggestion. Accessing fragment position in entries whatever their state may be (detached/removed depending on the retention strategy - or - active) would be so useful. For instance, my model is a firebase, and when I receive a deletion information in the model, I cannot get the position in entries to actually remove it (in my TabLayout), if the corresponding fragments are not active. At least set getFragmentTag as protected.