This seems like it would be an easy solution, but it seems that setting
private RecyclerView mRecyclerView;
private RecyclerView.Adapter mAdapter;
private LinearLayoutManager mLayoutManager;
.... // More code
mRecyclerView = (RecyclerView) rootView.findViewById(R.id.recycler_view);
// Add item decoration
mRecyclerView.addItemDecoration(new SpacesItemDecoration(DIVIDER_SPACE));
// use this setting to improve performance if you know that changes
// in content do not change the layout size of the RecyclerView
mRecyclerView.setHasFixedSize(true);
// use a linear layout manager
mLayoutManager = new LinearLayoutManager(getActivity());
mLayoutManager.setReverseLayout(true); // THIS ALSO SETS setStackFromBottom to true
mRecyclerView.setLayoutManager(mLayoutManager);
Seems to also set the items to stack from the bottom
I tried to set setStackFromBottom
to false but that didn't do anything, what would be the best way to reverse the items order but still populate from the top? Should I use a Custom Comparator class instead? I was hoping this would be an easier process than creating another class.
from the docs for setReverseLayout
Used to reverse item traversal and layout order. This behaves similar to the layout change for RTL views. When set to true, first item is laid out at the end of the UI, second item is laid out before it etc. For horizontal layouts, it depends on the layout direction. When set to true, If RecyclerView is LTR, than it will layout from RTL, if RecyclerView} is RTL, it will layout from LTR. If you are looking for the exact same behavior of
setStackFromBottom(boolean)
, usesetStackFromEnd(boolean)
So, try also using setStackFromEnd(boolean) on your LinearLayoutManager instance,
LinearLayoutManager mLayoutManager = new LinearLayoutManager(getActivity());
mLayoutManager.setReverseLayout(true);
mLayoutManager.setStackFromEnd(true);
The accepted answer works well and I went through a hardship to make it work as I was getting can not resolve method setReverseLayout
error.
Then after searching for solutions I found there was a silly mistake out there. I was using RecyclerView.LayoutManager
instead of LinearLayoutManager
.
So I thought to remove the confusions around here I need to put it as an answer.
Do not use RecyclerView.LayoutManager
instead of LinearLayoutManager
// Declare your RecyclerView and the LinearLayoutManager like this
private RecyclerView mRecyclerView;
private LinearLayoutManager mLayoutManager;
...
// Now set the properties of the LinearLayoutManager
mLayoutManager = new LinearLayoutManager(MainActivity.this);
mLayoutManager.setReverseLayout(true);
mLayoutManager.setStackFromEnd(true);
// And now set it to the RecyclerView
mRecyclerView.setLayoutManager(mLayoutManager);
mRecyclerView.setAdapter(yourAdapter);
I found the effective method to solve this using xml:
app:layoutManager="android.support.v7.widget.LinearLayoutManager"
app:stackFromEnd="true"
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