CODEWITHSUNDEEP
androidandroid-recyclerviewgridlayoutmanager
Birdman
Birdman

Reputation: 47

RecyclerView does not change from 2 columns to 3 columns when phone is rotated

RecyclerView does not switch from two columns to three columns when I rotate the view to landscape. I tried this code:

mGLManager.setSpanCount(3);

mGLManager = (GridLayoutManager)mRecyclerView.getLayoutManager();
mGLManager.setSpanCount(2);
mRecyclerView.setLayoutManager(mGLManager);

mRecyclerView.setLayoutManager( new GridLayoutManager(MainActivity.this, 3) );

I also tried these lines to get it to refresh:

mRecyclerView.refreshDrawableState();

mAdapter.notifyDataSetChanged();

mRecyclerView.invalidate();

mRecyclerView.requestLayout();

mRecyclerView.swapAdapter(mRecyclerView.getAdapter(), true);
mRecyclerView.scrollBy(0,0);

Here is my current code. 

public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);

        // set the number of columns based on the orientation
        if( newConfig.orientation == Configuration.ORIENTATION_PORTRAIT ) {
            mRecyclerView.setLayoutManager( new GridLayoutManager(MainActivity.this, 2));
            mRecyclerView.invalidate();
            Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
        } else if( newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE ) {
            mRecyclerView.setLayoutManager( new GridLayoutManager(MainActivity.this, 3));
            mRecyclerView.invalidate();
            Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
        }
    }

The toasts demonstrate that the code runs when I flip the orientation. Thanks for your help!

Upvotes: 1

Views: 1311

Answers (1)

Sasi Kumar
Sasi Kumar

Reputation: 13358

Add inside your onCreateView method of Activity it will be called each time of an orientation change

if(getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT){
 mRecycler.setLayoutManager(new GridLayoutManager(MainActivity.this, 2));
}
else{
 mRecycler.setLayoutManager(new GridLayoutManager(MainActivity.this, 3));
  }

Upvotes: 5

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