Position get out of index when choosing app

[luciferz2012]

for code in AppListAdapter.java:

        holder.up.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View v) {
                Collections.swap(mApps, position, position - 1);
                notifyDataSetChanged();
                onSwappedListPositions();
            }
        });
        holder.down.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View v) {
                Collections.swap(mApps, position, position + 1);
                notifyDataSetChanged();
                onSwappedListPositions();
            }
        });

Please check if the position is 0 or mApps.size()-1

PS: This app is great! Good job!