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Implementation of SimpleCursorAdapter for the new RecyclerView. It extends this gist: https://gist.github.com/quanturium/46541c81aae2a916e31d
/*
* The MIT License (MIT)
*
* Copyright (c) 2015 ARNAUD FRUGIER
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import android.database.Cursor;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class SimpleCursorRecyclerAdapter extends CursorRecyclerAdapter<SimpleViewHolder> {
private int mLayout;
private int[] mFrom;
private int[] mTo;
private String[] mOriginalFrom;
public SimpleCursorRecyclerAdapter (int layout, Cursor c, String[] from, int[] to) {
super(c);
mLayout = layout;
mTo = to;
mOriginalFrom = from;
findColumns(c, from);
}
@Override
public SimpleViewHolder onCreateViewHolder (ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(mLayout, parent, false);
return new SimpleViewHolder(v, mTo);
}
@Override
public void onBindViewHolder (SimpleViewHolder holder, Cursor cursor) {
final int count = mTo.length;
final int[] from = mFrom;
for (int i = 0; i < count; i++) {
holder.views[i].setText(cursor.getString(from[i]));
}
}
/**
* Create a map from an array of strings to an array of column-id integers in cursor c.
* If c is null, the array will be discarded.
*
* @param c the cursor to find the columns from
* @param from the Strings naming the columns of interest
*/
private void findColumns(Cursor c, String[] from) {
if (c != null) {
int i;
int count = from.length;
if (mFrom == null || mFrom.length != count) {
mFrom = new int[count];
}
for (i = 0; i < count; i++) {
mFrom[i] = c.getColumnIndexOrThrow(from[i]);
}
} else {
mFrom = null;
}
}
@Override
public Cursor swapCursor(Cursor c) {
findColumns(c, mOriginalFrom);
return super.swapCursor(c);
}
}
class SimpleViewHolder extends RecyclerView.ViewHolder
{
public TextView[] views;
public SimpleViewHolder (View itemView, int[] to)
{
super(itemView);
views = new TextView[to.length];
for(int i = 0 ; i < to.length ; i++) {
views[i] = (TextView) itemView.findViewById(to[i]);
}
}
}
@goetzc

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goetzc commented Oct 3, 2016

What are those constructor parameters: from and to?

SimpleCursorRecyclerAdapter(int layout, Cursor c, String[] from, int[] to) 

EDIT
Found it in a comment in your web site:
"String[] from is the array of column names. int[] to is the ids of the TextViews you want the columns mapped to."
I guess the ids should be in form R.id.my_view_id.

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