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  1. PO
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    <p>I use a solution that does the trick for all my different needs, and which is simpler than implementing Cursor.<br> Here is an example where I have to add extra "playlist" rows to a Cursor, retrieved from the Mediastore. I add rows at first indexes of the original Cursor :</p> <pre><code>public class CursorWithExtraPlaylists extends CursorWrapper { public static final int ID_COLUMN_INDEX = 0; public static final int NAME_COLUMN_INDEX = 1; private int mPos = -1; private Context mContext; private Playlist[] extras; public CursorWithExtraPlaylists(Cursor cursor, Context context, Playlist[] extras) { super(cursor); mContext = context; this.extras = extras; } @Override public int getCount() { return super.getCount() + extras.length; } @Override public int getPosition() { return mPos; } @Override public boolean moveToFirst() { return moveToPosition(0); } @Override public boolean moveToLast() { return moveToPosition(getCount() - extras.length); } @Override public boolean move(int offset) { return moveToPosition(mPos + offset); } @Override public boolean moveToPosition(int position) { // Make sure position isn't past the end of the cursor final int count = getCount(); if (position &gt;= count) { mPos = count; return false; } // Make sure position isn't before the beginning of the cursor if (position &lt; 0) { mPos = -1; return false; } // Check for no-op moves, and skip the rest of the work for them if (position == mPos) { return true; } mPos = position; if (mPos &gt; 0) { // ok, that concerns super cursor return super.moveToPosition(mPos - 1); } return true; } @Override public boolean moveToNext() { return moveToPosition(mPos + 1); } @Override public boolean moveToPrevious() { return moveToPosition(mPos - 1); } private boolean isPointingOnExtras() { if (-1 == mPos || getCount() == mPos) { throw new CursorIndexOutOfBoundsException(mPos, getCount()); } if (mPos &lt;= extras.length - 1) { // this is a request on an extra value return true; } return false; } private Object getExtraValue(int columnIndex) { switch (columnIndex) { case ID_COLUMN_INDEX: return extras[mPos].getId(); case NAME_COLUMN_INDEX: return extras[mPos].getName(mContext); } return null; } @Override public int getInt(int columnIndex) { if (isPointingOnExtras()) return (Integer) getExtraValue(columnIndex); int res = super.getInt(columnIndex); return res; } @Override public String getString(int columnIndex) { if (isPointingOnExtras()) return getExtraValue(columnIndex).toString(); return super.getString(columnIndex); } public static class Playlist { private int mId; private int mNameResId; public Playlist(int mId, int nameResId) { this.mId = mId; this.mNameResId = nameResId; } public int getId() { return mId; } public String getName(Context mContext) { return mContext.getResources().getString(mNameResId); } } } </code></pre> <p>Original cursor has 2 columns (int,String), so I construct it with an array of extra rows objects.</p>
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    1. POAdding rows into Cursor manually
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    1. USelgui
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    1. COthis is awesome.. thanks a lot
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      1. USamithgc
 

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