Programmatically select an item in the ListView by id

In fact, the task is reduced to finding a position in the list by the id of the list item and applying the found position: ListView.setSelection(position)

There are 2 ways to bind id to position:

1) Hand to hand to find the position of the list by id, such as:

 public int getPositionById(long id) { for (int position=0; position<mList.size(); position++) if (mList.get(position).getId() == id) return position; return 0; } 

the way is frankly crappy, especially in the case when the Cursor is the backend

2) Method 2 is better:

 public View getView (int position, View convertView, ViewGroup parent) { //blah-blah convertView.setTag(convertView.getId(),position); //позицию храним в теге return convertView; } 

Then you can already find through the tag:

 int getItemPosition(View view) { return view.getTag(view.getId()); } 

In the case of a CursorAdapter usually instead of getView() , the pair newView()/bindView() , which does not change the essence - in the source code of the CursorAdapter() it is written like this:

 /** * @see android.widget.ListAdapter#getView(int, View, ViewGroup) */ public View getView(int position, View convertView, ViewGroup parent) { if (!mDataValid) { throw new IllegalStateException("this should only be called when the cursor is valid"); } if (!mCursor.moveToPosition(position)) { throw new IllegalStateException("couldn't move cursor to position " + position); } View v; if (convertView == null) { v = newView(mContext, mCursor, parent); } else { v = convertView; } bindView(v, mContext, mCursor); return v; } 

So tag insertion can be safely inserted into bindView()