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POGeneric adapter for many kinds of listview 's layout row in android
 

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  1. POGeneric adapter for many kinds of listview 's layout row in android
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    <p>For each list view with difference row layout template, I must create each custom adapter, which do the same thing: load xml row layout, get control (TextView, ImageView, etc..) by id, display data... something like this:</p> <pre><code>public class CommentAdapter extends BaseAdapter { protected Activity activity; protected static LayoutInflater layoutInflater = null; protected List&lt;Comment&gt; lst; public CommentAdapter(Activity activity, List&lt;Comment&gt; lst){ this.activity = activity; this.lst = lst; layoutInflater = (LayoutInflater)this.activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } public int getCount() { return lst.size(); } public Object getItem(int position) { return lst.get(position); } public long getItemId(int position) { return position; } public static class ViewHolder{ public TextView textName; public TextView textComment; public ImageView image; } public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; ViewHolder viewHolder; if (v == null) { v = layoutInflater.inflate(R.layout.listitem, null); viewHolder = new ViewHolder(); viewHolder.textName = (TextView) v.findViewById(R.id.txtName); viewHolder.image = (ImageView) v.findViewById(R.id.icon); viewHolder.textComment = (TextView)v.findViewById(R.id.txtComment); v.setTag(viewHolder); } else { viewHolder = (ViewHolder) v.getTag(); } Static.overrideFonts(v); viewHolder.image.setBackgroundResource(lst.get(position).Icon); viewHolder.textName.setText(lst.get(position).Name); viewHolder.textComment.setText(lst.get(position).Comment); return v; } } </code></pre> <p>With many kind of list view (difference row layout template), I have to create many adapters. <br> So, the question is that I want to create one template adapter, which can be dynamic load row xml, map view control base on its id (maybe use reflect). The row xml layout, the control id, view control will be defined in another places.<br> Is there any <code>design pattern</code>, <code>example</code> or <code>framework</code> can achieve this?</p>
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    1. COI'd look into the Strategy design pattern for that.
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    2. COsince the entire purpose of an adapter is to translate between the data and the view, i don't think you can avoid the logic in getView if you want to use different row layouts.
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      1. UStoadzky
    3. CO@toadzky I don't avoid logic in get view, I just want to map data with view property one by one (the map table can be defined in another place). But it's only my idea, I haven't implemented it.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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