SimpleAdapter動的データのロード

import java.util.List;
import java.util.Map;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Checkable;
import android.widget.ImageView;
import android.widget.RatingBar;
import android.widget.SimpleAdapter;
import android.widget.TextView;

public class MyAdapter extends SimpleAdapter {

	private int[] mTo;
	private String[] mFrom;
	private ViewBinder mViewBinder;
	private List extends Map> mData;
	private int mResource;
	private int mDropDownResource;
	private LayoutInflater mInflater;

	public MyAdapter(Context context, List extends Map> data,
			int resource, String[] from, int[] to) {
		super(context, data, resource, from, to);
		mData = data;
		mResource = mDropDownResource = resource;
		mFrom = from;
		mTo = to;
		mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
	}
	
	@Override
	public int getCount() {
		return mData.size();
	}

	public View getView(int position, View convertView, ViewGroup parent) {
		return createViewFromResource(position, convertView, parent, mResource);
	}

	/**
	 *             
	 * @param position
	 * @param convertView
	 * @param parent
	 * @param resource
	 * @return
	 */
	private View createViewFromResource(int position, View convertView,
			ViewGroup parent, int resource) {
		View v;
		if (convertView == null) {
			v = mInflater.inflate(resource, parent, false);

			final int[] to = mTo;
			final int count = to.length;
			final View[] holder = new View[count];

			for (int i = 0; i < count; i++) {
				holder[i] = v.findViewById(to[i]);
			}

			v.setTag(holder);
		} else {
			v = convertView;
		}
		bindView(position, v);

		return v;
	}

	/**
	 *      
	 * @param position
	 * @param view
	 */
	private void bindView(int position, View view) {
		final Map dataSet = mData.get(position);
		if (dataSet == null) {
			return;
		}
		final ViewBinder binder = mViewBinder;
		final View[] holder = (View[]) view.getTag();
		final String[] from = mFrom;
		final int[] to = mTo;
		final int count = to.length;

		for (int i = 0; i < count; i++) {
			final View v = holder[i];
			if (v != null) {
				final Object data = dataSet.get(from[i]);
				String text = data == null ? "" : data.toString();
				if (text == null) {
					text = "";
				}
				boolean bound = false;
				if (binder != null) {
					bound = binder.setViewValue(v, data, text);
				}
				if (!bound) {
					if (v instanceof Checkable) {
						if (data instanceof Boolean) {
							((Checkable) v).setChecked((Boolean) data);
						} else {
							throw new IllegalStateException(v.getClass()
									.getName()
									+ " should be bound to a Boolean, not a "
									+ data.getClass());
						}
					} else if (v instanceof TextView) {
						((TextView) v).setText(text);
					} else if (v instanceof ImageView) {
						if (data instanceof Integer) {
							setViewImage((ImageView) v, (Integer) data);
						} else if (data instanceof byte[]) { //   1
							// Bitmap bmp;
							// byte[] image = (byte[])data;
							// if(b.length!=0){
							// bmp = BitmapFactory.decodeByteArray(b, 0, b.length);
							// ((ImageView) v).setImageBitmap(bmp);
						}
					} else if (v instanceof RatingBar) {
						float score = Float.parseFloat(data.toString()); //   2
						((RatingBar) v).setRating(score);
					} else {
						throw new IllegalStateException(
								v.getClass().getName()
										+ " is not a "
										+ " view that can be bounds by this SimpleAdapter");
					}
				}
			}
		}
	}

	public void setViewImage(ImageView v, int value) {
		v.setImageResource(value);
	}
	
	public void setListData(List extends Map> data){
		mData = data;
	}
}

SimpleAdapterをテストしてデータを遅延してロードして、動的に更新する時いくつか問題があって、MyAdapterを修正して、このようなカスタムデータのバインドによく適応することができます!