自己实现CursorAdapter

没什么好说的，注意bindView和newView就行。

public class MySimpleCursorAdapter extends CursorAdapter {
    private LayoutInflater mInflater;

    public MySimpleCursorAdapter(Context context, Cursor c) {
        super(context, c, false);
        mInflater = LayoutInflater.from(context);
    }

    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {
        return mInflater.inflate(android.R.layout.simple_list_item_1, parent, false);
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {
        TextView text = (TextView)view.findViewById(android.R.id.text1);
        text.setText(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)));
    }
}

主Activity

        Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null,  
                null, null, null);
        MySimpleCursorAdapter cursorAdapter = new MySimpleCursorAdapter(this, cursor);
        listview.setAdapter(cursorAdapter);

好了，就这么简单。

CursorAdapter也是BaseAdapter的一个子类，重写getView方法时用到了bindView和newView

    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;
    }

第一屏显示完后，再去滑动listview，系统会直接调用bindView，不会再去new了。