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我有一个填充的 listView 购买自定义 CursorAdapter。我在每一行都有一个按钮,单击该按钮会切换数据库中的值并更改图标视图。该按钮的侦听器被添加到 bindView 方法中。问题是,当这种情况发生时,光标不会更新,所以下次重新绘制列表时(键盘弹出并消失,或者列表滚动)并且图标恢复到原始视图。因为这一切都发生在 CursorAdapter 类中,所以我无法从那里重新加载游标,并且 requery 已被弃用。如何在数据更改时触发重新加载游标?我不想为这个简单的任务使用 ContentProvider 和 ContentObserver。这看起来很基础,但我一直在倾注于这个网站和许多其他网站,

@Override
public void bindView(View view, Context context, Cursor cursor) {

        ViewHolder mvh = (ViewHolder)view.getTag();

        TextView productName = mvh.name;

        productName.setText(cursor.getString(cursor.getColumnIndex(ProductsDbAdapter.KEY_PRODUCT_NAME)));


        ImageView addShoppingIcon = mvh.addShopIcon;


        //get icon state from cursor. 
        boolean isneeded = (cursor.getInt(cursor.getColumnIndex(ProductsDbAdapter.KEY_PRODUCT_ISNEEDED)) == 0 ? false : true);

        //set icon tag with icon data for OnClick
        long rowid = cursor.getLong(cursor.getColumnIndex(ProductsDbAdapter.KEY_ROWID));
        addShoppingIcon.setTag(new PantryHolder(rowid,inpantry,isneeded));


        //set icon bitmap
        if(isneeded)
            addShoppingIcon.setImageBitmap(MainActivity.mPantryNeedIcon);
        else
            addShoppingIcon.setImageBitmap(MainActivity.mPantryHasIcon);


        //add listener      
        addShoppingIcon.setOnClickListener(new View.OnClickListener(){
            public void onClick(View v){
                PantryHolder mph = (PantryHolder)v.getTag(); 
                ImageView icon = (ImageView)v;
                if(mph.inpantry){
                    if (mph.isneeded) 
                        icon.setImageBitmap(MainActivity.mPantryHasIcon);
                    else 
                        icon.setImageBitmap(MainActivity.mPantryNeedIcon);

                } else {
                    if (mph.isneeded) 
                        icon.setImageBitmap(RealMealzActivity.mQuickAddIcon);
                    else 
                        icon.setImageBitmap(RealMealzActivity.mQuickAddGrayIcon);

                }
                mph.isneeded = !mph.isneeded;
                v.setTag(mph);
                                    //update database using database helper
                mDbAdapter.updateIsNeeded(mph.rowid, mph.isneeded);
            }
        }); 


}   
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