Question

我想在itemonclick时突出显示库选择的项目。

我的画廊getview模块

@Override
        public View getView(int position, View convertView, ViewGroup arg2) {
            // TODO Auto-generated method stub



            if(convertView==null){


                holder=new ViewHolder();
                convertView=inflate.inflate(R.layout.customfiltergallery, null);
                holder.image=(ImageView) convertView.findViewById(R.id.glview);
                holder.text=(TextView) convertView.findViewById(R.id.gltext);

                //holder.image.setLayoutParams(new Gallery.LayoutParams(100, 100));  
                holder.image.setScaleType(ImageView.ScaleType.FIT_CENTER);

                holder.image.setPadding(1,1,1,1);
                //holder.text.setPadding(10, 10, 10, 10);
                //holder.image.setBackgroundColor(Color.BLACK);


                convertView.setTag(holder);
            }


            else
            {
                holder=(ViewHolder) convertView.getTag();
            }


            holder.image.setImageResource(mImageIds[position]);





            return convertView;

        }

我想突出显示所选的图库项目。当我将imageview的点击监听器放在Getview()内时，应用程序运行缓慢......

Answer 1

如果您正在使用android.widget.Gallery（在api 16中已弃用），则只需将setOnItemClickListener设置为您的图库对象。

android.widget.Gallery gallery = (android.widget.Gallery) findViewById(R.id.your_gallery);

    gallery.setOnItemClickListener(new OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
        // Here you should hightlight v object as you want
        // And save item id to dehightlight previous selected item
        // Dehighlight previous selected item if it is not null
    }
});

我会这样做

如何在android中设置图库中的突出显示项目onitemclick

1 个答案: