android - ListView的自定义适配器

Question

我的 ListView 有多个项目。每个 Item 都有一个 TextView 和两个 ImageView。我已经通过使用自定义适配器实现了这一点。我的 ListView 中的每个 ImageView 都有 5 张图片。如何在自定义适配器的 ImageView 中重复显示 5 张图像？我想以 15 秒的间隔重复所有 ImageView 中的图像。

public class CategoryAdapter extends BaseAdapter {
    public Activity adapterActivity;
    LayoutInflater adapterInflater;
    ImageLoader compImageLoader;
    List<Categary> list;

    ArrayList<String> category = new ArrayList<String>();
    ArrayList<String> leftImage = new ArrayList<String>();
    ArrayList<String> rightImage = new ArrayList<String>();

    public CategoryAdapter(Activity activity, List<Categary> listData) {
        list = listData;
        adapterActivity = activity;
        adapterInflater = (LayoutInflater) adapterActivity
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        compImageLoader = new ImageLoader(
                adapterActivity.getApplicationContext());
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return list.size();
    }

    @Override
    public Object getItem(int position) {
        return position;
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    public class ViewHolder {
        public ImageView lPic, rPic;
        public TextView category;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {

        View vi = convertView;
        final ViewHolder holder;
        if (vi == null) {

            vi = adapterInflater.inflate(R.layout.categoryadapter, null);
            holder = new ViewHolder();
            holder.lPic = (ImageView) vi.findViewById(R.id.imageView1);
            holder.rPic = (ImageView) vi.findViewById(R.id.imageView2);
            holder.category = (TextView) vi
                    .findViewById(R.id.textView_category);
            vi.setTag(holder);
        } else {
            holder = (ViewHolder) vi.getTag();
        }
        final Categary assingValue = list.get(position);
        holder.lPic.setTag(assingValue.leftPicture);
        holder.rPic.setTag(assingValue.rightPicture);
        holder.category.setText(assingValue.id);
        compImageLoader.DisplayImage(assingValue.leftPicture, holder.lPic);
        compImageLoader.DisplayImage(assingValue.rightPicture, holder.rPic);
        return vi;
    }          
}

Answer 1

AnimationDrawable是正确的组件:

在您的 getView() 中，我假设您有一个名为 imageView 的 ImageView。我还假设您有一个代表图像的 Drawables 数组:

AnimationDrawable animation = new AnimationDrawable();
for (Drawable image : images) {
    animation.addFrame(image, 15 * 1000L);
}
imageView.setImageDrawable(animation);
animation.start();

这可能会根据您的图像在您的应用程序中的可用方式而改变。