Android Lazy loading of images with Grid view ( Without using any libraries )

Question

I need to download images from server and cache efficiently and need to display in grid view. I don't want to use any libraries.

Can any one help me. Am new to android.

Thanks in advance, Deepak

Answer 1

Use this project and Add four files to your project i.e. https://github.com/thest1/LazyList/tree/master/src/com/fedorvlasov/lazylist

You don't need any Library. It will work standalone.

public class LazyAdapter extends BaseAdapter {

    private Activity activity;
    private String[] data;
    private static LayoutInflater inflater=null;
    **public ImageLoader imageLoader;** 

    public LazyAdapter(Activity a, String[] d) {
        activity = a;
        data=d;
        inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        **imageLoader=new ImageLoader(activity.getApplicationContext());**
    }

    public int getCount() {
        return data.length;
    }

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

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

    public View getView(int position, View convertView, ViewGroup parent) {
        View vi=convertView;
        if(convertView==null)
            vi = inflater.inflate(R.layout.item, null);

        TextView text=(TextView)vi.findViewById(R.id.text);;
        ImageView image=(ImageView)vi.findViewById(R.id.image);
        text.setText("item "+position);
        **imageLoader.DisplayImage(data[position], image);**
        return vi;
    }
}

Check Bold Strings. in Which custom LazyAdapter shows to set image inside your adapter. That adapter set to Gridview.