Android Lazy loading ViewPager

Question

I'm using a ViewPager with circle indicators for showing pictures.

I want to use the url of some images instead. Actually lazy load some images inside ViewPager with circle indicators. I have to change default image adapter to lazyloading adapter (which gets url of the images). Please help me with this.

The code for image adapter is this:

public class ImageAdapter extends BaseAdapter {

private LayoutInflater mInflater;
private static final int[] ids = { R.drawable.cupcake, R.drawable.donut, R.drawable.eclair, R.drawable.froyo,
        R.drawable.gingerbread, R.drawable.honeycomb, R.drawable.icecream };

public ImageAdapter(Context context) {
    mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

@Override
public int getCount() {
    return ids.length;
}

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

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

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    if (convertView == null) {
        convertView = mInflater.inflate(R.layout.image_item, null);
    }
    ((ImageView) convertView.findViewById(R.id.imgView)).setImageResource(ids[position]);
    return convertView;
}

}

And Main activity uses this code to lunch images:

viewFlow = (ViewFlow) findViewById(R.id.viewflow);
    viewFlow.setAdapter(imgLoader, 5);
    CircleFlowIndicator indic = (CircleFlowIndicator) findViewById(R.id.viewflowindic);
    viewFlow.setFlowIndicator(indic);

Community · Accepted Answer · 2020-06-20 09:12:55Z

1

use universal image loader for lazy load just in your getView() method in your adapter.

You don't need to re-invent lazy loading.

edited Jun 20, 2020 at 9:12

CommunityBot

11 silver badge

answered May 16, 2013 at 11:23

Ercan

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1 Comment

Namikaze Minato Over a year ago

Thanks. You are right. It seems getView() method works stand alone. I thought changing this method needs changing all imageLoader class.

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