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Change Image from a ListAdapter


Change Image from a ListAdapter

By : user2950247
Date : November 17 2020, 11:52 AM
Any of those help I want to call a image from the res/drawable folder utilizing a ListAdapter , You should create your own custom adapter, something like this:
code :
public class HospitaisAdapter extends BaseAdapter {

    private List<Hospitais> ListaHospitais; // or what type this list is
    private Context context;

    private LayoutInflater layoutInflater;

    public HospitaisAdapter (Context context, List<Hospitais> ListaHospitais) {
        this.ListaHospitais= ListaHospitais;
        this.context=context;
        layoutInflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {
        return ListaHospitais.size();
    }

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

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

    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = layoutInflater.inflate(R.layout.list_row, null);
         /*the row layout should be the layout for a row from your listview,
        containing your  imageView and nome as well as pid data.
        I will suppose pid and nome are Strings and are  displayed in a TextView */

            holder = new ViewHolder();
            holder.pid= (TextView) convertView.findViewById(R.id.pid);
            holder.nome= (TextView) convertView.findViewById(R.id.nome);
            holder.image= (ImageView) convertView.findViewById(R.id.imglotacao);

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

        Hospitais item = (Hospitais) ListaHospitais.get(position);

        holder.pid.setText(item.getPid());
        holder.nome.setText(item.getNome());

        holder.image.setImageDrawable(context.getResources().getDrawable(R.drawable.image_name));


        return convertView;
    }

    static class ViewHolder {
        TextView pid;
        TextView nome;
        ImageView image;

    }
}
listView.setAdapter(new HospitaisAdapter(this,ListaHospitais));


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ListAdapter and Set image from web

ListAdapter and Set image from web


By : jeje
Date : March 29 2020, 07:55 AM
should help you out The best way to display images in a Listview while downloading them in the background thread is fedors LazyList
How can I add Bitmap image to ListAdapter?

How can I add Bitmap image to ListAdapter?


By : Chris
Date : March 29 2020, 07:55 AM
hope this fix your issue By extending BaseAdapter class you can easily add bitmap image in your ListView
code :
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {     

        View row = convertView;
     // if it's not recycled, initialize some attributes
        if (row == null) {  
            LayoutInflater li = (LayoutInflater)   mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
            row = li.inflate(R.layout.menucategory, null);          
            //imageView.setLayoutParams(new GridView.LayoutParams(85, 85));         
        }
            // getCategoryItem          
            Category  category = (Category) getItem(position);
            // Get reference to ImageView
            categoryIcon = (ImageView) row.findViewById(R.id.category_image);
            //categoryIcon.setLayoutParams(new GridView.LayoutParams(85, 85));
            categoryIcon.setScaleType(ImageView.ScaleType.CENTER_CROP);
            categoryIcon.setPadding(5, 5, 5, 5);

            categoryName = (TextView) row.findViewById(R.id.category_name);
            //Set category name
            categoryName.setText(category.getCategoryName());           


            if(category.getCategoryPath() != null){             
                    Bitmap bitmap = BitmapFactory.decodeFile(category.getCategoryPath());
                    System.out.println("bitmap2::  "+ bitmap);
                    if(bitmap != null){
                     categoryIcon.setImageBitmap(bitmap);
                    }               
            }                              

        return row;
    }
How to put an image inside a listAdapter

How to put an image inside a listAdapter


By : Ari
Date : March 29 2020, 07:55 AM
I wish this helpful for you You need to override the method getView in the ArrayAdapter you created
code :
public View getView(int position, View convertView, ViewGroup parent) {
  // Customize the view
}
ListAdapter not change data with notifyDataSetChanged?

ListAdapter not change data with notifyDataSetChanged?


By : user3051828
Date : March 29 2020, 07:55 AM
wish help you to fix your issue notifyDataSetChanged will check if you have called clear, add, delete method when update data. So you must used the method mentioned instead of assign list this.list = list
code :
//change adapter
public void changeList(List<Cidade> list){
    this.list.clear();
    for(Cidade item: list){
        this.list.add(item);
    }
    notifyDataSetChanged();
}
Where to bind selection change to ListAdapter in .kv

Where to bind selection change to ListAdapter in .kv


By : sofo boachie
Date : March 29 2020, 07:55 AM
it fixes the issue In the following kv section:
code :
TabbedPanelItem:
        id: tab2
        text: 'VIEW'
        on_press: root.viewInit()
        ListView:
            id: view_list
            adapter: 
                ListAdapter(
                data= root.valid_views,
                selection_mode='multiple',
                allow_empty_selection=True,
                cls=ListItemButton,
                on_selection_change = root.somefunc()) 
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