SQLite get all data and pass it to an Adapter

Question

I have this code which gets some data from a database

  public List getAllObjects() {
        List Objectslist = new ArrayList&         


        

Answer 1

I suggest you update your classes like the following:

Objects.java:

public class Objects {
    private int id;
    private String name;
    private String url;

    public Objects() {
    }

    public Objects(int id, String name, String url) {
        this.id = id;
        this.name = name;
        this.url = url;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }
}

DBAdapter.java:

public class DBAdapter extends ArrayAdapter<Objects> {
    private static Uri[] mUrls = null;
    private static String[] strUrls = null;
    private String[] mNames = null;
    private Cursor cc = null;
    private Context mcontext;
    private int layoutResourceId;
    private List<?> listitems;

    public DBAdapter(Context context, int layoutResourceId, List<Objects> listitem) {
        super(context, layoutResourceId, listitem);
        this.layoutResourceId = layoutResourceId;
        this.mcontext = context;
        this.listitems = listitem;
        System.out.println("entering adapter");
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        System.out.println("entering adapter1");

        View row = convertView;
        final ViewHolder holder;

        if (row == null) {
            LayoutInflater inflater = LayoutInflater.from(mcontext);
            row = inflater.inflate(layoutResourceId, parent, false);
            holder = new ViewHolder();
            holder.imageTitle = (TextView) row.findViewById(R.id.textView);
            holder.imageView = (ImageView) row.findViewById(R.id.imageView);
            row.setTag(holder);
        } else {
            holder = (ViewHolder) row.getTag();
        }
        Objects item = getItem(position);
        System.out.println("item.getUrl() ");
        System.out.println(item.getUrl());
        Picasso.with(mcontext).setIndicatorsEnabled(true);
        holder.imageTitle.setText(item.getId());
        Picasso.
                with(mcontext).
                load(item.getUrl())
                .placeholder(R.drawable.logo)
                .fit()
                .noFade()
                .into(holder.imageView);

        holder.imageView.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                Log.d("OnImageButton", "Clicked");
                Intent intnt = new Intent(mcontext, SingleViewActivity.class);
                intnt.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                //Bitmap imageID=holder.imageView;
                //intnt.putExtra("ImageId", imageID);
                mcontext.startActivity(intnt); 


                Toast.makeText(mcontext, "intent",
                        Toast.LENGTH_LONG).show();
            }
        });


        return row;
    }

    static class ViewHolder {
        TextView imageTitle;
        ImageView imageView;
    }
}

Answer 2

try this:

// Changed Listitem to Objects
public class DBadapter extends ArrayAdapter<Objects> {
    private static Uri[] mUrls = null;
    private static String[] strUrls = null;
    private String[] mNames = null;
    private Cursor cc = null;
    private Context mcontext;
    private int layoutResourceId;
    private List<?> listitems;
    public DBadapter(Context context, int layoutResourceId, List<Objects> listitem) {
        super(context, layoutResourceId, listitem);
        this.layoutResourceId = layoutResourceId;
        this.mcontext =context;
        this.listitems = listitem;
        System.out.println("entering adapter");
    }



    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        System.out.println("entering adapter1");

        View row = convertView;
        final  ViewHolder holder;


        if (row == null) {
            LayoutInflater inflater = LayoutInflater.from(mcontext);
            row = inflater.inflate(layoutResourceId, parent, false);
            holder = new ViewHolder();
            holder.imageTitle = (TextView) row.findViewById(R.id.text);
            holder.imageView = (ImageView) row.findViewById(R.id.imageView);
            row.setTag(holder);
        } else {
            holder = (ViewHolder) row.getTag();
        }
        // Added (ListItem) cast
        Listitem item = (Listitem) getItem(position); // here you should define your getItem(int) function in Objects class
        System.out.println("item.getUrl() ");
        System.out.println(item.getUrl());
        Picasso.with(mcontext).setIndicatorsEnabled(true);
        holder.imageTitle.setText(item.getId());
        Picasso.
                with(mcontext).
                load(item.getUrl())
                .placeholder(R.drawable.logo)
                .fit()
                .noFade()
                .into(holder.imageView);

        holder.imageView.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                Log.d("OnImageButton", "Clicked");
                Intent intnt  =new Intent(mcontext, SingleViewActivity.class);
                intnt.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                //Bitmap imageID=holder.imageView;
                //intnt.putExtra("ImageId", imageID);
                mcontext.startActivity(intnt)  ; //This line raises error


                Toast.makeText(mcontext, "intent",
                        Toast.LENGTH_LONG).show();
            }
        });


        return row;
    }

    static class ViewHolder {
        TextView imageTitle;
        ImageView imageView;
    }


}

Answer 3

Try to look at the difference between what have you done and what you need to do.

public class DBadapter extends ArrayAdapter<Objects> {

    List<Object> modelItems = null;
    Context context;    
    public Resources res;


    public DBadapter (Context context,List<Object> resource) {
        super(context,R.layout.grid_item_layout,resource);
        // TODO Auto-generated constructor stub
        this.context = context;
        this.modelItems = resource;             
    }

Hope it will help you.