Android Open Source - SubTweeter Status Adapter

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License

The source code is released under:

Apache License

Java Source Code

package com.henningta.subtweeter;
//from w ww .ja va2  s . c  o  m
import java.util.HashSet;
import java.util.Set;

import twitter4j.ResponseList;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

/** Custom adapter with options to select/highlight index */
public class StatusAdapter extends ArrayAdapter<twitter4j.Status> {

  private LayoutInflater inflater;
  private int resourceId;

  private HashSet<twitter4j.Status> checkedItems;

  private boolean multiMode;

  public StatusAdapter(Context context, int resourceId, ResponseList<twitter4j.Status> objects) {
    super(context, resourceId, objects);

    this.inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    this.resourceId = resourceId;

    this.checkedItems = new HashSet<twitter4j.Status>();
    this.multiMode = false;
  }

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

    ItemHolder holder = null;

    if (convertView == null) {
      // create new
      holder = new ItemHolder();
      convertView = inflater.inflate(resourceId, null);

      holder.name = (TextView)convertView.findViewById(R.id.status_name);
      holder.screenName = (TextView)convertView.findViewById(R.id.status_screenname);
      holder.text = (TextView)convertView.findViewById(R.id.status_text);

      convertView.setTag(holder);
    } else {
      // recycle
      holder = (ItemHolder)convertView.getTag();
    }

    twitter4j.Status status = this.getItem(position);

    holder.name.setText(status.getUser().getName());
    holder.screenName.setText("@" + status.getUser().getScreenName());
    holder.text.setText(status.getText());

    /* set default styles */
    //convertView.setBackgroundResource(R.drawable.event_selector_default);

    /* set checked state */
    /*if (checkedItems.contains(status)) {
      // if this item is checked
      convertView.getBackground().setState(new int[] { android.R.attr.state_checked });
    } else {
      // if this item is unchecked (notice the minus)
      convertView.getBackground().setState(new int[] { -android.R.attr.state_checked });
    }*/

    return convertView;
  }

  class ItemHolder {
    TextView name;
    TextView screenName;
    TextView text;
  }

  /** Begin multi-mode selection of items */
  public void enterMultiMode() {
    multiMode = true;
    notifyDataSetChanged();
  }

  /** Stop selecting items */
  public void exitMultiMode() {
    checkedItems.clear();
    multiMode = false;
    notifyDataSetChanged();
  }

  /** Set item at current position to checked or unchecked */
  public void setChecked(int position, boolean checked) {
    twitter4j.Status status = this.getItem(position);

    if (checked)
      checkedItems.add(status);
    else
      checkedItems.remove(status);

    if (multiMode)
      notifyDataSetChanged();
  }

  /** Return checked state of item at position */
  public boolean isChecked(int position) {
    return checkedItems.contains(this.getItem(position));
  }

  /** Toggle checked state of item at position */
  public void toggleChecked(int position) {
    final twitter4j.Status status = this.getItem(position);

    if (checkedItems.contains(status))
      checkedItems.remove(status);
    else
      checkedItems.add(status);

    notifyDataSetChanged();
  }

  /** Return number of checked items */
  public int getCheckedItemCount() {
    return checkedItems.size();
  }

  /** Return set of checked items */
  public Set<twitter4j.Status> getCheckedItems() {
    return checkedItems;
  }

}

Java Source Code List

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