问题描述

SlideExpandableListView适配器改变时，未通知到Activity

The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread but only from the UI thread. [in ListView(2131230834 class com.wlyc.warehousechampions.ui.views.slideexpandable.ActionSlideExpandableListView) with Adapter(class com.wlyc.warehousechampions.ui.views.slideexpandable.SlideExpandableListAdapter)]

package com.wlyc.warehousechampions.ui.views.slideexpandable;

import com.wlyc.warehousechampions.R;

import android.view.View;
import android.widget.ListAdapter;

/**

• ListAdapter that adds sliding functionality to a list.
• Uses R.id.expandalbe_toggle_button and R.id.expandable id's if no
• ids are given in the contructor.*
• @author tjerk
• @date 6/13/12 8:04 AM
  */
  public class SlideExpandableListAdapter extends AbstractSlideExpandableListAdapter {
  private int toggle_button_id;
  private int expandable_view_id;

  public SlideExpandableListAdapter(ListAdapter wrapped int toggle_button_id int expandable_view_id) {
  super(wrapped);
  this.toggle_button_id = toggle_button_id;
  this.expandable_view_id = expandable_view_id;
  }

  public SlideExpandableListAdapter(ListAdapter wrapped) {
  this(wrapped R.id.expandable_toggle_button R.id.expandable);
  }

  @Override
  public View getExpandToggleButton(View parent) {
  return parent.findViewById(toggle_button_id);
  }

  @Override
  public View getExpandableView(View parent) {
  return parent.findViewById(expandable_view_id);
  }
  }

package com.wlyc.warehousechampions.ui.views.slideexpandable;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;

/**

• A more specific expandable listview in which the expandable area
• consist of some buttons which are context actions for the item itself.*
• It handles event binding for those buttons and allow for adding
• a listener that will be invoked if one of those buttons are pressed.*
• @author tjerk
• @date 6/26/12 7:01 PM
  */
  public class ActionSlideExpandableListView extends SlideExpandableListView {
  private OnActionClickListener listener;
  private int[] buttonIds = null;

  public ActionSlideExpandableListView(Context context) {
  super(context);
  }

  public ActionSlideExpandableListView(Context context AttributeSet attrs) {
  super(context attrs);
  }

  public ActionSlideExpandableListView(Context context AttributeSet attrs int defStyle) {
  super(context attrs defStyle);
  }

  public void setItemActionListener(OnActionClickListener listener int ... buttonIds) {
  this.listener = listener;
  this.buttonIds = buttonIds;
  }

  /**

  • Interface for callback to be invoked whenever an action is clicked in
  • the expandle area of the list item./public interface OnActionClickListener {/*
    • Called when an action item is clicked.*
    • @param itemView the view of the list item
    • @param clickedView the view clicked
    • @param position the position in the listview*/public void onClick(View itemView View clickedView int position);}

  public void setAdapter(ListAdapter adapter) {
  super.setAdapter(new WrapperListAdapterImpl(adapter) {

      @Override    public View getView(final int position View view ViewGroup viewGroup) {        final View listView = wrapped.getView(position view viewGroup);        // add the action listeners        if(buttonIds != null && listView!=null) {            for(int id : buttonIds) {                View buttonView = listView.findViewById(id);                if(buttonView!=null) {                    buttonView.findViewById(id).setOnClickListener(new OnClickListener() {                        @Override                        public void onClick(View view) {                            if(listener!=null) {                                listener.onClick(listView view position);                            }                        }                    });                }            }        }        return listView;    }});

  }
  }