package com.example.ContextMenudemo2;


import java.util.ArrayList;

import android.app.ListActivity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;

import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import android.widget.Toast;


public class MainActivity extends ListActivity {
	private ArrayAdapter adapter = null;
	private ArrayList<String> list = null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		
		list = new ArrayList<String>();
		
		adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1,list);
		for(int i = 1;i<40;i++){
			list.add("微信訊息測試"+i);
		}
		this.setListAdapter(adapter);
		
		ListView lv = this.getListView();
		lv.setOnCreateContextMenuListener(this);
	}
	
	@Override
	public void onCreateContextMenu(ContextMenu menu, View v,
			ContextMenuInfo menuInfo) {
		menu.add(0, 1001, 1, "標記為未讀");
		menu.add(0, 1002, 1, "置頂聊天");
		menu.add(0, 1003, 1, "刪除該聊天");
		
		super.onCreateContextMenu(menu, v, menuInfo);
	}
	
	@Override
	public boolean onContextItemSelected(MenuItem item) {
		AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
		int pos = info.position;
		int id = item.getItemId();
		if(id==1003){
			list.remove(pos);
			adapter.notifyDataSetChanged();
			Toast.makeText(getApplicationContext(), "已刪除", Toast.LENGTH_SHORT).show();
		}
		if(id==1002){
			String s = list.get(pos);
			list.remove(pos);
			list.add(0, s);
			adapter.notifyDataSetChanged();
			Toast.makeText(getApplicationContext(), "置頂成功", Toast.LENGTH_SHORT).show();
		}
		
		return super.onContextItemSelected(item);
	}
	
	
}