Android--Notification

main.xml代码如下：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/mytext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="我的登录状态："/>

    <Spinner
        android:id="@+id/spinner"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

.java  代码如下：

package org.lxh.demo;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;

public class Hello extends Activity {
	private NotificationManager myNotification;
	private Spinner spinner;
	private ArrayAdapter<String>  myAdapter;
	private static final String[] status={"在线","离开","忙碌","马上回来","离线"};
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState); // 生命周期方法
		super.setContentView(R.layout.main); // 设置要使用的布局管理器
		this.myNotification=(NotificationManager)getSystemService(NOTIFICATION_SERVICE);
		this.myAdapter=new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,this.status);
		this.spinner=(Spinner)super.findViewById(R.id.spinner);
		this.spinner.setAdapter(myAdapter);
		this.spinner.setOnItemSelectedListener(new Item());

	}
	private class Item implements OnItemSelectedListener{

		

		private void setNotiType(int iconId, String text) {
			Intent notifyIntent=new Intent(Hello.this,Test.class);
			notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
			PendingIntent appIntent=PendingIntent.getActivity(Hello.this, 0, notifyIntent, 0);
			Notification noti=new Notification();
			noti.icon=iconId;
			noti.tickerText=text;
			noti.defaults=Notification.DEFAULT_SOUND;
			noti.setLatestEventInfo(Hello.this, "MSN登录状态", text, appIntent);
			myNotification.notify(0,noti);	
		}

		public void onItemSelected(AdapterView<?> parent, View v, int position,
				long id) {
			if(Hello.this.status[position].equals("在线")){
				setNotiType(R.drawable.msn,"在线");
			}else if(Hello.this.status[position].equals("离开")){
				setNotiType(R.drawable.away,"离开");
			}
			else if(Hello.this.status[position].equals("忙碌")){
				setNotiType(R.drawable.busy,"忙碌");
			}
			else if(Hello.this.status[position].equals("马上回来")){
				setNotiType(R.drawable.min,"马上回来");
			}
			else {
				setNotiType(R.drawable.offine,"离线");
			}
			
			
		}

		public void onNothingSelected(AdapterView<?> arg0) {
			
			
		}
		
	}
}

Test.java代码如下：

package org.lxh.demo;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Toast;

public class Test extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		
		super.onCreate(savedInstanceState);
		Toast.makeText(this, "这是模拟MSN切换登录状态的程序", Toast.LENGTH_SHORT);
		finish();
	}
	

}

配置权限：<activity  android:name=".Test"></activity>

运行如下：