Android Notification调用测试LED展示_Android

Android Notification调用测试LED显示

Notification可以在屏幕最顶部的状态栏上显示一个图标通知（QQ用的就是这个），通知的同时可以播放声音，以及振动提示用户,点击通知还可以返回指定的Activity.
今天例子的效果图：

布局main.xml:

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01<?xml version="1.0" encoding="utf-8"?>
02<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
03????android:orientation="vertical"
04????android:layout_width="fill_parent"
05????android:layout_height="fill_parent"
06????>
07<Button android:id="@+id/bt1"
08????android:layout_height="wrap_content"
09????android:layout_width="fill_parent"
10????android:text="Notification测试"
11/>
12<Button android:id="@+id/bt2"
13????android:layout_height="wrap_content"
14????android:layout_width="fill_parent"
15????android:text="清除Notification"
16/>
17</LinearLayout> <br>

就两个按钮，一个添加Notification，一个删除Notification

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01package com.pocketdigi.Notification;
02??
03import android.app.Activity;
04import android.app.Notification;
05import android.app.NotificationManager;
06import android.app.PendingIntent;
07import android.content.Intent;
08import android.os.Bundle;
09import android.view.View;
10import android.view.View.OnClickListener;
11import android.widget.Button;
12??
13public class main extends Activity {
14????/** Called when the activity is first created. */
15????int notification_id=19172439;
16????NotificationManager nm;
17????@Override
18????public void onCreate(Bundle savedInstanceState) {
19????????super.onCreate(savedInstanceState);
20????????setContentView(R.layout.main);
21????????nm=(NotificationManager)getSystemService(NOTIFICATION_SERVICE);
22????????Button bt1=(Button)findViewById(R.id.bt1);
23????????bt1.setOnClickListener(bt1lis);
24????????Button bt2=(Button)findViewById(R.id.bt2);
25????????bt2.setOnClickListener(bt2lis);
26??
27????}
28????OnClickListener bt1lis=new OnClickListener(){
29??
30????????@Override
31????????public void onClick(View v) {
32????????????// TODO Auto-generated method stub
33????????????showNotification(R.drawable.home,"图标边的文字","标题","内容");
34????????}
35??
36????};
37????OnClickListener bt2lis=new OnClickListener(){
38??
39????????@Override
40????????public void onClick(View v) {
41????????????// TODO Auto-generated method stub
42????????????//showNotification(R.drawable.home,"图标边的文字","标题","内容");
43????????????nm.cancel(notification_id);
44????????}
45??
46????};
47????public void showNotification(int icon,String tickertext,String title,String content){
48????????//设置一个唯一的ID，随便设置
49??
50????????//Notification管理器
51????????Notification notification=new Notification(icon,tickertext,System.currentTimeMillis());
52????????//后面的参数分别是显示在顶部通知栏的小图标，小图标旁的文字（短暂显示，自动消失）系统当前时间（不明白这个有什么用）
53????????notification.defaults=Notification.DEFAULT_ALL; 
54????????//这是设置通知是否同时播放声音或振动，声音为Notification.DEFAULT_SOUND
55????????//振动为Notification.DEFAULT_VIBRATE;
56????????//Light为Notification.DEFAULT_LIGHTS，在我的Milestone上好像没什么反应
57????????//全部为Notification.DEFAULT_ALL
58????????//如果是振动或者全部，必须在AndroidManifest.xml加入振动权限
59????????PendingIntent pt=PendingIntent.getActivity(this, 0, new Intent(this,main.class), 0);
60????????//点击通知后的动作，这里是转回main 这个Acticity
61????????notification.setLatestEventInfo(this,title,content,pt);
62????????nm.notify(notification_id, notification);
63??
64????}
65}

AndroidManifest.xml加入权限：

`1`	`<uses-permission android:name="android.permission.VIBRATE"` `/>`

`2`	`<!-- 允许振动 -->`