很久没有使用Android的通知功能了，今天把两年前的代码搬出来一看，发现很多方法都废弃了，代码中各种删除线看的十分不爽。于是乎，打开Google，查看官方文档，学习最新的发送通知栏消息的方法。
本文中的代码均参照谷歌官方文档编写：
http://developer.android.com/guide/topics/ui/notifiers/notifications.html
1.首先，获取系统的通知服务：
NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);2.发送一个最简单的通知
public void simpleNotice(View view) {
//此Builder为android.support.v4.app.NotificationCompat.Builder中的，下同。
Builder mBuilder = new Builder(this);
//系统收到通知时，通知栏上面显示的文字。
mBuilder.setTicker("天津，晴，2～15度，微风");
//显示在通知栏上的小图标
mBuilder.setSmallIcon(R.drawable.consult_answer);
//通知标题
mBuilder.setContentTitle("天气预报");
//通知内容
mBuilder.setContentText("天津，晴，2～15度，微风");
//设置大图标，即通知条上左侧的图片（如果只设置了小图标，则此处会显示小图标）
mBuilder.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.share_sina));
//显示在小图标左侧的数字
mBuilder.setNumber(6);
//设置为不可清除模式
mBuilder.setOngoing(true);
//显示通知，id必须不重复，否则新的通知会覆盖旧的通知（利用这一特性，可以对通知进行更新）
nm.notify(1, mBuilder.build());
}3.删除一个通知。参数即为通知的idnm.cancel(1);4.发送一个通知，点击通知后跳转到一个Activity，从这个Activity返回后，进入程序内的某一个页面（一般为主页）
//点击通知进入一个Activity，点击返回时进入指定页面。
public void resultActivityBackApp(View view) {
Builder mBuilder = new Builder(this);
mBuilder.setTicker("通知标题2");
mBuilder.setSmallIcon(R.drawable.ic_launcher);
mBuilder.setContentTitle("通知标题2");
mBuilder.setContentText("点击通知进入一个Activity，点击返回时进入指定页面。");
//设置点击一次后消失（如果没有点击事件，则该方法无效。）
mBuilder.setAutoCancel(true);
//点击通知之后需要跳转的页面
Intent resultIntent = new Intent(this, ResultActivityBackApp.class);
//使用TaskStackBuilder为“通知页面”设置返回关系
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
//为点击通知后打开的页面设定 返回 页面。（在manifest中指定）
stackBuilder.addParentStack(ResultActivityBackApp.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent pIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(pIntent);
// mId allows you to update the notification later on.
nm.notify(2, mBuilder.build());
}同时，需要在manifest中为点击通知后打开的Activity指定父Activity.
<activity
android:name=".ResultActivityBackApp"
android:parentActivityName=".MainActivity">
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".MainActivity" />
</activity>(其中，activity的属性parentActivityName为API 16中的属性，meta-data中的代码为兼容API 16以下。因此，对于大多数程序，这两个地方都得写。)
5.和上述4类似，只是在打开的Activity中返回时回到home页
//点击通知进入一个Activity，点击返回时回到桌面
public void resultActivityBackHome(View view) {
Builder mBuilder = new Builder(this);
mBuilder.setTicker("通知标题3");
mBuilder.setSmallIcon(R.drawable.ic_launcher);
mBuilder.setContentTitle("通知标题3");
mBuilder.setContentText("点击通知进入一个Activity，点击返回时回到桌面");
//设置点击一次后消失（如果没有点击事件，则该方法无效。）
mBuilder.setAutoCancel(true);
Intent notifyIntent = new Intent(this, ResultActivityBackHome.class);
notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, notifyIntent, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(pIntent);
nm.notify(3, mBuilder.build());
}6.带进度条的通知
public void progressNotice(View view) {
final Builder mBuilder = new Builder(this);
mBuilder.setTicker("通知标题4");
mBuilder.setContentTitle("Picture Download")
.setContentText("Download in progress")
.setSmallIcon(R.drawable.ic_launcher);
// Start a lengthy operation in a background thread
new Thread(new Runnable() {
@Override
public void run() {
int progress;
for (progress = 0; progress <= 100; progress++) {
// Sets the progress indicator to a max value, the current completion percentage,
// and "determinate" state
mBuilder.setProgress(100, progress, false);
//不明确进度的进度条
// mBuilder.setProgress(0, 0, true);
nm.notify(4, mBuilder.build());
// 模拟延时
try {
Thread.sleep(200);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
// When the loop is finished, updates the notification
mBuilder.setContentText("Download complete");
// Removes the progress bar
mBuilder.setProgress(0, 0, false);
nm.notify(4, mBuilder.build());
}
}
).start();
}7.扩展布局的通知。按住通知条下滑，可以查看更详细的内容
public void expandLayoutNotice(View view) {
Builder mBuilder = new Builder(this);
mBuilder.setTicker("通知标题5");
mBuilder.setSmallIcon(R.drawable.ic_launcher);
mBuilder.setContentTitle("通知标题5");
mBuilder.setContentText("按住通知下拉可显示扩展布局");
NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();
String[] events = new String[]{"Beijing", "Tianjin", "Shanghai", "Guangzhou"};
// 设置扩展布局的标题
inboxStyle.setBigContentTitle("Event tracker details:");
for (String s : events) {
inboxStyle.addLine(s);
}
mBuilder.setStyle(inboxStyle);
nm.notify(5, mBuilder.build());
}//自定义布局的通知
public void customLayoutNotice(View view) {
Builder mBuilder = new Builder(this);
mBuilder.setTicker("通知标题6");
mBuilder.setTicker("通知标题6");
mBuilder.setSmallIcon(R.drawable.ic_launcher);
RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.custom_layout_notice);
mBuilder.setContent(remoteViews);
//为RemoteViews上的按钮设置文字
remoteViews.setCharSequence(R.id.custom_layout_button1, "setText", "Button1");
remoteViews.setCharSequence(R.id.custom_layout_button2, "setText", "Button2");
//为RemoteViews上的按钮设置点击事件
Intent intent1 = new Intent(this, CustomLayoutResultActivity.class);
intent1.putExtra("content", "From button1 click!");
PendingIntent pIntentButton1 = PendingIntent.getActivity(this, 0, intent1, PendingIntent.FLAG_UPDATE_CURRENT);
remoteViews.setOnClickPendingIntent(R.id.custom_layout_button1, pIntentButton1);
Intent intent2 = new Intent(this, CustomLayoutResultActivity.class);
intent2.putExtra("content", "From button2 click!");
PendingIntent pIntentButton2 = PendingIntent.getActivity(this, 1, intent2, PendingIntent.FLAG_UPDATE_CURRENT);
remoteViews.setOnClickPendingIntent(R.id.custom_layout_button2, pIntentButton2);
nm.notify(6, mBuilder.build());
}原文地址：http://blog.csdn.net/books1958/article/details/41207435
