Android notifications通知栏的使用

app发送通知消息到通知栏中的关键代码和点击事件:

package com.example.notifications;

import android.os.Bundle;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;
import android.view.Menu;
import android.view.View; public class MainActivity extends Activity { public static final int notifi_id=0x1;
public static final int notifi_id2=0x2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); } public void sendNotifi(View v){
NotificationCompat.Builder builder=new NotificationCompat.Builder(this);
builder.setSmallIcon(R.drawable.ic_launcher);
builder.setContentTitle("您有一条新消息");
builder.setContentText("新年快乐!");
builder.setTicker("新消息");
builder.setDefaults(Notification.DEFAULT_ALL);
//builder.setAutoCancel(true);
Intent intent=new Intent(this,Second.class);
PendingIntent pi=PendingIntent.getActivity(this, , intent, PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(pi);
//builder.setOngoing(true);//常驻通知
//创建一个对象通知
Notification n=builder.build();
//获取系统的通知管理器,然后发送通知
NotificationManager nm=(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
nm.notify(notifi_id,n);
} public void sendNotifi2(View v){
NotificationCompat.Builder builder=new NotificationCompat.Builder(this);
builder.setSmallIcon(R.drawable.ic_launcher);
/*builder.setContentTitle("您有一条新消息");
builder.setContentText("新年快乐!");*/ //设置大图样式
NotificationCompat.InboxStyle style=new NotificationCompat.InboxStyle();
style.setBigContentTitle("大通知");
style.addLine("冬天");
style.addLine("下雪了");
builder.setStyle(style);
Notification n=builder.build();
NotificationManager nm=(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
nm.notify(notifi_id2,n);
} }
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