Android通知

activity_main.xml:

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

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="发送通知"
        android:onClick="send"
        />





</LinearLayout>

MianActivity：

package com.zking.administrator.g160628_android29_alarm_notification;

import android.app.AlarmManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TimePickerDialog;
import android.content.Context;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.app.NotificationCompat;
import android.view.View;
import android.widget.TimePicker;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

    private AlarmManager am;
    private PendingIntent pendingIntent;
    private NotificationManager notificationManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


    public void send(View view){
         //实例化通知
        NotificationCompat.Builder builder=new NotificationCompat.Builder(this);
        builder.setContentTitle("提示");
        builder.setContentText("中奖啦！请先汇款到XXX账号激活");
        builder.setSmallIcon(android.R.drawable.star_on);
        builder.setDefaults(NotificationCompat.DEFAULT_ALL);
        builder.setAutoCancel(true);
//      builder.setContentIntent()
//        builder.setCustomContentView()
        Notification notification=builder.build();

        //发送通知
        notificationManager.notify(0x101,notification);
    }




}