定义自己的Notification状态栏通知

.xml布局代码

<span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent">


    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="send"
        android:onClick="send"
        android:id="@+id/button"/>

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="del"
        android:onClick="del"
        android:id="@+id/button6"
        />
</LinearLayout></span>

<span style="font-size:18px;">package com.example.lenovo.ui_one;


import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

/**
 * Created by lenovo on 2016/5/27.
 */

public class MyNotification extends AppCompatActivity {

    static final int NOTIFICATION_ID = 0x123;
    NotificationManager nm;

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

        //获取系统的NotificationManager服务
        nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    }

    public void send(View source){
        //创建一个启动其他Activity的Intent
        Intent intent = new Intent(MyNotification.this,otherActivity.class);
        PendingIntent pi = PendingIntent.getActivity(MyNotification.this,intent,0);

        Notification notify = new Notification.Builder(this)
                .setAutoCancel(true)
                .setTicker("有新消息")
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle("一条新通知")
                .setContentText("该睡觉了。")
                .setDefaults(Notification.DEFAULT_SOUND)
                .setWhen(System.currentTimeMillis())
                .setContentIntent(pi)
                .build();

        //发送通知
        nm.notify(NOTIFICATION_ID,notify);
    }

    //删除通知的按钮的点击事件

    public void del(View v)
    {
        nm.cancel(NOTIFICATION_ID);
    }


}</span>