026 Android 通知(Notification)

1.介绍

2.常用属性

3.java后台代码

package com.lucky.test30notification;

import android.app.Notification;
import android.app.NotificationManager;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    Button button1;
    Button button2;
    NotificationManager notificationManager; //定义一个通知管理器
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button1=findViewById(R.id.button);
        button2=findViewById(R.id.button2);
        //实例化通知管理器
        notificationManager= (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

        button1.setOnClickListener(new View.OnClickListener() {
            @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
            @Override
            public void onClick(View v) {
                Notification.Builder builder=new Notification.Builder(MainActivity.this);
                builder.setSmallIcon(R.mipmap.img07); //设置图标
                builder.setTicker("新消息");//消息来时的提示内容
                builder.setContentTitle("新通知");//设置通知题目
                builder.setContentText("虎扑ios上线了");//设置通知内容
                builder.setDefaults(Notification.DEFAULT_ALL);//设置默认格式
                notificationManager.notify(0x01,builder.build());


            }
        });

        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                notificationManager.cancel(0x01); //取消通知
            }
        });
    }
}

 4.效果图

对应工程名：test30