Android28--Android之Android的通知（Notification）使用详解

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1. 有关Notification的详解

http://www.2cto.com/kf/201502/374946.html

2. 案例

附上两个例子,,一个是开启一个通知, 另一个是开启一个服务,,甚至是主要代码:

 public void btnBormalNotify(View view) {        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);        // title, text, smallIcon 必须设置        builder.setContentTitle("通知")                .setContentText("内容")                .setSmallIcon(R.mipmap.ic_launcher);        // // 声音可以自定义        // Uri.fromFile()        // builder.setSound();        builder.setDefaults(Notification.DEFAULT_ALL);        Intent intent = new Intent(this, NewsActivity.class);        intent.putExtra("uri", "www.baidu.com");        // !!!使用通知的PendingIntent时，必须设置 Intent 的 FLAG, 针对于Activity        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);        PendingIntent pi =                PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);        builder.setContentIntent(pi);        Notification build = builder.build();        NotificationManagerCompat managerCompat = NotificationManagerCompat.from(this);        managerCompat.notify(998, build);    }    public void btnReceiver(View view) {        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);        builder.setContentTitle("通知")                .setContentText("内容")                .setSmallIcon(R.mipmap.ic_launcher);        builder.setDefaults(Notification.DEFAULT_ALL);        // !! 可以在通知中添加按钮点击操作        Intent intent = new Intent("com.xiaohong.ACTION_PLAY");        // 和在Intent里面设置Action同样的作用        //intent.setClassName(this, MyReceiver.class.getName());        // getBroadcast 内部会执行 sendBroadcast        PendingIntent piPlay                = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);        builder.addAction(android.R.drawable.ic_media_play, "播放", piPlay);        Notification build = builder.build();        NotificationManagerCompat from = NotificationManagerCompat.from(this);        from.notify(999, build);    }

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