在Android8.0以后，针对Notification 通知api做了修改，新增了通知渠道（NotificationCannel)。下面就把demo的详细代码记录下：

1.Application 为NotificationManager添加通知频道

import android.app.Application;import com.xinrui.ndkapp.notification.NotificationChannels;public class NdkApplication extends Application { @Override public void onCreate() { super.onCreate(); NotificationChannels.createAllNotificationChannels(this); }}

2.NotificationChannels 类

public class NotificationChannels { public final static String CRITICAL = "critical"; public final static String IMPORTANCE = "importance"; public final static String DEFAULT = "default"; public final static String LOW = "low"; public final static String MEDIA = "media"; public static void createAllNotificationChannels(Context context) { NotificationManager nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); if(nm == null) { return; } NotificationChannel mediaChannel = new NotificationChannel( MEDIA, context.getString(R.string.app_name), NotificationManager.IMPORTANCE_DEFAULT); mediaChannel.setSound(null,null); mediaChannel.setVibrationPattern(null); nm.createNotificationChannels(Arrays.asList( new NotificationChannel( CRITICAL, context.getString(R.string.app_name), NotificationManager.IMPORTANCE_HIGH), new NotificationChannel( IMPORTANCE, context.getString(R.string.app_name), NotificationManager.IMPORTANCE_DEFAULT), new NotificationChannel( DEFAULT, context.getString(R.string.app_name), NotificationManager.IMPORTANCE_LOW), new NotificationChannel( LOW, context.getString(R.string.app_name), NotificationManager.IMPORTANCE_MIN), //custom notification channel mediaChannel )); }}

3.发送通知

public void sendSimpleNotification(Context context, NotificationManager nm) { //创建点击通知时发送的广播 Intent intent = new Intent(context, NotificationMonitorService.class); intent.setAction("android.service.notification.NotificationListenerService"); PendingIntent pi = PendingIntent.getService(context,0,intent,0); //创建删除通知时发送的广播 Intent deleteIntent = new Intent(context,NotificationMonitorService.class); deleteIntent.setAction(Intent.ACTION_DELETE); PendingIntent deletePendingIntent = PendingIntent.getService(context,0,deleteIntent,0); //创建通知 Notification.Builder nb = new Notification.Builder(context, NotificationChannels.DEFAULT) //设置通知左侧的小图标 .setSmallIcon(R.drawable.ic_notification) //设置通知标题 .setContentTitle("Simple notification") //设置通知内容 .setContentText("Demo for simple notification!") //设置点击通知后自动删除通知 .setAutoCancel(true) //设置显示通知时间 .setShowWhen(true) //设置通知右侧的大图标 .setLargeIcon(BitmapFactory.decodeResource(context.getResources(),R.drawable.ic_notifiation_big)) //设置点击通知时的响应事件 .setContentIntent(pi) //设置删除通知时的响应事件 .setDeleteIntent(deletePendingIntent); //发送通知 nm.notify(Notificaitons.NOTIFICATION_SAMPLE,nb.build()); }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。