Android 8.0实现发送通知

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 channelmediaChannel )); }}

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好吧啦网。