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 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考高分网。