android– 无法在频道上发布通知“null”目标Api是26

概述两个日志显示1：对于音量控制以外的 *** 作,不推荐使用流类型2：请参阅setSound()的文档,了解使用什么来代替android.media.AudioAttributes来限定播放用例解决方法:WhenyoutargetAndroid8.0(APIlevel26),youmustimplementoneormorenotificationchannelstodisplayn

两个日志显示

1：对于音量控制以外的 *** 作,不推荐使用流类型

2：请参阅setSound()的文档,了解使用什么来代替android.media.AudioAttributes来限定播放用例

解决方法:

When you target AndroID 8.0 (API level 26), you must implement one or more notification channels to display notifications to your users.

int NOTIFICATION_ID = 234;    notificationmanager notificationmanager = (notificationmanager) ctx.getSystemService(Context.NOTIFICATION_SERVICE);    if (androID.os.Build.VERSION.SDK_INT >= androID.os.Build.VERSION_CODES.O) {        String CHANNEL_ID = "my_channel_01";        CharSequence name = "my_channel";        String Description = "This is my channel";        int importance = notificationmanager.importANCE_HIGH;        NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);        mChannel.setDescription(Description);        mChannel.enablelights(true);        mChannel.setlightcolor(color.RED);        mChannel.enableVibration(true);        mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});        mChannel.setShowBadge(false);        notificationmanager.createNotificationChannel(mChannel);    }    NotificationCompat.Builder builder = new NotificationCompat.Builder(ctx, CHANNEL_ID)            .setSmallicon(R.mipmap.ic_launcher)            .setContentTitle(Title)            .setContentText(message);    Intent resultIntent = new Intent(ctx, MainActivity.class);    TaskStackBuilder stackBuilder = TaskStackBuilder.create(ctx);    stackBuilder.addParentStack(MainActivity.class);    stackBuilder.addNextIntent(resultIntent);    PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);    builder.setContentIntent(resultPendingIntent);    notificationmanager.notify(NOTIFICATION_ID, builder.build());

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