java - HeadsUp 的通知持续时间

Question

是否可以将 headsup 通知的持续时间设置为无限制？现在它只显示 5 秒。已经尝试过不同的事情，比如改变类别。但持续时间始终为 5 秒。

这是我的代码:

Notification notification =
            notificationBuilder
                    .setCategory(Notification.CATEGORY_CALL)
                    .setContentText("TKSE Werk Duisburg")
                    .setSmallIcon(R.drawable.ic_tk_individual_signet_logo)
                    .setOngoing(true)
                    .setAutoCancel(false)
                    .setVisibility(Notification.VISIBILITY_PUBLIC)
                    .setContentIntent(contentIntent)
                    .setCustomHeadsUpContentView(viewNotificationHeadsUp)                                                      .setCustomContentView(viewNotificationSmall)
                    .setPriority(Notification.PRIORITY_MAX)
                    .setVibrate(new long[20]).build();

在这个线程上尝试了同样的事情:Controlling Android Notification Duration for HeadsUp但这对我没有帮助。

有趣的事实: 在我的开发者手机上，三星 S5 mini -> 显示没有时间限制 在三星 S7 的另一台开发者手机上 -> 显示 5 秒

Answer 1

这应该有效。我为通知类别添加了额外的 onGoing(true) 和 category call。

   NotificationManager notificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
    String NOTIFICATION_CHANNEL_ID = "my_channel_id_01";

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "My Notifications", NotificationManager.IMPORTANCE_MAX);

        // Configure the notification channel.
        notificationChannel.setDescription("Channel description");
        notificationChannel.enableLights(true);
        notificationChannel.setLightColor(Color.RED);
        notificationChannel.setVibrationPattern(new long[]{0, 1000, 500, 1000});
        notificationChannel.enableVibration(true);
        notificationManager.createNotificationChannel(notificationChannel);
    }

    // assuming your main activity
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(MainActivity.this, NOTIFICATION_CHANNEL_ID);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, getIntent(), 0);
    notificationBuilder.setAutoCancel(true)
            .setDefaults(Notification.DEFAULT_ALL)
            .setCategory(Notification.CATEGORY_CALL)
            .setOngoing(true)
            .setWhen(System.currentTimeMillis())
            .setSmallIcon(R.drawable.ic_launcher)
            .setTicker("Hearty365")
            .setPriority(Notification.PRIORITY_MAX)
            .setContentTitle("Default notification")
            .setContentText("Lorem ipsum dolor sit amet, consectetur adipiscing elit.")
            .setFullScreenIntent(pendingIntent,true)
            .setContentInfo("Info");

    notificationManager.notify(/*notification id*/1, notificationBuilder.build());

附言。导入 android.app.Notification；用于设置通知类别(调用)

更新 Android 10

您需要为持续通知添加优先级和类别。

val fullScreenIntent = Intent(this, CallActivity::class.java)
val fullScreenPendingIntent = PendingIntent.getActivity(this, 0,
    fullScreenIntent, PendingIntent.FLAG_UPDATE_CURRENT)

val notificationBuilder =
        NotificationCompat.Builder(this, CHANNEL_ID)
    .setSmallIcon(R.drawable.notification_icon)
    .setContentTitle("Incoming call")
    .setContentText("(919) 555-1234")
    .setPriority(NotificationCompat.PRIORITY_HIGH)
    .setCategory(NotificationCompat.CATEGORY_CALL)

    // Use a full-screen intent only for the highest-priority alerts where you
    // have an associated activity that you would like to launch after the user
    // interacts with the notification. Also, if your app targets Android 10
    // or higher, you need to request the USE_FULL_SCREEN_INTENT permission in
    // order for the platform to invoke this notification.
    .setFullScreenIntent(fullScreenPendingIntent, true)

val incomingCallNotification = notificationBuilder.build()

Source