Notification setLights() Default Value?

Question

我想创建一个自定义通知。所以我想改变灯光和色调。我使用NotificationCompat.Builder

现在我想通过setLights()改变灯光;工作很好。但是我想设置onMS和offMS的默认值。我没有找到有关的资料。

谁能帮我找到默认值?下面是相关文档:http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html#setLights(int, int, int)

Answer 1

查看Android源代码:

<!-- Default color for notification LED. -->
<color name="config_defaultNotificationColor">#ffffffff</color>
<!-- Default LED on time for notification LED in milliseconds. -->
<integer name="config_defaultNotificationLedOn">500</integer>
<!-- Default LED off time for notification LED in milliseconds. -->
<integer name="config_defaultNotificationLedOff">2000</integer>

但是不同的rom可能有不同的值。例如，对于config_defaultNotificationLedOff, mine返回5000。所以你可能想在运行时取回它们:

Resources resources = context.getResources(),
          systemResources = Resources.getSystem();
notificationBuilder.setLights(
    ContextCompat.getColor(context, systemResources
        .getIdentifier("config_defaultNotificationColor", "color", "android")),
    resources.getInteger(systemResources
        .getIdentifier("config_defaultNotificationLedOn", "integer", "android")),
    resources.getInteger(systemResources
        .getIdentifier("config_defaultNotificationLedOff", "integer", "android")));

根据diff，这些属性保证在Android 2.2+ (API level 8+)上存在

Answer 2

<p这没有帮助。我有公司图书馆的最新更新。但是Eclipse说build()不可用。我不知道为什么。文档说是的，而你…>

这是我当前的代码:

    NotificationCompat.Builder notify = new NotificationCompat.Builder(context);
    notify.setLights(Color.parseColor(led), 5000, 5000);
    notify.setAutoCancel(true);
    notify.setSound(Uri.parse(tone));
    notify.setSmallIcon(R.drawable.ic_stat_kw);
    notify.setContentTitle("Ttiel");
    notify.setContentText("Text");
    Intent showIntent = new Intent(context, Activity_Login.class);
    PendingIntent contentIntent = PendingIntent.getActivity(context, 0, showIntent, 0); 
    notify.setContentIntent(contentIntent);
    NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(0, notify.getNotification());

完美运行。但setLights()中的默认onMS和offMS不能:(

Answer 3

你应该可以这样做:

Notifictaion notf = new Notification.Builder(this).setXXX(...).....build();
notf.ledARGB = <your color>;
notf.ledOnMS = <your value>;  //or skip this line to use default
notf.ledOffMS = <your value>; //or skip this line to use default

基本上，不要在通知构建器上使用setLights。相反，首先构建通知-然后您可以访问灯光的各个字段。

更新:这是我的样本项目的实际复制/粘贴，它在android 2.1上编译和工作良好，并使用蓝色LED:

Notification notf = new NotificationCompat.Builder(this)
    .setAutoCancel(true)
    .setTicker("This is the sample notification")
    .setSmallIcon(R.drawable.my_icon)
    .build();
notf.ledARGB = 0xff0000ff;
NotificationManager mNotificationManager =
        (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(1, notf);