Question

我有一些代码创建一些通知, 这是非常基本的。

int icon = R.drawable.notification;
CharSequence tickerText = "Text";
long when = System.currentTimeMillis();
Notification notification = new Notification(icon, tickerText, when);

Context context = getApplicationContext();
CharSequence contentTitle = "Text";
CharSequence contentText = "Text";
Intent notificationIntent = new Intent(this, RequestActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
notification.flags |= Notification.DEFAULT_SOUND;
notification.flags |= Notification.DEFAULT_VIBRATE;
notification.flags |= Notification.DEFAULT_LIGHTS;
notification.flags |= Notification.FLAG_AUTO_CANCEL;

mNotificationManager.notify(notificationID, notification);

It all works fine in 2.1. In 4.0, it all works fine except the swipe-to-dismiss action doesn t work. The notification goes slightly to the side then sticks and bounces back. Any idea? Thanks.

Answer 1

你无法删除你的通知, 因为它是在一个"未定"的国家。

<强> 首先解决问题:

用以下代码取代设置标记 :

notification.defaults |= Notification.DEFAULT_SOUND;
notification.defaults |= Notification.DEFAULT_VIBRATE;
notification.defaults |= Notification.DEFAULT_LIGHTS;
notification.flags |= Notification.FLAG_AUTO_CANCEL;

默认值为默认区划, 标记区划的标记值为默认区划。

“强”和“强”是为什么它还在持续?“/强”

您可能已经知道通知的旗帜( 和默认) 是由 < a href=" http:// en.wikipedia. org/ wiki/ Bitwise_ Operation > > bittwise operation 设置的。表示每面旗帜的常值是 2 的功率。添加这些旗帜后, 将产生一套旗帜的独特编号, 从而能够真正快速地计算实际设置的旗帜。

Notification.DEFAULT_VIBRATE and Notification.FLAG_ONGOING_EVENT have the same contant value of 2.

Answer 2

您应该使用 setOnway(bolean 进行中)

Set whether this is an "ongoing" notification. Ongoing notifications cannot be dismissed by the user, so your application or service must take care of canceling them. They are typically used to indicate a background task that the user is actively engaged with (e.g., playing music) or is pending in some way and therefore occupying the device (e.g., a file download, sync operation, active network connection).

您可以使用

.setOngoing(false);

Answer 3

只需插入此行, 当您发出通知...

// Will show lights and make the notification disappear when the presses it
notification.flags == Notification.FLAG_AUTO_CANCEL | Notification.FLAG_SHOW_LIGHTS;

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