这是可能的，以检查是否广播发送的固定模式？它可以被中止/删除吗？ [英] Is this possible to check if a broadcast was sent in sticky mode? Can it be aborted/removed?

问题描述

这是可能的，以检查是否广播发送的固定模式？

Is this possible to check if a broadcast was sent in sticky mode?

我们能完全中止/删除持久广播？如果是的话，那么能不能为正常进行，并下令节目？

Can we completely abort/remove a sticky broadcast? If yes, then can it be done for both normal and ordered broadcasts?

推荐答案

在的onReceive（）您可以使用下面的调用：

In onReceive() you can use the following calls:

isInitialStickyBroadcast（） - 这会告诉你，如果你正在处理被发送的粘性，是当前的广播时 BroadcastReceiver的注册。

isInitialStickyBroadcast() - This will tell you if the broadcast you are currently processing was sent as "sticky" and was the current one when the BroadcastReceiver was registered.

isOrderedBroadcast（） - 这会告诉你，如果你正在处理被送到作为广播一个有序的广播

isOrderedBroadcast() - This will tell you if the broadcast you are currently processing was sent as an "ordered" broadcast.

如果你只是想看看是否有粘性的广播，你可以叫

If you just want to see if there is a "sticky" broadcast, you can call

registerReceiver (BroadcastReceiver receiver, IntentFilter filter)

和供应空为接收参数。这将返回所有粘性广播没有实际注册的接收器。

and supply null as the receiver parameter. This will return any "sticky" broadcast without actually registering the receiver.

您可以使用删除持久广播消息：

You can remove a sticky broadcast using:

removeStickyBroadcast(Intent intent)

但是，恕我直言，这将是适得其反。通常粘性广播发送到指示的当前状态的东西。因此删除这将意味着，这是不可能的应用程序，以确定当前状态。

However, IMHO that would be counter-productive. Usually "sticky" broadcasts are sent to indicate the current state of something. So removing it would imply that it isn't possible for an application to determine the current state.

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