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更新系统广播意图的小部件

[英]Update Widget on System Broadcast Intent

原文 2010-07-11 20:34:23 9 1 android/ android-widget/ android-intent

I'm working on an Android widget that will show the current network state (ie 1xRTT, EvDo Rev. A, WiMax, etc.). 我正在使用一个Android小部件，它将显示当前的网络状态（即1xRTT，EvDo Rev. A，WiMax等）。 It may seem like a pointless idea, but for whatever the reason, the Evo doesn't differentiate between 1x & EvDo, it just says 3G for both, which is annoying if you're in a fringe 3G area. 这看起来似乎是没有意义的想法，但是无论出于何种原因，Evo都不会在1x和EvDo之间进行区分，只是对两者都说3G，如果您处于边缘3G区域，这将很烦人。

Anyways, to the point: I have the widget complete and it updates with the current network just fine, but how can I make it update whenever the connection changes? 无论如何，要点是：我已经完成了小部件，并且可以使用当前网络进行更新，但是只要连接发生更改，如何使它更新？ I know I can use a BroadcastReceiver to catch the ConnectivityManager.CONNECTIVITY_ACTION intent the system sends on a connection change. 我知道我可以使用BroadcastReceiver来捕获系统在连接更改时发送的ConnectivityManager.CONNECTIVITY_ACTION意图。 How can I update the widget from there? 如何从那里更新小部件？

Or can I use the AppWidgetProvider to catch the intent and then update? 还是可以使用AppWidgetProvider捕获意图然后进行更新？

I know how to catch the intent, I just don't know how to update the widget once I do. 我知道如何捕捉意图，我只是不知道如何更新小部件。

1 个解决方案

Or can I use the AppWidgetProvider to catch the intent and then update? 还是可以使用AppWidgetProvider捕获意图然后进行更新？

That should work. 那应该工作。 You will need to override onReceive() , look for CONNECTIVITY_ACTION Intents , handle those yourself, and chain to the superclass for the default behavior. 您将需要重写onReceive() ，查找CONNECTIVITY_ACTION Intents ，自己处理，然后链接到超类以获得默认行为。