现在我已经发现为什么的onReceive（）被调用时，点击按钮启用两次/禁用网络。 1.第一次被调用时， APPWIDGET_UPDATE 意图广播。 2，第二次它被调用时， CONNECTIVITY_CHANGE 意图广播。

Now I have discovered why onReceive() gets called twice when button is clicked to enable/disable the network. 1. First time it gets called when APPWIDGET_UPDATE intent broadcasts. 2. Second time it gets called when CONNECTIVITY_CHANGE intent broadcasts.

反正我可以更新从广播接收器的小部件，源$ C ​​$ C已被张贴在上面的帖子。

Anyway I am able to update the widget from Broadcast receiver, the source code has been posted in the above post.