在android应用程序的后台运行服务以检查网络连接

Question

For my app, I would like to have a service running at all times that the app is loaded that will be checking the availability of a network connection, and as soon as it realizes that a network connection is not available, send a message to the loaded activity so that I can replace the content view of that activity with one that simply states "Network Connection is not available". Then when the network connection comes back, have the activity receive another message so it can switch the content view back. I've looked through several posts on services, and would just like to inquire as the best way to go about this. Any tutorials or simple sample code would be awesome too!

Answer 1

Using a Service for that is not really the best solution. Better is using a BroadcastReceiver . You can add one programmatically as shown here , or in the manifest like here .