Xamarin：ConnectivityManager.ConnectivityAction和BluetoothAdapter.ACTION_STATE_CHANGED之间不同

Question

I wanted to know what is the different between ConnectivityAction and Action_State_Change.

At the moment, I am having a broadcastReceiver which listen to ConnectivityAction to check the wifi enable/disable state. In addition, I used ConnectivityAction to listen Bluetooth enable/disable state.

In Action_State_Change, I can do the same to detect enable/disable the Bluetooth by checking the intent State_On.

The difference I have between ConnectivityAction and Action_State_Change is: When I register ConnectivityAction in onStart and unregister it in onStop in my Activity, then when user select the enable/disable in setting screen, the receiver still receive the message. On the other hand, if I used Action_State_Change, if the user select the enable/disable in setting screen, my broadcast receiver with Action_State_Change won't receive the message.

What is the different between the two Action Filter.

Answer 1

CONNECTIVITY_ACTION - A change in network connectivity has occurred.

ACTION_STATE_CHANGE - Broadcast Action: The state of the local Bluetooth adapter has been changed.

The first applies to any network change, the second specifically to the Bluetooth adapter