MasterChooser onBackPressed Pause

[stratomda]

The ROS application is "paused" when the user navigates back from the MasterChooser application. This fixes #266.

[adamantivm]

For my clarification, what is the resulting behavior of this? I would imagine something like this:

• Use starts app
• Master chooser shows up
• User clicks 'connect'
• User clicks 'back' button before connect succeeded
• Application gets 'minimized' <-- this is new
• If the user clicks on the app again, then the master chooser is brought up again in its 'trying to connect' state
• After connect is successful, then the app switches to the main activity

Is this correct?

Could you confirm that these use cases work properly?

• hit 'back' while master chooser is connecting and then open app again. what happens? Does the connect complete then?
• hit 'back' while master chooser is connecting and then wait. Open app again after the connection should have been successful.

[stratomda]

@adamantivm You are correct in your use case. I have tested the two use cases and they work properly. I pressed back during connection and opened the app again. The connection completed and the MainActivity was displayed. I also tested when you click back during connection and waited for the connection to succeed (in the background). When you open up the app the MainActivity is displayed.