Handling Seat Service Binding

During bootup, the interactive may need to bind to services. However, during this time, a service might not be completely installed yet and exceptions may be thrown if the interactive tries binding to it. If exceptions are not handled correctly, the interactive can crash.

To prevent this, the interactive needs to handle the exception and to periodically retry to bind. When the service is completely installed, Android will broadcast an android.intent.action.PACKAGE_ADDED intent with the service's package name. In the meantime, the interactive can listen for these broadcasts before trying to bind.

Exception Examples

The following provides examples of exceptions the interactive may encounter. For additional information on Android exceptions, refer to the Android API Reference.

IO Exception

Runtime exception the Seatback Application SDK may throw. For additional information, see IOException.

Example of a crash log displaying the exception:

10-19 02:50:50.664 27156 27413 E MsgSender: connect exception: Connection refused
10-19 02:50:50.664 27156 27413 E IOException: Connection refused
10-19 02:50:50.664 27156 27413 E AndroidRuntime: FATAL EXCEPTION: socketSender
10-19 02:50:50.664 27156 27413 E AndroidRuntime: Process: aero.panasonic.next.jal.seatback, PID: 27156
10-19 02:50:50.664 27156 27413 E AndroidRuntime: java.io.IOException: Transport endpoint is not connected
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at android.net.LocalSocketImpl.writeba_native(Native Method)
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at android.net.LocalSocketImpl.-wrap3(Unknown Source:0)
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at android.net.LocalSocketImpl$SocketOutputStream.write(LocalSocketImpl.java:144)
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at java.nio.channels.Channels$WritableByteChannelImpl.write(Channels.java:453)
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at aero.panasonic.inflight.services.contentdiscovery.v2.socketHandler.MsgSender.access$sendMsg(SourceFile:1074)
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at aero.panasonic.inflight.services.contentdiscovery.v2.socketHandler.MsgSender$CommonConst$JsonKey.handleMessage(SourceFile:191)
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106)
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at android.os.Looper.loop(Looper.java:164)
10-19 02:50:50.664 27156 27413 E AndroidRuntime: at android.os.HandlerThread.run(HandlerThread.java:65)
10-19 02:50:50.664 27156 27156 D a.p.n.j.s.p. NextMediaPlayerBase: playlist changed -> current item: MediaItem(id=31582, path=pac_t

Security Exception

Runtime exception that the InFlight remote service may throw. For additional information on this exception, refer to bindService and SecurityException.

In this following example of a crash log, the IOException is thrown because aero.panasonic.inflight.remote.service has not been installed yet:

10-30 19:57:14.137 24130 24539 W ActivityManager: Permission 
Denial: Accessing service 
ComponentInfo{aero.panasonic.inflight.app.seatback/aero.panasonic.inflight.services.ifeservice.IfeService} from pid=23903, uid=10080 requires aero.panasonic.inflight.permission.ACCESS_IFESERVICE  
10-30 19:57:14.138 23903 23903 D AndroidRuntime: Shutting down VM  
10-30 19:57:14.138 23903 23903 E AndroidRuntime: FATAL EXCEPTION: main  
10-30 19:57:14.138 23903 23903 E AndroidRuntime: Process: aero.panasonic.next.jal.seatback, PID: 23903 10-30 19:57:14.138 23903 23903 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{aero.panasonic.next.jal.seatback/aero.panasonic.next.jal.seatback.MainActivity}: java.lang.SecurityException: Not allowed to bind to service Intent { act=aero.panasonic.inflight.remote.service pkg=aero.panasonic.inflight.app.seatback } 
10-30 19:57:14.138 23903 23903 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.j ava:2781) 10-30 19:57:14.138 23903 23903 E AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.ja va:2859)
10-30 19:57:14.138 23903 23903 E AndroidRuntime: at android.app.ActivityThread.-wrap11(Unknown Source:0)

Build# 20220627.3