Verify if iphone was connected to a dock

Question

When I connect the iphone to a dock my app display the message: "Conector dock". I want to detect when the phone is connected with other device and hide the MPVolumeView to avoid those messages.

I am using MPVolumeView as the usual:

MPVolumeView *myVolume = [[MPVolumeView alloc] initWithFrame:CGRectMake(10, 435, 300, 0)];
[myVolume sizeToFit];
[self.view addSubview:myVolume];
[myVolume release];

Could anyone help me?

Answer 1

I did that by adding the observers that follow:

NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter];
EAAccessoryManager *accessoryMamaner  = [EAAccessoryManager sharedAccessoryManager];

[accessoryMamaner registerForLocalNotifications];
[notificationCenter addObserver: self  selector: @selector (accessoryDidConnect:)   name: EAAccessoryDidConnectNotification object: nil];
[notificationCenter addObserver: self  selector: @selector (accessoryDidDisconnect:)   name: EAAccessoryDidDisconnectNotification object: nil];

Answer 2

You could monitor the battery state.

[[UIDevice currentDevice] setBatteryMonitoringEnabled:YES];

if ([[UIDevice currentDevice] batteryState] != UIDeviceBatteryStateUnplugged) {
    // if you end up in here, then you are connected to some power source
    // and you can hide your MPVolumeView
}

More information about the battery state can be found at Apple's UIDevice documentation.

Hope this helps!