External Accessory Framework連線

//方法一   跳出手動點選的連線視窗
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self CONTAINS 'MyString'"];

[[EAAccessoryManager sharedAccessoryManager] showBluetoothAccessoryPickerWithNameFilter:predicate completion:nil]


//方法二   程式回連
//先用這個取回現正連線的裝置，他會回傳NSArray
[[EAAccessoryManager sharedAccessoryManager]connectedAccessories ];
//然後在Array中取出你想連線的裝置
//最後用這個去打開session即可使用
_session = [[EASession alloc] initWithAccessory:_accessory forProtocol:MFI_BUNDLE_ID];