GCKDeviceManager协议- didDisconnectWithError:和didDisconnectFromApplicationWithError:？

Question

在 Protocol中，我看到了两种非常相似的方法：

/**
 * Called when the connection to the device has been terminated. It is safe to release the
 * GCKDeviceManager object from within this callback.
 *
 * @param deviceManager The device manager.
 * @param error The error that caused the disconnection; nil if there was no error (e.g. intentional
 * disconnection).
 */
- (void)deviceManager:(GCKDeviceManager *)deviceManager
    didDisconnectWithError:(NSError *)error;

和

/**
 * Called when disconnected from the current application.
 *
 * @param deviceManager The device manager.
 * @param error The error that caused the disconnect, or <code>nil</code> if this was a normal
 * disconnect.
 */
- (void)deviceManager:(GCKDeviceManager *)deviceManager
    didDisconnectFromApplicationWithError:(NSError *)error;

如果Chromecast接收器断开或失去与应用程序的连接，是否调用deviceManager:didDisconnectWithError:？当应用程序试图断开与Chromecast接收器的连接时，deviceManager:didDisconnectFromApplicationWithError:是否调用？

当每个委托方法被调用时，用例是什么？

Answer 1

发送方应用程序可以连接到转换设备，并且在成功连接时，可以在转换设备上启动接收方应用程序。因此，“连接到设备”和“运行应用程序”是两个不同的操作，“停止接收应用程序”和“断开”转换设备也是如此。因此，有这两种不同的方法。