ios - GCKDeviceManager 协议(protocol) - didDisconnectWithError : and didDisconnectFromApplicationWithError:? 之间有什么区别

Question

在 <GCKDeviceManagerDelegate> Protocol我看到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;

是deviceManager:didDisconnectWithError:如果 Chromecast 接收器断开连接或失去与应用程序的连接，则调用 deviceManager:didDisconnectFromApplicationWithError:当应用程序尝试断开与 Chromecast 接收器的连接时调用？

调用每个委托(delegate)方法的用例是什么？

Answer 1

发送方应用程序可以连接到转换设备，连接成功后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”是两个独立的操作，“停止接收器应用程序”和“断开”与转换设备的连接也是如此。因此，有这两种不同的方法。