IMediaExtensionObserver
Extension event callback interface class.
onErrorWithContext
Occurs when the extension runs incorrectly.
virtual void onExtensionErrorWithContext(const ExtensionContext &context, int error, const char* message) {
(void)context;
(void)error;
(void)message;
}
In case of extension enabling failure or runtime errors, the extension triggers this callback and reports the error code along with the reasons.
Parameters
- context
- The context information of the extension, see ExtensionContext.
- error
- Error code. For details, see the extension documentation provided by the extension provider.
- message
- Reason. For details, see the extension documentation provided by the extension provider.
onEventWithContext
The event callback of the extension.
virtual void onExtensionEventWithContext(const ExtensionContext &context, const char* key, const char* value) {
(void)context;
(void)key;
(void)value;
}
To listen for events while the extension is running, you need to register this callback.
Parameters
- context
- The context information of the extension, see ExtensionContext.
- key
- The key of the extension.
- value
- The value of the extension key.
onStartedWithContext
Occurrs when the extension is enabled.
virtual void onExtensionStartedWithContext(const ExtensionContext &context) {
(void)context;
}
The callback is triggered after the extension is successfully enabled.
Parameters
- context
- The context information of the extension, see ExtensionContext.
onStoppedWithContext
Occurs when the extension is disabled.
virtual void onExtensionStoppedWithContext(const ExtensionContext &context) {
(void)context;
}
The callback is triggered after the extension is successfully disabled.
Parameters
- context
- The context information of the extension, see ExtensionContext.