1| Change Type | Old Version | New Version | d.ts File | 2| ---- | ------ | ------ | -------- | 3|Added|NA|Module name: ohos.stationary<br>Class name: stationary|@ohos.stationary.d.ts| 4|Added|NA|Module name: ohos.stationary<br>Class name: ActivityType<br>Method or attribute name: type ActivityType = 'still' \| 'relativeStill';|@ohos.stationary.d.ts| 5|Added|NA|Module name: ohos.stationary<br>Class name: ActivityType<br>Method or attribute name: type ActivityType = 'still' \| 'relativeStill';|@ohos.stationary.d.ts| 6|Added|NA|Module name: ohos.stationary<br>Class name: ActivityResponse|@ohos.stationary.d.ts| 7|Added|NA|Module name: ohos.stationary<br>Class name: ActivityResponse<br>Method or attribute name: state: ActivityState;|@ohos.stationary.d.ts| 8|Added|NA|Module name: ohos.stationary<br>Class name: ActivityEvent|@ohos.stationary.d.ts| 9|Added|NA|Module name: ohos.stationary<br>Class name: ActivityEvent<br>Method or attribute name: ENTER = 1|@ohos.stationary.d.ts| 10|Added|NA|Module name: ohos.stationary<br>Class name: ActivityEvent<br>Method or attribute name: EXIT = 2|@ohos.stationary.d.ts| 11|Added|NA|Module name: ohos.stationary<br>Class name: ActivityEvent<br>Method or attribute name: ENTER_EXIT = 3|@ohos.stationary.d.ts| 12|Added|NA|Module name: ohos.stationary<br>Class name: ActivityState|@ohos.stationary.d.ts| 13|Added|NA|Module name: ohos.stationary<br>Class name: ActivityState<br>Method or attribute name: ENTER = 1|@ohos.stationary.d.ts| 14|Added|NA|Module name: ohos.stationary<br>Class name: ActivityState<br>Method or attribute name: EXIT = 2|@ohos.stationary.d.ts| 15|Added|NA|Module name: ohos.stationary<br>Class name: stationary<br>Method or attribute name: function on(activity: ActivityType, event: ActivityEvent, reportLatencyNs: number, callback: Callback\<ActivityResponse>): void;|@ohos.stationary.d.ts| 16|Added|NA|Module name: ohos.stationary<br>Class name: stationary<br>Method or attribute name: function once(activity: ActivityType, callback: Callback\<ActivityResponse>): void;|@ohos.stationary.d.ts| 17|Added|NA|Module name: ohos.stationary<br>Class name: stationary<br>Method or attribute name: function off(activity: ActivityType, event: ActivityEvent, callback?: Callback\<ActivityResponse>): void;|@ohos.stationary.d.ts| 18