HarmonyOS 鸿蒙Next Map Kit添加点注释问题

HarmonyOS 鸿蒙Next Map Kit添加点注释问题

地图中使用addPointAnnotation for循环添加点注释，首个添加行为耗时500ms左右 ，后续耗时正常 1、创建地图 2、添加点注释

import { systemDateTime } from '@kit.BasicServicesKit';
import { ArrayList } from '@kit.ArkTS';
import hilog from '@ohos.hilog';

export class StopWatchUtil {
private static Tag: string = this.name;
private static isBegin: boolean = false;
private static taskName: string;
private static startTime: number;
private static splitTime: number;
private static taskBeanList: ArrayList<TaskBean> = new ArrayList();

/**
* 开始计时
*/
static begin(task: string) {
StopWatchUtil.isBegin = true;
StopWatchUtil.taskName = task;
StopWatchUtil.startTime = systemDateTime.getTime();
StopWatchUtil.splitTime = 0;
StopWatchUtil.taskBeanList.clear();
StopWatchUtil.taskBeanList.add({ time: 0, taskName: 'begin' });
}

/**
* 事务记录
*/
static split(subtaskName: string) {
if (StopWatchUtil.isBegin) {
if (StopWatchUtil.splitTime === 0) {
StopWatchUtil.splitTime = systemDateTime.getTime() - StopWatchUtil.startTime;
} else {
StopWatchUtil.splitTime = systemDateTime.getTime() - StopWatchUtil.splitTime;
}
StopWatchUtil.taskBeanList.add({ time: StopWatchUtil.splitTime, taskName: subtaskName });
StopWatchUtil.splitTime = systemDateTime.getTime();
} else {
hilog.debug(0, StopWatchUtil.Tag, "请先调用 StopWatch.begin(task:string)");
}
}

/**
* 结束计时并输出log
*/
static writeLog() {
if (StopWatchUtil.isBegin) {
let totalTime = systemDateTime.getTime() - StopWatchUtil.startTime;

for (let taskBean of StopWatchUtil.taskBeanList) {
let time = taskBean.time;
let data: string;
if ("begin" === taskBean.taskName) {
data = taskBean.taskName;
} else {
if (totalTime == 0) {
data = ` ${time} ms, 0%, ${taskBean.taskName}`;
} else {
let percentage = time / totalTime * 100;
data = ` ${time} ms, ${Math.round(percentage)}%, ${taskBean.taskName}`;
}
}
hilog.debug(0, StopWatchUtil.Tag, '%{public}s %{public}s', StopWatchUtil.taskName, data);
}
hilog.debug(0, StopWatchUtil.Tag, "%{public}s end 总耗时: %{public}d ms", StopWatchUtil.taskName,
totalTime);
} else {
hilog.debug(0, StopWatchUtil.Tag, "请先调用 StopWatch.begin(task:string)");
}
StopWatchUtil.isBegin = false;
StopWatchUtil.taskBeanList.clear();
}
}

interface TaskBean {
time: number
taskName: string
}
//计时工具类结束


//添加marker代码，日志以通过 “小象upup” 过滤，具体marker数据请技术老师自己随意构造
async markerInit() {
this.mapController?.clear();
this.markerList.length = 0;
StopWatchUtil.begin('小象upup');

for (let bean of this.targetMarkerBeans) {
// 转换经纬度坐标
let gcj02Position: mapCommon.LatLng =
map.convertCoordinateSync(mapCommon.CoordinateType.WGS84, mapCommon.CoordinateType.GCJ02, bean.latLng);

let pointAnnotationOptions: mapCommon.PointAnnotationParams = {
// 定义点注释图标锚点
position: gcj02Position,
// 定义点注释名称与地图poi名称相同时，是否支持去重
repeatable: true,
// 定义点注释的碰撞规则
collisionRule: mapCommon.CollisionRule.NAME,
// 定义点注释的标题，数组长度最小为1，最大为3
titles: [{
// 定义标题内容
content: bean.customerName,
// 定义标题字体颜色
color: 0x80000000,
// 定义标题字体大小
fontSize: 14,
// 定义标题描边颜色
strokeColor: 0xFFFFFFFF,
// 定义标题描边宽度
strokeWidth: 2,
// 定义标题字体样式
fontStyle: mapCommon.FontStyle.ITALIC
}],
// 定义点注释是否展示图标
showIcon: true,
// 定义点注释的锚点在水平方向上的位置
anchorU: 0.5,
// 定义点注释的锚点在垂直方向上的位置
anchorV: 1,
// 定义点注释的显示属性，为true时，在被碰撞后仍能显示
forceVisible: true,
// 定义点注释展示的最小层级
minZoom: 2,
// 定义点注释展示的最大层级
maxZoom: 22,
// 定义点注释是否可见
visible: true,
// 定义点注释叠加层级属性
zIndex: 0
}

switch (bean.type) {
case 0:
pointAnnotationOptions.icon =
PixelMapUtil.getPixelMapByResource($r('app.media.map_contact_marker'), 200);
break;
case 1:
pointAnnotationOptions.icon =
bean.isDone ?
PixelMapUtil.getPixelMapByResource($r('app.media.map_schedule_done_marker'), 200) :
PixelMapUtil.getPixelMapByResource($r('app.media.map_schedule_undone_marker'), 200)
break;
case 2:
pointAnnotationOptions.icon =
bean.isDone ? PixelMapUtil.getPixelMapByResource($r('app.media.map_work_done_marker'), 200) :
PixelMapUtil.getPixelMapByResource($r('app.media.map_work_undone_marker'), 200);
break;
default:
pointAnnotationOptions.icon = PixelMapUtil.getPixelMapByResource($r('app.media.icon'), 200)
break
}

StopWatchUtil.split('marker参数完成')

let pointAnnotation = await this.mapController?.addPointAnnotation(pointAnnotationOptions);
StopWatchUtil.split(`第${this.targetMarkerBeans.indexOf(bean)}个marker添加完成`)
if (pointAnnotation) {
pointAnnotation.setTag(bean);
this.markerList.push(pointAnnotation);
}
}
StopWatchUtil.writeLog();
}