HarmonyOS 鸿蒙Next notificationManager.publish无效

总提示Failed to publish notification. Code is 1600004, message is Notification is not enabled

不知道什么原因导致的

HarmonyOS SDK API 9

下面是代码

import router from ‘@ohos.router’;
import MyComponent2 from ‘…/components/MyComponent2’
import display from ‘@ohos.display’;
import promptAction from ‘@ohos.promptAction’;
import notificationManager from ‘@ohos.notificationManager’;
import getPixelMap from ‘…/utils/DecodeUtil’;
import image from ‘@ohos.multimedia.image’;

@Entry
@Component
struct Index {
pageContent?: Object;
@Provide pixelMap?: image.PixelMap = undefined;
onPageShow() {
this.pageContent = this;
this.pixelInit()
}
pixelInit () {
if (this.pageContent !== undefined){
getPixelMap(this.pageContent).then((pixelMap?: image.PixelMap) => {
if (pixelMap) {
this.pixelMap = pixelMap;
}
})
}
}
onClickBtn() {
console.log(‘zsf this.’, this);
getPixelMap(this.pageContent).then((pixelMap?: image.PixelMap) => {
if (pixelMap) {
this.pixelMap = pixelMap;
    console.log(<span class="hljs-string">'zsf 进来了可'</span>);

    <span class="hljs-keyword">let</span> notificationRequest: notificationManager.NotificationRequest = {
      id: <span class="hljs-number">1</span>,
      content: {
        contentType: notificationManager.ContentType.NOTIFICATION_CONTENT_PICTURE,
        picture: {
          title: <span class="hljs-string">'test_title'</span>,
          text: <span class="hljs-string">'test_text'</span>,
          additionalText: <span class="hljs-string">'test_additionalText'</span>,
          briefText: <span class="hljs-string">'test_briefText'</span>,
          expandedTitle: <span class="hljs-string">'test_expandedTitle'</span>,
          picture: <span class="hljs-keyword">this</span>.pixelMap
        }
      }
    };

    <span class="hljs-comment">// 发布通知</span>
    notificationManager.publish(notificationRequest, (err) =&gt; {
      <span class="hljs-keyword">if</span> (err) {
        console.error(`zsf Failed to publish notification. Code is ${err.code}, message is ${err.message}`);
        <span class="hljs-keyword">return</span>;
      }
      console.info(<span class="hljs-string">'zsf Succeeded in publishing notification.'</span>);
    });
  }
})
}
build() {
Row() {
Column() {
Button(‘按钮’).fontColor(Color.White).fontSize(40)
.onClick(this.onClickBtn.bind(this))
}
.width(‘100%’) //®.alignItems(HorizontalAlign.Start)
}
.height(‘100%’)
}
}<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>

module.json5里没指定requestPermissions