harmony 鸿蒙Setting Atomic Services to Support Sharing

2023-06-24
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Setting Atomic Services to Support Sharing

By means of sharing, users can quickly access atomic services and use their features.

How to Develop

In the sharing scenario, there are two parties involved: a target application that shares data and an application that obtains the shared data. The two can be physically the same. The target application uses the onShare() lifecycle callback to set the data to share. After the target application is started, you can run the hdc shell aa dump -a command to check the started services and processes and find its mission ID. After the current application is started, call the abilityManager.acquireShareData() API with the mission ID passed in to obtain the shared data. > NOTE > > The mission ID of the target application can also be obtained by calling missionManager.getMissionInfos().

The target application calls UIAbility.onShare() provided by the UIAbility component to set the data to share. ohos.extra.param.key.contentTitle indicates the title of the content to share in the sharing box, ohos.extra.param.key.shareAbstract provides an abstract description of the content, and ohos.extra.param.key.shareUrl indicates the online address of the service. You need to set these three items as objects, with the key set to title, abstract, and url, respectively.

   import AbilityConstant from '@ohos.app.ability.AbilityConstant';
   class MyUIAbility extends UIAbility {
       onShare(wantParams) {
           console.log('onShare');
           wantParams['ohos.extra.param.key.contentTitle'] = {title: "W3"};
           wantParams['ohos.extra.param.key.shareAbstract'] = {abstract: "communication for huawei employee"};
           wantParams['ohos.extra.param.key.shareUrl'] = {url: "w3.huawei.com"};
       }
   }

The current application calls abilityManager.acquireShareData() to obtain the data shared by the target application. missionId indicates the target application’s mission ID, which can be obtained by running the hdc shell aa dump -a command or calling the missionManager.getMissionInfos() API after the target application is started. wantParam indicates the data shared by the target application through the UIAbility.onShare() lifecycle callback.

   import abilityManager from '@ohos.app.ability.abilityManager';
   try {
       abilityManager.acquireShareData(1, (err, wantParam) => {
           if (err) {
               console.error(`acquireShareData fail, err: ${JSON.stringify(err)}`);
           } else {
               console.log(`acquireShareData success, data: ${JSON.stringify(wantParam)}`);
           }
       });
   } catch (paramError) {
       console.error(`error.code: ${JSON.stringify(paramError.code)}, error.message: ${JSON.stringify(paramError.message)}`);
   }