diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-Want.md b/zh-cn/application-dev/reference/apis/js-apis-application-Want.md index fe90a7f82ece3a649a0d803391df1eec09697f6d..981714143e44694d57fd2237aa4edcc1fc6aa1b7 100644 --- a/zh-cn/application-dev/reference/apis/js-apis-application-Want.md +++ b/zh-cn/application-dev/reference/apis/js-apis-application-Want.md @@ -31,15 +31,85 @@ import Want from '@ohos.application.Want'; **示例:** +- 基础用法 + ``` js - var want = { - "deviceId": "", // deviceId为空表示本设备 - "bundleName": "com.extreme.test", - "abilityName": "MainAbility", - "moduleName": "entry" // moduleName非必选 - }; - this.context.startAbility(want, (error) => { - // 显式拉起Ability,通过bundleName、abilityName和moduleName可以唯一确定一个Ability - console.log("error.code = " + error.code) - }) -``` + var want = { + "deviceId": "", // deviceId为空表示本设备 + "bundleName": "com.extreme.test", + "abilityName": "MainAbility", + "moduleName": "entry" // moduleName非必选 + }; + this.context.startAbility(want, (error) => { + // 显式拉起Ability,通过bundleName、abilityName和moduleName可以唯一确定一个Ability + console.log("error.code = " + error.code) + }) + ``` + +- 传递FD数据,FD表示文件描述符(FileDescriptor) + + ``` js + var fd; + try { + fd = fileio.openSync("/data/storage/el2/base/haps/pic.png"); + } catch(e) { + console.log("openSync fail:" + JSON.stringify(e)); + } + var want = { + "deviceId": "", // deviceId为空表示本设备 + "bundleName": "com.extreme.test", + "abilityName": "MainAbility", + "moduleName": "entry" // moduleName非必选 + "parameters": { + "keyFd":{"type":"FD", "value":fd} + } + }; + this.context.startAbility(want, (error) => { + // 显式拉起Ability,通过bundleName、abilityName和moduleName可以唯一确定一个Ability + console.log("error.code = " + error.code) + }) + ``` + +- 传递RemoteObject数据 + + ``` js + class Stub extends rpc.RemoteObject { + constructor(des) { + if (typeof des == 'string') { + super(des); + } else { + return null; + } + } + + onRemoteRequest(code, data, reply, option) { + if (code === 1) { + console.log('onRemoteRequest called') + let token = data.readInterfaceToken(); + let num = data.readInt(); + this.method(); + return true; + } + return false; + } + + method() { + console.log('method called'); + } + } + + var remoteObject = new Stub('want-test'); + var want = { + "deviceId": "", // deviceId为空表示本设备 + "bundleName": "com.extreme.test", + "abilityName": "MainAbility", + "moduleName": "entry" // moduleName非必选 + "parameters": { + "keyRemoteObject":{"type":"RemoteObject", "value":remoteObject} + } + }; + this.context.startAbility(want, (error) => { + // 显式拉起Ability,通过bundleName、abilityName和moduleName可以唯一确定一个Ability + console.log("error.code = " + error.code) + }) + ```