harmony 鸿蒙ChangeLog
ChangeLog
关键的接口/组件变更
进程间通信子系统
cl.rpc.1 sendRequest返回值类型变更
变更影响
js的RemoteProxy和RemoteObject的sendRequest变更为异步接口，返回Promise，兑现值是SendRequestResult的实例。原有应用需要适配。
关键的接口/组件变更
模块：ohos.rpc.IRemoteObject, ohos.rpc.RemoteProxy和ohos.rpc.RemoteObject
接口：sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): boolean
变更后接口：
sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): Promise<SendRequestResult>
适配指导
import rpc from "@ohos.rpc"
import FA from "@ohos.ability.featureAbility";
let proxy;
let connect = {
onConnect: function(elementName, remoteProxy) {
console.log("RpcClient: js onConnect called.");
proxy = remoteProxy;
},
onDisconnect: function(elementName) {
console.log("RpcClient: onDisconnect");
},
onFailed: function() {
console.log("RpcClient: onFailed");
}
};
let want = {
"bundleName": "com.ohos.server",
"abilityName": "com.ohos.server.MainAbility",
};
FA.connectAbility(want, connect);
let option = new rpc.MessageOption()
let data = rpc.MessageParcel.create()
let reply = rpc.MessageParcel.create()
proxy.sendRequest(1, data, reply, option)
.then(function(result) {
console.info("send request done")
if (result.errCode === 0) {
// read result from result.reply
}
})
.catch(function(e) {
console.error("send request failed: " + e)
})
.finally(() => {
data.reclaim()
reply.reclaim()
})
你可能感兴趣的鸿蒙文章
0
赞
- 所属分类： 后端技术
- 本文标签：
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
6、 golang
-
7、 openharmony