提交 e70629ea 编写于 作者: W wusongqing

update docs against 7699

Signed-off-by: Nwusongqing <wusongqing@huawei.com>
上级 e78e7fb7
......@@ -30,7 +30,7 @@ A Service ability is used to run tasks in the background, such as playing music
},
onConnect(want) {
console.log('ServiceAbility OnConnect');
return null;
return new FirstServiceAbilityStub('test');
},
onDisconnect(want) {
console.log('ServiceAbility OnDisConnect');
......@@ -113,8 +113,6 @@ let promise = featureAbility.startAbility(
Once created, the Service ability keeps running in the background. The system does not stop or destroy it unless memory resources must be reclaimed.
### Connecting to a Local Service Ability
If you need to connect a Service ability to a Page ability or to a Service ability in another application, you must first implement the **IAbilityConnection** API for the connection. A Service ability allows other abilities to connect to it through **connectAbility()**.
......@@ -124,7 +122,7 @@ You can use either of the following methods to connect to a Service ability:
1. Using the IDL to automatically generate code
Use OpenHarmony Interface Definition Language (IDL) to automatically generate the corresponding client, server, and **IRemoteObject** code. For details, see [“Development Using TS” in OpenHarmony IDL Specifications and User Guide](https://gitee.com/openharmony/docs/blob/master/en/application-dev/IDL/idl-guidelines.md#development-using-ts).
Use OpenHarmony Interface Definition Language (IDL) to automatically generate the corresponding client, server, and **IRemoteObject** code. For details, see “Development Using TS" in [OpenHarmony IDL Specifications and User Guide](../IDL/idl-guidelines.md).
2. Writing code in the corresponding file
......@@ -134,42 +132,37 @@ You can use either of the following methods to connect to a Service ability:
```javascript
import prompt from '@system.prompt'
let mRemote;
function onConnectCallback(element, remote){
console.log('onConnectLocalService onConnectDone element: ' + element);
console.log('onConnectLocalService onConnectDone remote: ' + remote);
mRemote = remote;
if (mRemote == null) {
prompt.showToast({
message: "onConnectLocalService not connected yet"
});
return;
}
let option = new rpc.MessageOption();
let data = new rpc.MessageParcel();
let reply = new rpc.MessageParcel();
data.writeInt(1);
data.writeInt(99);
mRemote.sendRequest(1, data, reply, option).then((result) => {
console.log('sendRequest success');
let msg = reply.readInt();
var option = {
onConnect: function onConnectCallback(element, proxy) {
console.log(`onConnectLocalService onConnectDone`)
if (proxy === null) {
prompt.showToast({
message: "Connect service failed"
})
return
}
let data = rpc.MessageParcel.create()
let reply = rpc.MessageParcel.create()
let option = new rpc.MessageOption()
data.writeInterfaceToken("connect.test.token")
proxy.sendRequest(0, data, reply, option)
prompt.showToast({
message: "onConnectLocalService connect result: " + msg,
duration: 3000
});
}).catch((e) => {
console.log('sendRequest error:' + e);
});
}
function onDisconnectCallback(element){
console.log('ConnectAbility onDisconnect Callback')
}
function onFailedCallback(code){
console.log('ConnectAbility onFailed Callback')
message: "Connect service success"
})
},
onDisconnect: function onDisconnectCallback(element) {
console.log(`onConnectLocalService onDisconnectDone element:${element}`)
prompt.showToast({
message: "Disconnect service success"
})
},
onFailed: function onFailedCallback(code) {
console.log(`onConnectLocalService onFailed errCode:${code}`)
prompt.showToast({
message: "Connect local service onFailed"
})
}
}
```
......@@ -196,45 +189,28 @@ You can use either of the following methods to connect to a Service ability:
```javascript
import rpc from "@ohos.rpc";
let mMyStub;
export default {
onStart() {
class MyStub extends rpc.RemoteObject{
constructor(des) {
if (typeof des === 'string') {
super(des);
}
return null;
}
onRemoteRequest(code, data, reply, option) {
console.log("ServiceAbility onRemoteRequest called");
if (code === 1) {
let op1 = data.readInt();
let op2 = data.readInt();
console.log("op1 = " + op1 + ", op2 = " + op2);
reply.writeInt(op1 + op2);
} else {
console.log("ServiceAbility unknown request code");
}
return true;
}
}
mMyStub = new MyStub("ServiceAbility-test");
},
onCommand(want, startId) {
console.log('ServiceAbility onCommand');
},
onConnect(want) {
console.log('ServiceAbility OnConnect');
return mMyStub;
},
onDisconnect(want) {
console.log('ServiceAbility OnDisConnect');
},
onStop() {
console.log('ServiceAbility onStop');
},
class FirstServiceAbilityStub extends rpc.RemoteObject {
constructor(des: any) {
if (typeof des === 'string') {
super(des)
} else {
return
}
}
onRemoteRequest(code: number, data: any, reply: any, option: any) {
console.log(printLog + ` onRemoteRequest called`)
if (code === 1) {
let string = data.readString()
console.log(printLog + ` string=${string}`)
let result = Array.from(string).sort().join('')
console.log(printLog + ` result=${result}`)
reply.writeString(result)
} else {
console.log(printLog + ` unknown request code`)
}
return true;
}
```
......@@ -253,40 +229,36 @@ The following code snippet shows how to implement the callbacks:
```ts
import prompt from '@system.prompt'
let mRemote;
function onConnectCallback(element, remote){
console.log('onConnectRemoteService onConnectDone element: ' + element);
console.log('onConnectRemoteService onConnectDone remote: ' + remote);
mRemote = remote;
if (mRemote == null) {
prompt.showToast({
message: "onConnectRemoteService not connected yet"
});
return;
}
let option = new rpc.MessageOption();
let data = new rpc.MessageParcel();
let reply = new rpc.MessageParcel();
data.writeInt(1);
data.writeInt(99);
mRemote.sendRequest(1, data, reply, option).then((result) => {
console.log('sendRequest success');
let msg = reply.readInt();
var option = {
onConnect: function onConnectCallback(element, proxy) {
console.log(`onConnectRemoteService onConnectDone`)
if (proxy === null) {
prompt.showToast({
message: "Connect service failed"
})
return
}
let data = rpc.MessageParcel.create()
let reply = rpc.MessageParcel.create()
let option = new rpc.MessageOption()
data.writeInterfaceToken("connect.test.token")
proxy.sendRequest(0, data, reply, option)
prompt.showToast({
message: "onConnectRemoteService connect result: " + msg,
duration: 3000
});
}).catch((e) => {
console.log('sendRequest error:' + e);
});
}
function onDisconnectCallback(element){
console.log('ConnectRemoteAbility onDisconnect Callback')
}
function onFailedCallback(code){
console.log('ConnectRemoteAbility onFailed Callback')
message: "Connect service success"
})
},
onDisconnect: function onDisconnectCallback(element) {
console.log(`onConnectRemoteService onDisconnectDone element:${element}`)
prompt.showToast({
message: "Disconnect service success"
})
},
onFailed: function onFailedCallback(code) {
console.log(`onConnectRemoteService onFailed errCode:${code}`)
prompt.showToast({
message: "Connect local service onFailed"
})
}
}
```
......@@ -372,23 +344,25 @@ The following code snippet shows how the Service ability instance returns itself
```ts
import rpc from "@ohos.rpc";
class FirstServiceAbilityStub extends rpc.RemoteObject{
constructor(des) {
class FirstServiceAbilityStub extends rpc.RemoteObject {
constructor(des: any) {
if (typeof des === 'string') {
super(des);
super(des)
} else {
return null;
return
}
}
onRemoteRequest(code, data, reply, option) {
console.log("ServiceAbility onRemoteRequest called");
onRemoteRequest(code: number, data: any, reply: any, option: any) {
console.log(printLog + ` onRemoteRequest called`)
if (code === 1) {
let op1 = data.readInt();
let op2 = data.readInt();
console.log("op1 = " + op1 + ", op2 = " + op2);
reply.writeInt(op1 + op2);
let string = data.readString()
console.log(printLog + ` string=${string}`)
let result = Array.from(string).sort().join('')
console.log(printLog + ` result=${result}`)
reply.writeString(result)
} else {
console.log("ServiceAbility unknown request code");
console.log(printLog + ` unknown request code`)
}
return true;
}
......
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