add wantAgent changelog

Signed-off-by: NfangJinliang1 <fangjinliang1@huawei.com>
Change-Id: I3338723cc2937b9cc08a5fc60f513a9b3543ec5f

zh-cn/release-notes/changelogs/OpenHarmony_3.2.9.1/changelogs-wantAgent.md

+# wantAgent的JS API变更Changelog
+
+OpenHarmony 3.2.9.1 sp8版本相较于OpenHarmony 3.2.8.1版本，wantAgent的API变更如下
+
+## cl.url.1.trigger类接口变更
+trigger(agent: WantAgent, triggerInfo: TriggerInfo, callback?: Callback<CompleteData>): void ;
+
+因部分功能未实现，已对其进行删除，应用可调用下面接口进行替代：
+
+ trigger(agent: WantAgent, triggerInfo: TriggerInfo, callback?: AsyncCallback<CompleteData>): void 
+
+ **变更影响**
+
+影响已发布的JS接口，应用需要进行适配，才可以在新版本SDK环境正常编译通过。
+
+**关键的接口/组件变更**
+
+| OpenHarmony 3.2.8.1版本接口                                  | OpenHarmony 3.2.9.1 sp8版本接口                              |
+| ------------------------------------------------------------ | ------------------------------------------------------------ |
+| trigger(agent: WantAgent, triggerInfo: TriggerInfo, callback?: Callback<CompleteData>): void ; | trigger(agent: WantAgent, triggerInfo: TriggerInfo, callback?: AsyncCallback<CompleteData>): void |
+
+**适配指导**
+
+应用中调用替代的trigger接口可参考下列代码
+
+示例：
+
+```ts
+import WantAgent from '@ohos.app.ability.wantAgent';
+//wantAgent对象
+var wantAgent;
+// triggerInfo
+var triggerInfo = {
+        code: 0
+    }
+//WantAgentInfo对象
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: WantAgent.OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+//getWantAgent回调
+function getWantAgentCallback(err, data) {
+    if (err == undefined) {
+        wantAgent = data;
+    } else {
+        console.info('getWantAgent failed' + JSON.stringify(wantAgent));
+    }
+    //getUid回调
+    function triggerCallback(err, data) {
+        if(err) {
+            console.info('getUid failed!' + JSON.stringify(err.code) + JSON.stringify(err.message));
+        } else {
+            console.info('getUid ok!' + JSON.stringify(data));
+        }
+    }
+    try {
+        WantAgent.trigger(wantAgent, triggerInfo, triggerCallback);
+    } catch(err) {
+        console.info('getUid failed!' + JSON.stringify(err.code) + JSON.stringify(err.message));
+    }
+}
+try{
+    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
+} catch(err){
+    console.info('getWantAgent failed!' + JSON.stringify(err.code) + JSON.stringify(err.message));
+}
+```