【问题描述】
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文档描述了js调用pa案例，没有ets调用pa用例？接下来就是ets怎么调用pa
参考文档链接
https://developer.harmonyos.c...
【解决方案】
第一步：新建pa的Ability（目前命名为MyServiceAbility）
参考资料链接
https://developer.harmonyos.c...
代码如下
// ohos相关接口包
public class ComputeInternalAbility extends AceInternalAbility {
private static final String BUNDLE_NAME = "com.harmony.alliance.myets";
private static final String ABILITY_NAME = "com.harmony.alliance.myets.ComputeInternalAbility";
private static final int SUCCESS = 0;
private static final int ERROR = 1;
private static final int PLUS = 1001;
// 定义日志标签
private static final HiLogLabel LABEL = new HiLogLabel(HiLog.LOG_APP, 0, "MY_TAG");
private static ComputeInternalAbility instance;
private AbilityContext abilityContext;
// 如果多个Ability实例都需要注册当前InternalAbility实例，需要更改构造函数，设定自己的bundleName和abilityName
public ComputeInternalAbility() {
super(BUNDLE_NAME, ABILITY_NAME);
}
/**
* Internal ability 注册接口。
*/
public static void register(AbilityContext abilityContext) {
instance = new ComputeInternalAbility();
instance.onRegister(abilityContext);
}
/**
* Internal ability 注销接口。
*/
public static void unregister() {
instance.onUnregister();
}
public boolean onRemoteRequest(int code, MessageParcel data, MessageParcel reply, MessageOption option) {
switch (code) {
case PLUS: {
System.err.println("app log pa得到ets数据"+data.readString());
Map result = new HashMap();
result.put("code", SUCCESS);
result.put("abilityResult", "Pa data");
MessageParcel responseData = https://www.it610.com/article/MessageParcel.obtain();
responseData.writeString(ZSONObject.toZSONString(result));
IRemoteObject remoteReply = reply.readRemoteObject();
try {
remoteReply.sendRequest(0, responseData, MessageParcel.obtain(), new MessageOption());
} catch (RemoteException exception) {
return false;
} finally {
responseData.reclaim();
}
break;
}
default: {
Map result = new HashMap();
result.put("abilityError", ERROR);
reply.writeString(ZSONObject.toZSONString(result));
return false;
}
}
return true;
}
private void onRegister(AbilityContext abilityContext) {
this.abilityContext = abilityContext;
this.setInternalAbilityHandler((code, data, reply, option) -> {
return this.onRemoteRequest(code, data, reply, option);
});
}
private void onUnregister() {
abilityContext = null;
this.setInternalAbilityHandler(null);
}
}
第二步 查看config.json是否abilities是否该Pa配置文件
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第三步 书写MainAbility的onStart（）和onStop（）代码 代码如下
package com.harmony.alliance.myets;
import ohos.ace.ability.AceAbility;
import ohos.aafwk.content.Intent;
import ohos.security.SystemPermission;
public class MainAbility extends AceAbility {
@Override
public void onStart(Intent intent) {
ComputeInternalAbility.register(this);
super.onStart(intent);
}
@Override
public void onStop() {
ComputeInternalAbility.unregister();
super.onStop();
SampleJSInterface.getInstance().deregister(this);
}
}第四步 书写ets文件
@Entry
@Component
struct MyService {
build() {
Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
Text('ets调用pa')
.fontSize(50)
.onClick(function () {
FeatureAbility.callAbility({
bundleName: 'com.harmony.alliance.myets',
abilityName: 'com.harmony.alliance.myets.ComputeInternalAbility',
messageCode: 1001,
abilityType: 1,
data: { firstNum: 1, secondNum: 2 },
syncOption: 0
}).then((data) => {
console.log('pa传递给ets的数据 ' + data);
})
})
.fontWeight(FontWeight.Bold)
}
.width('100%')
.height('100%')
}
}运行效果：
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