AbilitySlice间导航(新手基础文) 原创

发布于 2021-4-23 11:30
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官方链接:https://developer.harmonyos.com/cn/docs/documentation/doc-guides/ability-page-switching-0000000000037999

 

一:同一Page内导航

 present(new TargetSlice(),new Intent());

     希望 能够获得其返回结果

  ASlice跳转BSlice
  presentForResult(new TargetSlice(),new Intent(),111);

  BSlice返回带结果 代码

  findComponentById(ResourceTable.Id_back_result_btn).setClickedListener(component -> {
            Intent resultIntent = new Intent();
            resultIntent.setParam("result","我的TargetSlice返回的结果");
            setResult(resultIntent);
            terminate();
        });

 ASlice结果接收
 
  @Override
    protected void onResult(int requestCode, Intent resultIntent) {
        super.onResult(requestCode, resultIntent);
        Log.d("", "onResult %d", requestCode);
        if (requestCode == 111) {
            // Process resultIntent here.
            String resultString = resultIntent.getStringParam("result");
            Log.d("", "resultString %s", resultString);
            text.setText(resultString);
        }
    }
 

 

二,不同Page间导航

            Intent newIntent = new Intent();
            // 通过Intent中的OperationBuilder类构造operation对象,
            // 指定设备标识(空串表示当前设备)、应用包名、Ability名称
            Operation operation = new Intent.OperationBuilder()
                .withDeviceId("")
                .withBundleName("com.pvj.aidemo")
                .withAbilityName("com.pvj.aidemo.example.pageroute.PageRouteDemoAbility")
               // .withAbilityName(PageRouteDemoAbility.class.getCanonicalName())
                .build();

            // 把operation设置到intent中
            newIntent.setOperation(operation);
            startAbility(newIntent);

     根据Action 跳转 带结构的

   

   Intent intent = new Intent();
    Operation operation = new Intent.OperationBuilder()
            .withAction(Intent.ACTION_QUERY_WEATHER)
            .build();
    intent.setOperation(operation);
    startAbilityForResult(intent, REQ_CODE_QUERY_WEATHER);


@Override
protected void onAbilityResult(int requestCode, int resultCode, Intent resultData) {
    switch (requestCode) {
        case REQ_CODE_QUERY_WEATHER:
            // Do something with result.
            ...
            return;
        default:
            ...
    }
}

1,config配置
{
    "module": {
        ...
        "abilities": [
            {
                ...
                "skills":[
                    {
                        "actions":[
                            "ability.intent.QUERY_WEATHER"
                        ]
                    }
                ]
                ...
            }
        ]
        ...
    }
    ...
}

2,在Ability中配置路由以便支持以此action导航到对应的AbilitySlice
@Override
protected void onStart(Intent intent) {
    ...
    addActionRoute(Intent.ACTION_QUERY_WEATHER, DemoSlice.class.getName());
    ...
}

在Ability中处理请求,并调用setResult()方法暂存返回结果

 

@Override
protected void onActive() {
    ...
    Intent resultIntent = new Intent();
    setResult(0, resultIntent);   //0为当前Ability销毁后返回的resultCode。
    ...
}

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