android - aidl oneway 关键字错误

Question

我正在实现一个 aidl 接口(interface)，由于某种原因，下面的代码给我一个错误:

// IApkinsonCallback.aidl
package com.applications.philipp.apkinson.interfaces;

/** Interface implemented by Apkinson so plugins can give feedback */
oneway interface IApkinsonCallback {
    /** To be called by plugin after registration to setup data for result viewing
        Usage of this data:
        Intent intent = new Intent(intentActionName);
        intent.putExtra(bundleResultKey, result);
        startActivity(intent);
     */
    void onRegistered(String intentActionName, String bundleResultKey);
    /** To be called by plugin when result is ready after stopData() was called by Apkinson */
    void onResult(String result);
    /** Called if an error occured in the plugin and the call won't be successfully handled */
    void onError(String errorMsg);
}

错误:

<interface declaration>, <parcelable declaration>, AidlTokenType.import or AidlTokenType.package expected, got 'oneway'

当我删除 oneway 关键字时，一切正常。但这不能解决我的问题...

Answer 1

总结:

将 oneway 关键字移动到方法级别。

解释-
这是一个与 /platform/frameworks/base/api/current.txt 有关的非常奇怪的问题Android 框架内的文件(包含每个函数并由 Android Studio 使用的大 txt 文件)。

示例-

/** Interface implemented by Apkinson so plugins can give feedback */
interface IApkinsonCallback {
    /** To be called by plugin after registration to setup data for result viewing
        Usage of this data:
        Intent intent = new Intent(intentActionName);
        intent.putExtra(bundleResultKey, result);
        startActivity(intent);
     */
    oneway void onRegistered(String intentActionName, String bundleResultKey);
    /** To be called by plugin when result is ready after stopData() was called by Apkinson */
    oneway void onResult(String result);
    /** Called if an error occured in the plugin and the call won't be successfully handled */
    oneway void onError(String errorMsg);
}

您将得到相同的结果但没有错误。