Android 自定义 class 依赖于aidl

Question

So I have the following project structure:

.
├── Central
│   ├── app
│   │   ├── build.gradle
│   │   └── src
│   ├── build.gradle
│   ├── gradle.properties
│   └── settings.gradle
└── Client
    ├── app
    │   ├── build.gradle
    │   └── src
    ├── build.gradle
    ├── gradle.properties
    └── settings.gradle

In the Central app, I define a service and along with it an AIDL interface. In the AIDL, one of the functions returns a custom object (which extends Parcelable). In the Client app, I put the exact same AIDL file (under the same package in the src/aidl directory). I try to import the custom class by declaring a gradle dependency to the Central app.

Here is the Client's settings.gralde

rootProject.name='Client'
include ':app'

include ":Central"
project(":Central").projectDir = file('../Central/app')

The Client's app/build.gralde:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"

    defaultConfig {
        applicationId "com.Patel.Cli3n5"
        minSdkVersion 28
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation  project(path: ':Central', configuration: 'default')
}

And the aidl file (present in both apps):

package com.Patel.Central;

import android.graphics.Bitmap;
parcelable Info;

interface MusicCentral {
     List<Info> getAllSongsInfo();
     Bitmap getSongImage(int songNum);
}

And note that the Info class is defined in the package com.Patel.Central .

When I try to build the Client app, I get the following error:

error: cannot find symbol
    @Override public java.util.List<com.Patel.Central.Info> getAllSongsInfo() throws android.os.RemoteException

In summary, the problem is that there is a custom class and I need to import from an app that is in another directory.

Answer 1

You need to define both files

Info.java

and

Info.aidl seprate aidl file for Info.java

with same package name at both client and remote application.

means package should have

MusicCentral.aidl
Info.java
Info.aidl

in com.Patel.Central package.