問題描述

Android Studio 3.4.2

Android Studio 3.4.2

我有使用模塊 mytransport 的主項目(應用程序)，如下所示:

I has main project (app) that use module mytransport like this:

app/build.gradle

dependencies {
    annotationProcessor "org.androidannotations:androidannotations:$AAVersion"

    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation('com.crashlytics.sdk.android:crashlytics:2.7.0@aar') { transitive = true; }
    implementation 'com.google.android.material:material:1.1.0-alpha07'
    implementation "org.androidannotations:androidannotations-api:$AAVersion"

    implementation project(':mytransport')

}

在 mytransport/build.gradle:

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.google.code.gson:gson:2.8.5'

}

在 mytransport 代碼中，我成功使用了這樣的代碼:

In mytransport code I success use code like this:

在 MyProjectmytransportsrcmainjavacommycompanyandroidmytransportutilMyUtil.java

片段:

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;

public class JSONUtil {
private static GsonBuilder gsonbuilder = new GsonBuilder();

不錯.

現在我想在主應用程序中使用 gson 庫.所以在主應用程序我試試這個

Now I want in main app to use gson lib. So in main app I try this in

MyProjectandroidMyProjectappsrcmainjavacommycompanyandroidmyprojectmainMainApp.java

片段

import android.app.Application;
import android.content.Context;
public class MainApp extends Application {

private static GsonBuilder gsonbuilder = new GsonBuilder();

但我得到編譯錯誤:

Cannot resolve symbol 'GsonBuilder'

為什么在主應用中找不到gson lib?我通過 mytransport 模塊使用它TRANSITIVE

Why it can't find gson lib in main app? I use it TRANSITIVE by mytransport module

推薦答案

使用 api 而不是 implementation.

在mytransport/build.gradle:

dependencies {
   //...
   api 'com.google.code.gson:gson:2.8.5'
}

只是一個例子.

在library/build.gradle:

dependencies {
    api project(':libraryA')
}

在app/build.gradle:

dependencies {
    api project(':library')
}

在您的應用中，您將能夠訪問 both library 和 libraryA.

In your app you will be able to access both library and libraryA.

使用實現配置:

在library/build.gradle:

dependencies {
    implementation project(':libraryA')
}

在app/build.gradle:

dependencies {
    implementation project(':library')
}

在這種情況下，在您的應用中，您無法訪問 libraryA 方法.

In this case in your app you can't access the libraryA methods.

這篇關于無法通過子模塊的傳遞使用找到 lib的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！