How to use Android Gradle without multi-project-CodePudding

I would like to create an android build with a single build.gradle file. How to do that?

CodePudding user response：

You need at least two build.gradles, a project-level one and a module-level one. They are not the same. You can omit neither of them.

CodePudding user response：

It actually is possible.

The whole problem when trying to create an Android build with a single build.gradle comes from the fact, that a plugins block of the top-level build.gradle can only use plugins from Gradle plugin portal and cannot address anything from buildscript's classpath.

However, there is a pluginManagement block you can add to settings.gradle, that can be used to modify how plugins are resolved.

A working example:

// settings.gradle.kts

rootProject.name = "android_app"

pluginManagement {
    repositories {
        gradlePluginPortal()
        google()
    }
    resolutionStrategy {
        eachPlugin {
            if (requested.id.name.startsWith("com.android")) {
                useModule("com.android.tools.build:gradle:${requested.version}")
            }
        }
    }
}

// build.gradle.kts

plugins {
    id ("com.android.application") version "4.2.2"
}

group = "pl.gieted.android_app"
version = "1.12-SNAPSHOT"

android {
    compileSdkVersion(31)
    defaultConfig {
        applicationId = group.toString()
        minSdkVersion(24)
        targetSdkVersion(31)
        versionName = version.toString()
    }
    compileOptions {
        sourceCompatibility = JavaVersion.VERSION_1_8
        targetCompatibility = JavaVersion.VERSION_1_8
    }
    buildTypes {
        getByName("release") {
            isMinifyEnabled = false
        }
    }
}

CodePudding user response：

As hata answered , you need at least two .

Every project have a top level gradle file and modules gradle file\files .

the build.gradle (Project:My-app) file in the root folder usually contains the common configuration for all other modules .

while modules (Module:app) are isolated piece of the bigger project , they work together to form the whole project . and the build.gradle file will only apply to this module .

If you only want to have one module such as app , the advantages of the root build.gradle is not shown clearly , because you can configure everything in the module gradle build file , even overwrite the root gradle file .

BUT if your project have 4 moudles and it happened that they have the same dependency X , once you want to change this , you will need to change this individually with 4 modules build.gradle .