Gradle (1)---detailed

1, Gradle directory resolution

Gradle is based on Groovy language and is oriented to Java applications. An automated build tool based on DSL (domain-specific language) syntax.
Gradle This tool integrates construction, testing, publishing, and other functions such as software packaging, generating annotation documents, and more.
Before eclipse used ant to build the software, it needed to configure a lot of XML, but it was not needed in Gradle.

The current mainstream packaging methods are ant,maven,gradle. Gradle is an automated building tool developed in recent years to address the cumbersome code on ant builds.
For example, when you publish a multi-channel package on ant, you need to write your own script to replace the channel name, but you don't need it in gradle. Built-in support for multi-channel packaging. 2, the Gradle file structure

./build.gradle.
/gradle.properties.
/gradlew
/gradlew.bat.
/local.properties
./ Setting.gradle.
/xxx.iml.
/app/build.gradle
/app/app.iml.
/app/proguard-rules.pro

3./builld.gradle and/app/build.grade

Gradle the configuration file to read when the project is automatically compiled. For example, specify the project's dependency package.
There are two build.grade, one is global, the other is inside the module.
The global Build.grade is mainly set to declare the warehouse source, gradle version number description, and so on.

./build.gradle

Buildscript {
    repositories {
        //Declaration warehouse source, for example, we built an Android library and now want to upload the library to Jcenter for others to use, you can upload it to jcenter
        // Detailed upload steps See: http://www.jcodecraeer.com/a/anzhuokaifa/Android_Studio/2015/0227/2502.html
        jcenter ()
    }
    dependencies {
        //Description Gradle version number
        classpath ' com.android.tools.build:gradle:1.3.0 '

        //Note:do not place your application dependencies here; They belong
        //In the individual module Build.gradle files
    }//

All items inherit this configuration
allprojects {
    repositories {
        mavenlocal ()
        jcenter ()
    }
}

./app/build.grade set up the module's gradle build configuration

Description of this module is an Android project, if it is a multiple module development, there may be values for Java/war Apply plugin: ' com.android.application '//configuration of all Android built parameters Android {//compile to make Buildtoolsversion "23.0.1" Defaultconfig {//package name A with SDK version compilesdkversion 23//Compilation tool version Pplicationid "Com.awesomeproject"//SDK Minimum support version minsdkversion 16//target SDK version, if the target device API version is exactly equal to this value, will not
        Open compatibility Check for this program Targetsdkversion 22//Version number Versioncode 1 Versionname "1.0"//native NDK {abifilters "armeabi-v7a", "x86"}} buildtypes {//Publish settings Rele ASE {//whether to confuse minifyenabled false//confuse using file Proguardfiles Getdefaultprog Uardfile (' Proguard-android.txt '), ' Proguard-rules.pro '}}//Dependent toolkit dependencies {compile Filetree (di R: ' Libs ', include: [' *.jar ']) compile ' com.android.support:appcompat-v7:23.0.0 ' compile ' com.facebook.react:react -native:0.11.+ '}

4, other documents

./app/proguard-rules.pro
This is the same as the above, confusing file

./gradle.properties
Grade the configuration of the operating environment, such as how much memory to use.

./gradlew and./gradlew.bat
Automatically completes the Gradle environment the script, under the Linux and the Mac direct operation Gradlew will automatically complete the GRADLE environment construction.

./local.properties
Configure the SDK or NDK environment path, which may be different on each machine, so it should not go into the version library

./setting.gradle
Management of the entire project, such as which modules are included in the project.

./XXX.IML and./app/app.iml
IML is a IntelliJ module file. IntelliJ is a Java IDE. Android Studio is an IDE developed based on the open source IntelliJ idea.
So the IDE features of Android Studio need to have a. iML to use. For example, if we delete the iML file, we may not see some catalogs in Android studio.

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