DataBinding (一) Kotlin 环境下配置

写博客仅为了拿来当学习笔记使用,欢迎指点不足的地方,相互学习,上来就喷的,勿扰.谢谢. 

一、在Module的build.gradle android模块中添加如下配置

    1.添加pply plugin: 'kotlin-kapt'//kapt 插件

    2.开启dataBinding注意与buildTypes 同级

    3. 添加依赖"com.android.databinding:compiler:$gradle_version"

       如果在3.2前的as版本要加前缀kapt ,3.2以上版本，就不用使用kapt，

       kapt "com.android.databinding:compiler:$gradle_version” 

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'kotlin-kapt'//kapt 插件

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.1"
    defaultConfig {
        applicationId "com.example.goodgoodstudydaydayup"
        minSdkVersion 22
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

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


    //开启dataBinding
    dataBinding {
        enabled = true
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.core:core-ktx:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'

    implementation 'com.android.support:design:29.0.1'

    // 添加依赖
    "com.android.databinding:compiler:$gradle_version"


}

 

二、在项目的build.gradle中配置:

buildscript {
    ext.kotlin_version = '1.3.41'
    ext.gradle_version = '3.2.0'  // 设置版本号

    repositories {
        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.0'

        // 这行
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
  
    }
}

allprojects {
    repositories {
        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public' }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}