dagger2的基本使用一

dagger2是一种依赖注入框架，为了解决繁琐的依赖关系

基本使用

1 首先在根build中配置

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
    }
}

2 在app的build中添加dependencies

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    testCompile 'junit:junit:4.12'
    //dagger2
    compile 'com.google.dagger:dagger:2.10'
    apt 'com.google.dagger:dagger-compiler:2.10'
    provided 'org.glassfish:javax.annotation:10.0-b28'
}

之后就可以正常的使用dagger2了