使用butterknife

如果as版本低于2.2

配置工程的build.gradle

buildscript {    repositories {        jcenter()    }    dependencies {        classpath 'com.android.tools.build:gradle:2.1.3'        /** 引入该类库插件 */        classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'    }}

配置module的build.gradle

apply plugin: 'android-apt'dependencies {    compile fileTree(dir: 'libs', include: ['*.jar'])    testCompile 'junit:junit:4.12'    compile 'com.android.support:appcompat-v7:24.2.0'    /** 添加下面依赖 */    compile 'com.jakewharton:butterknife:8.3.0'    apt 'com.jakewharton:butterknife-compiler:8.3.0'}