Butter Knife注入步骤

1 : build.gradle  project添加

classpath'com.android.tools.build:gradle:2.1.0'

classpath'com.neenbedankt.gradle.plugins:android-apt:1.8'

2 :buil.gradle app添加

applyplugin:'android-apt'

compile'com.jakewharton:butterknife:8.2.1'

apt'com.jakewharton:butterknife-compiler:8.2.1'

3 :去setting/plugins/添加butterknife

然后restart一下就ok

注意：ButterKnife.bind(this); 要放在布局文件下方