The use of butterknife and the solution of a common mistake

　　The first is butterknife's dependencies.

　　Enter the following code under dependencies in the build.gradle file, and then refactor the program once to complete.

　　　　compile'com.jakewharton:butterknife:5.1.1'But
　after I add dependencies, butterknife often has errors, and later I know that I need to add the following code when an error occurs. Add the following code in the android{defaultConfig{} of the build.gradle file as follows code
　　　　

　　　　javaCompileOptions {
　　　　　　annotationProcessorOptions {
　　　　　　includeCompileClasspath = true
　　　　}

　　From file->seting->Plugins, you can download a ButterKnife Zelezny plug-in. With this plug-in, you can quickly bind controls and onclick events by performing the following operations.

　　First right-click on the activity in setContentView(R.layout.activity_main); select Generate and do the following

　　Finally, a menu will come out through which to bind controls and events