ButterKnife绑定<include>及标签中的子组件

在navigation_bar.xml中写了一个导航栏，使用<include>标签引进每一个Activity中，当使用黄油刀直接绑定导航栏中的按钮ID时失败。经过网友提示才知道，黄油刀不能直接绑定<include>标签内组件的ID。可以给<include>标签设置ID，通过ID绑定到Activity的View中：ButterKnife.bind(R.layout.activity_main, navigationView); navigation_bar.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:gravity="center"
    android:background="#3F4145"
    android:orientation="horizontal">

    <ImageButton
        android:id="@+id/ib_nav_question"
        android:layout_width="24dp"
        android:layout_height="24dp"
        android:layout_marginLeft="24dp"
        android:layout_marginRight="24dp"
        android:background="@drawable/ic_nav_question" />

    <ImageButton
        android:id="@+id/ib_nav_back"
        android:layout_width="24dp"
        android:layout_height="24dp"
        android:layout_marginLeft="24dp"
        android:layout_marginRight="24dp"
        android:background="@drawable/ic_nav_back" />

    <ImageButton
        android:id="@+id/ib_nav_menu"
        android:layout_width="24dp"
        android:layout_height="24dp"
        android:layout_marginLeft="24dp"
        android:layout_marginRight="24dp"
        android:background="@drawable/ic_nav_menu" />

    <Button
        android:id="@+id/bt_nav_page"
        android:layout_width="24dp"
        android:layout_height="24dp"
        android:layout_marginLeft="24dp"
        android:layout_marginRight="24dp"
        android:background="@drawable/ic_nav_page"
        android:text="2"
        android:textColor="#FFFFFF"
        android:textSize="10sp" />

    <ImageButton
        android:id="@+id/ib_nav_refresh"
        android:layout_width="24dp"
        android:layout_height="24dp"
        android:layout_marginLeft="24dp"
        android:layout_marginRight="24dp"
        android:background="@drawable/ic_nav_refresh" />

</LinearLayout>

MainActivity对应的xml文件R.layout.activity_main

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    
    <include layout="@layout/navigation_bar"
        android:id="@+id/navigation_bar"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:visibility="visible"
        app:layout_constraintBottom_toBottomOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

在MainActivity中：

public class MainActivity extends BaseActivity {
	//用黄油刀绑定include进来的组件
    @BindView(R.id.navigation_bar)
    LinearLayout navigationView;
    
    private Unbinder unbinder;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        unbinder=ButterKnife.bind(R.layout.activity_main, navigationView);
    }				

  //include按钮的点击事件
  @OnClick({R.id.ib_nav_question, R.id.ib_nav_back, R.id.ib_nav_menu, R.id.bt_nav_page, R.id.ib_nav_refresh})
      public void onClick(View view) {
          switch (view.getId()) {
              case R.id.ib_nav_question:
                  break;
              case R.id.ib_nav_back:
                  //退出app
                  setResult(Activity.RESULT_OK);
                  finishAndRemoveTask();
                  break;
              case R.id.bt_nav_page:
                  //活动栈
                  IntentUtil.intentToWebAppTask(MainActivity.this, null);
                  break;
              case R.id.ib_nav_menu:
              case R.id.ib_nav_refresh:
                  break;
          }
      }
      
      @Override
    protected void onDestroy() {
        super.onDestroy();
        //解绑，释放资源
        unbinder.unbind();
    }
}