Android 获取include标签中的控件属性并设置事件

<?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="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <androidx.appcompat.widget.Toolbar
        android:id="@+id/tool_bar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
        />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    tools:context=".activity.IncludeActivity">
    <include android:id="@+id/tool_include" layout="@layout/include_toolbar"/>
</LinearLayout>

public class IncludeActivity extends AppCompatActivity {
    private Toolbar toolbar;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_include);
        //第一个id是我们给include标签设置的id,第二个id就是公共的layout中的具体控件的id
        toolbar = findViewById(R.id.tool_include).findViewById(R.id.tool_bar);
        TextView textView = new TextView(this);
        textView.setText("我是Toolbar");
        toolbar.addView(textView);
        setSupportActionBar(toolbar);
    }
}