工具栏无法响应Listview滚动事件

Question

I have an activity which contains a custom toolbar and a simple listview. I want the toolbar respond when the listview is scrolled. However, it is not working.

Here is the .xml file

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    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="com.abdralabs.talksee.HistoryActivity">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/history_appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fitsSystemWindows="true"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/history_toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/title"
            app:layout_scrollFlags="scroll|enterAlways">

        </android.support.v7.widget.Toolbar>

    </android.support.design.widget.AppBarLayout>


    <ListView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/lv_history"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

    </ListView>

Here is the .java file

public class HistoryActivity extends AppCompatActivity {
    Toolbar toolbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_history);
        toolbar = (Toolbar)findViewById(R.id.history_toolbar);
        /*
        setSupportActionBar(toolbar);
        getSupportActionBar().setHomeButtonEnabled(true);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        */
        toolbar.setTitle("History");
        String[] rcArray = {"A","B","C","D","A","B","C","D","A","B","C","D","A","B","C","D","A","B","C","D","A","B","C","D","A","B","C","D"};



        ArrayAdapter adapter = new ArrayAdapter<String>(this,
                R.layout.list_history, rcArray);

        ListView listView = (ListView) findViewById(R.id.lv_history);
        listView.setAdapter(adapter);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        /*
        switch (item.getItemId()){
            case android.R.id.home:
                NavUtils.navigateUpFromSameTask(this);
                break;
        }
        */
        return super.onOptionsItemSelected(item);
    }
}

What have I done wrong?

EDIT: In response to rafsanahmad007's answer I have applied the changes as per your suggestion but still there is no change. When I scroll through the ListView there is no change to the size of the ToolBar. However, when I click on the ToolBar itself and make an up & down motion the ToolBar moves up & down too. What I want to achieve is, when I scroll the ListView downwards the ToolBar should collapse and when I scroll the ListView upwards the ToolBar should get to its normal size/position.

The following pictures depict how the ToolBar is responding currently.

As you can see in the above pics, the ListView is not being scrolled, but the ToolBar itself is being scrolled. What I want is, when I scroll the ListView the ToolBar should scroll only during that time. I hope I have clarified myself.

Answer 1

try this:

 <android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fitsSystemWindows="true"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:minHeight="80dp"
        app:layout_scrollFlags="scroll|enterAlwaysCollapsed" />

</android.support.design.widget.AppBarLayout>

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