工具栏无法响应Listview滚动事件

时间:2017-03-10 19:43:34

标签: android android-layout listview android-coordinatorlayout

我有一个包含自定义工具栏和简单列表视图的活动。滚动列表视图时,我希望工具栏响应。但是,它无法正常工作。

这是.xml文件

<?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>

这是.java文件

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);
    }
}

我做错了什么?

修改 回应rafsanahmad007的回答 我已根据您的建议应用了这些更改,但仍然没有变化。 当我滚动ListView时,ToolBar的大小没有变化。但是,当我点击ToolBar本身并制作一个&amp;向下移动工具栏向上移动&amp;也是。我想要实现的是,当我向下滚动ListView时,ToolBar会崩溃,当我向上滚动ListView时,ToolBar应该达到正常的大小/位置。

以下图片描述了ToolBar当前的响应方式。 enter image description here

enter image description here

enter image description here

正如您在上面的图片中看到的那样,ListView没有滚动,但工具栏本身正在滚动。我想要的是,当我滚动ListView时,ToolBar应该只在那段时间滚动。我希望我已经澄清了自己。

1 个答案:

答案 0 :(得分:0)

试试这个:

 <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>

您也可以从Here

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