Question

在我的情况下滚动时如何隐藏工具栏？我有抽屉和嵌套片段的Activty。在Pages中滚动时我需要隐藏工具栏。怎么样？请帮我。

P：对不起我的英语。

活动布局：

- "MQINEEIR"  - match, same
- "MQINEELR"  - match, one I is L the othe is L
- "MQLNEELR"  - match, both I are L 
- MQXNEEIR   - match becouse X stand for I, but ideally I would like to allow only L. But for simplicity, I will allow it.

app_bar_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
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:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">

<include
    layout="@layout/app_bar_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:fitsSystemWindows="true"
    app:headerLayout="@layout/app_nav_header_main"
    app:menu="@menu/main_drawer" />

</android.support.v4.widget.DrawerLayout>

content_main.xml：

<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay"
    app:elevation="0dp">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/AppTheme.PopupOverlay" />

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

<include layout="@layout/content_main" />

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

使用TabLayout和ViewPager进行分段：

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
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:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/app_bar_main"/>

页面片段：

<ViewFlipper xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/flipper"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<include
    layout="@layout/layout_please_wait"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.design.widget.TabLayout
        android:id="@+id/tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?attr/colorPrimary"
        android:elevation="2dp"
        android:minHeight="?attr/actionBarSize"
        android:theme="@style/AppTheme.AppBarOverlay"
        app:tabIndicatorColor="@android:color/white" />

    <android.support.v4.view.ViewPager
        android:id="@+id/pager"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</LinearLayout>

<include
    layout="@layout/layout_no_internet"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />
</ViewFlipper>

Answer 1

ListView无法与CoordinatorLayout合作。您必须使用RecyclerView。

这是因为ListView没有实现像NestedScrollingChild这样的界面，这对于滚动行为至关重要。

有关详细信息，请打开this。

滚动片段时如何隐藏工具栏？

1 个答案: