Как скрыть панель инструментов при прокрутке контента в Android




android-support-library android-toolbar (3)

Вы должны сделать много изменений в вашем макете. сначала используйте CoordinatorLayout в activity_main.XML как показано ниже (измените тему согласно вашему требованию).

<?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:id="@+id/main_content"
    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/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

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

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

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

в content_main.XML используйте android.support.v4.widget.NestedScrollView вместо ScrollView .

также используйте app:layout_behavior="@string/appbar_scrolling_view_behavior" внутри android.support.v4.widget.NestedScrollView как app:layout_behavior="@string/appbar_scrolling_view_behavior" ниже.

<android.support.v4.widget.NestedScrollView
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        xmlns:android="http://schemas.android.com/apk/res/android" 
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

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

            <TextView
                android:id="@+id/textone"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="hello world jheds sdjhs jds sjbs skjs ksjs kksjs ksj sdd dskd js sk "
                android:textSize="25dp"
                android:textStyle="bold" />

            /// Add your other code here

            </LinearLayout>

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

Я пытаюсь скрыть панель инструментов, когда я прокручиваю текст и изображение с контентом, здесь я использую scrollView для получения прокрутки контента, когда, когда я прокручиваю контент вверх, как скрыть панель инструментов, пожалуйста, скажите мне, как получить

вот мой код XMl

content_main.XML

<android.support.v4.widget.NestedScrollView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
app:layout_behavior="@string/appbar_scrolling_view_behavior">


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

<LinearLayout
    android:paddingTop="?android:attr/actionBarSize"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:id="@+id/textone"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:textSize="23dp"
        android:textStyle="bold"
        android:text="hello world jheds sdjhs jds sjbs skjs ksjs kksjs ksj sdd dskd js sk "/>

    <ImageView
        android:id="@+id/imge"
        android:layout_width="match_parent"
        android:layout_height="250dp"
        android:src="@drawable/imag_bg"/>


    <TextView
        android:id="@+id/texttwo"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:text="Pretty good, the Toolbar is moving along with the list and getting back just as we expect it to. This is thanks to the restrictions that we put on the mToolbarOffset variable.
        If we would omit checking if it’s bigger than 0 and lower than mToolbarHeight then when
        we would scroll
         up our list, the Toolbar would move along far away off the screen, so to show it back you
         would have to scroll the list down to 0. Right now it just scrolls up to mToolbarHeight
         position and not more so it’s “sitting” right above the list all of the time and if we
         start scrolling down, we can see it immediately showing.



          up our list, the Toolbar would move along far away off the screen, so to show it back you
         would have to scroll the list down to 0. Right now it just scrolls up to mToolbarHeight
         position and not more so it’s “sitting” right above the list all of the time and if we
         start scrolling down, we can see it immediately showing

          up our list, the Toolbar would move along far away off the screen, so to show it back you
         would have to scroll the list down to 0. Right now it just scrolls up to mToolbarHeight
         position and not more so it’s “sitting” right above the list all of the time and if we
         start scrolling down, we can see it immediately showing

          up our list, the Toolbar would move along far away off the screen, so to show it back you
         would have to scroll the list down to 0. Right now it just scrolls up to mToolbarHeight
         position and not more so it’s “sitting” right above the list all of the time and if we
         start scrolling down, we can see it immediately showing

          up our list, the Toolbar would move along far away off the screen, so to show it back you
         would have to scroll the list down to 0. Right now it just scrolls up to mToolbarHeight
         position and not more so it’s “sitting” right above the list all of the time and if we
         start scrolling down, we can see it immediately showing

          up our list, the Toolbar would move along far away off the screen, so to show it back you
         would have to scroll the list down to 0. Right now it just scrolls up to mToolbarHeight
         position and not more so it’s “sitting” right above the list all of the time and if we
         start scrolling down, we can see it immediately showing
        It works pretty well, but this is not what we want. It feels weird that you can
        stop it in the middle of
        the

         scroll and the Toolbar will stay half visible. Actually this is how it’s done in Google Play
         Games app
        which I consider as a bug

        It works pretty well, but this is not what we want. It feels weird that you can
        stop it in the middle of
        the
         scroll and the Toolbar will stay half visible. Actually this is how it’s done in Google Play
         Games app
        which I consider as a bug
        It works pretty well, but this is not what we want. It feels weird that you can
        stop it in the middle of
        the
         scroll and the Toolbar will stay half visible. Actually this is how it’s done in Google Play
         Games app
        which I consider as a bug."/>




</LinearLayout>

<View
    android:layout_width="wrap_content"
    android:layout_height="30dp" />
<LinearLayout

    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <Button
         android:text="hai"
         android:layout_width="160dp"
         android:layout_height="match_parent" />
    <Button
         android:text="hello"
         android:layout_width="160dp"
         android:layout_height="match_parent" />


</LinearLayout>

activity_main.XML

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

    <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" />


Вы можете найти мое решение по вашему вопросу здесь: панель инструментов Android + макет вкладки + ящик, скрыть панель инструментов при прокрутке и переместить TabLayout вверх

Это рабочее решение, но это не лучший способ реализовать эту анимацию. С CoordiantorLayout вы можете связать свои взгляды и поведение прокрутки.

Вы можете найти больше информации здесь: https://developer.android.com/reference/android/support/design/widget/CoordinatorLayout.html

Когда у меня будет время, я постараюсь опубликовать пример кода для вас.


Это лучший сценарий использования CoordinatorLayout в вашем приложении. CoordinatorLayout - сверхмощный FrameLayout, у которого на рукавах есть множество изящных анимационных трюков.

Библиотека Design представляет CoordinatorLayout, макет, который обеспечивает дополнительный уровень управления событиями касания между дочерними представлениями, то, чем пользуются многие компоненты библиотеки Design.

Вы можете начать с this и this урока.







android-support-design