当我在android

Question

当我使用内容滚动文字和图片时，我试图隐藏我的工具栏， 这里我使用scrollView获取滚动内容时，当我滚动内容如何隐藏工具栏时请任何人告诉我如何获取

这里是我的XMl代码

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中

<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" />

Answer 1

您必须在两种布局中进行许多更改。首先在Entities中使用CoordinatorLayout，如下所示（根据您的要求更改主题）。

activity_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: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> 中的

使用content_main.XML代替android.support.v4.widget.NestedScrollView。

也可以在ScrollView内使用app:layout_behavior="@string/appbar_scrolling_view_behavior"，如下所示。

android.support.v4.widget.NestedScrollView

Answer 2

这是在您的应用中使用CoordinatorLayout的最佳方案。 CoordinatorLayout是一个超级强大的FrameLayout ，它的袖子上有很多漂亮的动画技巧。

  

Design库引入了CoordinatorLayout，这是一种布局   提供对其间的触摸事件的附加级别的控制   子视图，设计中的许多组件   图书馆充分利用。

您可以从this和this教程开始。

Answer 3

在Coordinator Layout中包装activity_main.xml，使其成为父布局。

 $scope.$on('$stateChangeStart', function (event, toState, toParams, fromState, fromParams) {
    if ($scope.isChanged) {
        myShowOkCancelDialog(NotifyType.Warn, 'do you want leave?', function (ok) {
            if (ok) {
                $state.go(toState, toParams);
            }
        })
        event.preventDefault();
    }
});

Answer 4

您可以在此处找到有关您问题的解决方案： Android Toolbar + Tab Layout + Drawer, Hide toolbar when scrolling and take TabLayout to the top

这是一个有效的解决方案，但它不是实现此动画的最佳方式。使用CoordiantorLayout，您可以关联您的观点及其滚动行为。

您可以在此处找到更多信息：https://developer.android.com/reference/android/support/design/widget/CoordinatorLayout.html

当我有时间时，我会尝试为您发布代码示例。