我有一个带有CollapsingToolbarLayout和NestedScrollView以及FloatingActionButton的CoordinatorLayout。在CollapsingToolbarLayout中有一个ImageView,其layout_collapseMode设置为parallax。 FloatingActionButton固定为CollapsingToolbarLayout。当该布局折叠或向上滚动时,图像被隐藏,甚至是FloatingActionButton。我希望在图像消失后可以看到FloatingActionButton。
这是布局代码:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.AppBarLayout
android:id="@+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" >
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
android:fitsSystemWindows="true"
app:contentScrim="@color/custom_color_2"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp" >
<com.eventizon.widgets.SquareImageView
android:id="@+id/imageViewEvent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_collapseMode="parallax"
android:adjustViewBounds="true"
android:fitsSystemWindows="true"
android:scaleType="fitXY" />
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
android:clipToPadding="false" >
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
app:cardElevation="@dimen/spacing_medium"
app:cardUseCompatPadding="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="@+id/textViewEventName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/spacing_large"
android:layout_marginRight="@dimen/spacing_large"
android:layout_marginTop="@dimen/spacing_large"
android:textAppearance="@style/TextAppearance.AppCompat.Headline" />
<TextView
android:id="@+id/textViewEventDate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/spacing_large"
android:layout_marginRight="@dimen/spacing_large"
android:layout_marginTop="@dimen/spacing_large"
android:text="sun, oct 4 - mon, oct 12"
android:textAllCaps="true"
android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
<TextView
android:id="@+id/textViewEventOrganizer"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/spacing_large"
android:layout_marginRight="@dimen/spacing_large"
android:layout_marginTop="@dimen/spacing_large"
android:text="By - Pritam Kadam"
android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
<TextView
android:id="@+id/textViewEventDescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/spacing_large"
android:layout_marginRight="@dimen/spacing_large"
android:layout_marginTop="@dimen/spacing_large"
android:text="@string/lorem_ipsum"
android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
<fragment
android:id="@+id/fragmentGoogleMap"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/spacing_large" />
</LinearLayout>
</android.support.v7.widget.CardView>
</FrameLayout>
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:id="@+id/floatingActionButtonOptions"
style="@style/FabStyle"
app:layout_anchor="@id/collapsing_toolbar"
app:layout_anchorGravity="bottom|right|end" />
答案 0 :(得分:0)
{{1}}
这只是一个提示,你可能要尝试其他事件监听器。