我使用应用支持和CoordinatorLayout
。我能够实现CollapsingToolbarLayout
与ImageView
和Toolbar
在滚动时隐藏。我对标签很困难 - TabLayout
没有崩溃,这很好。问题是它看起来不太好 - 我希望它使用图片的底部作为背景。
我在CollapsingToolbarLayout
内移动了TabLayout,然后它将图片用作背景,但有两个问题 - 标签位于屏幕顶部,滚动时隐藏它们。
我希望达到它将位于图片底部的效果
当其他部分滚动时,它将保持在屏幕顶部
布局:
<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">
<android.support.design.widget.AppBarLayout
android:id="@+id/main.appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true"
>
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/main.collapsing"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|enterAlways|snap"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="4dp"
app:expandedTitleMarginEnd="64dp"
>
<ImageView
android:id="@+id/main.backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
android:src="@drawable/digit1_hill"
app:layout_collapseMode="parallax"
/>
<android.support.v7.widget.Toolbar
android:id="@+id/main.toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin"
/>
<android.support.design.widget.TabLayout
android:id="@+id/main.tabs"
android:layout_width="fill_parent"
android:layout_height="?attr/actionBarSize"
app:tabSelectedTextColor="?android:attr/textColorPrimaryInverse"
app:tabIndicatorColor="?android:attr/textColorPrimaryInverse"
app:tabIndicatorHeight="4dp"
/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/dashboard.viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
/>
</android.support.design.widget.CoordinatorLayout>
答案 0 :(得分:2)
您的Toolbar
应该app:layout_scrollFlags="scroll|enterAlways"
CollapsingToolbarLayout
app:layout_scrollFlags="scroll|exitUntilCollapsed"
和TabLayout
android:layout_gravity="bottom"
<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">
<android.support.design.widget.AppBarLayout
android:id="@+id/main.appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true">
<!-- Fit the system windows for your CollapsingToolbarLayout
also set your height to wrap_content and give image a height-->
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/main.collapsing"
android:fitsSystemWindows="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="4dp"
app:expandedTitleMarginEnd="64dp">
<ImageView
android:id="@+id/main.backdrop"
android:layout_width="match_parent"
android:layout_height="244dp"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
android:src="@drawable/digit1_hill"
app:layout_collapseMode="parallax"/>
<!-- Tell your toolbar to scroll|enterAlways -->
<android.support.v7.widget.Toolbar
android:id="@+id/main.toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:layout_scrollFlags="scroll|enterAlways"/>
<!-- add layout_gravity="bottom" -->
<android.support.design.widget.TabLayout
android:id="@+id/main.tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
app:tabSelectedTextColor="?android:attr/textColorPrimaryInverse"
app:tabIndicatorColor="?android:attr/textColorPrimaryInverse"
app:tabIndicatorHeight="4dp"
android:layout_gravity="bottom"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/dashboard.viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>
试试这个:
<style name="NewAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Include all items from original theming -->
</style>
<强>更新强> 此外,您应该切换主题或添加新主题:
<style name="Invisible" parent="AppTheme">
<item name="android:textColor">@android:color/transparent</item>
</style>
并隐藏标题创建样式:
app:collapsedTitleTextAppearance="@style/Invisible"
然后将其设置为collapsedTitleTextAppearance:
{{1}}