Android 工具栏折叠模式问题 [英] Android Toolbar collapseMode issue
问题描述
我有一个问题,使带有标题文本的工具栏"在 CollapsingToolbarLayout 中向上滚动时不折叠.
I have an Issue making " toolbar with Title text " Not to Collapse while scrolling upwards in CollapsingToolbarLayout.
我尝试了一些调整,在我的 android.support.v7.widget.Toolbar 中使用 app:layout_collapseMode="none" 作为属性,但它不起作用.可能是我的布局有问题.
I have tried a few tweaks, by using app:layout_collapseMode="none" as attribute in my android.support.v7.widget.Toolbar but its not working. Maybe there is a problem with my layout.
以下是我想要实现的目标.
但是当我滚动到顶部时,Toolbar 也会崩溃,并且 tabBar 也会在里面滚动,变得不可见.下面是我现在所拥有的.
But when i scroll to the top, the Toolbar also collapse, and the tabBar also scrolls inside, and become non-visible. below is what i have now.
这是我的布局代码
<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.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="250dp"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7">
<ImageView
android:id="@+id/backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#20000000" />
</FrameLayout>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="none"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Application Title"
android:textColor="#fff"
android:textSize="18sp" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways">
<android.support.design.widget.TabLayout
android:id="@+id/detail_tabs"
android:layout_width="match_parent"
android:layout_height="60dp"
app:layout_collapseMode="pin"
android:background="#00000000"
app:tabSelectedTextColor="#3498db"
app:tabTextColor="#000" />
/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#333"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
依赖
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile "com.android.support:appcompat-v7:22.2.1"
compile "com.android.support:support-annotations:22.2.1"
compile "com.android.support:design:22.2.1"
compile 'com.android.support:recyclerview-v7:22.2.1'
compile 'com.android.support:cardview-v7:22.2.1'
}
推荐答案
试试这个...
您必须在 CollapsingToolbarLayout 中使用 app:layout_scrollFlags="scroll|exitUntilCollapsed" 而不是 app:layout_scrollFlags="scroll|enterAlways">
You have to use app:layout_scrollFlags="scroll|exitUntilCollapsed" instead of app:layout_scrollFlags="scroll|enterAlways" inside the CollapsingToolbarLayout
并在工具栏
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:contentScrim="?attr/colorPrimary" >
<FrameLayout
android:layout_width="match_parent"
android:layout_height="250dp"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7" >
<ImageView
android:id="@+id/backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop" />
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#20000000" />
</FrameLayout>
<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" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Application Title"
android:textColor="#fff"
android:textSize="18sp" />
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
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