android coordinatorlayout与视差标题中的linearlayout？

Question

I've been looking everywhere for this w/ no luck. The Android Support Design library seems to be designed for doing parallax only on an image, but I want a header that's more like a framelayout or linearlayout with a bunch of elements including an image w/ overlaid text and gradients on top of it. Ie, a more complicated header that shrinks w/ text that parallaxes into the status bar title w/ a different font size.

Does anyone know how to do this? I tried nesting a NestedScrollLayout but that's not what I want to do either :-(

Answer 1

You can use the CollapsingToolbarLayout

<?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:background="@android:color/white"
android:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="@dimen/detail_backdrop_height"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    android:fitsSystemWindows="true">

    <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="?attr/colorPrimary"
        app:expandedTitleMarginStart="10dp"
        android:background="@color/nav_view_header"
        app:expandedTitleMarginEnd="64dp">

        <RelativeLayout
            android:id="@+id/header_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scaleType="centerCrop"
            android:src="@drawable/ic_vp_placeholder_largo"
            android:fitsSystemWindows="true"
            app:layout_collapseMode="parallax" >

            <!-- Your progress bar, rating stars, text, a gradient, etc. -->


        </RelativeLayout>

        <android.support.v7.widget.Toolbar
            android:id="@+id/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.CollapsingToolbarLayout>

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

<android.support.v4.widget.NestedScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/nestedScroll"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

    <!-- Your scrolling content -->

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

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