Android Material风格的应用(五)--CollapsingToolbar

Collapsing Toolbar

DetailActivity.java

activity_detail.xml

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

<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/collapsing_toolbar"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="@dimen/article_keylines"
app:expandedTitleMarginStart="@dimen/md_keylines"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/image"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax"/>
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"></android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>

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

CollapsingToolbarLayout collapsingToolbarLayout = (CollapsingToolbarLayout)findViewById(R.id.collapsing_toolbar);