1，CoordinatorLayout
android:fitsSystemWindows="true"
2，AppBarLayout
android:background="#ffffff" // 設置頭部的背景色，替換系統顏色
android:fitsSystemWindows="true"
3，CollapsingToolbarLayout
android:fitsSystemWindows="true"
app:contentScrim="@color/color_FFFFFF". // 設置標題欄在摺疊後的內容顏色
app:statusBarScrim="@color/color_FFFFFF" // 設置標題欄在摺疊後的狀態欄顏色
3.1 內部的控件.(滑動隱藏的佈局，可以解決滑動後佈局消失時與toolbar有重疊部分的問題)
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="1"
3.2 toolbar （設置滑動toolbar不隱藏）
app:layout_collapseMode="pin"
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical"
>
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="@dimen/dp_220"
android:animateLayoutChanges="true"
android:background="#ffffff"
android:fitsSystemWindows="true"
app:layout_behavior=".weigit.FlingBehavior"
android:stateListAnimator="@animator/show_toolbar"
>
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsingToolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="@color/color_FFFFFF"
app:statusBarScrim="@color/color_FFFFFF"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:titleEnabled="false"
app:toolbarId="@id/toolbar"
>
<include layout="@layout/layout_org_home_head" />
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
style="@style/Base.Widget.AppCompat.Toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@android:color/transparent"
app:contentInsetStartWithNavigation="0dp"
app:layout_collapseMode="pin"
app:navigationIcon="@drawable/ice_back"
app:title="@string/iceTitle"
app:titleTextColor="@color/color_8F8B8B"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/plant_detail_scrollview"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
>
<include layout="@layout/common_recycle_view_layout" />
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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="@dimen/dp_220"
android:fitsSystemWindows="true"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:layout_constraintVertical_bias="1"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="1"
>
<ImageView
android:id="@+id/iv_head"
android:layout_width="@dimen/dp_65"
android:layout_height="@dimen/dp_65"
android:layout_marginStart="@dimen/dp_25"
android:layout_marginTop="@dimen/dp_10"
android:scaleType="centerCrop"
android:src="@drawable/institutions_head"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toTopOf="@id/tv_authority"
android:layout_marginBottom="@dimen/dp_20"
android:contentDescription="@string/head"
/>
<TextView
android:id="@+id/tv_content_num"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="@dimen/dp_20"
android:lines="1"
android:textColor="@color/color_333333"
android:textSize="@dimen/textSize_21"
app:layout_constraintBottom_toTopOf="@id/tv_content_name"
app:layout_constraintEnd_toStartOf="@id/tv_fans_num"
app:layout_constraintHorizontal_bias="0.98"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintStart_toEndOf="@id/iv_head"
app:layout_constraintTop_toTopOf="@id/iv_head"
app:layout_constraintVertical_chainStyle="spread"
/>
<TextView
android:id="@+id/tv_content_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="@dimen/dp_10"
android:text="@string/content"
android:textColor="@color/color_999999"
android:textSize="@dimen/textSize_13"
app:layout_constraintBottom_toBottomOf="@id/iv_head"
app:layout_constraintEnd_toEndOf="@id/tv_content_num"
app:layout_constraintStart_toStartOf="@id/tv_content_num"
app:layout_constraintTop_toBottomOf="@id/tv_content_num"
/>
<TextView
android:id="@+id/tv_fans_num"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/dp_20"
android:lines="1"
android:textColor="@color/color_333333"
android:textSize="@dimen/textSize_21"
app:layout_constraintBaseline_toBaselineOf="@id/tv_content_num"
app:layout_constraintBottom_toTopOf="@id/tv_fans_name"
app:layout_constraintEnd_toStartOf="@id/tv_concern_btn"
app:layout_constraintStart_toEndOf="@id/tv_content_num"
app:layout_constraintTop_toTopOf="@id/iv_head"
app:layout_constraintVertical_chainStyle="spread"
/>
<TextView
android:id="@+id/tv_fans_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/fans"
android:textColor="@color/color_999999"
android:textSize="@dimen/textSize_13"
app:layout_constraintBaseline_toBaselineOf="@id/tv_content_name"
app:layout_constraintBottom_toBottomOf="@id/iv_head"
app:layout_constraintEnd_toEndOf="@id/tv_fans_num"
app:layout_constraintStart_toStartOf="@id/tv_fans_num"
app:layout_constraintTop_toBottomOf="@id/tv_fans_num"
/>
<TextView
android:id="@+id/tv_concern_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="@dimen/dp_20"
android:background="@drawable/background_my_concern"
android:clickable="true"
android:focusable="true"
android:paddingStart="@dimen/dp_10"
android:paddingTop="@dimen/dp_3"
android:paddingEnd="@dimen/dp_10"
android:paddingBottom="@dimen/dp_3"
android:text="@string/concerned"
android:textColor="@color/color_FFFFFF"
android:textSize="@dimen/textSize_15"
app:layout_constraintBottom_toBottomOf="@id/iv_head"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@id/iv_head"
/>
<View
android:layout_width="@dimen/dp_1"
android:layout_height="@dimen/dp_25"
android:background="@color/color_D8D8D8"
app:layout_constraintBottom_toBottomOf="@id/iv_head"
app:layout_constraintEnd_toStartOf="@id/tv_fans_num"
app:layout_constraintStart_toEndOf="@id/tv_content_num"
app:layout_constraintTop_toTopOf="@id/iv_head"
/>
<TextView
android:id="@+id/tv_authority"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/dp_20"
android:layout_marginTop="@dimen/dp_20"
android:layout_marginEnd="@dimen/dp_20"
android:drawableStart="@drawable/vip_ico"
android:drawablePadding="@dimen/dp_5"
android:textColor="@color/color_666666"
android:textSize="@dimen/textSize_17"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toTopOf="@id/tv_authority_content"
/>
<TextView
android:id="@+id/tv_authority_content"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/dp_20"
android:layout_marginTop="@dimen/dp_10"
android:layout_marginEnd="@dimen/dp_20"
android:layout_marginBottom="@dimen/dp_10"
android:drawableStart="@drawable/introduction_ico"
android:drawablePadding="@dimen/dp_5"
android:maxLines="3"
android:textColor="@color/color_666666"
android:textSize="@dimen/textSize_17"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintVertical_bias="0"
/>
</android.support.constraint.ConstraintLayout>