通过使用ConstraintLayout,我正在使用BottomSheet来显示地图详细信息的内容。我的想法与GoogleMaps中使用的相同,但没有顶部的图片轮播。
我需要找到一些属性来将BottomSheet绑定在底部,仅使用其布局的大小,而不是整个窗口,如下所示:这是来自父视图的XML:
<?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"
xmlns:mapbox="http://schemas.android.com/apk/res-auto"
android:id="@+id/coordinator_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.mapbox.mapboxsdk.maps.MapView
android:id="@+id/mapview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
mapbox:center_latitude="0"
mapbox:center_longitude="0"
mapbox:style_url="@string/style_mapbox_streets"
mapbox:zoom="12" />
<!--
<ImageView
android:id="@+id/bottom_sheet_backdrop"
android:layout_width="match_parent"
android:layout_height="@dimen/anchor_point"
android:fitsSystemWindows="true"
app:layout_behavior="@string/BackDropBottomSheetBehavior" />
-->
<android.support.v4.widget.NestedScrollView
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical"
app:anchorPoint="@dimen/anchor_point"
app:behavior_hideable="true"
app:behavior_peekHeight="@dimen/bottom_sheet_peek_height"
app:layout_behavior="@string/BottomSheetBehaviorGoogleMapsLike">
<include
layout="@layout/places_bottom_sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true" />
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:id="@+id/places_fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/fab_margin"
android:clickable="true"
android:src="@drawable/ic_directions"
app:elevation="3dp"
app:layout_anchor="@id/bottom_sheet"
app:layout_anchorGravity="top|right|end"
app:layout_behavior="@string/ScrollAwareFABBehavior" />
</android.support.design.widget.CoordinatorLayout>
这是来自BottomSheet“layout/places_bottom_sheet”的设计。
<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="match_parent"
android:background="@android:color/white"
android:orientation="vertical"
android:paddingBottom="16dp">
<LinearLayout
android:id="@+id/linearLayout2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="8dp"
android:orientation="horizontal"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<ImageView
android:id="@+id/bottom_sheet_place_icon"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_gravity="center_vertical"
android:layout_marginStart="8dp"
android:src="@drawable/watchmen" />
<TextView
android:id="@+id/bottom_sheet_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginStart="16dp"
android:text="Bottom Sheet Title"
android:textSize="20sp" />
</LinearLayout>
<!-- line separator -->
<include
android:id="@+id/include2"
layout="@layout/line_separator"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="0dp"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/linearLayout2" />
<!-- street address-->
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="0dp"
android:orientation="horizontal"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/include2">
<ImageView
android:id="@+id/bottom_sheet_address_icon"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_marginStart="8dp"
android:scaleType="center"
android:src="@drawable/ic_location_on_black_24dp" />
<TextView
android:id="@+id/bottom_sheet_address_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginStart="16dp"
android:text="Rua tal, Nº 1234"
android:textSize="14sp" />
</LinearLayout>
<!-- phone -->
<LinearLayout
android:id="@+id/linearLayout3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:orientation="horizontal"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/linearLayout">
<ImageView
android:id="@+id/bottom_sheet_phone_icon"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_marginStart="8dp"
android:scaleType="center"
android:src="@drawable/ic_phone_black_24dp" />
<TextView
android:id="@+id/bottom_sheet_phone_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:layout_marginStart="16dp"
android:text="(62) 983 234 544"
android:textSize="14sp" />
</LinearLayout>
</android.support.constraint.ConstraintLayout>