我的目标是在 BottomNavigationView
顶部放置一个“Bottom Sheet ”,如下所示:
但它保持以下方式。两种 View 都崩溃了:
这是我主要 Activity 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:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/tierrota"
tools:context="com.example.juanjose.myapplication.ViajesActivity">
<!-- include main content -->
<include layout="@layout/bottomsheet" />
<!-- include bottom sheet -->
<include layout="@layout/bottom_navigation" />
</android.support.design.widget.CoordinatorLayout>
bottom_navigation
的代码:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<android.support.design.widget.BottomNavigationView
android:id="@+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
app:itemBackground="@color/colorClarito"
app:itemIconTint="@drawable/nav_item_color_state"
app:itemTextColor="@drawable/nav_item_color_state"
app:menu="@menu/bottom_navigation_main" />
</RelativeLayout>
以及 Bottom Sheet 代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:behavior_hideable="false"
app:behavior_peekHeight="80dp"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<TextView
android:layout_width="match_parent"
android:layout_height="80dp"
android:background="@color/colorBackgroundSemi"
android:gravity="center"
android:text="Bandeja de entrada"
android:fontFamily="@font/eraslght"
android:textColor="@color/colorLetra"
app:layout_anchor="@+id/bottom_navigation"
app:layout_anchorGravity="top"/>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:text="coisa2"
android:textColor="@android:color/white" />
</LinearLayout>
我对这两个元素很陌生。有没有人知道如何实现我正在寻找的目标?
我希望我的“Bottom Sheet ”能够起到这样的作用并且可以扩展。我的最终目标是在 BottomSheet
内添加一个 RecyclerView
。
最佳答案
要使用BottomSheet,它应该是CoordinatorLayout的子级。这里我使用相对布局作为底部导航的父布局,使其位于底部,然后将 CoordinatorLayout 置于底部导航上方。 这是 article这会对你有帮助。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_above="@id/bottom_navigation_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="?attr/colorPrimary" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/bottom_sheet_parent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#000000"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<LinearLayout
android:id="@+id/bottom_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<View
android:layout_width="20dp"
android:layout_height="4dp"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:background="@drawable/view_bottom_sheet_top" />
<TextView
android:id="@+id/near_by"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="@font/normal"
android:gravity="center"
android:includeFontPadding="false"
android:padding="10dp"
android:text="Book Now"
android:textAllCaps="true"
android:textColor="?attr/colorPrimaryText"
android:textSize="12sp" />
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view_maps"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/bottom_view"
android:layoutAnimation="@anim/layout_animation">
</android.support.v7.widget.RecyclerView>
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.AppBarLayout
android:id="@+id/bottom_navigation_parent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:fitsSystemWindows="true"
app:elevation="1dp">
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/colorContainerBackground"
/>
<!-- Start BottomNavigationView -->
<!-- End BottomNavigationView -->
</android.support.design.widget.AppBarLayout>
</RelativeLayout>
不要忘记将其添加到您的 Activity/Fragment
private RelativeLayout bottomSheetParentLayout;
private BottomSheetBehavior mBottomSheetBehaviour;
mBottomSheetBehaviour = BottomSheetBehavior.from(bottomSheetParentLayout);
if (bottomNavigation != null) {
mBottomSheetBehaviour.setPeekHeight(bottomNavigation.getHeight() + 90);
}
关于android - 底部导航上方的 Bottom Sheet ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/48649649/