android - 在 Coordinator Layout 中排列 View

Question

我在将框架布局置于底部抽屉导航下方时遇到问题(是的，我将其放在顶部 :))。现在 Frame 布局的顶部被 BND 隐藏了，因为它像 BND 一样与父级顶部对齐，而不是与 BND 底部对齐。

代码如下:

<?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:id="@+id/coordID">

    <android.support.design.widget.BottomNavigationView
        android:id="@+id/BND_ID"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?android:attr/windowBackground"
        app:menu="@menu/m_navigation"
        />

    <FrameLayout
        android:id="@+id/fID2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
    </FrameLayout>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/dummyFAB"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:layout_margin="16dp"
        app:srcCompat="@drawable/ic_settings"
        app:layout_insetEdge="bottom" />

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

Answer 1

您应该尝试将它们包装在 RelativeLayout 中，如下所示:

<?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:id="@+id/coordID">

    <RelativeLayout
        android:id="@+id/relativeLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">


        <android.support.design.widget.BottomNavigationView
            android:id="@+id/BND_ID"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="?android:attr/windowBackground"
            app:menu="@menu/m_navigation" />

        <FrameLayout
            android:id="@+id/fID2"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/BND_ID"/>

    </RelativeLayout>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/dummyFAB"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true"
        android:layout_gravity="end|bottom"
        app:layout_anchor="@+id/relativeLayout"
        app:layout_anchorGravity="right|bottom"
        app:layout_insetEdge="bottom"
        app:srcCompat="@drawable/ic_settings" />



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