右下角的浮動動作按鈕

Question

我使用這個xml，它包含一個ListView和一個浮動動作按鈕。我想FAB始終位於右下角（但不要太靠近屏幕邊框），但它只是適合列表的最後一個項目（所以當列表中有一個項目，它越來越右上方）

<?xml version="1.0" encoding="utf-8"?> 
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.reminder.other_activities.AllSimpleRemindersActivity"> 

    <com.baoyz.swipemenulistview.SwipeMenuListView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/simpleRems" 
     android:dividerHeight="0dp" 
     android:divider="@null" 
     android:layout_alignParentTop="true" 
     android:layout_centerHorizontal="true" 
     android:layout_alignParentBottom="true" /> 

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

    </RelativeLayout> 

    <android.support.design.widget.FloatingActionButton 
     android:layout_margin="10dp" 
     android:id="@+id/myFAB" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     app:backgroundTint="#FF0000" 
     app:borderWidth="0dp" 
     app:elevation="8dp" 
     app:layout_anchor="@id/test" 
     app:layout_anchorGravity="bottom|right|end" /> 
</android.support.design.widget.CoordinatorLayout> 

Answer 1

嘗試將您的SwipeMenuListView高度設置爲match_parent並刪除您的測試相對佈局。

<?xml version="1.0" encoding="utf-8"?> 
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.reminder.other_activities.AllSimpleRemindersActivity"> 

    <com.baoyz.swipemenulistview.SwipeMenuListView 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:id="@+id/simpleRems" 
     android:dividerHeight="0dp" 
     android:divider="@null" 
     android:layout_alignParentTop="true" 
     android:layout_centerHorizontal="true" 
     android:layout_alignParentBottom="true" /> 


    <android.support.design.widget.FloatingActionButton 
     android:layout_margin="10dp" 
     android:id="@+id/myFAB" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     app:backgroundTint="#FF0000" 
     app:borderWidth="0dp" 
     app:elevation="8dp" 
     android:layout_gravity="bottom|right" 
     app:layout_anchor="@id/simpleRems" 
     app:layout_anchorGravity="bottom|right|end" /> 
</android.support.design.widget.CoordinatorLayout>