小弟正在做一个页面,页面内的数据数量预先不可知,目前通过setAdapter动态添加,由于页面下方还有一个菜单布局,该菜单布局应该始终保持在界面最下端,但是现象是数据添加后菜单布局跑到了界面最上端,网上找了很多方法都没有效果,痛苦万分,请教各位大神该如何处理,感谢实现页面异常:布局效果:布局代码:<?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"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id = "@+id/editLayout"
        android:layout_alignParentTop="true"        >
        <CheckBox
            android:id="@+id/iv_report_checkbox"
            android:layout_width="40dp"
            android:layout_height="40dp"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:layout_marginLeft="12dp"
            />
        <TextView
            android:id="@+id/tv_report_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@id/iv_report_checkbox"
            android:clickable="true"
            android:layout_centerVertical="true"
            android:layout_marginRight="12dp"
            android:layout_marginLeft="12dp"
            android:singleLine="true"
            android:text="@string/item_report_name"
            android:tag = "@string/item_application_activity"
            />
    </RelativeLayout>    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:id = "@+id/menuLayout"
        android:layout_alignParentBottom = "true"        >
        <View
            android:id="@+id/placeholder"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_centerHorizontal="true"/>        <Button
            android:id="@+id/confirmBtn"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:background="#00ffffff"
            android:text = "确定"
            android:layout_alignParentLeft="true"
            android:layout_alignRight="@id/placeholder"
            android:layout_gravity="bottom"
            android:layout_weight="1"
            >
        </Button>
        <Button
            android:id="@+id/cancelBtn"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:background="#00ffffff"
            android:text = "取消"
            android:layout_alignLeft="@id/placeholder"
            android:layout_alignParentRight="true"
            android:layout_gravity="bottom"
            android:layout_weight="1"
            >
        </Button>
    </LinearLayout>
</RelativeLayout>