由网友(巴黎夜雨)分享简介：我有一个 AutoCompleteTextView ，其中下拉出现的观点，而不是低于上面。有人可以帮我解释一下这个原因？它可以固定在不改变布局的太多了？ I have an AutoCompleteTextView, which drop-down appears above the view instead of...

我有一个 AutoCompleteTextView ，其中下拉出现的观点，而不是低于上面。有人可以帮我解释一下这个原因？它可以固定在不改变布局的太多了？

I have an AutoCompleteTextView, which drop-down appears above the view instead of below. Can someone help me and explain the reason of this? Can it be fixed without changing the layout too much?

下面是我的布局其中包括提到的部分 AutoCompleteTextView ：

Here is the part of my layout which includes mentioned AutoCompleteTextView:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="right"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/LinearNewSearch"
        android:layout_width="wrap_content"
        android:layout_height="60dip"
        android:layout_alignParentRight="true"
        android:gravity="right"
        android:orientation="horizontal" >

        <TextView
            android:id="@+id/TextView16"
            android:layout_width="35dip"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:text="0.0"
            android:textColor="#ffa500"
            android:textSize="18sp" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=" = "
            android:textColor="#00ff00"
            android:textSize="17sp"
            android:textStyle="bold" />

        <EditText
            android:id="@+id/EditText17"
            android:layout_width="45dip"
            android:layout_height="fill_parent"
            android:focusable="false"
            android:gravity="center"
            android:inputType="numberDecimal"
            android:text="0.0" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="  x  "
            android:textColor="#00ff00"
            android:textSize="17sp"
            android:textStyle="bold" />

        <AutoCompleteTextView
            android:id="@+id/NewSearch"
            android:layout_width="190dip"
            android:layout_height="fill_parent"
            android:layout_marginRight="10dip"
            android:completionThreshold="1"
            android:dropDownHeight="120dp" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/NewList"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_below="@id/LinearNewSearch"
        android:layout_marginRight="5dip"
        android:layout_marginTop="-7dip"
        android:gravity="top"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/AddNewSearch"
            android:layout_width="50dip"
            android:layout_height="50dip"
            android:layout_gravity="center"
            android:layout_marginBottom="25dip"
            android:layout_marginRight="5px"
            android:text="+"
            android:textColor="#000080"
            android:textSize="15sp"
            android:textStyle="bold" />

        <VerticalSeekBar
            android:id="@+id/seekbar2"
            android:layout_width="wrap_content"
            android:layout_height="150dip"
            android:layout_marginRight="8px"
            android:max="10"
            android:progress="1" />

        <LinearLayout
            android:id="@+id/LinearLayout80"
            android:layout_width="210dip"
            android:layout_height="150dip"
            android:layout_marginRight="15dip"
            android:background="#25FFFFFF"
            android:orientation="vertical" >

            <ListView
                android:id="@+id/List06"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

        </LinearLayout>
    </LinearLayout>

</RelativeLayout>

我见过的建议添加安卓dropDownHeight =100dp到 AutoCompleteTextView 声明，但没有帮助。

I've seen a suggestion to add android:dropDownHeight="100dp" to AutoCompleteTextView declaration, but that didn't help.

推荐答案

尝试添加 dropDownVerticalOffset 属性来AutoCompleteTextView在你的XML：

Try adding dropDownVerticalOffset attribute to AutoCompleteTextView in your xml:

  ...
         <AutoCompleteTextView
           android:id="@+id/NewSearch"
            android:layout_width="190dip"
            android:layout_height="fill_parent"
                    ...
                     android:dropDownVerticalOffset="50dp"
                    ...
                                             />
    ...