下拉列表会忽略Android布局填充

Upv*_*ote 2 android android-layout android-listview

在此输入图像描述

作为xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="20dp">

    <Button
        android:id="@+id/locationButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:minWidth="46dip"
        android:onClick="getLocation"
        android:text="@string/icon_map_marker" />

    <AutoCompleteTextView
        android:id="@+id/autocomplete_city"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:hint="@string/city_hint"
        android:inputType="text"
        android:layout_alignBottom="@+id/locationButton"
        android:layout_alignTop="@id/locationButton"
        android:layout_toLeftOf="@id/locationButton"
        android:dropDownWidth="match_parent"
        />

    <requestFocus />

</RelativeLayout>
Run Code Online (Sandbox Code Playgroud)

正如你所看到的那样

android:dropDownWidth="match_parent"
Run Code Online (Sandbox Code Playgroud)

忽略相对布局的填充.任何想法如何解决这一问题?

Upv*_*ote 7

解决了它.我不得不定义另一个相对布局,只包含自动完成文本视图和按钮.此布局是弹出窗口的锚点,将相对布局的宽度作为自己的宽度.关键:

android:dropDownWidth="wrap_content"
android:dropDownAnchor="@+id/anchor"
Run Code Online (Sandbox Code Playgroud)

精简版:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="20dp" >

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/anchor" >

        <Button
            android:id="@+id/locationButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true" />

        <AutoCompleteTextView
            android:id="@+id/autocomplete_city"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/locationButton"
            android:layout_alignTop="@id/locationButton"
            android:layout_centerHorizontal="true"
            android:layout_toLeftOf="@id/locationButton"
            android:dropDownWidth="wrap_content"
            android:hint="@string/city_hint"
            android:dropDownAnchor="@+id/anchor" />

        <requestFocus />

    </RelativeLayout>

</RelativeLayout>
Run Code Online (Sandbox Code Playgroud)