android - 主布局已设置但仅显示包装内容

Question

我创建一个布局父布局都匹配父但仍然显示只包含包装。我尝试了所有布局设置匹配父级，但它不是全宽显示如何解决此类问题。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/lightyellow"
android:orientation="vertical">
<include
    android:id="@+id/rightLayout"
    layout="@layout/header" />
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginLeft="@dimen/padding_medium"
    android:layout_marginRight="@dimen/padding_medium"
    android:layout_marginTop="@dimen/padding_large"
    android:dividerHeight="@dimen/padding_medium"
    android:orientation="horizontal"
    android:paddingBottom="@dimen/padding_medium"
    android:paddingTop="@dimen/padding_medium">
    <Spinner
        android:id="@+id/spnSelectEventName"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="0.9"
        android:background="@drawable/spinner_bg" />
    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:background="@drawable/image_bg" />
</LinearLayout>

页眉布局文件是。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/GreenColor"
android:baselineAligned="false"
android:padding="@dimen/padding_medium"
android:orientation="horizontal">
<LinearLayout
    android:id="@+id/btn_header_left"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:clickable="true"
    android:gravity="center"
    android:visibility="gone">
    <ImageButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/ic_sidemenu"
        android:clickable="false"
        android:duplicateParentState="true" />
</LinearLayout>
<TextView
    android:id="@+id/txt_middle_name"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical"
    android:layout_marginBottom="@dimen/padding_small"
    android:layout_marginTop="@dimen/padding_small"
    android:gravity="center"
    android:layout_weight="1"
    android:text="Header Name"
    android:textColor="@color/WhiteColor"
    android:textSize="@dimen/TextSize_medium"
    android:textStyle="bold"
    android:visibility="visible" />
<LinearLayout
    android:id="@+id/btn_header_right"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center|right"
    android:clickable="true"
    android:gravity="center"
    android:visibility="gone">
    <ImageButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/ic_search_home"
        android:clickable="false"
        android:duplicateParentState="true" />
</LinearLayout>

Answer 1

Make changes to your Layout as below. Remove unnecessary padding and margins from that Layout. And give some weight to ImageView as well so it will work properly.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/holo_blue_light"
    android:orientation="vertical">

    <include
        android:id="@+id/rightLayout"
        layout="@layout/header" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="5dp"
        android:layout_marginTop="5dp"
        android:dividerHeight="5dp"
        android:orientation="horizontal"
        android:weightSum="2">

        <Spinner
            android:id="@+id/spnSelectEventName"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1.5" />

        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_weight="0.5"
            android:src="@mipmap/ic_launcher" />
    </LinearLayout>
</LinearLayout>