Android：布局列表标题

发布于 2024-12-18 22:46:51 字数 1810 浏览 6 评论 0原文

我有一个包含两个图像按钮的列表标题。我希望其中一个图像按钮位于左侧，另一个位于右侧。这就是我的 xml 文件现在的样子，但它不起作用，它只是将左侧的两个图像按钮放在一起。我也尝试过不使用额外的 LinearLayouts，但没有成功。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="horizontal"
  android:gravity="fill_horizontal"
  android:background="@drawable/list_header_background">
    <LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="wrap_content"
      android:layout_height="fill_parent"
      android:orientation="horizontal"
      android:gravity="left"
      android:background="@drawable/list_header_background">
        <ImageButton
            android:id="@+id/refreshBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="4dp"
            android:src="@drawable/ic_refresh"
            android:background="@drawable/list_header_background"
            />
    </LinearLayout>
    <LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="wrap_content"
      android:layout_height="fill_parent"
      android:orientation="horizontal"
      android:gravity="right"
      android:background="@drawable/list_header_background">
        <ImageButton
            android:id="@+id/battleBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="4dp"
            android:src="@drawable/ic_battle"
            android:background="@drawable/list_header_background"
            />
    </LinearLayout>
</LinearLayout>

原文

I have a header for a list that contains two image buttons. I want one of those image buttons to be on the left, and the other to be on the right. This is what my xml file looks like right now but it does not work, it just puts the two image buttons on the left together. I have also tried without the additional LinearLayouts but no luck.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="horizontal"
  android:gravity="fill_horizontal"
  android:background="@drawable/list_header_background">
    <LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="wrap_content"
      android:layout_height="fill_parent"
      android:orientation="horizontal"
      android:gravity="left"
      android:background="@drawable/list_header_background">
        <ImageButton
            android:id="@+id/refreshBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="4dp"
            android:src="@drawable/ic_refresh"
            android:background="@drawable/list_header_background"
            />
    </LinearLayout>
    <LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="wrap_content"
      android:layout_height="fill_parent"
      android:orientation="horizontal"
      android:gravity="right"
      android:background="@drawable/list_header_background">
        <ImageButton
            android:id="@+id/battleBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="4dp"
            android:src="@drawable/ic_battle"
            android:background="@drawable/list_header_background"
            />
    </LinearLayout>
</LinearLayout>

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柠北森屋 2024-12-25 22:46:51

正如 kabuko 所写，RelativeLayout 宽度等于父宽度。当我们在该 RelativeLayout 中有一个子视图时，我们可以使用 android:layout_alignParentXXXXXX="true" 参数来将其（子视图）相应地与父视图对齐。

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="horizontal"
  android:background="@drawable/list_header_background">
  <ImageButton
      android:id="@+id/refreshBtn"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="4dp"
      android:src="@drawable/ic_refresh"
      android:layout_alignParentLeft="true"
      android:background="@drawable/list_header_background"
  />
  <ImageButton
      android:id="@+id/battleBtn"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="4dp"
      android:src="@drawable/ic_battle"
      android:layout_alignParentRight="true"
      android:background="@drawable/list_header_background"
   />
</RelativeLayout>

As kabuko wrote, the RelativeLayout width is equal to the parent width. When we have a child view inside that RelativeLayout, we can use the android:layout_alignParentXXXXXX="true" parameter in order to align it (the child) accordingly to the parent.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="horizontal"
  android:background="@drawable/list_header_background">
  <ImageButton
      android:id="@+id/refreshBtn"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="4dp"
      android:src="@drawable/ic_refresh"
      android:layout_alignParentLeft="true"
      android:background="@drawable/list_header_background"
  />
  <ImageButton
      android:id="@+id/battleBtn"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:padding="4dp"
      android:src="@drawable/ic_battle"
      android:layout_alignParentRight="true"
      android:background="@drawable/list_header_background"
   />
</RelativeLayout>

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