Question

我有三个图标a RelativeLayout，如何将它们分配到屏幕宽度？

由于我可能会以编程方式向此行添加更多图标，因此无法将固定边距硬编码为这些图标。

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <ImageView
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:id="@+id/icon1"
        android:src="@mipmap/icon" />
    <ImageView
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:id="@+id/icon2"
        android:layout_toRightOf="@id/icon1"
        android:layout_alignBottom="@id/icon1"
        android:src="@mipmap/icon" />
    <ImageView
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:id="@+id/icon3"
        android:layout_toRightOf="@id/icon2"
        android:layout_alignBottom="@id/icon2"
        android:src="@mipmap/icon" />
</RelativeLayout>

Answer 1

请使用LinearLayout 并使用此代码，该代码适用于所有分辨率设备。

<?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:gravity="center_horizontal" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:weightSum="3" >

        <ImageView
            android:id="@+id/icon1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/ic_launcher" />

        <ImageView
            android:id="@+id/icon2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@id/icon1"
            android:layout_toRightOf="@id/icon1"
            android:layout_weight="1"
            android:src="@drawable/ic_launcher" />

        <ImageView
            android:id="@+id/icon3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@id/icon2"
            android:layout_toRightOf="@id/icon2"
            android:layout_weight="1"
            android:src="@drawable/ic_launcher" />
    </LinearLayout>

</LinearLayout>

Answer 2

您的代码在属性中进行了少量修改。

试试这个：

with LinkedAccounts (p, ch, orig_recur, dest_recur, lvl) as (
            select n.p
    , n.ch
    , 1 orig_recur
     , case n.p
           when 1 then ch
                   else p
        end dest_recur
     , 1 lvl
   from tree n
 where n.p = 1
   or n.ch = 1 union all
select n.p
     , n.ch
    , LinkedAccounts.dest_recur orig_recur
     , case n.p
         when LinkedAccounts.dest_recur then n.ch
                           else n.p
       end dest_recur
     , LinkedAccounts.lvl + 1 lvl
  from LinkedAccounts
  join tree n
        on (n.p = LinkedAccounts.dest_recur and n.ch != LinkedAccounts.orig_recur)
        or (n.ch = LinkedAccounts.dest_recur and n.p != LinkedAccounts.orig_recur)
)
 search breadth first by orig_recur, dest_recur set ordering
cycle ch,
 p set is_cycle to '1' default '0'   select distinct p    from LinkedAccounts    union     Select Distinct ch    from LinkedAccounts;

如何在RelativeLayout中将图像分布到屏幕宽度？

2 个答案: