更改布局时更改XML布局 [英] Xml layout changes while changing orientation

问题描述

我有两个活动会打开，具体取决于SD卡的存在.一个活动具有三个Buttons和TextView，另一个活动具有ImageView，按钮和缩放控件.当我改变方向时，按钮在水平方向上会变得混乱.如何解决这个问题?

I have two activities which opens depending on the SD card presence. One activity has three Buttons and a TextView and the other an ImageView, a button and zoom control. When I change the orientation, the buttons get scrambled around while in horizontal direction. How to go around this?

我的"SD"卡布局

My 'SD' card layout

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#1E1E1E"
    android:orientation="vertical" >

    <Button
        android:id="@+id/button_print"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="44dp"
        android:background="@drawable/my_button"
        android:text="@string/print" />

    <TextView
        android:id="@+id/text_SDmissing"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="80dp"
        android:text="@string/SDmissing"
        android:textSize="20dp" />

    <Button
        android:id="@+id/button_camera"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/button_print"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="58dp"
        android:background="@drawable/my_button"
        android:text="@string/camera" />

    <Button
        android:id="@+id/button_insert"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/text_SDmissing"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="40dp"
        android:background="@drawable/my_button"
        android:text="@string/insert" />

</RelativeLayout>

推荐答案

您必须为纵向和横向模式创建单独的XML文件，并将其放置在不同的目录中.设备将自动选择正确的设备.您可以使用以下目录结构

You have to create separate XML files for portrait and landscape modes and place it in different directories. The device will automatically select the right one. You can use the following directory structure

res/layout/my_layout.xml   
res/layout-land/layout.xml

有关更多参考，您可以检查: http://developer.android.com/guide/practices/screens_support.html

For further reference you can check: http://developer.android.com/guide/practices/screens_support.html

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