Android版式上下 [英] Android Layout Below and Above

问题描述

我有三个TextViews.第一个和第三个用不变的Text定义.第二个，第一个和第三个之间的TextView通过输入获取值.如何在布局的第一个和第三个之间设置第二个TextView?

I got three TextViews. The first and the third are defined with a not changing Text. The second, the TextView between the first and the third gets the value with an input. How can I set the second TextView between the first and the third in the layout?

<TextView
android:id="@+id/secondtext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/firsttext"
android:layout_above="@+id/thirdtext"
android:layout_alignLeft="@+id/firsttext"
android:layout_alignRight="@+id/thirdtext"
android:background="@drawable/border"
android:scrollbars="vertical"
android:textAppearance="?android:attr/textAppearanceMedium" />

那行不通！

<TextView
        android:id="@+id/secondtext"
        android:layout_width="282dp"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/firsttext"
        android:layout_below="@+id/firsttext"
        android:background="@drawable/border"
        android:ellipsize="marquee"
        android:lines="4"
        android:scrollbars="vertical"
        android:textAppearance="?android:attr/textAppearanceMedium" />

那也不起作用

推荐答案

依赖性过多，请检查xml中是否遇到任何循环依赖性错误.根据您的要求，在不指定间距和其他UI详细信息的情况下，提供一种解决方案:

Too many dependencies, check if you are getting any circular dependency error in xml. As per your requirement, without specifying the spacing and other UI details, a solution:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@android:color/black" >

    <TextView
        android:id="@+id/firsttext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@android:color/white"
        android:text="first"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/secondtext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/firsttext"
        android:background="@android:color/white"
        android:text="second"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/thirdtext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/secondtext"
        android:background="@android:color/white"
        android:text="third"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>

这篇关于Android版式上下的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！