android-RelativeLayout设计问题：RelativeLayout和Button之间的ScrollView

2019-12-02 04:26:10 阅读：235 来源： 互联网

标签：scrollview relativelayout android

我的活动布局必须如下：

>屏幕分为3个部分(3个“行”)
>第一部分由左侧的图像和其旁边的两个TextView组成.
>第二部分是一个大文本,放入ScrollView中,以便可以滚动它.
>第三部分只是一个按钮,此按钮必须始终位于屏幕底部.

因此,第一和第三部分都必须固定,只有第二部分可以滚动.

这是我的代码：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/relativeLayout0"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

<RelativeLayout
    android:id="@+id/relativeLayout1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"            
        android:layout_toRightOf="@id/imageView1"
        android:text="TextView" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"            
        android:layout_toRightOf="@id/imageView1"
        android:layout_below="@id/textView1"
        android:text="TextView" />

</RelativeLayout>

<RelativeLayout 
    android:id="@+id/relativeLayout2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/relativeLayout1">      

    <ScrollView
        android:id="@+id/scrollView1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >    

        <TextView
            android:id="@+id/textView3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text " />

    </ScrollView>

</RelativeLayout>

<RelativeLayout 
    android:id="@+id/relativeLayout3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBottom="@id/relativeLayout2">

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button" />

</RelativeLayout>

</RelativeLayout>

问题在这里很明显：

中间部分的文本可以正确滚动,但是问题在于,当布局中的按钮“开始”时,ScrollView不会“结束”.

解决方法:

尝试这个：

<?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:orientation="vertical" >

    <RelativeLayout
        android:id="@+id/relativeLayout1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >

        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:src="@drawable/ic_launcher" />

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@id/imageView1"
            android:text="TextView" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/textView1"
            android:layout_toRightOf="@id/imageView1"
            android:text="TextView" />
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/relativeLayout2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:layout_below="@id/relativeLayout1" >

        <ScrollView
            android:id="@+id/scrollView1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" >

            <TextView
                android:id="@+id/textView3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text BIG BIG text " />
        </ScrollView>
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/relativeLayout3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@id/relativeLayout2" >

        <Button
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Button" />
    </RelativeLayout>

</LinearLayout>

标签：scrollview,relativelayout,android
来源： https://codeday.me/bug/20191202/2086043.html

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android-RelativeLayout设计问题：RelativeLayout和Button之间的ScrollView