与LinearLayout中大量的无用的空白,滚动型 [英] Massive unwanted whitespace with LinearLayout in ScrollView

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问题描述

我有一个自定义的ImageView的布局,以及两个TextEdits;一个在上面,下面的一个。为了使这个适合在多个屏幕上我有一个滚动型包围了整个事情。

然而,当滚动型加入大规模间隙(约屏幕的高度)出现在顶部文本编辑和ImageView的,并且ImageView的和底部的文本编辑之间

我只覆盖的onDraw()方法在ImageView的(和我仍然呼吁 super.onDraw()从那里)

这是我的布局:


 < LinearLayout中的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
    机器人:layout_width =match_parent
    机器人:layout_height =WRAP_CONTENT
    机器人:方向=垂直>    <的EditText
        机器人:ID =@ + ID / top_text
        机器人:layout_width =match_parent
        机器人:layout_height =WRAP_CONTENT
        机器人:EMS =10
        机器人:提示=@字符串/ top_hint>        < requestFocus的/>
    < /&的EditText GT;    < com.javanut13.gememerator.MImageView
        机器人:ID =@ + ID / image_viewer
        机器人:layout_width =match_parent
        机器人:layout_height =WRAP_CONTENT
        机器人:填充=0dp
        机器人:SRC =@绘制/ ic_action_search/>    <的LinearLayout
        机器人:layout_width =match_parent
        机器人:layout_height =WRAP_CONTENT>        <的EditText
            机器人:ID =@ + ID / bottom_text
            机器人:layout_width =match_parent
            机器人:layout_height =WRAP_CONTENT
            机器人:EMS =10
            机器人:layout_weight =3
            机器人:提示=@字符串/ bottom_hint/>        <按钮
            机器人:ID =@ + ID /按钮1
            机器人:layout_width =WRAP_CONTENT
            机器人:layout_height =WRAP_CONTENT
            机器人:layout_weight =1
            机器人:文字=@字符串/ BUTTON_TEXT/>
    < / LinearLayout中>
< / LinearLayout中>


解决方案

好吧,事实证明,我的ImageView没有调整它的高度时,缩放图像,因此它会保持原始图像的高度(这从我的相机;约2000像素高),从而有上方和下方一个巨大的空间。

图像不ImageView的调整:

我碰到这个问题就来了),它说要添加的android:adjustViewBounds =真正的来的ImageView的,它解决了这个问题。

I have a layout with a custom ImageView, and two TextEdits; one above and one below. To make this fit on multiple screens I have surrounded the whole thing with a ScrollView.

However, when the ScrollView is added a massive gap (approx. the height of the screen) appears between the top TextEdit and the ImageView, and the ImageView and the bottom TextEdit.

I am only overriding the onDraw() method in the ImageView (and am still calling super.onDraw() from there)

This is my layout:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <EditText
        android:id="@+id/top_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="@string/top_hint" >

        <requestFocus />
    </EditText>

    <com.javanut13.gememerator.MImageView
        android:id="@+id/image_viewer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="0dp"
        android:src="@drawable/ic_action_search" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <EditText
            android:id="@+id/bottom_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:ems="10"
            android:layout_weight="3"
            android:hint="@string/bottom_hint" />

        <Button
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/button_text" />
    </LinearLayout>
</LinearLayout>

解决方案

Ok, it turned out that my ImageView wasn't resizing its height when it scaled the image, and so it would keep the height of the raw image (which was from my camera; about 2000 pixels tall) and thus have a massive space above and below it.

I came across this question: (Image do not resize with ImageView) which says to add android:adjustViewBounds="true" to the ImageView, which fixes the problem.

这篇关于与LinearLayout中大量的无用的空白,滚动型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!

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