Android scrollview没有填充父视图

Question

我有以下包含scrollview的布局.在屏幕尺寸大于4.8"之后,视图底部会出现一个白色区域.为什么这样,当我指定了scroll_farent的scrollview？

提前致谢.

注意,你看不到下面屏幕截图菜单下方的空白区域,因为它是白色的,对不起.有一英寸或2英寸的空间

 <?xml version="1.0" encoding="utf-8"?>


     <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        >



    <LinearLayout 
        android:id="@+id/ll1"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="@drawable/carefreebgscaledlighting"
        android:orientation="vertical" xmlns:android="http://schemas.android.com/apk/res/android">




        <TextView
            android:id="@+id/textviewcompanyname"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:textColor="#003F87" />

        <TextView
            android:id="@+id/textViewYouAreSignedIn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:layout_alignParentTop="true"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:textColor="#003F87"
             />

              <TextView
            android:id="@+id/textViewUnsentTransactions"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:layout_below="@id/textViewYouAreSignedIn"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:textColor="#003F87"
             />

        <TextView
            android:id="@+id/spacerasnexttextviewclasheswithbg"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:textAppearance="?android:attr/textAppearanceLarge"
             />

        <LinearLayout

            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >

            <ImageView 
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/imagesignaltower"
                android:background="@drawable/signaltower"/>

            <ProgressBar
            android:id="@+id/progressBarSignal"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:progressDrawable="@drawable/progressbar2"
            android:layout_marginTop="10dp" />

        </LinearLayout>


        <TextView
            android:id="@+id/textview1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="@string/stringloggedinscreen"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:textColor="#003F87" />

    <Button
        android:id="@+id/buttonsignin"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="@string/stringbuttonsignin"
         />

.........
...........
...........
</LinearLayout>
    </ScrollView>

.

Answer 1

添加到您的ScrollView:

android:fillViewport="true"

Answer 2

尝试设置ScrollView android:fillViewport="true",参考这个

Answer 3

只需使用这个：

android:fillViewport="true"

滚动视图示例：

<ScrollView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:fillViewport="true"
                    android:fadingEdge="vertical|horizontal"
                    >

示例 NestedScrollView ：

<android.support.v4.widget.NestedScrollView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:fillViewport="true"
                    android:fadingEdge="vertical|horizontal"
                    >