安卓中ScrollView里面的布局不能撑满整个ScrollView

我有个布局,

  

   

    

     

    
    

     

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

    

     

    
    

     

      <ScrollView xmlns:android=
      "http://schemas.android.com/apk/res/android"
     
    
   

    

     

    
    

     

              android:layout_width=
      "match_parent"
     
    
   

    

     

    
    

     

              android:layout_height=
      "match_parent"
     
    
   

    

     

    
    

     

              android:background=
      "@color/red">
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          <RelativeLayout
     
    
   

    

     

    
    

     

                  android:layout_width=
      "match_parent"
     
    
   

    

     

    
    

     

                  android:background=
      "@color/black"
     
    
   

    

     

    
    

     

                  android:layout_height=
      "match_parent">
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              <ImageView
     
    
   

    

     

    
    

     

                      android:id=
      "@+id/Ic_background"
     
    
   

    

     

    
    

     

                      android:layout_width=
      "match_parent"
     
    
   

    

     

    
    

     

                      android:layout_height=
      "wrap_content"
     
    
   

    

     

    
    

     

                      android:src=
      "@mipmap/ic_background" />
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              <EditText
     
    
   

    

     

    
    

     

                      android:id=
      "@+id/PasswordEdit"
     
    
   

    

     

    
    

     

                      android:layout_width=
      "match_parent"
     
    
   

    

     

    
    

     

                      android:layout_height=
      "@dimen/x50"
     
    
   

    

     

    
    

     

                      android:layout_below=
      "@+id/Ic_background"
     
    
   

    

     

    
    

     

                      android:layout_margin=
      "@dimen/x10"
     
    
   

    

     

    
    

     

                      android:background=
      "@drawable/password_back"
     
    
   

    

     

    
    

     

                      android:hint=
      "密码"
     
    
   

    

     

    
    

     

                      android:inputType=
      "textPassword"
     
    
   

    

     

    
    

     

                      android:padding=
      "@dimen/x10"
     
    
   

    

     

    
    

     

                      android:textColor=
      "@color/black"
     
    
   

    

     

    
    

     

                      android:textColorHint=
      "@color/dimgray"
     
    
   

    

     

    
    

     

                      android:textSize=
      "@dimen/x20" />
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

              <LinearLayout
     
    
   

    

     

    
    

     

                      android:layout_width=
      "match_parent"
     
    
   

    

     

    
    

     

                      android:layout_height=
      "wrap_content"
     
    
   

    

     

    
    

     

                      android:layout_below=
      "@+id/PasswordEdit"
     
    
   

    

     

    
    

     

                      android:layout_margin=
      "@dimen/x10"
     
    
   

    

     

    
    

     

                      android:orientation=
      "horizontal">
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

                  <Button
     
    
   

    

     

    
    

     

                          android:id=
      "@+id/OnbackBton"
     
    
   

    

     

    
    

     

                          android:layout_width=
      "wrap_content"
     
    
   

    

     

    
    

     

                          android:layout_height=
      "wrap_content"
     
    
   

    

     

    
    

     

                          android:background=
      "@mipmap/button"
     
    
   

    

     

    
    

     

                          android:paddingLeft=
      "@dimen/x35"
     
    
   

    

     

    
    

     

                          android:paddingTop=
      "@dimen/x10"
     
    
   

    

     

    
    

     

                          android:paddingRight=
      "@dimen/x35"
     
    
   

    

     

    
    

     

                          android:paddingBottom=
      "@dimen/x10"
     
    
   

    

     

    
    

     

                          android:text=
      "返回"
     
    
   

    

     

    
    

     

                          android:textColor=
      "@color/white"
     
    
   

    

     

    
    

     

                          android:textSize=
      "@dimen/x15" />
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

                  <View
     
    
   

    

     

    
    

     

                          android:layout_width=
      "0dp"
     
    
   

    

     

    
    

     

                          android:layout_height=
      "match_parent"
     
    
   

    

     

    
    

     

                          android:layout_weight=
      "1" />
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

                  <Button
     
    
   

    

     

    
    

     

                          android:id=
      "@+id/SubmitBton"
     
    
   

    

     

    
    

     

                          android:layout_width=
      "wrap_content"
     
    
   

    

     

    
    

     

                          android:layout_height=
      "wrap_content"
     
    
   

    

     

    
    

     

                          android:background=
      "@mipmap/button"
     
    
   

    

     

    
    

     

                          android:paddingLeft=
      "@dimen/x35"
     
    
   

    

     

    
    

     

                          android:paddingTop=
      "@dimen/x10"
     
    
   

    

     

    
    

     

                          android:paddingRight=
      "@dimen/x35"
     
    
   

    

     

    
    

     

                          android:paddingBottom=
      "@dimen/x10"
     
    
   

    

     

    
    

     

                          android:text=
      "确认"
     
    
   

    

     

    
    

     

                          android:textColor=
      "@color/white"
     
    
   

    

     

    
    

     

                          android:textSize=
      "@dimen/x15" />
     
    
   

    

     

    
    

     

              <
      /LinearLayout>
     
    
   

    

     

    
    

     

      
     
    
   

    

     

    
    

     

       <com.sunchip.vendingmachine.view.BottomStatusBarView
     
    
   

    

     

    
    

     

       android:layout_width="match_parent"
     
    
   

    

     

    
    

     

       android:layout_height="wrap_content"
     
    
   

    

     

    
    

     

       android:layout_alignParentBottom="true" />
     
    
   

    

     

    
    

     

          <
      /RelativeLayout>
     
    
   

    

     

    
    

     

      </ScrollView>
     
    
  

看内容,ScrollView里面的RelativeLayout的布局应该是满的,但是实际上,底部的那个自定义view,没有占满底部的位置,如:

一看就没满屏,解决方案====================

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

 在ScrollView的布局加上这句话 :android:fillViewport="true" 就能解决