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ScrollView不能用RelativeLayout的解决方案

2017-11-06 508

RelativeLayout的意义：

   布局各个部件的相对布局。使得界面空间合理利用。

   

一、ScrollView局限：

  滑动的只能是linearlayout，甚至整个布局都不能有RelativeLayout。这使得让人觉得ScrollView控件有点鸡肋。其实不然..........

   linearlayout跟RelativeLayout布局在界面上来看只是空间间隔的区别，而在liearlayout中有一个<View/>能占用空间，单单用linearlayout要达到    RelativeLayout的效果，可以用<View/>来实现。


二、View用法

   <View

   android:layout_width="fill_parent"
       android:layout_height="10sp"

   />

三、例子

   下面的界面

   092719843.jpg

1）用RelativeLayout实现非常容易实现

   RelativeLayout代码

   

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< RelativeLayout  xmlns:android = "http://schemas.android.com/apk/res/android"
     xmlns:tools = "http://schemas.android.com/tools"
     android:layout_width = "match_parent"
     android:layout_height = "fill_parent"
     tools:context = ".ClientActivity"  >
     < ImageView
         android:id = "@+id/clientinfo_headpicture"
         android:layout_width = "90sp"
         android:layout_height = "90sp"
         android:background = "@drawable/client_pic_back"
         android:src = "@drawable/client_pic_src"  />
     < TextView
         android:id = "@+id/client_tel"
         android:layout_width = "match_parent"
         android:layout_height = "30sp"
         android:layout_alignBottom = "@+id/clientinfo_headpicture"
         android:layout_toRightOf = "@+id/clientinfo_heaspicture"
         android:background = "@color/black"
         android:ems = "12"
         android:singleLine = "true"
         android:text = "电话号码"
         android:textColor = "@color/white"  />
     < Button
         android:id = "@+id/client_tel_edit"
         android:layout_width = "50sp"
         android:layout_height = "30sp"
         android:layout_above = "@+id/client_tel"
         android:layout_alignParentRight = "true"
         android:background = "@drawable/cliebt_button_edittel"
         android:text = "编辑"
         android:textColor = "@color/blue"  />
     < TextView
         android:layout_width = "match_parent"
         android:layout_height = "30sp"
         android:layout_alignLeft = "@+id/client_tel"
         android:layout_alignParentTop = "true"
         android:background = "@color/black"
         android:singleLine = "true"
         android:text = "用户名"
         android:textColor = "@color/white"
         android:textSize = "24sp"  />
     < View
         android:id = "@+id/view1"
         android:layout_width = "fill_parent"
         android:layout_height = "10sp"
         android:layout_alignParentRight = "true"
         android:layout_below = "@+id/clientinfo_headpicture"
         android:background = "@color/blue"  />
     < RelativeLayout
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:layout_alignParentLeft = "true"
         android:layout_below = "@+id/view1"
         android:background = "@drawable/client_moreinfo_back"  >
         < Button
             android:id = "@+id/client_myaddress"
             android:layout_width = "50sp"
             android:layout_height = "30sp"
             android:background = "@drawable/client_address"  />
         < TextView
             android:id = "@+id/client_myaddress_text"
             android:layout_width = "wrap_content"
             android:layout_height = "30sp"
             android:layout_alignBaseline = "@+id/client_myaddress"
             android:layout_alignBottom = "@+id/client_myaddress"
             android:layout_toRightOf = "@+id/client_myaddress"
             android:text = "我的地址"
             android:textColor = "@color/blue"
             android:textSize = "24sp"  />
         < View
             android:id = "@+id/client_myaddress_div"
             android:layout_width = "fill_parent"
             android:layout_height = "1sp"
             android:layout_alignParentLeft = "true"
             android:layout_below = "@+id/client_myaddress"
             android:background = "@color/blue"  />
         < TextView
             android:id = "@+id/client_myaddress_addtext"
             android:layout_width = "160sp"
             android:layout_height = "50sp"
             android:layout_alignLeft = "@+id/client_myaddress_div"
             android:layout_below = "@+id/client_myaddress_div"
             android:layout_marginLeft = "14sp"
             android:text = "31栋127寝室电话18607060000"
             android:textColor = "@color/blue"  />
         < Button
             android:id = "@+id/client_myaddress_edit"
             android:layout_width = "40sp"
             android:layout_height = "40sp"
             android:layout_alignRight = "@+id/client_myaddress_div"
             android:layout_alignTop = "@+id/client_myaddress_addtext"
             android:background = "@drawable/client_edit"  />
         < View
             android:id = "@+id/client_buyhistory_div"
             android:layout_width = "fill_parent"
             android:layout_height = "5sp"
             android:layout_alignParentLeft = "true"
             android:layout_below = "@+id/client_myaddress_addtext"
             android:background = "@color/blue"  />
         < Button
             android:id = "@+id/client_buyhistory"
             android:layout_width = "50sp"
             android:layout_height = "30sp"
             android:layout_below = "@+id/client_buyhistory_div"
             android:layout_marginTop = "1sp"
             android:layout_toLeftOf = "@+id/client_myaddress_text"
             android:background = "@drawable/client_shopcar"  />
         < TextView
             android:id = "@+id/client_buyhistory_text"
             android:layout_width = "100sp"
             android:layout_height = "30sp"
             android:layout_alignRight = "@+id/client_myaddress_text"
             android:layout_alignTop = "@+id/client_buyhistory"
             android:text = "已购买"
             android:textColor = "@color/blue"
             android:textSize = "24sp"  />
         < View
             android:id = "@+id/client_buyhistory_div_div"
             android:layout_width = "fill_parent"
             android:layout_height = "1sp"
             android:layout_alignParentLeft = "true"
             android:layout_below = "@+id/client_buyhistory"
             android:background = "@color/blue"  />
         < TextView
             android:id = "@+id/client_buyhistory_info"
             android:layout_width = "160sp"
             android:layout_height = "30sp"
             android:layout_alignLeft = "@+id/client_buyhistory_div_div"
             android:layout_below = "@+id/client_buyhistory_div_div"
             android:text = "北京烤鸭100元"
             android:textColor = "@color/blue"  />
         < Button
             android:id = "@+id/client_buyhistory_eidt"
             android:layout_width = "40sp"
             android:layout_height = "40sp"
             android:layout_alignParentRight = "true"
             android:layout_centerVertical = "true"
             android:background = "@drawable/client_edit"  />
         < View
             android:id = "@+id/client_store_div"
             android:layout_width = "fill_parent"
             android:layout_height = "5sp"
             android:layout_alignParentRight = "true"
             android:layout_below = "@+id/client_buyhistory_eidt"
             android:background = "@color/blue"  />
         < Button
             android:id = "@+id/client_store"
             android:layout_width = "50sp"
             android:layout_height = "30sp"
             android:layout_alignParentLeft = "true"
             android:layout_below = "@+id/client_store_div"
             android:background = "@drawable/client_stored"  />
         < TextView
             android:id = "@+id/client_store_text"
             android:layout_width = "80sp"
             android:layout_height = "30sp"
             android:layout_alignBaseline = "@+id/client_store"
             android:layout_alignBottom = "@+id/client_store"
             android:layout_alignLeft = "@+id/client_myaddress_text"
             android:text = "收藏"
             android:textColor = "@color/blue"
             android:textSize = "24sp"  />
         < View
             android:id = "@+id/client_store_div_div"
             android:layout_width = "fill_parent"
             android:layout_height = "1sp"
             android:layout_alignParentLeft = "true"
             android:layout_below = "@+id/client_store"
             android:background = "@color/blue"  />
         < Button
             android:id = "@+id/client_store_edit"
             android:layout_width = "40sp"
             android:layout_height = "40sp"
             android:layout_alignParentRight = "true"
             android:layout_alignTop = "@+id/client_store_info"
             android:background = "@drawable/client_edit"  />
         < View
             android:id = "@+id/View01"
             android:layout_width = "fill_parent"
             android:layout_height = "5sp"
             android:layout_alignParentBottom = "true"
             android:layout_centerHorizontal = "true"
             android:background = "@color/blue"  />
         < TextView
             android:id = "@+id/client_store_info"
             android:layout_width = "160sp"
             android:layout_height = "40sp"
             android:layout_alignLeft = "@+id/View01"
             android:layout_below = "@+id/client_store_div_div"
             android:text = "北京烤鸭30元"
             android:textColor = "@color/blue"  />
     </ RelativeLayout >
</ RelativeLayout >



但因为有个项目用到的是TabHost，对子activity的布局有限制，上面的布局超过范围。所以要用到ScrollView,为达到上面的布局，要用到<View/>控件。

2)使用view控件的代码如下

   

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< ScrollView  xmlns:android = "http://schemas.android.com/apk/res/android"
     xmlns:tools = "http://schemas.android.com/tools"
     android:layout_width = "wrap_content"
     android:layout_height = "wrap_content"
     android:fadingEdge = "vertical"
     android:scrollbars = "vertical"  >
                                                                                  
     < LinearLayout
         android:orientation = "vertical"
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:background = "@drawable/account_pic_back"
         >
         < TextView
         android:layout_width = "match_parent"
         android:layout_height = "30sp"
         android:background = "@color/black"
         android:singleLine = "true"
         android:text = "用户名"
         android:textColor = "@color/white"
         android:textSize = "24sp"  />
          < LinearLayout
         android:orientation = "horizontal"
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:background = "@drawable/account_pic_back"
         >
              < ImageView
         android:id = "@+id/clientinfo_headpicture"
         android:layout_width = "90sp"
         android:layout_height = "90sp"
         android:background = "@drawable/client_pic_back"
         android:src = "@drawable/client_pic_src"  />
               < Button
         android:id = "@+id/client_tel_edit"
         android:layout_width = "50sp"
         android:layout_height = "30sp"
         android:background = "@drawable/cliebt_button_edittel"
         android:text = "编辑"
         android:textColor = "@color/blue"  />
          </ LinearLayout >>
                                                                                    
     < TextView
         android:id = "@+id/client_tel"
         android:layout_width = "match_parent"
         android:layout_height = "30sp"
         android:background = "@color/black"
         android:ems = "12"
         android:singleLine = "true"
         android:text = "电话号码"
         android:textColor = "@color/white"  />
                                                                                 
     < View
         android:layout_width = "fill_parent"
         android:layout_height = "10sp"
         android:background = "@color/blue"  />
      < LinearLayout
         android:orientation = "horizontal"
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:background = "@drawable/account_pic_back"
         >
           < Button
             android:id = "@+id/client_myaddress"
             android:layout_width = "50sp"
             android:layout_height = "30sp"
             android:background = "@drawable/client_address"  />
         < TextView
             android:id = "@+id/client_myaddress_text"
             android:layout_width = "wrap_content"
             android:layout_height = "30sp"
             android:text = "我的地址"
             android:textColor = "@color/blue"
             android:textSize = "24sp"  />
      </ LinearLayout >
    < View
             android:layout_width = "fill_parent"
             android:layout_height = "1sp"
             android:background = "@color/blue"  />
                                                                                    
     < LinearLayout
         android:orientation = "horizontal"
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:background = "@drawable/account_pic_back"
         >
       < TextView
             android:id = "@+id/client_myaddress_addtext"
             android:layout_width = "160sp"
             android:layout_height = "50sp"
             android:layout_alignLeft = "@+id/client_myaddress_div"
             android:layout_below = "@+id/client_myaddress_div"
             android:layout_marginLeft = "14sp"
             android:text = "31栋127寝室电话18607060000"
             android:textColor = "@color/blue"  />
         < View
         android:layout_width = "100sp"
         android:layout_height = "40sp"
         />
                                                                                    
         < Button
             android:id = "@+id/client_myaddress_edit"
             android:layout_width = "40sp"
             android:layout_height = "40sp"
             android:background = "@drawable/client_edit"  />
         </ LinearLayout >
         < View
         android:layout_width = "fill_parent"
         android:layout_height = "10sp"
         android:background = "@color/blue"  />
           < LinearLayout
         android:orientation = "horizontal"
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:background = "@drawable/account_pic_back"
         >
         < Button
             android:id = "@+id/client_buyhistory"
             android:layout_width = "50sp"
             android:layout_height = "30sp"
             android:layout_marginTop = "1sp"
             android:background = "@drawable/client_shopcar"  />
         < TextView
             android:id = "@+id/client_buyhistory_text"
             android:layout_width = "100sp"
             android:layout_height = "30sp"
             android:text = "已购买"
             android:textColor = "@color/blue"
             android:textSize = "24sp"  />
         </ LinearLayout >
          < View
         android:id = "@+id/view1"
         android:layout_width = "fill_parent"
         android:layout_height = "1sp"
         android:background = "@color/blue"  />
           < LinearLayout
         android:orientation = "horizontal"
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:background = "@drawable/account_pic_back"
         >
          < TextView
             android:id = "@+id/client_buyhistory_info"
             android:layout_width = "160sp"
             android:layout_height = "30sp"
             android:text = "北京烤鸭100元"
             android:textColor = "@color/blue"  />
          < View
         android:layout_width = "100sp"
         android:layout_height = "40sp"
         />
                                                                                       
         < Button
             android:id = "@+id/client_buyhistory_eidt"
             android:layout_width = "40sp"
             android:layout_height = "40sp"
             android:background = "@drawable/client_edit"  />
           </ LinearLayout >
        < View
         android:layout_width = "fill_parent"
         android:layout_height = "1sp"
         android:background = "@color/blue"  />
                                                                                       
     < LinearLayout
         android:orientation = "horizontal"
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:background = "@drawable/account_pic_back"
         >
         < Button
             android:id = "@+id/client_store"
             android:layout_width = "50sp"
             android:layout_height = "30sp"
             android:background = "@drawable/client_stored"  />
         < TextView
             android:id = "@+id/client_store_text"
             android:layout_width = "80sp"
             android:layout_height = "30sp"
             android:text = "收藏"
             android:textColor = "@color/blue"
             android:textSize = "24sp"  />
         < View
             android:layout_width = "fill_parent"
             android:layout_height = "1sp"
             android:background = "@color/blue"  />
                                                                                      
     </ LinearLayout >    
        < LinearLayout
         android:orientation = "horizontal"
         android:layout_width = "fill_parent"
         android:layout_height = "match_parent"
         android:background = "@drawable/account_pic_back"
         >
     < TextView
             android:id = "@+id/client_store_info"
             android:layout_width = "160sp"
             android:layout_height = "40sp"
             android:text = "北京烤鸭30元"
             android:textColor = "@color/blue"  />
     < View
         android:layout_width = "100sp"
         android:layout_height = "40sp"
         />
     < Button
             android:id = "@+id/client_store_edit"
             android:layout_width = "40sp"
             android:layout_height = "40sp"
             android:background = "@drawable/client_edit"  />
     </ LinearLayout > 
     < View
             android:layout_width = "fill_parent"
             android:layout_height = "5sp"
             android:background = "@color/blue"  />
     </ LinearLayout >
                                                                                  
</ ScrollView >



通过View完美的调出RelativeLayout的效果


本文转自lilin9105 51CTO博客，原文链接：http://blog.51cto.com/7071976/1217017，如需转载请自行联系原作者

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将Android实例导入project

1,刚刚直接导入时，会遇到以下问题 An Eclipse project already exites in this directory.但是还好，报错后有说明怎么做。 遇到问题如下： 如果就这个样子完成后，会出现Your project contains error(s),please fix them befor running your application. 解决办法如下： File ->Import ->General->Existing project into Workspace File ->Import ->General->Existing project into Workspace 之后 选择所要项目导入 本文转自luojinghappy 51CTO博客，原文链接：http://blog.51cto.com/luojinghappy/317576，如需转载请自行联系原作者
2017-11-07
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