【代码生成Android布局】例.用户信息界面的生成

   1.先看下最终要达到的效果图:

     2.新建Activity布局文件activity_common_info.xml

 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:background =  "#eee"

     android:orientation =  "vertical"   >

     < ScrollView

         android:layout_width =  "fill_parent"

         android:layout_height =  "fill_parent"

         android:scrollbars =  "@null"   >

         < LinearLayout

             android:id =  "@+id/ll_content"

             android:layout_width =  "fill_parent"

             android:layout_height =  "wrap_content"

             android:orientation =  "vertical"

             android:paddingLeft =  "20dip"

             android:paddingRight =  "20dip"

             android:paddingTop =  "20dip"   >

         LinearLayout  >

     ScrollView  >

 LinearLayout >

       3.创建实体类RowItem.java 包含两个成员变量key和value，如key是"姓名"，value是"张三"。

public   class  RowItem {

              private  String  key ;

              private  String  value ;

              public  RowItem(String key, String value) {

                          super ();

                          this .  key  = key;

                          this .  value  = value;

            }

              public  String getKey() {

                          return   key ;

            }

              public  String getValue() {

                          return   value ;

            }

}

     4.创建行布局,本文为了美观用到三种行样式，这里仅提供一种样式布局如下，其他两个类似。

    

 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"   >

     < LinearLayout

         android:layout_width =  "fill_parent"

         android:layout_height =  "wrap_content"

         android:background =  "@drawable/about_mid_bg"

         android:gravity =  "center_vertical"

         android:orientation =  "horizontal"

         android:padding =  "8dip"   >

         < TextView

             android:id =  "@+id/tv_key"

             android:layout_width =  "60dip"

             android:layout_height =  "30dip"

             android:layout_marginLeft =  "8dip"

             android:gravity =  "center_vertical"

             android:textColor =  "#222222"

             android:textSize =  "14sp"   />

         < TextView

             android:id =  "@+id/tv_value"

             android:layout_width =  "fill_parent"

             android:layout_height =  "30dip"

             android:gravity =  "center_vertical"

             android:paddingLeft =  "8dip"

             android:textColor =  "#333333"

             android:textSize =  "14sp"   />

     LinearLayout  >

 LinearLayout >

  

5.创建自动生成行的工具类CreateViewUtil.java

   public   class  CreateViewUtil {

              public   static   void  createContentView(Context context,LinearLayout contentLayout,List rowItemList) {

                        View childView;

                        TextView keyTv;

                        TextView valueTv;

                        LayoutInflater layoutInflater;

                        layoutInflater = LayoutInflater. from(context);

                          for  (  int  i = 0; i < rowItemList.size(); i++) {

                                      if  (i == 0) {

                                                childView = layoutInflater.inflate(R.layout. row_top_item  ,  null );

                                    }  else   if  (i == (rowItemList.size() - 1)) {

                                                childView = layoutInflater.inflate(R.layout. row_bottom_item  ,  null  );

                                    }  else  {

                                                childView = layoutInflater.inflate(R.layout. row_mid_item  ,  null );

                                    }

                                    keyTv = (TextView) childView.findViewById(R.id.  tv_key );

                                    valueTv = (TextView) childView.findViewById(R.id.  tv_value );

                                    keyTv.setText(rowItemList.get(i).getKey());

                                    valueTv.setText(rowItemList.get(i).getValue());

                                    contentLayout.addView(childView);

                        }

            }

}

      6.最后创建Activity-----AutoLayoutActivity.class

public   class  AutoLayoutActivity  extends  Activity {

              private  LinearLayout  contentLl ;

              private  List  mList ;

              @Override

              protected   void  onCreate(Bundle savedInstanceState) {

                          super .onCreate(savedInstanceState);

                        setContentView(R.layout.  activity_common_info );

                          contentLl  = (LinearLayout) findViewById(R.id.  ll_content );

                          mList  =  new  ArrayList();

                          mList .add(  new  RowItem(  "姓名" ,  "张三" ));

                          mList .add(  new  RowItem(  "性别" ,  "男" ));

                          mList .add(  new  RowItem(  "年龄" ,  "28" ));

                          mList .add(  new  RowItem(  "学历" ,  "博士" ));

                        CreateViewUtil. createContentView(  this ,  contentLl ,  mList );

            }

}

 释疑：

         大家或许会问，就"姓名"，"性别"几行而已直接在布局文件中写死不是更快，为什么弄得这么麻烦。

这样做的目的是当项目中有大量这种类似的页面时，这种方式方便快捷， 多个类似的Activity可以共用一个布局文件就可以， 不需要写很长的布局文件，更不需要一个一个的找到控件把值设置进去。总之一句话，能少写一行代码就少写一行。