【代码】Android ListView布局分组的改进

实现该ListView布局的主要代码：
1、程序主界面 SeparateListView.java

复制代码 package whu.iss.wuxianglong;                                                                import java.util.ArrayList; import java.util.List;                                                                import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.TextView;                                                                public class SeparateListView extends Activity {     ListView listView;     MyAdapter myAdapter;     public List<String> listTag = new ArrayList<String>();                                                                    /** Called when the activity is first created. */     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);                                                                                listView = (ListView) findViewById(R.id.list);         myAdapter = new MyAdapter(this,                 android.R.layout.simple_expandable_list_item_1, getData());         listView.setAdapter(myAdapter);     }     private List<String> getData() {         List<String> data = new ArrayList<String>();         int i = 0;                                                                        data.add("A");         listTag.add("A");         data.add("aa试数据" + (i++));         data.add("a试数据" + (i++));         data.add("aa试数据" + (i++));         listTag.add("B");         data.add("B");         data.add("bb试数据" + (i++));         data.add("b试数据" + (i++));         data.add("b试数据" + (i++));               data.add("b试数据" + (i++));         listTag.add("C");         data.add("C");         data.add("c测试数据" + (i++));         data.add("c测试数据" + (i++));         listTag.add("D");         data.add("D");         data.add("d测试数据" + (i++));         data.add("d测试数据" + (i++));         data.add("d测试数据" + (i++));         listTag.add("E");         data.add("E");         data.add("e测试数据" + (i++));         data.add("e测试数据" + (i++));         data.add("e测试数据" + (i++));         listTag.add("F");         data.add("F" );         data.add("f测试数据" + (i++));         return data;     }                                                                                                                                       class MyAdapter extends ArrayAdapter<String> {                                                                        public MyAdapter(Context context,  int textViewResourceId,                 List<String> objects) {             super(context,  textViewResourceId, objects);                                                                                }                                                                        @Override         public boolean areAllItemsEnabled() {             return false;         }                                                                        @Override         public boolean isEnabled(int position) {             // 如果-开头，则该项不可选             return !listTag.contains(getItem(position));         }                                                                        @Override         public View getView(int position, View convertView, ViewGroup parent) {             View view = convertView;           //根据标签类型加载不通的布局模板             if(listTag.contains(getItem(position))){                 //如果是标签项                 view = LayoutInflater.from(getContext()).inflate(R.layout.group_list_item_tag, null);             }else{                 //否则就是数据项                 view = LayoutInflater.from(getContext()).inflate(R.layout.group_list_item, null);             }           //显示名称             TextView textView = (TextView) view.findViewById(R.id.group_list_item_text);             textView.setText(getItem(position));           //返回重写的view             return view;         }                                                                            } }

2、程序主界面布局文件main.xml

复制代码 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/ apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     >     <ListView         android:id="@+id/list"         android:layout_width="fill_parent"         android:layout_height="wrap_content">     </ListView> </LinearLayout>

3、ListView中数据部分样式布局文件group_list_item.xml

复制代码 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="horizontal"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:padding="5dip">     <ImageView        android:src="@drawable/icon"        android:layout_width="50px"        android:layout_height="50px">     </ImageView>     <TextView        android:id="@+id/group_list_item_text"        android:layout_width="wrap_content"        android:layout_height="fill_parent"        android:paddingLeft="5dip"        android:gravity="center_vertical">     </TextView> </LinearLayout>

4、ListView中分组标志行的样式布局文件group_list_item_tag.xml

复制代码 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:background="#555555"     android:paddingLeft="10dip">     <TextView        android:id="@+id/group_list_item_text"        android:layout_width="wrap_content"        android:layout_height="20dip"        android:textColor="#ffffff"        android:gravity="center_vertical">     </TextView> </LinearLayout>