我们有时候会遇到这么一个情况。就是我在一个ListView里面需要显示的东西其实是有种类之分的。比如我要分冬天，夏天，秋天，春天，然后在这每个季节下面再去加载各自的条目数据。还有，比如我们的通讯录，我们需要按A，B，C这样的字母顺序分类然后显示。这个怎么实现呢？
下面我们不用ExpandableListView，而是只用ListView来实现这一显示效果。
MainActivity.java
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package com.xzq.listviewadapter;
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import android.app.Activity;
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import android.os.Bundle;
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import android.view.Window;
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import android.widget.ListView;
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public class MainActivity extends Activity {
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private String[] string = { "A", "B", "C", "D", "E", "F", "G", "H", "I",
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"J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V",
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"W", "X", "Y", "Z" };
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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requestWindowFeature(Window.FEATURE_NO_TITLE);
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setContentView(R.layout.main);
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ListView listview = (ListView) findViewById(R.id.listview);
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MyCustomAdapter adapter = new MyCustomAdapter(this);
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int size = string.length;
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for (int i = 0; i < size; i++) {
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adapter.addSeparatorItem(string[i]);
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for (int k = 0; k < 5; k++) {
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adapter.addItem("item " + k);
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}
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}
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listview.setAdapter(adapter);
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}
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}
MyCustomAdapter.java
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package com.xzq.listviewadapter;
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import java.util.ArrayList;
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import java.util.TreeSet;
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import android.content.Context;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.BaseAdapter;
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import android.widget.TextView;
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public class MyCustomAdapter extends BaseAdapter {
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private static final int TYPE_ITEM = 0;
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private static final int TYPE_SEPARATOR = 1;
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private static final int TYPE_MAX_COUNT = TYPE_SEPARATOR + 1;
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private ArrayList<String> data = new ArrayList<String>();
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private LayoutInflater inflater;
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private TreeSet<Integer> set = new TreeSet<Integer>();
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public MyCustomAdapter(Context context) {
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inflater = LayoutInflater.from(context);
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}
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public void addItem(String item) {
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data.add(item);
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}
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public void addSeparatorItem(String item) {
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data.add(item);
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set.add(data.size() - 1);
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}
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public int getItemViewType(int position) {
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return set.contains(position) ? TYPE_SEPARATOR : TYPE_ITEM;
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}
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@Override
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public int getViewTypeCount() {
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return TYPE_MAX_COUNT;
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}
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@Override
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public int getCount() {
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return data.size();
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}
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@Override
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public Object getItem(int position) {
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return data.get(position);
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}
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@Override
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public long getItemId(int position) {
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return position;
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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ViewHolder holder = null;
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int type = getItemViewType(position);
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if (convertView == null) {
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holder = new ViewHolder();
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switch (type) {
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case TYPE_ITEM:
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convertView = inflater.inflate(R.layout.item1, null);
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holder.textView = (TextView) convertView
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.findViewById(R.id.item1);
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break;
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case TYPE_SEPARATOR:
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convertView = inflater.inflate(R.layout.item2, null);
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holder.textView = (TextView) convertView
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.findViewById(R.id.item2);
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break;
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}
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convertView.setTag(holder);
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} else {
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holder = (ViewHolder) convertView.getTag();
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}
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holder.textView.setText(data.get(position));
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return convertView;
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}
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public static class ViewHolder {
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public TextView textView;
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}
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}
main.xml
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
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android:background="#ffffff"
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android:orientation="vertical" >
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<ListView
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android:id="@+id/listview"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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android:text="@string/hello" />
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</LinearLayout>
item1.xml
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
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android:background="#ffffff"
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android:orientation="vertical" >
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<TextView
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android:id="@+id/item1"
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android:layout_width="fill_parent"
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android:layout_height="30dip"
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android:gravity="center_vertical" />
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</LinearLayout>
item2.xml
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
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android:orientation="vertical" >
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<TextView
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android:id="@+id/item2"
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android:layout_width="fill_parent"
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android:layout_height="30dip"
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android:background="#3c4857"
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android:gravity="center_vertical" />
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</LinearLayout>
Android开发之ListView实现不同品种分类分隔栏的效果(非ExpandableListView实现）
原文：http://blog.csdn.net/minimicall/article/details/39381667
