android 自定义头部悬浮 StickListView

【实例简介】

模仿联系人

【实例截图】

【核心代码】

package com.ljfbest.demo;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;

public class StickListView extends Activity {
	private ListView lv;

	private LinearLayout invis;

	private String[] strs;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_sticky);
		invis = (LinearLayout) findViewById(R.id.invis);

		strs = new String[100];

		for (int i = 0; i < 20; i  ) {
			strs[i] = "data-----"   i;
		}

		lv = (ListView) findViewById(R.id.lv);
		View header = View.inflate(this, R.layout.stick_header, null);//头部内容
		lv.addHeaderView(header);//添加头部
		lv.addHeaderView(View.inflate(this, R.layout.stick_action, null));//ListView条目中的悬浮部分 添加到头部

		lv.setAdapter(new ArrayAdapter<String>(this,
				android.R.layout.simple_list_item_1, strs));
		lv.setOnScrollListener(new OnScrollListener() {

			@Override
			public void onScrollStateChanged(AbsListView view, int scrollState) {

			}

			@Override
			public void onScroll(AbsListView view, int firstVisibleItem,int visibleItemCount, int totalItemCount) {
				if (firstVisibleItem >= 1) {
					invis.setVisibility(View.VISIBLE);
				} else {

					invis.setVisibility(View.GONE);
				}
			}
		});
	}

}