怎么在Android中利用Listview动态加载数据？针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
Java代码：
package org.developerworks.android;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Gravity;import android.view.View;import android.view.ViewGroup;import android.widget.AbsListView;import android.widget.BaseAdapter;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.ProgressBar;import android.widget.TextView;import android.widget.Toast;import android.widget.AbsListView.OnScrollListener;import android.widget.LinearLayout.LayoutParams;public class ListViewForLoading extends Activity implements OnScrollListener { private listViewAdapter adapter = new listViewAdapter(); ListView listView; LinearLayout loadingLayout; private Thread mThread; private LayoutParams mLayoutParams = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); private LayoutParams FFlayoutParams = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT); private ProgressBar progressBar; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); init(); } private void init() { // TODO Auto-generated method stub // 线性布局 LinearLayout layout = new LinearLayout(this); // 设置布局 水平方向 layout.setOrientation(LinearLayout.HORIZONTAL); // 进度条 progressBar = new ProgressBar(this); // 进度条显示位置 progressBar.setPadding(0, 0, 15, 0); // 把进度条加入到layout中 layout.addView(progressBar, mLayoutParams); // 文本内容 TextView textView = new TextView(this); textView.setText("加载中..."); textView.setGravity(Gravity.CENTER_VERTICAL); // 把文本加入到layout中 layout.addView(textView, FFlayoutParams); // 设置layout的重力方向，即对齐方式是 layout.setGravity(Gravity.CENTER); // 设置ListView的页脚layout loadingLayout = new LinearLayout(this); loadingLayout.addView(layout, mLayoutParams); loadingLayout.setGravity(Gravity.CENTER); // 得到一个ListView用来显示条目 listView = (ListView) findViewById(R.id.tv); // 添加到脚页显示 listView.addFooterView(loadingLayout); // 给ListView添加适配器 listView.setAdapter(adapter); // 给ListView注册滚动监听 listView.setOnScrollListener(this); } class listViewAdapter extends BaseAdapter { int count = 10; public int getCount() { return count; } public Object getItem(int pos) { return pos; } public long getItemId(int pos) { return pos; } public View getView(int pos, View v, ViewGroup p) { TextView view; if (v == null) { view = new TextView(ListViewForLoading.this); } else { view = (TextView) v; } view.setText("ListItem " + pos); view.setTextSize(20f); view.setGravity(Gravity.CENTER); view.setHeight(60); return view; } } @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { // TODO Auto-generated method stub if (firstVisibleItem + visibleItemCount == totalItemCount) { // 开线程去下载网络数据 if (mThread == null || !mThread.isAlive()) { mThread = new Thread() { @Override public void run() { try { // 这里放你网络数据请求的方法，我在这里用线程休眠5秒方法来处理 Thread.sleep(5000); } catch (InterruptedException e) { e.printStackTrace(); } Message message = new Message(); message.what = 1; handler.sendMessage(message); } }; mThread.start(); } } } @Override public void onScrollStateChanged(AbsListView view, int scrollState) { // TODO Auto-generated method stub } private Handler handler = new Handler() { @Override public void handleMessage(Message msg) { // TODO Auto-generated method stub switch (msg.what) { case 1: if (adapter.count <= 41) { adapter.count += 10; int currentPage = adapter.count / 10; Toast.makeText(getApplicationContext(), "第" + currentPage + "页", Toast.LENGTH_LONG).show(); } else { listView.removeFooterView(loadingLayout); } // 重新刷新Listview的adapter里面数据 adapter.notifyDataSetChanged(); break; default: break; } } };}main.xml别忘了加这段了
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content"> <ListView android:id="@+id/tv" android:layout_width="wrap_content" android:layout_height="wrap_content"/></LinearLayout>关于怎么在Android中利用Listview动态加载数据问题的解答就分享到这里了，希望以上内容可以对大家有一定的帮助，如果你还有很多疑惑没有解开，可以关注编程网行业资讯频道了解更多相关知识。
