android ListView的分段显示、分页显示（附源码）

package com.yangguangfu.listview;import android.app.ListActivity;import android.os.Bundle;import android.util.Log;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.AbsListView.OnScrollListener;import android.widget.LinearLayout.LayoutParams;/** *  * @author 阿福 * */public class MainActivity extends ListActivity implements OnScrollListener {private static final String TAG = "MainActivity";private listViewAdapter adapter = new listViewAdapter();private int lastItem = 0;/** * 设置布局显示为目标有多大就多大 */    private LayoutParams WClayoutParams =new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);    /** * 设置布局显示目标最大化 */    private LayoutParams FFlayoutParams =new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,LinearLayout.LayoutParams.FILL_PARENT);    private ProgressBar progressBar;protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);Log.i(TAG, "onCreate(Bundle savedInstanceState)" );    //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);layout.addView(progressBar, WClayoutParams);TextView textView = new TextView(this);textView.setText("加载中...");textView.setGravity(Gravity.CENTER_VERTICAL);layout.addView(textView, FFlayoutParams);layout.setGravity(Gravity.CENTER);LinearLayout loadingLayout = new LinearLayout(this);loadingLayout.addView(layout, WClayoutParams);loadingLayout.setGravity(Gravity.CENTER);//得到一个ListView用来显示条目ListView listView = getListView();//添加到脚页显示listView.addFooterView(loadingLayout);//registerForContextMenu(listView);//setListAdapter(adapter);listView.setOnScrollListener(this);}public void onScroll(AbsListView v, int firstVisibleItem,int visibleItemCount, int totalItemCount) {lastItem = firstVisibleItem + visibleItemCount - 1;System.out.println("lastItem:" + lastItem);Log.i(TAG, "lastItem:" + lastItem);}public void onScrollStateChanged(AbsListView v, int state) {if (lastItem == adapter.count&& state == OnScrollListener.SCROLL_STATE_IDLE) {adapter.count += 10;adapter.notifyDataSetChanged();Log.i(TAG, "lastItem:" + lastItem);}}  /**   * 要用用于生成显示数据   * @author 阿福   *   */class listViewAdapter extends BaseAdapter {int count = 10;public int getCount() {Log.i(TAG, "count:" + count);return count;}public Object getItem(int pos) {Log.i(TAG, "pos:" + pos);return pos;}public long getItemId(int pos) {return pos;}public View getView(int pos, View v, ViewGroup p) {TextView view = new TextView(MainActivity.this);view.setText("阿福播放器 " + pos);Log.i(TAG, "entry: " + pos);view.setTextSize(20f);view.setHeight(80);return view;}}}

package com.yangguangfu.listview;import android.app.ListActivity;import android.os.Bundle;import android.util.Log;import android.view.Gravity;import android.view.View;import android.view.ViewGroup;import android.widget.AbsListView;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.TextView;import android.widget.LinearLayout.LayoutParams;/** *  * @author 阿福 * */public class ButtonLoadingActivity extends ListActivity    {private static final String TAG = "ButtonLoadingActivity";           private  listViewAdapter adapter = new listViewAdapter();    /** * 设置布局显示为目标有多大就多大 */    private LayoutParams WClayoutParams =new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);    /** * 设置布局显示目标最大化 */    private LayoutParams FFlayoutParams =new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,LinearLayout.LayoutParams.FILL_PARENT);        protected void onCreate(Bundle savedInstanceState) {            super.onCreate(savedInstanceState);             Log.i(TAG, "onCreate(Bundle savedInstanceState):" );              LinearLayout layout = new LinearLayout(this);              layout.setOrientation(LinearLayout.HORIZONTAL);                           Button button = new Button(this);              button.setText("点击加载下五条...");              button.setGravity(Gravity.CENTER_VERTICAL);                             layout.addView(button,FFlayoutParams);              layout.setGravity(Gravity.CENTER);              LinearLayout loadingLayout = new LinearLayout(this);              loadingLayout.addView(layout,WClayoutParams);              loadingLayout.setGravity(Gravity.CENTER);                                            ListView listView = getListView();                             listView.addFooterView(loadingLayout);                             button.setOnClickListener(new Button.OnClickListener()                 {         @Override                       public void onClick(View v)                {                           adapter.count += 5;                    Log.i(TAG, "setOnClickListener:" +  adapter.count);                  adapter.notifyDataSetChanged();                  }                    });                         setListAdapter(adapter);       }    public void onScrollStateChanged(AbsListView v, int s) {     Log.i(TAG, "onScrollStateChanged(AbsListView v, int s)");    }         class listViewAdapter extends BaseAdapter {        int count = 10; /* starting amount */        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 textView = new TextView(ButtonLoadingActivity.this);                 textView.setHeight(80);                 textView.setTextSize(20);                 textView.setText("阿福播放器 " + pos);                 Log.i(TAG, "getView:pos:" + pos);                return textView;         }     }}

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