直接上代码:
IaiaiActivity.java:
package com.iaiai.activity;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.LinearLayout.LayoutParams;import android.widget.ListView;import android.widget.TextView;/** * * <p> * Title: IaiaiActivity.java * </p> * <p> * E-Mail: [email protected] * </p> * <p> * QQ: 176291935 * </p> * <p> * Http: iaiai.iteye.com * </p> * <p> * Create time: 2011-6-26 * </p> * * @author 丸子 * @version 0.0.1 */public class IaiaiActivity extends ListActivity { private static final String TAG = "IaiaiActivity"; 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(IaiaiActivity.this); textView.setHeight(50); textView.setText("丸子测试数据 " + pos); return textView; } }}
运行结果:
