转：Android listview 实现分页

转载自：http://www.eoeandroid.com/thread-19467-3-1.html

第一种：滚动式分页【估计是你想要的那种】

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;
}
}
}

按钮式分页：
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";

privatelistViewAdapter 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;
}
}
}

2011-2-21 23:39:18 上传 下载附件(18.8 KB)

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