ListView的分页展示

ListView的分页显示

package com.anddev.ListMore.Test;   import android.app.Activity;  import android.os.Bundle;  import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.ListView; import android.widget.TextView;  public class ListMoreTest extends Activity {     ListView lv;     Button btnLeft, btnRight;          View.OnClickListener cl;          MoreAdapter ma;          String[] data = {             "0","1","2","3","4","5","6","7","8","9","10",             "11","12","13","14","15","16","17","18","19","20",             "21","22","23","24","25","26","27","28","29","30",             "31","32","33","34","35","36","37","38","39","40",             "41","42","43","44","45","46","47","48","49","50",             "51","52","53","54","55","56","57","58","59","60",             "61","62","64","64","65","66","67","68","69","70",             "71","72","73","74","75","76","77","78","79","80",             "81","82","83","84","85","86","87","88","89","90",             "91","92","93","94","95","96","97","98","99","100"     };          //用于显示每列5个Item项。     int VIEW_COUNT = 5;          //用于显示页号的索引     int index = 0;          /** Called when the activity is first created. */     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);                  //加载Listview和2个Button         initView();                  //设置ListView的Adapter         ma = new MoreAdapter(this);         lv.setAdapter(ma);                           cl = new Button.OnClickListener(){             @Override             public void onClick(View v) {                 // TODO Auto-generated method stub                 switch(v.getId()){                 case R.id.btnLeft:                     leftView();                     break;                                      case R.id.btnRight:                     rightView();                     break;                 }             }          };                  //添加2个Button的监听事件。         btnLeft.setOnClickListener(cl);         btnRight.setOnClickListener(cl);                  //检查2个Button是否是可用的         checkButton();              }          public void initView(){         lv = (ListView)findViewById(R.id.list);                  btnLeft = (Button)findViewById(R.id.btnLeft);         btnRight = (Button)findViewById(R.id.btnRight);              }          //点击左边的Button，表示向前翻页，索引值要减1.     public void leftView(){         index--;                  //刷新ListView里面的数值。         ma.notifyDataSetChanged();                  //检查Button是否可用。         checkButton();     }        //点击右边的Button，表示向后翻页，索引值要加1.     public void rightView(){         index++;                  //刷新ListView里面的数值。         ma.notifyDataSetChanged();                  //检查Button是否可用。         checkButton();     }          public void checkButton(){         //索引值小于等于0，表示不能向前翻页了，以经到了第一页了。         //将向前翻页的按钮设为不可用。         if(index &lt;=0){             btnLeft.setEnabled(false);         }         //值的长度减去前几页的长度，剩下的就是这一页的长度，如果这一页的长度比View_Count小，表示这是最后的一页了，后面在没有了。         //将向后翻页的按钮设为不可用。         else if(data.length - index*VIEW_COUNT &lt;= VIEW_COUNT){             btnRight.setEnabled(false);         }                  //否则将2个按钮都设为可用的。         else {             btnLeft.setEnabled(true);             btnRight.setEnabled(true);         }              }          //ListView的Adapter，这个是关键的导致可以分页的根本原因。     public class MoreAdapter extends BaseAdapter {         Activity activity;          public MoreAdapter(Activity a){             activity = a;         }                           //设置每一页的长度，默认的是View_Count的值。         @Override         public int getCount() {             // TODO Auto-generated method stub             //return data.length;                          //ori表示到目前为止的前几页的总共的个数。             int ori = VIEW_COUNT * index;                          //值的总个数-前几页的个数就是这一页要显示的个数，如果比默认的值小，说明这是最后一页，只需显示这么多就可以了             if(data.length - ori &lt; VIEW_COUNT ){                 return data.length - ori;             }             //如果比默认的值还要大，说明一页显示不完，还要用换一页显示，这一页用默认的值显示满就可以了。             else {                 return VIEW_COUNT;             }                      }          @Override         public Object getItem(int position) {             // TODO Auto-generated method stub             return position;         }          @Override         public long getItemId(int position) {             // TODO Auto-generated method stub             return position;         }          @Override         public View getView(int position, View convertView, ViewGroup parent) {             // TODO Auto-generated method stub             //return addTestView(position);                          TextView tv = new TextView(activity);             tv.setGravity(Gravity.CENTER);             //TextView要显示的是当前的位置+前几页已经显示的位置个数的对应的位置上的值。             tv.setText(data[position+index*VIEW_COUNT]);             return tv;                      }     } }

&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     &gt; &lt;ListView  android:id="@+id/list"     android:layout_width="fill_parent"      android:layout_height="wrap_content"      /&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="horizontal"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:gravity="bottom"     &gt; &lt;Button  android:id="@+id/btnLeft"     android:layout_width="150dip"      android:layout_height="wrap_content"      android:text="@string/textLeft"     /&gt; &lt;Button  android:id="@+id/btnRight"     android:layout_width="150dip"      android:layout_height="wrap_content"      android:text="@string/textRight"     /&gt; &lt;/LinearLayout&gt; &lt;/LinearLayout&gt;

?摘自：http://www.cnblogs.com/shang53880/archive/2011/01/26/1945587.html ListView的分页展示

ListView的分页展示

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