Android中ListView分页处理

分页处理的代码比较简单，下面粘贴代码：

 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="wrap_content"    android:layout_height="fill_parent"    android:orientation="vertical"    tools:context=".MainActivity" >   <ListView     android:id="@+id/page"     android:layout_height="600dp"     android:layout_width="wrap_content"     />      <LinearLayout     android:orientation="horizontal"      android:layout_width="fill_parent"       android:layout_height="wrap_content">          <Button      android:id="@+id/forward"      android:text="上一页"      android:layout_width="wrap_content"        android:layout_height="wrap_content"     />          <Button      android:id="@+id/backward"      android:text="下一页"      android:layout_width="wrap_content"        android:layout_height="wrap_content"     />          </LinearLayout></LinearLayout>

 

把Activity和adapter写在一起了，想增大功能的话，可以自己扩展，原理就这些了。

 

package com.example.oneone;import java.util.ArrayList;import java.util.List;import android.os.Bundle;import android.app.Activity;import android.content.Context;import android.view.Gravity;import android.view.Menu;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 MainActivity extends Activity {private ListView lv;private List mData;private Button forward, backward;private int index = 0; // 分页索引private int viewCount = 5; // 每页显示5条PageAdapter mPageAdapter;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);forward = (Button) this.findViewById(R.id.forward);backward = (Button) this.findViewById(R.id.backward);lv = (ListView) this.findViewById(R.id.page); mData = getData(); mPageAdapter = new PageAdapter(this); lv.setAdapter(mPageAdapter);forward.setOnClickListener(listener);backward.setOnClickListener(listener);checkButton();// 初始化没有上一页}private View.OnClickListener listener = new View.OnClickListener() {@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.forward:to_Forward();break;case R.id.backward:to_Backward();break;}}};/** * 上一页 */private void to_Forward() {index--;mPageAdapter.notifyDataSetChanged();checkButton();}/** * 下一页 */private void to_Backward() {index++;mPageAdapter.notifyDataSetChanged();checkButton();}private void checkButton() {if (index <= 0) {forward.setEnabled(false);} else if (mData.size() - index * viewCount <= viewCount) {backward.setEnabled(false);} else {forward.setEnabled(true);backward.setEnabled(true);}}private List getData() {List list = new ArrayList();for (int i = 0; i < 17; i++) {list.add(i);}return list;}class PageAdapter extends BaseAdapter {private Context mContext;public PageAdapter(Context context) {this.mContext = context;}@Overridepublic int getCount() {int temp = index * viewCount;if ((mData.size() - temp) < viewCount) {return (mData.size() - temp);} else {return viewCount;}}@Overridepublic Object getItem(int position) {return position;}@Overridepublic long getItemId(int position) {return position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {TextView tv = new TextView(mContext);tv.setGravity(Gravity.CENTER);tv.setText(mData.get(position + index * viewCount) + "");return tv;}}}

 

此代码比较简单，但是需要强大的功能还需要自己进行修改添加的