Android分页中显示出下面翻页的导航栏的布局实例代码

当页面条目过多的时候需要分页，要在布局中显示出分页的相关布局，使用android:layout_weight="11"

activity_call_safe.xml

<?xml version="1.0" encoding="utf-8"?>

逻辑文件，实现分页显示，页面的跳转，页数的显示，数据的删除同时更新ListView

package com.ldw.safe.Activity;import java.util.List;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.text.TextUtils;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.Adapter;import android.widget.EditText;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;import com.ldw.safe.R;import com.ldw.safe.adapter.MyBaseAdapter;import com.ldw.safe.bean.BlackNumberInfo;import com.ldw.safe.db.dao.BlackNumberDao;public class CallSafeActivity extends Activity { private ListView list_view_callsafe; private List blackNumberInfos; private LinearLayout ll_pb; private BlackNumberDao dao; private TextView tv_page_number; private int pageNumber; private int mPageSize = 20;//每一页显示多少数据 private int mCurrentPageNumber = 0;//当前页面 private int totalPage; private CallSafeAdapter adapter; @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_call_safe);    initUi();    initData(); } //初始化数据 private Handler handler = new Handler(){ @Override    public void handleMessage(Message msg) {  //通过总数，和每页显示多少条显示有多少条数据  tv_page_number.setText(mCurrentPageNumber + "/" + totalPage);  //数据初始化结束，关闭家在全的展示  ll_pb.setVisibility(View.INVISIBLE);  adapter = new CallSafeAdapter(blackNumberInfos, CallSafeActivity.this);  //配置适配器  list_view_callsafe.setAdapter(adapter); } }; private EditText et_page_number; //初始化数据 private void initData() { //防止阻塞主线程，在子线程中初始化数据（后期数据会很多） new Thread(){  @Override  public void run(){  dao = new BlackNumberDao(CallSafeActivity.this);  //获取到总条数和页数  totalPage = dao.getTotalNumber() / mPageSize;  //获取到表的所有数据  //blackNumberInfos = dao.findAll();  //分页显示数据  blackNumberInfos = dao.findPar(mCurrentPageNumber, mPageSize);  handler.sendEmptyMessage(0);  } }.start(); } //初始化UI private void initUi() { ll_pb = (LinearLayout) findViewById(R.id.ll_pb);    //初始化的时候展示加载的圆圈    ll_pb.setVisibility(View.VISIBLE); list_view_callsafe = (ListView) findViewById(R.id.list_view_callsafe); tv_page_number = (TextView) findViewById(R.id.tv_page_number); et_page_number = (EditText) findViewById(R.id.et_page_number); } //对代码进行优化，继承自定义MyBaseAdapter，MyBaseAdapter继承自BaseAdapter封装一些常用的方法 private class CallSafeAdapter extends MyBaseAdapter{ private CallSafeAdapter(List lists, Context mContext){  super(lists, mContext); } @Override public View getView(int position, View convertView, ViewGroup parent) {  //谷歌推出的优化方案  ViewHolder holder;  if(convertView == null){  convertView = View.inflate(CallSafeActivity.this, R.layout.item_call_safe, null);  holder = new ViewHolder();  holder.tv_number = (TextView) convertView.findViewById(R.id.tv_number);  holder.tv_mode = (TextView) convertView.findViewById(R.id.tv_mode);  holder.iv_delete = (ImageView) convertView.findViewById(R.id.iv_delete);  convertView.setTag(holder);  }else{  holder = (ViewHolder) convertView.getTag();  }  holder.tv_number.setText(lists.get(position).getNumber());  String mode = lists.get(position).getMode();  if(mode.equals("1")){  holder.tv_mode.setText("电话和短信拦截");  }else if(mode.equals("2")){  holder.tv_mode.setText("电话拦截");  }else if(mode.equals("3")){  holder.tv_mode.setText("短信拦截");  }  final BlackNumberInfo info = lists.get(position);  //监听删除数据按钮，删除数据  holder.iv_delete.setOnClickListener(new OnClickListener(){  @Override  public void onClick(View v) {   String number = info.getNumber();   boolean result = dao.delete(number);   if(result){   Toast.makeText(CallSafeActivity.this, "删除成功", Toast.LENGTH_SHORT).show();   lists.remove(info);   //更新ListView   adapter.notifyDataSetChanged();   }else{   Toast.makeText(CallSafeActivity.this, "删除失败", Toast.LENGTH_SHORT).show();   }  }  });  return convertView;  /*  //谷歌推出的优化方案  ViewHolder holder;  if(convertView == null){  convertView = View.inflate(CallSafeActivity.this, R.layout.item_call_safe, null);  holder = new ViewHolder();  holder.tv_number = (TextView) convertView.findViewById(R.id.tv_number);  holder.tv_mode = (TextView) convertView.findViewById(R.id.tv_mode);  convertView.setTag(holder);  }else{  holder = (ViewHolder) convertView.getTag();  }  holder.tv_number.setText(blackNumberInfos.get(position).getNumber());  String mode = blackNumberInfos.get(position).getMode();  if(mode.equals("1")){  holder.tv_mode.setText("电话和短信拦截");  }else if(mode.equals("2")){  holder.tv_mode.setText("电话拦截");  }else if(mode.equals("3")){  holder.tv_mode.setText("短信拦截");  }  return convertView;  */  /*初步的优化  convertView = View.inflate(CallSafeActivity.this, R.layout.item_call_safe, null);  TextView tv_number = (TextView) convertView.findViewById(R.id.tv_number);  TextView tv_mode = (TextView) convertView.findViewById(R.id.tv_mode);  tv_number.setText(blackNumberInfos.get(position).getNumber());  String mode = blackNumberInfos.get(position).getMode();  if(mode.equals("1")){  tv_mode.setText("电话和短信拦截");  }else if(mode.equals("2")){  tv_mode.setText("电话拦截");  }else if(mode.equals("3")){  tv_mode.setText("短信拦截");  }  return convertView;  */  /*传统的方式  View view = View.inflate(CallSafeActivity.this, R.layout.item_call_safe, null);  TextView tv_number = (TextView) view.findViewById(R.id.tv_number);  TextView tv_mode = (TextView) view.findViewById(R.id.tv_mode);  tv_number.setText(blackNumberInfos.get(position).getNumber());  String mode = blackNumberInfos.get(position).getMode();  if(mode.equals("1")){  tv_mode.setText("电话和短信拦截");  }else if(mode.equals("2")){  tv_mode.setText("电话拦截");  }else if(mode.equals("3")){  tv_mode.setText("短信拦截");  }  return view;  */ }  } static class ViewHolder{ TextView tv_number; TextView tv_mode; ImageView iv_delete; } /* * 上一页 */ public void prePage(View v){ //页码不能超过范围 if(mCurrentPageNumber <= 0){  Toast.makeText(this, "这已经是第一页", Toast.LENGTH_SHORT).show();  return; } mCurrentPageNumber --; initData(); } /* * 下一页 */ public void nextPage(View v){ //页码不能超过范围 if(mCurrentPageNumber >= totalPage - 1){  Toast.makeText(this, "这已经是最后一页", Toast.LENGTH_SHORT).show();  return; } mCurrentPageNumber ++; initData(); } /* * 跳转页面 */ public void jump(View v){ String jump_page = et_page_number.getText().toString(); if(TextUtils.isEmpty(jump_page)){  Toast.makeText(this, "请输入正确的页码", Toast.LENGTH_SHORT).show(); }else{  //读取的字符串转换成int  int pageNumber = Integer.parseInt(jump_page);  if(pageNumber >=0 && pageNumber<= totalPage - 1){  mCurrentPageNumber = pageNumber;  initData();  }else{  Toast.makeText(this, "请输入正确的页码", Toast.LENGTH_SHORT).show();  } } }}

以上所述是小编给大家介绍的Android分页中显示出下面翻页的导航栏的布局实例代码，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！

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