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  • android listView 滑动载入数据 该数据是服务端获取的

    
package com.sunway.works.applycash;
    
import java.util.ArrayList;
    
import java.util.Calendar;
    
import java.util.HashMap;
    
import java.util.List;
    
import java.util.Map;
    
import com.sunway.works.R;
    
import com.sunway.works.applycash.ApplyCashListActivity;
    
import com.sunway.works.cost.apply.EditExpenseActivity;
    
import com.sunway.works.cost.apply.ExpenseAuditActivity;
    
import com.sunway.works.entitys.ApplyCashEntity;
    
import com.sunway.works.entitys.IousEntity;
    
import com.sunway.works.network.HttpService;
    
import com.sunway.works.network.HttpServiceImpl;
    
import android.os.Bundle;
    
import android.os.Handler;
    
import android.os.Message;
    
import android.annotation.SuppressLint;
    
import android.app.Activity;
    
import android.app.DatePickerDialog;
    
import android.app.Dialog;
    
import android.app.Service;
    
import android.app.ActionBar.LayoutParams;
    
import android.content.Context;
    
import android.content.Intent;
    
import android.util.Log;
    
import android.view.Gravity;
    
import android.view.LayoutInflater;
    
import android.view.Menu;
    
import android.view.View;
    
import android.view.ViewGroup;
    
import android.view.Window;
    
import android.view.View.OnClickListener;
    
import android.view.inputmethod.InputMethodManager;
    
import android.view.WindowManager;
    
import android.widget.AbsListView;
    
import android.widget.AbsListView.OnScrollListener;
    
import android.widget.AdapterView.OnItemClickListener;
    
import android.widget.AdapterView;
    
import android.widget.BaseAdapter;
    
import android.widget.Button;
    
import android.widget.DatePicker;
    
import android.widget.EditText;
    
import android.widget.LinearLayout;
    
import android.widget.ListView;
    
import android.widget.PopupWindow;
    
import android.widget.ProgressBar;
    
import android.widget.SimpleAdapter;
    
import android.widget.Spinner;
    
import android.widget.TextView;
    
import android.widget.Toast;
    
public class EditOneCashActivity extends Activity implements
    
OnScrollListener {
    
private ListView listView;
    
private Context context;
    
private View top_title;
    
private TextView tvtitle;
    
private PopupWindow popupWindow;
    
private View view;
    
private View bar1;
    
private View bar2;
    
private Spinner sp_depart;
    
private EditText ed_iounnub;
    
private EditText ed_purpose;
    
private EditText ed_date_from;
    
private EditText ed_date_over;
    
private Button btn_date_from;
    
private Button btn_date_over;
    
private EditText ed_iousum;
    
private Spinner sp_checkstate;
    
private EditText ed_borrower;
    
private Button btn_query;
    
private Handler handler;
    
private static final int DATE_DIALOG_ID = 1;
    
private static final int SHOW_DATAPICK = 0;
    
private int mYear;
    
private int mMonth;
    
private int mDay;
    
private DeleteCashListAdapter adapter;
    
private List<ApplyCashEntity> listdata = new ArrayList<ApplyCashEntity>();
    
private InputMethodManager imm;
    
private Button btn_left;
    
private Button btn_right;
    
private List<ApplyCashEntity> loadDatas; // 载入数据
    
// private ChooseCheckmanAdapter adapters; //适配器
    
private LinearLayout loadingLayout;// 底部载入布局
    
private Map<Integer, Boolean> isCheckedMap = new HashMap<Integer, Boolean>();;
    
private boolean over;// 推断数据是否已所有载入
    
private Thread mThread;// 载入线程
    
private int unb = 1;
    
// 设置布局显示属性
    
private android.widget.LinearLayout.LayoutParams mLayoutParams = new LinearLayout.LayoutParams(
    
LinearLayout.LayoutParams.WRAP_CONTENT,
    
LinearLayout.LayoutParams.WRAP_CONTENT);
    
// 设置布局显示目标最大化属性
    
private android.widget.LinearLayout.LayoutParams FFlayoutParams = new LinearLayout.LayoutParams(
    
LinearLayout.LayoutParams.FILL_PARENT,
    
LinearLayout.LayoutParams.FILL_PARENT);
    
private ProgressBar progressBar;
    
private PopupWindow window;
    
private Intent intent;
    
private ListView list2;
    
Handler mhandler = new Handler() {
    
public void handleMessage(android.os.Message msg) {
    
switch (msg.what) {
    
case 1:// 推断是否数据已所有载入
    
if (!over) {
    
adapter.notifyDataSetChanged();
    
} else {
    
listView.removeFooterView(loadingLayout);
    
Toast.makeText(context, "数据载入完成", Toast.LENGTH_SHORT)
    
.show();
    
}
    
break;
    
case 2:
    
adapter.notifyDataSetChanged();
    
break;
    
}
    
};
    
};
    

    

    
@Override
    
protected void onCreate(Bundle savedInstanceState) {
    
super.onCreate(savedInstanceState);
    
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    
setContentView(R.layout.activity_data_list);
    
context = getApplicationContext();
    
handler = new Handler();
    

    

    
// 初始化底部载入视图
    
LinearLayout layout = new LinearLayout(context);
    
layout.setOrientation(LinearLayout.HORIZONTAL);
    
progressBar = new ProgressBar(context);
    
progressBar.setPadding(0, 0, 15, 0);
    
layout.addView(progressBar, mLayoutParams);
    
TextView textView = new TextView(context);
    
textView.setText("载入中...");
    
textView.setGravity(Gravity.CENTER_VERTICAL);
    
layout.addView(textView, FFlayoutParams);
    
loadingLayout = new LinearLayout(context);
    
loadingLayout.addView(layout, mLayoutParams);
    
loadingLayout.setGravity(Gravity.CENTER);
    

    // 初始化ListView并设定事件
    

            initView();
    
       getListener();
    

    

    }
    
private void getListener() {
    
btn_left.setOnClickListener(new OnClickListener() {
    
@Override
    
public void onClick(View v) {
    
// TODO Auto-generated method stub
    
finish();
    
}
    
});
    
}
    

    
private void initView() {
    
// TODO Auto-generated method stub
    
top_title = this.findViewById(R.id.top_title);
    
tvtitle = (TextView) top_title.findViewById(R.id.tvtitle);
    
btn_left = (Button) top_title.findViewById(R.id.btn_title_left);
    
btn_right = (Button) top_title.findViewById(R.id.btn_title_right);
    
listView = (ListView) findViewById(R.id.data_enterlist);
    

    listView.addFooterView(loadingLayout);
    

                   //   listView.addFooterView()方法一定要在其setadapter()方法之前使用。不然报错
    

    adapter = new DeleteCashListAdapter(EditOneCashActivity.this,
    
listdata, true);
    
listView.setAdapter(adapter);
    
listView.setOnScrollListener(EditOneCashActivity.this);
    
over = false;
    
}
    
@Override
    
public void onScroll(AbsListView view, int firstVisibleItem,
    
int visibleItemCount, int totalItemCount) {
    
if (firstVisibleItem + visibleItemCount == totalItemCount) {
    
if (mThread == null || !mThread.isAlive()) {
    
mThread = new Thread() {
    


    public void run() {
    

       //从网上读取要获得的数据   这是我自己的读取server的数据，个人因须要自己写自己的联网读取数据
    
HttpService service = new HttpServiceImpl();
    

    String i = (10 * (unb - 1) + 1) + "";   //   i 是下标，决定从哪一条数据開始读，10代表每一次读取数据的条数
    

     loadDatas = service.getApplyCashList(param1, i);
    
// 假设载入数据不为空，则将载入得到的数据加入到已有的mData数据中.否则数据载入全然
    
if (loadDatas != null && loadDatas.size() > 0) {
    
listdata.addAll(loadDatas);
    
loadDatas.clear();
    
} else {
    
unb = unb - 1;
    
over = true;
    
}
    
unb++;
    
mhandler.sendEmptyMessage(1);//更新UI
    
};
    
};
    
mThread.start();
    
}
    
}
    

    
}
    

    
@Override
    
public void onScrollStateChanged(AbsListView view, int scrollState) {
    
// TODO Auto-generated method stub
    

    
}
    

    
}
    
   

    

    
    
                
    
                
              
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                原文地址：https://www.cnblogs.com/mfmdaoyou/p/7252591.html
              
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