import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.StrictMode;
import android.util.Log;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class LieBiao extends Activity {
ListView listView;
String [] titles={"汽车1","汽车2","汽车3","汽车4"};
String [] texts={"详细信息A","详细信息B","详细信息C","详细信息D"};
String [] mm={"1","2","2","2"};
// String [] titles2;
// String [] texts2;
// String [] mm2;
int [] resIds={R.drawable.mycar,R.drawable.mycar,R.drawable.mycar,R.drawable.mycar};
public String ServerUrl = "http://192.168.11.245:1234/sss/Remote/";
public ProgressDialog progressDialog1;
private SharedPreferences preferences;
private Editor editor;
private String loginName;
// public int test ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//防止线程阻塞
StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
.detectDiskReads().detectDiskWrites().detectNetwork()
.penaltyLog().build());
StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
.detectLeakedSqlLiteObjects().detectLeakedClosableObjects()
.penaltyLog().penaltyDeath().build());
progressDialog1 = ProgressDialog.show(LieBiao.this, "",
"服务器连接中...", true, false);
new Thread() {
@Override
public void run() {
// 向handler发消息
handler.sendEmptyMessage(0);
}
}.start();
// if (test == 1) {
// this.setTitle("您的汽车信息如下");
// //拿到listview对象
// listView=(ListView)this.findViewById(R.id.MyListView);
//
// //设置实时更新数据
//
// listView.setAdapter(new ListViewAdapter(titles,texts,resIds));
// for(int i=0;i<titles.length;i++){//循环数组，arr.length是数组长度
// System.out.println(titles[i]);//打印数组中的元素
// }
// }
this.setTitle("您的汽车信息如下");
//拿到listview对象
listView=(ListView)this.findViewById(R.id.MyListView);
//设置实时更新数据
listView.setAdapter(new ListViewAdapter(titles,texts,resIds));
for(int i=0;i<titles.length;i++){//循环数组，arr.length是数组长度
System.out.println(titles[i]);//打印数组中的元素
}
}
private Handler handler = new Handler() {
@SuppressLint("HandlerLeak")
@Override
public void handleMessage(Message msg) {
// 查询操作
searchcar();
}
};
private void searchcar() {
String brand = null;
String color = null;
String style = null;
String oilMass = null;
String plateNumber = null;
// 打开网络连接
HttpClient client = new DefaultHttpClient();
StringBuilder builder = new StringBuilder();
// 服务器提交地址
HttpGet myget = new HttpGet(ServerUrl
+ "MyCar.ashx?type=mycar&LoginName=123" //+ loginName
//+ editText1.getText().toString()
);
try {
HttpResponse response = client.execute(myget);
BufferedReader reader = new BufferedReader(new InputStreamReader(
response.getEntity().getContent()));
// 填充数据流
for (String s = reader.readLine(); s != null; s = reader.readLine()) {
builder.append(s);
}
Log.i("cat", ">>>>>>" + builder.toString());
// 读取json返回数组
JSONObject jsonObject = new JSONObject(builder.toString());
JSONArray jsonArray = jsonObject.getJSONArray("rows");
ArrayList<String> brandlist = new ArrayList<String>();
ArrayList<String> colorlist = new ArrayList<String>();
ArrayList<String> stylelist = new ArrayList<String>();
ArrayList<String> oilMasslist = new ArrayList<String>();
ArrayList<String> plateNumberlist = new ArrayList<String>();
for(int i=0;i<jsonArray.length();i++){
JSONObject jsonObject2 = (JSONObject)jsonArray.opt(i);
brand = jsonObject2.getString("JSON_品牌");
brandlist.add(brand);
color = jsonObject2.getString("JSON_颜色");
colorlist.add(color);
style = jsonObject2.getString("JSON_车型");
stylelist.add(style);
oilMass = jsonObject2.getString("JSON_油量");
oilMasslist.add(oilMass);
plateNumber = jsonObject2.getString("JSON_车牌号");
plateNumberlist.add(plateNumber);
}
Log.i("cat", ">>>>>>" + brandlist.toString());
Log.i("cat", ">>>>>>" + colorlist.toString());
Log.i("cat", ">>>>>>" + stylelist.toString());
Log.i("cat", ">>>>>>" + oilMasslist.toString());
Log.i("cat", ">>>>>>" + plateNumberlist.toString());
titles = (String[]) brandlist.toArray(new String[brandlist.size()]);
texts = (String[]) colorlist.toArray(new String[colorlist.size()]);
mm = (String[]) stylelist.toArray(new String[stylelist.size()]);
for(int i=0;i<titles.length;i++){//循环数组，arr.length是数组长度
System.out.println(titles[i]);//打印数组中的元素
}
Toast.makeText(LieBiao.this, "查询成功", Toast.LENGTH_SHORT)
.show();
// test = 1;
progressDialog1.dismiss();
} catch (Exception e) {
//Log.v("url返回", "false");
e.printStackTrace();
Toast.makeText(LieBiao.this, "服务器数据查询失败", Toast.LENGTH_SHORT)
.show();
progressDialog1.dismiss();
}
}
//定义适配器
public class ListViewAdapter extends BaseAdapter{
View [] itemViews;
public ListViewAdapter(String [] itemTitles, String [] itemTexts,
int [] itemImageRes){
itemViews = new View[itemTitles.length];
for (int i=0; i<itemViews.length; ++i){
itemViews[i] = makeItemView(itemTitles[i], itemTexts[i],
itemImageRes[i]);
}
}
public int getCount() {
return itemViews.length;
}
public View getItem(int position) {
return itemViews[position];
}
public long getItemId(int position) {
return position;
}
private View makeItemView(String strTitle, String strText, int resId) {
LayoutInflater inflater = (LayoutInflater)LieBiao.this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// 使用View的对象itemView与R.layout.item关联
View itemView = inflater.inflate(R.layout.listview_item, null);
// 通过findViewById()方法实例R.layout.item内各组件
TextView title = (TextView)itemView.findViewById(R.id.text0);
title.setText(strTitle);
TextView text = (TextView)itemView.findViewById(R.id.text1);
text.setText(strText);
ImageView image = (ImageView)itemView.findViewById(R.id.mycar);
image.setImageResource(resId);
return itemView;
}
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null)
return itemViews[position];
return convertView;
}
}
}
我想问一下titles数组在这一句
titles = (String[]) brandlist.toArray(new String[brandlist.size()]);
我又重新赋值了，为什么这一句
listView.setAdapter(new ListViewAdapter(titles,texts,resIds));
里面的titles的值还是一开始赋的值 String [] titles={"汽车1","汽车2","汽车3","汽车4"};
到底是什么问题，我不清楚，新人求教各位大神！
谢谢
