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package com.cszhi.mymonitor;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.json.JSONArray;
import org.json.JSONObject;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class MainActivity extends Activity {
//jsonstring 字符串，用于存放通过url获取的json数据
String jsonstring=null ;
//接口地址
String url= "http://60.191.231.17/get.php" ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//用于等待图标
requestWindowFeature(Window. FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout. activity_main);
Button bn=(Button) findViewById(R.id. bn);
//处理线程传递来的消息
final Handler myhandler =new Handler(){
public void handleMessage(Message msg){
ListView lv=(ListView) findViewById(R.id. lv);
String[] from={"id","hostname" ,"ip" ,"rootpartion" ,"uptime" ,"time" };
int[] to={R.id.id,R.id.hostname ,R.id.ip,R.id.rootpartion,R.id. uptime,R.id.time };
List<map <string,?>> listb= new ArrayList</map><map <string,?>>();
Map<string ,String> b= new HashMap</string><string , String>();
b.put( "id", "id" );
b.put( "hostname", "hostname" );
b.put( "ip", "ip" );
b.put( "rootpartion","rootpartion" );
b.put( "uptime","uptime" );
b.put( "time", "time" );
listb.add(b);
ListView lvtitle=(ListView) findViewById(R.id.lvTitle );
SimpleAdapter adapterb= new SimpleAdapter(MainActivity.this ,listb,R.layout.server_list,from,to);
lvtitle.setAdapter(adapterb);
List<map <string,?>> list= new ArrayList</map><map <string,?>>();
try{
JSONArray jsonArray= new JSONArray(jsonstring );
//解析json对象，并放入hashmap中
for(int i=0;i<jsonarray .length();i++){
JSONObject item=jsonArray.getJSONObject(i);
Map<string,String> m=new HashMap<string , String>();
m.put( "id", item.getString("id" ));
m.put( "hostname", item.getString("hostname" ));
m.put( "ip", item.getString("ip" ));
m.put( "rootpartion",item.getString("rootpartion" ));
m.put( "uptime", item.getString("uptime" ));
m.put( "time", item.getString("time" ));
list.add(m);
}
} catch(Exception e){
e.printStackTrace();
}
//这里的this是Handler，因为这个方法是在放在Handler里的，所以这里不应该使用this，而应该使用MainActivity.this(MainActivity是类名)
SimpleAdapter adapter= new SimpleAdapter(MainActivity.this ,list,R.layout.server_list,from,to);
lv.setAdapter(adapter);
//关闭等待图标（右上角的转圈）
setProgressBarIndeterminateVisibility( false);
}
};
//Runnable接口
final Runnable st=new Runnable() {
@Override
public void run() {
data( url);
myhandler.sendEmptyMessage(0);
}
};
//检查是否有网络连接
if(!checkNet( this)){
Toast. makeText(this, "网络连接失败，请检查网络" ,Toast.LENGTH_LONG).show();
} else{
new Thread(st).start();
setProgressBarIndeterminateVisibility( true);
}
//单击按钮
bn.setOnClickListener( new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
//如果有网路连接，创建新线程，传入 st接口，并启动该线程
if(!checkNet(MainActivity. this)){
Toast. makeText(MainActivity.this, "网络连接失败，请检查网络" ,Toast.LENGTH_LONG).show();
return;
} else{
new Thread(st).start();
//显示等待图标（右上角的转圈）
setProgressBarIndeterminateVisibility( true);
}
}
});
}
//获取url数据，并赋值给jsonstring
private void data(String url){
MyHttp myHttp= new MyHttp();
jsonstring= myHttp.httpGet(url);
}
//检查是否有网络的函数
public static boolean checkNet(Context context) {
try {
NetworkInfo networkInfo = (( ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE )).getActiveNetworkInfo();
if (networkInfo != null) {
Log. d("httpjson", "true");
return true ;
} else {
Log. d("httpjson", "false");
return false ;
}
} catch (Exception e) {
e.printStackTrace();
return false ;
}
}
}
</string></jsonarray></map></string></map>
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