** 我希望一个列表项在返回的对象中包含每个患者的拳头、姓氏和患者 ID。下面是我返回的 jsonObject**。
{"tag":"available_patient","success":1,"error":0,"patients":
[{"p_id":"1","fname":"Peter","lname":"Lule"},
{"p_id":"2","fname":"Edgar","lname":"Ainebyoona"},
{"p_id":"5","fname":"Andrew","lname":"mugasa"}]}
我还使用了两个 xml 文件，一个包含 listView，另一个包含 firstname、last name 和 patient_id，如下所示。
主要的.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:background="@drawable/viewp_bg">
<Button
android:id="@+id/bviewPatients"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="View Patients"
android:layout_marginLeft="200dp"
android:layout_marginTop="25dp" />
</LinearLayout>
<ListView android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/mainListView">
</ListView>
</LinearLayout>
患者列表项目
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="8px">
<TextView
android:id="@+id/firstName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView
android:id="@+id/lastName"
android:layout_marginLeft="6px"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@id/firstName"/>
<TextView
android:id="@+id/id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/firstName"/>
</RelativeLayout>
查看病人.java
package mut.doc.pat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import library.UserFunctions;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class ViewPatients2 extends Activity implements OnClickListener {
ListView mainListView;
Button viewPatients;
Bundle gotbasket;
ArrayList<String> gotjsonResult;
JSONArray jsonArray = null;
SimpleAdapter adapter;
private static String KEY_SUCCESS = "success";
private static final String TAG_ID = "p_id";
private static final String TAG_FNAME = "fname";
private static final String TAG_LNAME = "lname";
String patient_id, firstname, lastname, doctor_id;
String[] from;
int[] to;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mainListView = (ListView) findViewById(R.id.mainListView);
viewPatients = (Button) findViewById(R.id.bviewPatients);
viewPatients.setOnClickListener(this);
}
public void getPatients(String doctor_id){
UserFunctions userFunction = new UserFunctions();
JSONObject json = userFunction.getPatientsByDoctorId(doctor_id);
try {
if(json.getString(KEY_SUCCESS) != null){
String res = json.getString(KEY_SUCCESS);
if(Integer.parseInt(res) == 1){
//patients successfully
//JSONObject json_patients = json.getJSONObject("patients");
//getting an array of patients
jsonArray = json.getJSONArray("patients");
String[] data = new String[jsonArray.length()];
// prepare the list of all records
ArrayList<HashMap<String, String>> fillMaps = new ArrayList<HashMap<String, String>>();
//looping thru all the patients
for(int i = 0; i<jsonArray.length(); i++){
HashMap<String, String> map = new HashMap<String, String>();
JSONObject patient = jsonArray.getJSONObject(i);
map.put("elements ", jsonArray.getString(i));
fillMaps.add(map);
//storing each item into a variable
patient_id = patient.getString(TAG_ID);
firstname = patient.getString(TAG_FNAME);
lastname = patient.getString(TAG_LNAME);
from = new String[] {"firstname", "lastname", "patient_id"};
to = new int[] { R.id.firstName, R.id.lastName, R.id.id};
String[][][] array = new String[jsonArray.length()] [jsonArray.length()][jsonArray.length()];
Log.i("Patients", "First Name: " + firstname + " " + " " + lastname + " " + patient_id );
}
adapter = new SimpleAdapter(ViewPatients2.this, fillMaps, R.layout.patients_list_item, from, to );
mainListView.setAdapter(adapter);
}
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(getBaseContext(), "Error occured while fetching Patients", Toast.LENGTH_LONG).show();
}
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
gotbasket = getIntent().getExtras();
doctor_id = gotbasket.getString("doctor_id");
//call to getPatients()
getPatients(doctor_id);
}
}