嘿，我在设置列表视图时遇到问题... 该应用程序有一个导航绘图菜单，该菜单的第一个片段显示我的json数组列表...
查询工作但现在：我如何显示结果......
MyTickets.java 包de.hoell.jobcontrol;
/**
* Created by Hoell on 16.10.2014.
*/
import android.app.ListFragment;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import org.json.JSONException;
import org.json.JSONArray;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
import de.hoell.jobcontrol.query.Functions;
public class MyTickets extends ListFragment {
private static final String TAG_SUCCESS = "success";
private static final String TAG_FIRMA = "Firma";
public MyTickets(){};
ArrayList<HashMap<String, String>> TheTickets = new ArrayList<HashMap<String, String>>();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return super.onCreateView(inflater, container, savedInstanceState);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
new JSONMyTickets().execute();
//TODO:FIND OUT HOW TO SET UP A LISTVIEW :'D
}
private class JSONMyTickets extends AsyncTask<String, String, JSONObject> {
JSONArray Ticketliste = null;
@Override
protected JSONObject doInBackground(String... args) {
String user;
user = de.hoell.jobcontrol.Start.user;
Functions Function = new Functions();
JSONObject json = Function.MyTickets(user);
// check for login response
// check log cat fro response
Log.d("Create Response", json.toString());
return json;
}
@Override
protected void onPostExecute(JSONObject json) {
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
Ticketliste = json.getJSONArray("tickets");
for (int i = 0; i < Ticketliste.length(); i++) {
JSONObject c = Ticketliste.getJSONObject(i);
String Firma = c.getString("Firma");
String Ort = c.getString("Ort");
String Status = c.getString("Status");
HashMap<String, String> map = new HashMap<String, String>();
map.put("Firma", Firma);
map.put("Ort", Ort);
map.put("Status", Status);
TheTickets.add(map);
System.out.println("Abfrage" + TheTickets);
}
}
else{
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
幻灯片菜单
MainActivity.java 包de.hoell.jobcontrol;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
import java.util.ArrayList;
import de.hoell.jobcontrol.adapter.NavDrawerListAdapter;
import de.hoell.jobcontrol.model.NavDrawerItem;
public class
MainActivity extends Activity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
// nav drawer title
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems;
private NavDrawerListAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
// nav drawer icons from resources
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
navDrawerItems = new ArrayList<NavDrawerItem>();
// adding nav drawer items to array
// MyTickets
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
// Kalender
navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// NewTickets
navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
// Recycle the typed array
navMenuIcons.recycle();
mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
// setting the nav drawer list adapter
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
mDrawerList.setAdapter(adapter);
// enabling action bar app icon and behaving it as toggle button
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.title_activity_slidermenu, // nav drawer open - description for accessibility
R.string.title_activity_slidermenu // nav drawer close - description for accessibility
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
}
/**
* Slide menu item click listener
* */
private class SlideMenuClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// display view for selected nav drawer item
displayView(position);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_info:
Toast.makeText(getApplicationContext(), "Version 0.0.6", Toast.LENGTH_SHORT).show();
return true;
case R.id.action_search:
Toast.makeText(getApplicationContext(), "Searching...", Toast.LENGTH_SHORT).show();
return true;
case R.id.action_refresh:
Toast.makeText(getApplicationContext(), "Refresh...", Toast.LENGTH_SHORT).show();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/***
* Called when invalidateOptionsMenu() is triggered
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// if nav drawer is opened, hide the action items
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_search).setVisible(!drawerOpen);
menu.findItem(R.id.action_refresh).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
fragment = new MyTickets();
break;
case 1:
fragment = new Kalender();
break;
case 2:
fragment = new NewTickets();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
mDrawerToggle.onConfigurationChanged(newConfig);
}
}
我的英语不好：/
答案 0 :(得分：0)
简单列表的一些示例代码，简单的ArrayAdapter：
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer);
drawer.setDrawerShadow(R.drawable.drawer_shadow, Gravity.START);
String[] myResArray = getResources().getStringArray(R.array.nav_draw_entries);
List<String> mArrayList = Arrays.asList(myResArray);
ListView listView = (ListView) findViewById(R.id.navView);
listView.setOnItemClickListener(this);
listView.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_nav_item, mArrayList));
其中'drawer_nav_item'是字符串条目的TextView布局类型。
其中R.id.navView是主布局中的listView，包括navBar的支持类
其中R.array.nav_draw_entries是strings.xml中定义的字符串的静态数组
答案 1 :(得分：0)
这里我删除整个片段并从表单开始：
这是工作结果：））））
<强> TicketFragment.java
package de.hoell.jobcontrol;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.ListFragment;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import de.hoell.jobcontrol.query.Functions;
import de.hoell.jobcontrol.ticketlist.Tickets;
/**
* A fragment representing a list of Items.
* <p/>
* <p/>
* Activities containing this fragment MUST implement the {@link OnTicketInteractionListener}
* interface.
*/
public class TicketFragment extends ListFragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
private static final String TAG_SUCCESS = "success";
private static final String TAG_FIRMA = "Firma";
ArrayList<HashMap<String, String>> TheTickets = new ArrayList<HashMap<String, String>>();
List<Tickets> ticketsList = new ArrayList<Tickets>();
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnTicketInteractionListener mListener;
// TODO: Rename and change types of parameters
public static TicketFragment newInstance(String param1, String param2) {
TicketFragment fragment = new TicketFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
/**
* Mandatory empty constructor for the fragment manager to instantiate the
* fragment (e.g. upon screen orientation changes).
*/
public TicketFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
new JSONMyTickets().execute();
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mListener = (OnTicketInteractionListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement OnTicketInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
if (null != mListener) {
// Notify the active callbacks interface (the activity, if the
// fragment is attached to one) that an item has been selected.
}
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnTicketInteractionListener {
// TODO: Update argument type and name
public void onTicketInteraction(String id);
}
public class JSONMyTickets extends AsyncTask<String, String, JSONObject> {
JSONArray Ticketliste = null;
@Override
protected JSONObject doInBackground(String... args) {
String user;
user = de.hoell.jobcontrol.Start.user;
Functions Function = new Functions();
JSONObject json = Function.MyTickets(user);
// check for login response
// check log cat fro response
Log.d("Create Response", json.toString());
return json;
}
@Override
protected void onPostExecute(JSONObject json) {
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
Ticketliste = json.getJSONArray("tickets");
for (int i = 0; i < Ticketliste.length(); i++) {
JSONObject c = Ticketliste.getJSONObject(i);
String Firma = c.getString("Firma");
String Ort = c.getString("Ort");
String Status = c.getString("Status");
ticketsList.add(new Tickets(Firma+ ", "+ Ort + ", "+ Status));
HashMap<String, String> map = new HashMap<String, String>();
map.put("Firma", Firma);
map.put("Ort", Ort);
map.put("Status", Status);
TheTickets.add(map);
}System.out.println("Abfrage" + TheTickets);
}
else{
}
} catch (JSONException e) {
e.printStackTrace();
}
setListAdapter(new ArrayAdapter<Tickets>(getActivity(),
android.R.layout.simple_list_item_1, android.R.id.text1, ticketsList));
}
}
}
<强> Tickets.java
package de.hoell.jobcontrol.ticketlist;
/**
* Created by Hoell on 20.11.2014.
*/
public class Tickets {
private String id;
private String content;
public Tickets(String id) {
this.id = id;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
@Override
public String toString(){
return id;
}
}