JSON来的ListView随着setOnItemClickListener在android系统 [英] JSon to ListView With setOnItemClickListener In ANdroid

查看：227 发布时间：2016/3/20 23:28:24 java android json android-intent android-toast

本文介绍了JSON来的ListView随着setOnItemClickListener在android系统的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

的有些人可以帮助我，请叫我怎么展示室ID在吐司下面是code。低于code工作，但我不能够以显示吐司RoomId。的

MainActivity.java

 包com.android.listviewexample;
进口的java.util.ArrayList;
进口的java.util.HashMap;
进口的java.util.List;
进口的java.util.Map;
进口org.json.JSONArray;
进口org.json.JSONException;
进口org.json.JSONObject;
进口com.android.volley.AuthFailureError;
进口com.android.volley.Request;
进口com.android.volley.RequestQueue;
进口com.android.volley.Response;
进口com.android.volley.VolleyError;
进口com.android.volley.toolbox.StringRequest;
进口com.android.volley.toolbox.Volley;
进口android.support.v7.app.ActionBarActivity;
进口android.view.View;
进口android.view.Window;
进口android.content.Intent;
进口android.os.Bundle;
进口android.widget.ListView;
进口android.widget.AdapterView;
进口android.widget.SimpleAdapter;
进口android.widget.Toast;
进口android.widget.AdapterView.OnItemClickListener;
公共类MainActivity扩展ActionBarActivity {私人请求队列请求队列;
私有静态最终字符串URL =http://192.168.0.1/api/enter.php;
私人StringRequest请求;@覆盖
保护无效的onCreate（捆绑savedInstanceState）{
this.requestWindowFeature（Window.FEATURE_NO_TITLE）;
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_main）;请求队列= Volley.newRequestQueue（本）;
请求=新StringRequest（Request.Method.POST，网址，新Response.Listener＆LT;串GT;（）{
@覆盖
公共无效onResponse（字符串响应）{
尝试{
的JSONObject的JSONObject =新的JSONObject（响应）;
如果（jsonObject.names（）得到（0）.equals（成功））{JSONArray成功= jsonObject.getJSONArray（成功）;
的for（int i = 0; I＆LT; success.length（）;我++）{
JSONObject的更迭= success.getJSONObject（I）
的System.out.println（succes.toString（））;
}
JSONArray房= jsonObject.getJSONArray（房间）;
的for（int i = 0; I＆LT; rooms.length（）;我++）{
的JSONObject室= rooms.getJSONObject（ⅰ）;
字符串名称= room.optString（房间）;
串roomid = room.optString（roomid）;
字符串输出=名称;
roomList.add（createRoom（聊天室，输出））;ListView控件的ListView =（ListView控件）findViewById（R.id.examplelistView）;
SimpleAdapter simpleAdapter =新SimpleAdapter（MainActivity.this，roomList，android.R.layout.simple_list_item_1，新的String [] {聊天室}，新的INT [] {android.R.id.text1}）;
listView.setAdapter（simpleAdapter）;
listView.setOnItemClickListener（新OnItemClickListener（）{
@覆盖
公共无效onItemClick（适配器视图＆LT;＆GT;母公司，观景，
INT位置，长的id）{意向意图=新意图（getApplicationContext（），FstActivity.class）;
束B =新包（）;
INT itemPosition =位置;
b.putString（roomposition，位置：+ itemPosition）;
//b.putString(\"roomid，roomid.toString（））;
intent.putExtras（二）;
startActivity（意向）;
Toast.makeText（getApplicationContext（），位置：+ itemPosition，Toast.LENGTH_LONG）
。显示（）;}
}）;
}}其他{}
}赶上（JSONException E）{
e.printStackTrace（）;
}
}
}，新Response.ErrorListener（）{
@覆盖
公共无效onErrorResponse（VolleyError错误）{
}
}）{
@覆盖
保护地图＆LT;字符串，字符串＆GT; getParams（）方法抛出AuthFailureError {
HashMap的＆LT;字符串，字符串＆GT; HashMap的=新的HashMap＆LT;字符串，字符串＆GT;（）;
hashMap.put（S，e0c93d9bb49efd89f9b70225bd65f157的ToString（））;
返回的HashMap;
}
};
requestQueue.add（请求）;}
清单＆LT;地图＆LT;字符串，字符串＆GT;＆GT; roomList =新的ArrayList＆LT;地图＆LT;字符串，字符串＆GT;＆GT;（）;
私人的HashMap＆LT;字符串，字符串＆GT; createRoom（字符串名称，串号）{
HashMap的＆LT;字符串，字符串＆GT; ROOMNAME =新的HashMap＆LT;字符串，字符串＆GT;（）;
roomName.put（姓名，号码）;
返回ROOMNAME;}
}

activity_main.xml中

 ＆LT;的RelativeLayout的xmlns：机器人=http://schemas.android.com/apk/res/android
    的xmlns：工具=http://schemas.android.com/tools
    机器人：layout_width =match_parent
    机器人：layout_height =match_parent
    机器人：paddingBottom会=@扪/ activity_vertical_margin
    机器人：paddingLeft =@扪/ activity_horizontal_margin
    机器人：paddingRight =@扪/ activity_horizontal_margin
    机器人：paddingTop =@扪/ activity_vertical_margin
    工具：上下文=com.android.listviewexample.MainActivity＆GT;    ＆LT; ListView控件
        机器人：ID =@ + ID / examplelistView
        机器人：layout_width =FILL_PARENT
        机器人：layout_height =FILL_PARENT
        机器人：layout_alignParentLeft =真
        机器人：layout_alignParentRight =真正的＆GT;    ＆LT; /＆的ListView GT;＆LT; / RelativeLayout的＆GT;

192.168.0.1/enter.php

<$p$p><$c$c>{\"success\":[{\"sid\":\"e0c93d9bb49efd89f9b70225bd65f157\",\"login\":\"saeed\"}],\"rooms\":[{\"roomid\":\"room12\",\"room\":\".~=cAsiNo-RooM=~.\"},{\"roomid\":\"room24\",\"room\":\".~=MusiC-Masti=~.\"},{\"roomid\":\"room29\",\"room\":\".~"LoVeRs_RoOM"~.\"},{\"roomid\":\"room30\",\"room\":\".PunjaBi_RocK.\"},{\"roomid\":\"room31\",\"room\":\".~"FrienDs_RoOM"~.\"},{\"roomid\":\"room33\",\"room\":\".~"Party_All_NiGhT"~.\"},{\"roomid\":\"room13\",\"room\":\".~=HuNtEd-RooM=~.\"}]}

如何显示房间ID在烤面包和OnItemClickListener。

解决方案

使用列表首先添加这两个项目如下code：

  list.add（型号（名称，roomid））;

另外创建一个模型类这样的RoomModel：

 公共类RoomModel {
    公共字符串名称，编号，图片，描述;    公共字符串的getName（）{
        返回名称;
    }    公共无效setname可以（字符串名称）{
        this.name =名称;
    }    公共字符串的getId（）{
        返回ID;
    }    公共无效SETID（字符串ID）{
        this.id = ID;
    }

}

和创建这样在你的活动类模型：

 私人RoomModel模型（ID字符串，字符串名称）{
        RoomModel M =新RoomModel（）;
        m.setId（ID）;
        m.setName（名）;
        返回米;
    }

现在在OnItemClickListener电话：

  Toast.makeText（getApplicationContext（），roomlist.get（位置）.getId（））;, Toast.LENGTH_LONG）
。显示（）;

Some One Can Help Me Please Told Me How To Show Room Id In Toast Below Is The Code. Below Code Working But I am Not Able To Show RoomId in Toast.

MainActivity.java

package com.android.listviewexample;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.Window;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.AdapterView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class MainActivity extends ActionBarActivity {

private RequestQueue requestQueue;
private static final String URL = "http://192.168.0.1/api/enter.php";
private StringRequest request;

@Override
protected void onCreate(Bundle savedInstanceState) {
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

requestQueue = Volley.newRequestQueue(this);
request = new StringRequest(Request.Method.POST, URL, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
if(jsonObject.names().get(0).equals("success")){

JSONArray success = jsonObject.getJSONArray("success");
for (int i = 0; i < success.length(); i++) {
JSONObject succes = success.getJSONObject(i);
System.out.println(succes.toString());
}     
JSONArray rooms = jsonObject.getJSONArray("rooms");
for (int i = 0; i < rooms.length(); i++) {
JSONObject room = rooms.getJSONObject(i);
String name = room.optString("room");
String roomid = room.optString("roomid");
String outPut = name;
roomList.add(createRoom("chatroom", outPut));        

ListView listView = (ListView) findViewById(R.id.examplelistView);
SimpleAdapter simpleAdapter = new SimpleAdapter(MainActivity.this, roomList, android.R.layout.simple_list_item_1, new String[] {"chatroom"}, new int[] {android.R.id.text1});
listView.setAdapter(simpleAdapter);
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {

Intent intent = new Intent(getApplicationContext(), FstActivity.class);
Bundle b = new Bundle();
int itemPosition     = position;
b.putString("roomposition", "Position :"+itemPosition);
//b.putString("roomid", roomid.toString());
intent.putExtras(b);
startActivity(intent);
Toast.makeText(getApplicationContext(),"Position :"+itemPosition, Toast.LENGTH_LONG)
.show();

}
}); 
}        

}else {

}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
}){
@Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String,String> hashMap = new HashMap<String, String>();
hashMap.put("s","e0c93d9bb49efd89f9b70225bd65f157".toString());
return hashMap;
}
};
requestQueue.add(request);      

}
List<Map<String,String>> roomList = new ArrayList<Map<String,String>>();
private HashMap<String, String>createRoom(String name,String number){
HashMap<String, String> roomName = new HashMap<String, String>();
roomName.put(name, number);
return roomName;}
}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.android.listviewexample.MainActivity" >

    <ListView
        android:id="@+id/examplelistView"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true" >

    </ListView>

</RelativeLayout>

192.168.0.1/enter.php

{"success":[{"sid":"e0c93d9bb49efd89f9b70225bd65f157","login":"saeed"}],"rooms":[{"roomid":"room12","room":".~=cAsiNo-RooM=~."},{"roomid":"room24","room":".~=MusiC-Masti=~."},{"roomid":"room29","room":".~&quot;LoVeRs_RoOM&quot;~."},{"roomid":"room30","room":".PunjaBi_RocK."},{"roomid":"room31","room":".~&quot;FrienDs_RoOM&quot;~."},{"roomid":"room33","room":".~&quot;Party_All_NiGhT&quot;~."},{"roomid":"room13","room":".~=HuNtEd-RooM=~."}]}

How to Show Room Id In Toast And OnItemClickListener.

解决方案

first of all add both items in list using following code:

list.add(model(name, roomid));

Also create a model class for RoomModel like this:

public class RoomModel {
    public  String name, id,  image, description;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

}

and create a model in your activity class like this:

private RoomModel model(String id, String name) {
        RoomModel m= new RoomModel();
        m.setId(id);
        m.setName(name);
        return m;
    }

Now in OnItemClickListener call:

Toast.makeText(getApplicationContext(),roomlist.get(position).getId());, Toast.LENGTH_LONG)
.show();

这篇关于JSON来的ListView随着setOnItemClickListener在android系统的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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JSON来的ListView随着setOnItemClickListener在android系统 [英] JSon to ListView With setOnItemClickListener In ANdroid

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