本文介绍了如何传递一个JSON的ID到下一个活动？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
您好我是新的我的应用程序到Android我在这我完全获取数据在那里我有用户列表现在我想，点击任何用户后，我需要展示自己的Profile中有一个ListFragment活动
公共类HomeFragment扩展ListFragment {
// CustomAdapter适配器;
//私有列表＆LT; RowItem＆GT; rowItems;私人ProgressDialog pDialog;
// JSON解析器类
JSONParser jsonParser =新JSONParser（）;JSONArray匹配= NULL;ArrayList的＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;一个列表;
私人静态字符串MATCH_URL = NULL;
私有静态最后弦乐TAG_MATCH =匹配;
私有静态最后弦乐TAG_MATCH_ID =match_detail_id;
私有静态最后弦乐TAG_NAME =名;
私有静态最后弦乐TAG_PROFILE =PROFILE_ID;
私有静态最后弦乐TAG_IMAGE =形象;
私有静态最后弦乐TAG_CAST =投;
私有静态最后弦乐TAG_AGE =年龄;
私有静态最后弦乐TAG_LOCATION =地利;私人的ListView列表视图;串user_match_id;公共HomeFragment（）{}@覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，
捆绑savedInstanceState）{ 。字符串strText的= getArguments（）的getString（user_login_id）;
MATCH_URL =http://abcd.com/webservice/matching?version=apps&user_login_id=\"+strtext;
查看rootView = inflater.inflate（R.layout.fragment_home，集装箱，FALSE）;
ALIST =新的ArrayList＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;（）; // rowItems =新的ArrayList＆LT; RowItem＆GT;（）; 列表视图=（ListView控件）rootView.findViewById（android.R.id.list）; 新LoadAlbums（）执行（）;
返回rootView;
}类LoadAlbums扩展的AsyncTask＆LT;字符串，字符串的ArrayList＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;＆GT; { / **
*启动后台线程显示进度对话框之前
* * /
@覆盖
在preExecute保护无效（）{
super.on preExecute（）;
pDialog =新ProgressDialog（getActivity（））;
pDialog.setMessage（正在加载...）;
pDialog.setIndeterminate（假）;
pDialog.setCancelable（假）;
pDialog.show（）;
}
保护的ArrayList＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT; doInBackground（字符串参数... args）{
SH的ServiceHandler =新的ServiceHandler（）; //制作到URL的请求和响应得到
字符串jsonStr = sh.makeServiceCall（MATCH_URL，ServiceHandler.GET）; Log.d（回应：，＆gt;中+ jsonStr）; ArrayList的＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;的ListData =新的ArrayList＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;（）; 如果（jsonStr！= NULL）{
尝试{
JSONObject的jsonObj =新的JSONObject（jsonStr）; //获取JSON数组节点
匹配= jsonObj.getJSONArray（TAG_MATCH）; //通过所有联系人循环
的for（int i = 0; I＆LT; matching.length（）;我++）{
JSONObject的C = matching.getJSONObject（I） //创建新的HashMap
HashMap的＆LT;字符串，字符串＆GT;地图=新的HashMap＆LT;字符串，字符串＆GT;（）; //将每个子节点的HashMap键=＆GT;值
map.put（TAG_MATCH_ID，c.getString（TAG_MATCH_ID））;
map.put（TAG_NAME，c.getString（TAG_NAME））;
map.put（TAG_PROFILE，c.getString（TAG_PROFILE））;
map.put（TAG_IMAGE，c.getString（TAG_IMAGE））;
map.put（TAG_CAST，c.getString（TAG_CAST））;
map.put（TAG_AGE，c.getString（TAG_AGE）+年）;
map.put（TAG_LOCATION，c.getString（TAG_LOCATION））; //添加HashList到ArrayList的
listData.add（地图）;
}
}赶上（JSONException E）{
e.printStackTrace（）;
}
}其他{
Log.e（的ServiceHandler，无法从URL得到任何数据）;
} 返回的ListData;
}
保护无效onPostExecute（ArrayList的＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;的结果）{ super.onPostExecute（结果）;
//让所有专辑后，关闭该对话框
如果（pDialog.isShowing（））
pDialog.dismiss（）;
//从后台线程更新界面 / **
*更新解析JSON数据到ListView控件
* * / listview.setOnItemClickListener（新OnItemClickListener（）{
@覆盖
公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，ARG1观，诠释ARG2，
长ARG3）{
// TODO自动生成方法存根
意向意图=新意图（getActivity（），ProfileEdit.class）;
intent.putExtra（match_detail_id，ARG2）;
startActivity（意向）;
}
}）;
如果（ALIST == NULL）{
ALIST =新的ArrayList＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;（）;
}
aList.addAll（结果）;
CustomAdapter适配器=新CustomAdapter（getActivity（），ALIST）;
setListAdapter（适配器）; }}
公共类ProfilePage延伸活动{
私人ProgressDialog pDialog;AQuery androidAQuery =新AQuery（本）;//私有静态最后弦乐TAG_MATCH_ID =match_detail_id;私有静态最后弦乐USER_NAME =名;
私有静态最后弦乐USER_AGE =年龄;
私有静态最后弦乐USER_LOCATION =地利;
私有静态最后弦乐USER_MOTHER_TONGE =mother_tounge;
私有静态最后弦乐USER_OCCU =占领;
私有静态最后弦乐USER_INCOM =收入;
私有静态最后弦乐USER_HEIGHT =高度;
私有静态最后弦乐USER_MARRAGE =婚姻状况;
私有静态最后弦乐USER_RELIGION =宗教;
私有静态最后弦乐USER_GOTRA =gotra;
私有静态最后弦乐USER_MANGLIK =manglik;
私有静态最后弦乐USER_RASHI =拉什;
私有静态最后弦乐USER_EDUCATION =教育;
私有静态最后弦乐USER_EAT =吃;
私有静态最后弦乐USER_DRINK =喝;
私有静态最后弦乐USER_SMOKE =烟;
私有静态最后弦乐USER_ABOUT =about_me;
私有静态最后弦乐USER_PIC =profile_pic;私人静态字符串USER_URL =;串user_match_id;私人ImageView的覆盖;
私人ImageView的是;
私人ImageView的无;
私人ImageView的SENDMSG;@覆盖
保护无效的onCreate（捆绑savedInstanceState）{
// TODO自动生成方法存根
super.onCreate（savedInstanceState）;
的setContentView（R.layout.profile_page）; 串matchId = this.getIntent（）getStringExtra（match_detail_id）;
如果（matchId.trim（）长度（）大于0）{
USER_URL=\"http://abcds.com/webservice/matchingdetails?version=apps&match_detail_id=\"+user_match_id;
}其他{
Toast.makeText（ProfilePage.this，匹配ID空白，Toast.LENGTH_LONG）.show（）; } 。StrictMode.ThreadPolicy政策=新StrictMode.ThreadPolicy.Builder（）permitAll（）建（）;
StrictMode.setThreadPolicy（政策）;
SH的ServiceHandler =新的ServiceHandler（）; //制作到URL的请求和响应得到
字符串jsonStr = sh.makeServiceCall（USER_URL，ServiceHandler.GET）; Log.d（回应：，＆gt;中+ jsonStr）; 尝试{
JSONObject的jsonObj =新的JSONObject（jsonStr）; 字符串USER_NAME = jsonObj.getString（USER_NAME）;
字符串user_age = jsonObj.getString（USER_AGE）;
字符串USER_LOCATION = jsonObj.getString（USER_LOCATION）;
字符串user_mothertong = jsonObj.getString（USER_MOTHER_TONGE）;
字符串= USER_OCCUPATION jsonObj.getString（USER_OCCU）;
字符串user_income = jsonObj.getString（USER_INCOM）;
字符串user_height = jsonObj.getString（USER_HEIGHT）;
字符串user_marg = jsonObj.getString（USER_MARRAGE）;
字符串user_religion = jsonObj.getString（USER_RELIGION）;
字符串user_gotra = jsonObj.getString（USER_GOTRA）;
字符串user_manglik = jsonObj.getString（USER_MANGLIK）;
字符串user_rashi = jsonObj.getString（USER_RASHI）;
字符串user_education = jsonObj.getString（USER_EDUCATION）;
字符串user_eat = jsonObj.getString（USER_EAT）;
字符串user_drink = jsonObj.getString（USER_DRINK）;
字符串user_smoke = jsonObj.getString（USER_SMOKE）;
字符串user_about = jsonObj.getString（USER_ABOUT）;
字符串user_pro = jsonObj.getString（USER_PIC）; 最终的TextView的uname =（的TextView）findViewById（R.id.namedetail）;
最终的TextView fdetail =（的TextView）findViewById（R.id.firstdetail）;
最终的TextView sdetail =（的TextView）findViewById（R.id.seconddetail）;
最终的TextView tdetail =（的TextView）findViewById（R.id.thirddetail）;
最终的TextView ocdetail =（的TextView）findViewById（R.id.txtoccupationdetail）;
最终的TextView incomedetail =（的TextView）findViewById（R.id.incomedetaile）;
最终的TextView uheight =（的TextView）findViewById（R.id.txtheightprofile）;
最终的TextView umrg =（的TextView）findViewById（R.id.txtmrgprofile）;
最终的TextView ureligion =（的TextView）findViewById（R.id.prohindu）;
最终的TextView ugotra =（的TextView）findViewById（R.id.gothraa）;
最终的TextView umanglik =（的TextView）findViewById（R.id.usermanglik）;
最终的TextView urashi =（的TextView）findViewById（R.id.rashi）;
最终的TextView udegree =（的TextView）findViewById（R.id.userdegree）;
最终的TextView ueat =（的TextView）findViewById（R.id.txteatprofile）;
最终的TextView udrink =（的TextView）findViewById（R.id.txtdrinkprofile）;
最终的TextView usmoke =（的TextView）findViewById（R.id.txtsmokeprofile）;
最终的TextView uabout =（的TextView）findViewById（R.id.txtabouther）;
最后ImageView的ucover =（ImageView的）findViewById（R.id.coverimage）; uname.setText（USER_NAME）;
fdetail.setText（user_age +年）;
sdetail.setText（USER_LOCATION）;
tdetail.setText（user_mothertong）;
ocdetail.setText（USER_OCCUPATION）;
incomedetail.setText（user_income）;
uheight.setText（user_height）;
umrg.setText（user_marg）;
ureligion.setText（user_religion）;
ugotra.setText（user_gotra）;
umanglik.setText（user_manglik）;
urashi.setText（user_rashi）;
udegree.setText（user_education）;
ueat.setText（user_eat）;
udrink.setText（user_drink）;
usmoke.setText（user_smoke）;
uabout.setText（user_about）;
androidAQuery.id（ucover）在图像配（user_pro，真实，真实）;
}赶上（JSONException E）{
e.printStackTrace（）;
}
解决方案
尝试在片段覆盖onListItemClick：
@覆盖
公共无效onListItemClick（ListView中升，视图V，INT位置，长的id）{
意向意图=新意图（getActivity（），ProfilePage.class）;
intent.putExtra（match_detail_id，aList.get（位置）获得（TAG_MATCH_ID））;
startActivity（意向）;
}
代替人工setOnItemClickListener到的ListView所以不需要这个code：
=列表视图（ListView控件）rootView.findViewById（android.R.id.list）;listview.setOnItemClickListener（新OnItemClickListener（）{
@覆盖
公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，ARG1观，诠释ARG2，长ARG3）{
意向意图=新意图（getActivity（）getApplicationContext（），ProfileEdit.class。）;
intent.putExtra（位置，ARG2）;
startActivity（意向）;
}
}）;
注意：当你手动使用ListFragment无需找ListView和设置项目点击以及setAdapter，直接得到这样setAdapter（）和onListItemClick准备好所有的方法
hello I am new to android in my app i have one ListFragment activity in which i am getting data perfectly where i have list of users now i want that after click on any user i need to show their profile
public class HomeFragment extends ListFragment {
//CustomAdapter adapter;
//private List<RowItem> rowItems;
private ProgressDialog pDialog;
//JSON parser class
JSONParser jsonParser = new JSONParser();
JSONArray matching=null;
ArrayList<HashMap<String,String>> aList;
private static String MATCH_URL = null;
private static final String TAG_MATCH="matching";
private static final String TAG_MATCH_ID="match_detail_id";
private static final String TAG_NAME="name";
private static final String TAG_PROFILE="profile_id";
private static final String TAG_IMAGE="image";
private static final String TAG_CAST="cast";
private static final String TAG_AGE="age";
private static final String TAG_LOCATION="location";
private ListView listview;
String user_match_id;
public HomeFragment(){}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String strtext = getArguments().getString("user_login_id");
MATCH_URL = "http://abcd.com/webservice/matching?version=apps&user_login_id="+strtext;
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
aList = new ArrayList<HashMap<String,String>>();
// rowItems = new ArrayList<RowItem>();
listview=(ListView)rootView.findViewById(android.R.id.list);
new LoadAlbums().execute();
return rootView;
}
class LoadAlbums extends AsyncTask<String, String, ArrayList<HashMap<String,String>>> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Loading...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
protected ArrayList<HashMap<String,String>> doInBackground(String... args) {
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(MATCH_URL, ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
ArrayList<HashMap<String,String>> listData = new ArrayList<HashMap<String, String>>();
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
matching = jsonObj.getJSONArray(TAG_MATCH);
// looping through All Contacts
for (int i = 0; i < matching.length(); i++) {
JSONObject c = matching.getJSONObject(i);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_MATCH_ID, c.getString(TAG_MATCH_ID));
map.put(TAG_NAME,c.getString(TAG_NAME));
map.put(TAG_PROFILE, c.getString(TAG_PROFILE));
map.put(TAG_IMAGE, c.getString(TAG_IMAGE));
map.put(TAG_CAST, c.getString(TAG_CAST));
map.put(TAG_AGE, c.getString(TAG_AGE)+" years");
map.put(TAG_LOCATION, c.getString(TAG_LOCATION));
// adding HashList to ArrayList
listData.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return listData;
}
protected void onPostExecute( ArrayList<HashMap<String,String>> result) {
super.onPostExecute(result);
// dismiss the dialog after getting all albums
if (pDialog.isShowing())
pDialog.dismiss();
// updating UI from Background Thread
/**
* Updating parsed JSON data into ListView
* */
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
Intent intent=new Intent(getActivity(),ProfileEdit.class);
intent.putExtra("match_detail_id", arg2);
startActivity(intent);
}
});
if(aList==null){
aList = new ArrayList<HashMap<String, String>>();
}
aList.addAll(result);
CustomAdapter adapter = new CustomAdapter(getActivity(),aList);
setListAdapter(adapter);
}
}
public class ProfilePage extends Activity{
private ProgressDialog pDialog;
AQuery androidAQuery=new AQuery(this);
//private static final String TAG_MATCH_ID="match_detail_id";
private static final String USER_NAME="name";
private static final String USER_AGE="age";
private static final String USER_LOCATION="location";
private static final String USER_MOTHER_TONGE="mother_tounge";
private static final String USER_OCCU="occupation";
private static final String USER_INCOM="income";
private static final String USER_HEIGHT="height";
private static final String USER_MARRAGE="marital_status";
private static final String USER_RELIGION="religion";
private static final String USER_GOTRA="gotra";
private static final String USER_MANGLIK="manglik";
private static final String USER_RASHI="rashi";
private static final String USER_EDUCATION="education";
private static final String USER_EAT="eating";
private static final String USER_DRINK="drink";
private static final String USER_SMOKE="smoke";
private static final String USER_ABOUT="about_me";
private static final String USER_PIC="profile_pic";
private static String USER_URL="";
String user_match_id;
private ImageView cover;
private ImageView yes;
private ImageView no;
private ImageView sendmsg;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.profile_page);
String matchId=this.getIntent().getStringExtra("match_detail_id");
if(matchId.trim().length()>0){
USER_URL="http://abcds.com/webservice/matchingdetails?version=apps&match_detail_id="+user_match_id;
}else{
Toast.makeText(ProfilePage.this,"match id blank",Toast.LENGTH_LONG).show();
}
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(USER_URL, ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
try {
JSONObject jsonObj = new JSONObject(jsonStr);
String user_name = jsonObj.getString(USER_NAME);
String user_age = jsonObj.getString(USER_AGE);
String user_location = jsonObj.getString(USER_LOCATION);
String user_mothertong = jsonObj.getString(USER_MOTHER_TONGE);
String user_occupation = jsonObj.getString(USER_OCCU);
String user_income = jsonObj.getString(USER_INCOM);
String user_height = jsonObj.getString(USER_HEIGHT);
String user_marg = jsonObj.getString(USER_MARRAGE);
String user_religion = jsonObj.getString(USER_RELIGION);
String user_gotra = jsonObj.getString(USER_GOTRA);
String user_manglik = jsonObj.getString(USER_MANGLIK);
String user_rashi = jsonObj.getString(USER_RASHI);
String user_education = jsonObj.getString(USER_EDUCATION);
String user_eat = jsonObj.getString(USER_EAT);
String user_drink = jsonObj.getString(USER_DRINK);
String user_smoke = jsonObj.getString(USER_SMOKE);
String user_about = jsonObj.getString(USER_ABOUT);
String user_pro = jsonObj.getString(USER_PIC);
final TextView uname = (TextView)findViewById(R.id.namedetail);
final TextView fdetail = (TextView)findViewById(R.id.firstdetail);
final TextView sdetail = (TextView)findViewById(R.id.seconddetail);
final TextView tdetail = (TextView)findViewById(R.id.thirddetail);
final TextView ocdetail=(TextView)findViewById(R.id.txtoccupationdetail);
final TextView incomedetail = (TextView)findViewById(R.id.incomedetaile);
final TextView uheight = (TextView)findViewById(R.id.txtheightprofile);
final TextView umrg = (TextView)findViewById(R.id.txtmrgprofile);
final TextView ureligion = (TextView)findViewById(R.id.prohindu);
final TextView ugotra = (TextView)findViewById(R.id.gothraa);
final TextView umanglik = (TextView)findViewById(R.id.usermanglik);
final TextView urashi = (TextView)findViewById(R.id.rashi);
final TextView udegree = (TextView)findViewById(R.id.userdegree);
final TextView ueat = (TextView)findViewById(R.id.txteatprofile);
final TextView udrink = (TextView)findViewById(R.id.txtdrinkprofile);
final TextView usmoke = (TextView)findViewById(R.id.txtsmokeprofile);
final TextView uabout = (TextView)findViewById(R.id.txtabouther);
final ImageView ucover = (ImageView)findViewById(R.id.coverimage);
uname.setText(user_name);
fdetail.setText(user_age+" years");
sdetail.setText(user_location);
tdetail.setText(user_mothertong);
ocdetail.setText(user_occupation);
incomedetail.setText(user_income);
uheight.setText(user_height);
umrg.setText(user_marg);
ureligion.setText(user_religion);
ugotra.setText(user_gotra);
umanglik.setText(user_manglik);
urashi.setText(user_rashi);
udegree.setText(user_education);
ueat.setText(user_eat);
udrink.setText(user_drink);
usmoke.setText(user_smoke);
uabout.setText(user_about);
androidAQuery.id(ucover).image(user_pro, true, true);
} catch (JSONException e) {
e.printStackTrace();
}
解决方案
Try to override onListItemClick in fragment :
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
Intent intent = new Intent(getActivity(), ProfilePage.class);
intent.putExtra("match_detail_id", aList.get(position).get(TAG_MATCH_ID));
startActivity(intent);
}
Instead of manual setOnItemClickListener to listview so no required this code :
listview=(ListView)rootView.findViewById(android.R.id.list);
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
Intent intent=new Intent(getActivity().getApplicationContext(),ProfileEdit.class);
intent.putExtra("position", arg2);
startActivity(intent);
}
});
Note : when you use ListFragment no need to find Listview and set item click as well as setAdapter manually,directly get all method ready like setAdapter() and onListItemClick.
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