Question

你好我在我的应用程序中对Android很新我有一个ListFragment活动，其中我正在获得数据完美的地方我现在有用户列表我想要点击任何用户后我需要显示他们的个人资料

public class HomeFragment扩展了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扩展了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();
    }

Answer 1

Intent intent = new Intent(getBaseContext(), NewActivity.class);
intent.putExtra("KEY", Value);
startActivity(intent)

Answer 2

尝试覆盖片段中的onListItemClick：

@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);
}

而不是手动setOnItemClickListener到listview所以不需要这个代码：

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);
    }
});

注意：当您使用ListFragment时，无需手动查找Listview并设置项目单击以及setAdapter，直接获取所有方法，如setAdapter（）和onListItemClick。

Answer 3

尝试使用以下代码：

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);
            }
        });

//在ProfileEdit类

中获取如下数据

String matchId=this.getIntent().getStringExtra(""match_detail_id"");
if(matchId.trim().length()>0){
    USER_URL="http://gujjumatch.com/webservice/matchingdetails?version=apps&match_detail_id="+user_match_id;
}else{
    Toast.makeText(ProfileEdit.this,"match id blank",Toast.LENGTH_LONG).show();

}

如何将一个JSON的ID传递给下一个Activity？

3 个答案: