發送被點擊到另一個活動的位置的JSON數據

Question

我的活動中有一個RecyclerView，我從服務器的JSON數據中填充它。但是我想將點擊位置的數據發送到另一個活動，然後我可以編輯它們並將它們發送回服務器。但是，當我將數據發送到另一個活動的所有JSON數組被髮送到其他活動和未來活動的幾個實例是created.Here是我的活動包含RecyclerView：

public class ActivityAllUsers extends AppCompatActivity { 

List<GetDataAdapter> GetDataAdapter1; 

RecyclerView recyclerView; 

RecyclerView.LayoutManager recyclerViewlayoutManager; 

RecyclerView.Adapter recyclerViewadapter; 

ProgressBar progressBar; 

String GET_JSON_DATA_HTTP_URL = "http://shayea.tk/sof/get_allusers.php"; 
String JSON_USERNAME = "usr_name"; 
String JSON_EMAIL = "usr_email"; 
String JSON_PHONE = "usr_phone"; 
String JSON_ORG = "org_name"; 
String JSON_STATUS ="usr_status"; 
String JSON_USRTYPE ="prv_name"; 

JsonArrayRequest jsonArrayRequest ; 

RequestQueue requestQueue ; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_all_users); 
    GetDataAdapter1 = new ArrayList<>(); 
    recyclerView = (RecyclerView) findViewById(R.id.recyclerView1); 
    progressBar = (ProgressBar) findViewById(R.id.progressBar1); 
    recyclerView.setHasFixedSize(true); 
    recyclerViewlayoutManager = new LinearLayoutManager(this); 
    recyclerView.setLayoutManager(recyclerViewlayoutManager); 
    JSON_DATA_WEB_CALL(); 
    progressBar.setVisibility(View.VISIBLE); 




} 

public void JSON_DATA_WEB_CALL(){ 

    jsonArrayRequest = new JsonArrayRequest(GET_JSON_DATA_HTTP_URL, 

      new Response.Listener<JSONArray>() { 
       @Override 
       public void onResponse(JSONArray response) { 

        progressBar.setVisibility(View.GONE); 

        JSON_PARSE_DATA_AFTER_WEBCALL(response); 
       } 
      }, 
      new Response.ErrorListener() { 
       @Override 
       public void onErrorResponse(VolleyError error) { 

       } 
      }); 

    requestQueue = Volley.newRequestQueue(this); 

    requestQueue.add(jsonArrayRequest); 
} 

public void JSON_PARSE_DATA_AFTER_WEBCALL(final JSONArray array){ 

    for(int i = 0; i<array.length(); i++) { 

     final GetDataAdapter GetDataAdapter2 = new GetDataAdapter(); 

     JSONObject json = null; 
     try { 
      json = array.getJSONObject(i); 

      GetDataAdapter2.setusername(json.getString(JSON_USERNAME)); 

      GetDataAdapter2.setEmail(json.getString(JSON_EMAIL)); 

      GetDataAdapter2.setPhone_number(json.getString(JSON_PHONE)); 

      GetDataAdapter2.setPrivilege(json.getString(JSON_USRTYPE)); 

      GetDataAdapter2.setOrganization(json.getString(JSON_ORG)); 

      GetDataAdapter2.setStatus(json.getString(JSON_STATUS)); 

      Log.e("JSON ME :" , json.toString()); 

      final String username = (json.getString(JSON_USERNAME)); 
      final String email = (json.getString(JSON_USERNAME)); 
      final String phone = (json.getString(JSON_USERNAME)); 
      final String usertype = (json.getString(JSON_USERNAME)); 

      recyclerView.addOnItemTouchListener(
        new RecyclerTouchListener(getApplicationContext(), recyclerView, 
          new RecyclerTouchListener.OnTouchActionListener() { 
           @Override 
           public void onClick(View view, int position) { 

            Intent intent = new Intent(ActivityAllUsers.this,RegisterNewCompany.class); 
            intent.putExtra("username" , username); 
            intent.putExtra("email" , email); 
            intent.putExtra("phone" , phone); 
            intent.putExtra("usertype" , usertype); 
            startActivity(intent); 

           } 
           @Override 
           public void onRightSwipe(View view, int position) { 
           } 
           @Override 
           public void onLeftSwipe(View view, int position) { 
           } 
          })); 

     } catch (JSONException e) { 

      e.printStackTrace(); 
     } 
     GetDataAdapter1.add(GetDataAdapter2); 
    } 

    recyclerViewadapter = new RecyclerViewAdapter(GetDataAdapter1, this); 

    recyclerView.setAdapter(recyclerViewadapter); 
} 
} 

，這裏是我的RecyclerView適配器：

public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> { 

Context context; 

List<GetDataAdapter> getDataAdapter; 

public RecyclerViewAdapter(List<GetDataAdapter> getDataAdapter, Context context){ 

    super(); 

    this.getDataAdapter = getDataAdapter; 
    this.context = context; 
} 

@Override 
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 

    View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.recyclerview_items, parent, false); 

    ViewHolder viewHolder = new ViewHolder(v); 

    return viewHolder; 
} 

@Override 
public void onBindViewHolder(ViewHolder holder, int position) { 

    GetDataAdapter getDataAdapter1 = getDataAdapter.get(position); 

    holder.UsernameTV.setText(getDataAdapter1.getusername()); 

    holder.EmailTV.setText(String.valueOf(getDataAdapter1.getEmail())); 

    holder.PhoneNumberTextView.setText(getDataAdapter1.getPhone_number()); 

    holder.PrivilegeTV.setText(getDataAdapter1.getPrivilege()); 

    holder.OrganizationTV.setText(getDataAdapter1.getOrganization()); 

    holder.statusTV.setText(getDataAdapter1.getStatus()); 

} 

@Override 
public int getItemCount() { 

    return getDataAdapter.size(); 
} 

class ViewHolder extends RecyclerView.ViewHolder{ 

    public TextView UsernameTV; 
    public TextView EmailTV; 
    public TextView PhoneNumberTextView; 
    public TextView PrivilegeTV; 
    public TextView OrganizationTV; 
    public TextView statusTV; 


    public ViewHolder(View itemView) { 

     super(itemView); 

     UsernameTV = (TextView) itemView.findViewById(R.id.textView2) ; 
     EmailTV = (TextView) itemView.findViewById(R.id.textView4) ; 
     PhoneNumberTextView = (TextView) itemView.findViewById(R.id.textView6) ; 
     PrivilegeTV = (TextView) itemView.findViewById(R.id.textView8) ; 
     OrganizationTV = (TextView) itemView.findViewById(R.id.textView10); 
     statusTV = (TextView) itemView.findViewById(R.id.textView12); 
    } 
} 
} 

，這裏是我的GetDataAdapter類，它包含getter和setter方法：

public class GetDataAdapter { 

String username; 
String phone_number; 
String privilege; 
String Email; 
String organization; 
String status; 

public String getusername() { 

    return username; 
} 

public void setusername(String username1) { 

    this.username = username1; 
} 
public String getEmail() { 

    return Email; 
} 

public void setEmail(String email1) { 

    this.Email = email1; 
} 

public String getPrivilege() { 

    return privilege; 
} 

public void setPrivilege(String privilege1) { 

    this.privilege = privilege1; 
} 

public String getOrganization() { 

    return organization; 
} 

public void setOrganization(String organization1) { 

    this.organization = organization1; 
} 

public String getStatus() { 

    return status; 
} 

public void setStatus(String status1) { 

    this.status = status1; 
} 

public String getPhone_number() { 

    return phone_number; 
} 

public void setPhone_number(String phone_number1) { 

    this.phone_number = phone_number1; 
} 

} 

我已經檢查了大部分問題與這種但是它們的實施是不同的。 任何幫助，將不勝感激

Answer 1

我可以看到，你爲for循環的每個迭代添加一個觸摸監聽器。 recyclerView.addOnItemTouchListener

您應該確保recyclerView.addOnItemTouchListener只執行一次。使用int position參數，在onClick方法中獲取被觸摸/點擊的項目。

例子： clickedItem = array.getJSONObject(position);

正在發生的事情是這樣的： 如果你的數組長度爲10，你加10個itemTouchListeners到您的回收視圖。這意味着在觸摸時，所有10個偵聽器都按照您添加的順序被調用。所以解釋了several instances of next activity。另外每個監聽者都用不同的項目調用它 - 因此它看起來都是通過了json。啓動活動時，您可以通過一些標誌來確保一次只有單個實例存在。稍等一會，read up on all FLAGS