我正在解析多个 JSON 以填充卡片 View 。问题是它们中的 4 个工作得很好，但一个似乎只是覆盖了所有其他的而不是追加。
从屏幕截图中查看医生数据。它重复了最后添加的医生(Sylvester)。我做了一个 toast ，看看模型中的数据是否正确，正如你所看到的，它正确地 toast 了所有不同的医生。可能是什么问题。 这是绑定(bind)查看器类:
public void onBindViewHolder(final AppointmentsAdapter.myViewHolder myViewHolder, final int position) {
appointmentsModel = new AppointmentsModel();
appointmentsModel = appointmentsModelList.get(position);
myViewHolder.appointments_date_TV.setText(appointmentsModel.getDate());
myViewHolder.appointments_subject.setText(appointmentsModel.getSubject());
myViewHolder.appointments_time.setText(appointmentsModel.getTime());
myViewHolder.appointments_hospital.setText(appointmentsModel.getHospital());
myViewHolder.appointments_doctor.setText(appointmentsModel.getDoctor());
myViewHolder.appointments_county.setText(appointmentsModel.getCounty());
myViewHolder.appointments_specialization.setText(appointmentsModel.getSpecialization());
myViewHolder.denied.setText(appointmentsModel.getStatus());
myViewHolder.pending.setText(appointmentsModel.getStatus());
myViewHolder.approved.setText(appointmentsModel.getStatus());
myViewHolder.overflow.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//Toast.makeText(view.getContext(), "Item is clicked", Toast.LENGTH_SHORT).show();
// showPopupMenu(myViewHolder.overflow);
//creating a popup menu
PopupMenu popup = new PopupMenu(ctx, myViewHolder.overflow);
//inflating menu from xml resource
popup.inflate(R.menu.card_view_options);
//adding click listener
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_chat:
//get doctor id from sqlite
HashMap<String, String> user = db.getUserDetails();
String loggedInPatient= user.get("id");
//get specifics patient id from the model
String clickedDoctor = appointmentsModel.getDaktari();
//pass them to the chats activy to initiate chats for this particular patient
//with this particular doctor
Intent intent = new Intent(ctx, ChatsActivity.class);
intent.putExtra("doctor", clickedDoctor);
intent.putExtra("patient",loggedInPatient);
ctx.startActivity(intent);
break;
case R.id.action_delete:
String doctorPhone = appointmentsModel.getPhoneNumber();
Intent intent2 = new Intent(ctx, MakePhoneCall.class);
intent2.putExtra("phone", doctorPhone);
break;
}
return false;
}
});
//displaying the popup
popup.show();
}
});
String a = appointmentsModel.getStatus().toString();
if (a.contains("approved")) {
myViewHolder.approved.setVisibility(View.VISIBLE);
myViewHolder.pending.setVisibility(View.INVISIBLE);
myViewHolder.denied.setVisibility(View.INVISIBLE);
} else if (a.contains("declined")) {
myViewHolder.denied.setVisibility(View.VISIBLE);
myViewHolder.pending.setVisibility(View.INVISIBLE);
myViewHolder.approved.setVisibility(View.INVISIBLE);
} else if (a.contains("pending")) {
myViewHolder.pending.setVisibility(View.VISIBLE);
myViewHolder.approved.setVisibility(View.INVISIBLE);
myViewHolder.denied.setVisibility(View.INVISIBLE);
}
int len = appointmentsModel.getDate().length();
String to_cut = appointmentsModel.getDate().substring(0, 10);
myViewHolder.appointments_date_TV.setText(to_cut);
}
这是获取 JSON 并解析每个 JSON 的类:最后一个 for 循环是有问题的 JSON。
private void postLoginDetails(final String email, final String password) {
// Tag used to cancel the requestl
String tag_string_req = "req_register";
StringRequest strReq = new StringRequest(Request.Method.POST,
Configs.URL_LOGIN +Configs.LIST_APPOINTMENTS, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
appointmentsList = new ArrayList<>();
JSONObject jsonObject = new JSONObject(response);
JSONArray jsonArray = jsonObject.getJSONArray("myAppointments");
JSONArray jsonArray2 = jsonObject.getJSONArray("myDoctor");
JSONArray jsonArray3 = jsonObject.getJSONArray("myCounty");
JSONArray jsonArray4 = jsonObject.getJSONArray("mySpecialization");
JSONArray jsonArray5 = jsonObject.getJSONArray("myHospital");
if(jsonArray.length()<1 || jsonArray2.length()<1 ||jsonArray3.length()<1 ||jsonArray4.length()<1 ||jsonArray.length()<1) {
appointmentsList.clear();
no_data.setVisibility(View.VISIBLE);
}else if( jsonArray.length()>0) {
if (no_data.getVisibility() == View.VISIBLE) {
no_data.setVisibility(View.GONE);
}
}
for(int i=0 ; i<jsonArray.length() ; i++) {
JSONObject data = jsonArray.getJSONObject(i);
appointmentsModel = new AppointmentsModel();
appointmentsModel.setDate(data.getString("appointmentDate"));
appointmentsModel.setTime(data.getString("time"));
appointmentsModel.setSubject(data.getString("subject"));
appointmentsModel.setStatus(data.getString("status"));
appointmentsList.add(appointmentsModel);
for (int b = 0; b < jsonArray5.length(); b++) {
JSONObject data5 = jsonArray5.getJSONObject(i);
appointmentsModel.setHospital(data5.getString("hospitalName"));
}
for (int c = 0; c < jsonArray3.length(); c++) {
JSONObject data3 = jsonArray3.getJSONObject(i);
appointmentsModel.setCounty(data3.getString("countyName"));
}
for (int d = 0; d < jsonArray4.length(); d++) {
JSONObject data4 = jsonArray4.getJSONObject(i);
appointmentsModel.setSpecialization(data4.getString("specializationName"));
}
for (int a = 0; a < jsonArray2.length(); a++) {
JSONObject data2 = jsonArray2.getJSONObject(a);
appointmentsModel.setDoctor(data2.getString("firstName"));
//Toast to test if data set is okay
String test = data2.getString("firstName");
Toast.makeText(Appointments.this,test, Toast.LENGTH_SHORT).show();
}
}
appointmentsAdapter = new AppointmentsAdapter(Appointments.this,appointmentsList);
linearLayoutManager = new LinearLayoutManager(Appointments.this);
appointments_RV.setLayoutManager(linearLayoutManager);
appointments_RV.setItemAnimator(new DefaultItemAnimator());
appointments_RV.setAdapter(appointmentsAdapter);
appointments_RV.setSaveEnabled(true);
appointments_RV.setSaveFromParentEnabled(true);
appointmentsAdapter.notifyDataSetChanged();
} catch (JSONException e) {
System.out.print("error" + e.getMessage());
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting params to login_url
Map<String, String> params = new HashMap<String, String>();
params.put("email", email);
params.put("password", password);
params.put("action", "login");
return params;
}
};
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
这是相同的布局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:padding="4dp"
android:background="#e9dedbdb"
>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="4dp"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="2dp"
android:id="@+id/card_view_contents"
android:orientation="horizontal"
android:padding="2dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_margin="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="Subject : "
android:textColor="@color/artson_blue"
android:textSize="16dp"
/>
<TextView
android:id="@+id/appointments_subject__TV"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Diabetes Check up"
android:textAppearance="@android:style/TextAppearance.DeviceDefault.Medium"
android:textColor="@color/colorAccent" />
<Space
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="1" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/card_view_overflow"
android:src="@drawable/blueoverflow"
android:paddingRight="20dp"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="Date : "
android:textColor="@color/artson_blue"
android:textSize="16dp" />
<TextView
android:id="@+id/appointments_date_TV"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start"
android:text=" 12.04.2017"
android:textAlignment="textStart"
android:textAppearance="@android:style/TextAppearance.DeviceDefault.Medium"
android:textColor="@color/colorAccent" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="Time : "
android:textColor="@color/artson_blue"
android:textSize="16dp" />
<TextView
android:id="@+id/appointments_time_TV"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:text=" 11:00 AM"
android:textAppearance="@android:style/TextAppearance.DeviceDefault.Medium"
android:textColor="#000" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="Hospital : "
android:textColor="@color/artson_blue"
android:textSize="16dp" />
<TextView
android:id="@+id/appointments_hospital_TV"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center"
android:text=" Hema"
android:textAppearance="@android:style/TextAppearance.DeviceDefault.Medium"
android:textColor="#000" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" ("
android:textColor="#000"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/appointments_county_TV"
android:text=""
android:textAppearance="@android:style/TextAppearance.DeviceDefault.Medium"
android:textColor="#000"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=")"
android:textColor="#000"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Doctor : "
android:textColor="@color/artson_blue"
android:textSize="16dp" />
<TextView
android:id="@+id/appointments_Doctor_TV"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center"
android:text=" Dr. Haji"
android:textAppearance="@android:style/TextAppearance.DeviceDefault.Medium"
android:textColor="#000" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" ("
android:textColor="#000"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/appointments_specialization_TV"
android:text=""
android:textAppearance="@android:style/TextAppearance.DeviceDefault.Medium"
android:textColor="#000"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=")"
android:textColor="#000"
/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
<Button
android:id="@+id/btn_pending"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/button_pending"
android:text="Pending"
android:visibility="visible"
android:textAlignment="center"
android:textColor="#ffff"
android:textSize="15sp"
android:layout_below="@+id/card_view_contents" />
<Button
android:id="@+id/btn_approved"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/button_approved"
android:visibility="invisible"
android:text="Approved"
android:textAlignment="center"
android:textColor="#ffff"
android:textSize="15sp"
android:layout_below="@+id/card_view_contents"/>
<Button
android:id="@+id/btn_declined"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/button_declined"
android:visibility="invisible"
android:text="Declined"
android:textAlignment="center"
android:textColor="#ffffff"
android:textSize="15sp"
android:layout_below="@+id/card_view_contents"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
和 onCreateViewHolder
public AppointmentsAdapter.myViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View my_view = inflater.inflate(R.layout.appointments_item, viewGroup, false);
return new myViewHolder(my_view);
}
最佳答案
添加这条语句:
appointmentsList.add(appointmentsModel);
在最后一个内部 for 循环之后。像这样:
for(int i=0 ; i<jsonArray.length() ; i++) {
JSONObject data = jsonArray.getJSONObject(i);
appointmentsModel = new AppointmentsModel();
appointmentsModel.setDate(data.getString("appointmentDate"));
appointmentsModel.setTime(data.getString("time"));
appointmentsModel.setSubject(data.getString("subject"));
appointmentsModel.setStatus(data.getString("status"));
for (int b = 0; b < jsonArray5.length(); b++) {
JSONObject data5 = jsonArray5.getJSONObject(i);
appointmentsModel.setHospital(data5.getString("hospitalName"));
}
for (int c = 0; c < jsonArray3.length(); c++) {
JSONObject data3 = jsonArray3.getJSONObject(i);
appointmentsModel.setCounty(data3.getString("countyName"));
}
for (int d = 0; d < jsonArray4.length(); d++) {
JSONObject data4 = jsonArray4.getJSONObject(i);
appointmentsModel.setSpecialization(data4.getString("specializationName"));
}
for (int a = 0; a < jsonArray2.length(); a++) {
JSONObject data2 = jsonArray2.getJSONObject(a);
appointmentsModel.setDoctor(data2.getString("firstName"));
//Toast to test if data set is okay
String test = data2.getString("firstName");
Toast.makeText(Appointments.this,test, Toast.LENGTH_SHORT).show();
}
// add appointment here
appointmentsList.add(appointmentsModel);
}
关于java - 列表中的最后一项覆盖回收站 View 项中的其他项，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51282803/