问题描述
在我的 recyclerview 中，我从 Internet 获取数据，下拉它会刷新数据，但在从 Internet 检索信息的过程中，刷新图标似乎冻结了。
不确定我做错了什么。 票务活动.java
public class TicketActivity extends AppCompatActivity {
SwipeRefreshLayout swipeLayout;
String LOG_TAG = "ONLINE TICKET: ";
ArrayList<String> ticketIDList,issueList,statusList,created_dateList;
RecyclerView recyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ticket);
ticketIDList = new ArrayList<>();
issueList = new ArrayList<>();
statusList = new ArrayList<>();
created_dateList = new ArrayList<>();
// Getting SwipeContainerLayout
swipeLayout = findViewById(R.id.swipeContainer);
recyclerView = findViewById(R.id.rvItems);
getTicketDetails();
// Adding Listener
swipeLayout.setonRefreshListener(() -> {
getTicketDetails();
Toast.makeText(getApplicationContext(),"Refreshed!",Toast.LENGTH_LONG).show();
swipeLayout.setRefreshing(false);
});
}
void getTicketDetails() {
ticketIDList.clear();
issueList.clear();
statusList.clear();
created_dateList.clear();
Thread thread = new Thread(() -> {
try {
String response_code;
String response_data = NetworkUtils.ticket_details("dev","General");
if (response_data != null) {
JSONObject obj_response = new JSONObject(response_data);
response_code = obj_response.getString("ResponseCode");
String issue,ticket_number,created_date,status;
if (response_code.equals("200")) {
JSONArray response_all_data = obj_response.getJSONArray("ResponseData");
for (int j = 0; j < response_all_data.length(); j++) {
JSONObject row_details = response_all_data.getJSONObject(j);
ticket_number = row_details.getString("ticket_number");
issue = row_details.getString("issue");
created_date = row_details.getString("created_date");
status = row_details.getString("status");
ticketIDList.add(ticket_number);
issueList.add(issue);
statusList.add(status);
created_dateList.add(created_date);
}
}
}
} catch (Exception e) {
Log.i(LOG_TAG,"Error" + e.toString());
}
});
thread.start();
try {
thread.join();
GridLayoutManager gridLayoutManager = new GridLayoutManager(getApplicationContext(),1);
recyclerView.setLayoutManager(gridLayoutManager);
CustomAdapter_Tickets customAdapter = new CustomAdapter_Tickets(this,ticketIDList,created_dateList);
recyclerView.setAdapter(customAdapter); // set the Adapter to RecyclerView
} catch (Exception e) {
Log.i(LOG_TAG,"Error" + e.toString());
}
}
}
CustomAdapter_Tickets.java
class CustomAdapter_Tickets extends RecyclerView.Adapter<CustomAdapter_Tickets.MyViewHolder> {
ArrayList<String> ticketIDList,created_dateList;
Context context;
public CustomAdapter_Tickets(Context context,ArrayList<String> ticketIDList,ArrayList<String> issueList,ArrayList<String> statusList,ArrayList<String> created_dateList) {
this.context = context;
this.ticketIDList = ticketIDList;
this.issueList = issueList;
this.statusList = statusList;
this.created_dateList = created_dateList;
}
@NonNull
@Override
public CustomAdapter_Tickets.MyViewHolder onCreateViewHolder(ViewGroup parent,int viewType) {
// inflate the item Layout
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.ticket_layout,parent,false);
return new CustomAdapter_Tickets.MyViewHolder(v);
}
@Override
public void onBindViewHolder(CustomAdapter_Tickets.MyViewHolder holder,final int position) {
// set the data in items
holder.txt_ticket_number.setText(String.format("ID: %s",ticketIDList.get(position)));
holder.txt_issue.setText(String.format("%s",issueList.get(position)));
holder.txt_status.setText(String.format("%s",statusList.get(position)));
holder.txt_created_date.setText(String.format("%s",created_dateList.get(position)));
}
@Override
public int getItemCount() {
return ticketIDList.size();
}
public static class MyViewHolder extends RecyclerView.ViewHolder {
TextView txt_ticket_number,txt_issue,txt_status,txt_created_date;
CardView card_view;
public MyViewHolder(View itemView) {
super(itemView);
txt_ticket_number = itemView.findViewById(R.id.txt_ticket_number);
txt_issue = itemView.findViewById(R.id.txt_issue);
txt_status = itemView.findViewById(R.id.txt_status);
txt_created_date = itemView.findViewById(R.id.txt_created_date);
card_view = itemView.findViewById(R.id.card_view);
}
}
}
ticket_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/tickets_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<androidx.cardview.widget.CardView
android:id="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:textSize="16sp">
<TextView
android:id="@+id/txt_ticket_number"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/txt_issue"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/txt_status"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/txt_created_date"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<View
android:id="@+id/divider"
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="?android:attr/listDivider" />
</LinearLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>
activity_ticket.xml
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/swipeContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rvItems"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true" />
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
解决方法
你应该设置刷新为真
swipeLayout.setOnRefreshListener(() -> {
swipeLayout.setRefreshing(true);
getTicketDetails();
});
稍后在您的 getTicketDetails 函数中，您可以在收到数据后将其设置为 false
void getTicketDetails() {
ticketIDList.clear();
issueList.clear();
statusList.clear();
created_dateList.clear();
Thread thread = new Thread(() -> {
try {
String response_code;
String response_data = NetworkUtils.ticket_details("dev","General");
if (response_data != null) {
JSONObject obj_response = new JSONObject(response_data);
response_code = obj_response.getString("ResponseCode");
String issue,ticket_number,created_date,status;
if (response_code.equals("200")) {
JSONArray response_all_data = obj_response.getJSONArray("ResponseData");
for (int j = 0; j < response_all_data.length(); j++) {
JSONObject row_details = response_all_data.getJSONObject(j);
ticket_number = row_details.getString("ticket_number");
issue = row_details.getString("issue");
created_date = row_details.getString("created_date");
status = row_details.getString("status");
ticketIDList.add(ticket_number);
issueList.add(issue);
statusList.add(status);
created_dateList.add(created_date);
}
}
}
} catch (Exception e) {
Log.i(LOG_TAG,"Error" + e.toString());
}
});
thread.start();
try {
thread.join();
GridLayoutManager gridLayoutManager = new GridLayoutManager(getApplicationContext(),1);
recyclerView.setLayoutManager(gridLayoutManager);
CustomAdapter_Tickets customAdapter = new CustomAdapter_Tickets(this,ticketIDList,issueList,statusList,created_dateList);
recyclerView.setAdapter(customAdapter); // set the Adapter to RecyclerView
Toast.makeText(getApplicationContext(),"Refreshed!",Toast.LENGTH_LONG).show();
swipeLayout.setRefreshing(false);
} catch (Exception e) {
Log.i(LOG_TAG,"Error" + e.toString());
}
}
这应该可以解决您的问题..