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我的 Recycler View 有 2 个按钮:REnew 和 Return。两者都不起作用。
了解到Recycler View 无法实现onclick,所以我在Adapter中实现了同样的功能。在适配器中 - 我添加了 toast msg 来测试按钮 onclick 是否被捕获,它没有显示。
有没有人可以建议,是什么原因?如果您需要查看更多代码,请告诉我。
非常感谢。
BookListMyAccAdapter.java
package com.androidatc.customviewindrawer;
import android.app.Activity;
import android.support.v7.widget.CardView;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;
import com.loopj.android.http.TextHttpResponseHandler;
import java.util.List;
import cz.msebera.android.httpclient.Header;
public class BookListMyAccAdapter extends RecyclerView.Adapter<BookListMyAccAdapter.PersonViewHolder> {
public static class PersonViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
CardView cv;
TextView title;
TextView dueDt;
// ImageView personPhoto;
public Button searchBtn, renewBtn, returnBtn;
PersonViewHolder(View itemView) {
super(itemView);
` itemView.setOnClickListener(this); cv = (CardView) itemView.findViewById(R.id.cv); title = (TextView) itemView.findViewById(R.id.title); dueDt = (TextView) itemView.findViewById(R.id.dueDate); //personPhoto = (ImageView)itemView.findViewById(R.id.person_photo); renewBtn = (Button) itemView.findViewById(R.id.renew_button); returnBtn = (Button) itemView.findViewById(R.id.checkin_button);
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.checkin_button:
String barCode = null, patronId = null;
Log.d("TAG", "Success");
Toast.makeText(myActivity.getApplicationContext(), "B4 calling webservice", Toast.LENGTH_LONG).show();
returnBook(barCode, patronId);
break;
case R.id.renew_button:
barCode = null;
patronId = null;
Log.d("TAG", "Success");
Toast.makeText(myActivity.getApplicationContext(), "B4 calling webservice", Toast.LENGTH_LONG).show();
renewBook(barCode, patronId);
break;
}
}}
List<Books> books;
public static Activity myActivity;
BookListMyAccAdapter(List<Books> books, Activity myActivity) {
this.books = books;
this.myActivity = myActivity;
}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
@Override
public PersonViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_my_acc, viewGroup, false);
PersonViewHolder pvh = new PersonViewHolder(v);
return pvh;
}
@Override
public void onBindViewHolder(PersonViewHolder personViewHolder, int i) {
personViewHolder.title.setText(books.get(i).title);
personViewHolder.dueDt.setText(books.get(i).dueOn);
// personViewHolder.personPhoto.setImageResource(books.get(i).photoId);
}
@Override
public int getItemCount() {
return books.size();
}
public static void renewBook(String barCode, String patronId) {
final int DEFAULT_TIMEOUT = 200000 * 1000000000;
try {
// Make RESTful webservice call using AsyncHttpClient object
AsyncHttpClient client = new AsyncHttpClient();
client.setTimeout(DEFAULT_TIMEOUT);
// progress.setMessage("Please Wait...");
// progress.setIndeterminate(false);
// progress.setCancelable(false);
// progress.show();
RequestParams params = new RequestParams();
params.put("barcode", "B1246855");
params.put("patron", "thida");
Toast.makeText(myActivity.getApplicationContext(), "B4 calling webservice", Toast.LENGTH_LONG).show();
client.post(" htt=1", new TextHttpResponseHandler() {
@Override
public void onSuccess(int i, Header[] headers, String response) {
// Toast.makeText(getActivity().getApplicationContext(), "Response: " + response, Toast.LENGTH_LONG).show();
Log.d("TAG", "Success");
}
@Override
public void onFailure(int statusCode, Header[] headers, String response, Throwable error) {
// Toast.makeText(getActivity().getApplicationContext(), "Status code :" + statusCode + "errmsg : " + error.getMessage(), Toast.LENGTH_LONG).show();
// Toast.makeText(getActivity().getApplicationContext(), "Unexpected Error occcured! [Most common Error: Device might not be connected to Internet or remote server is not up and running]", Toast.LENGTH_LONG).show();
Log.d("TAG", "Failure");
}
}
);
} catch (Exception e) {
e.printStackTrace();
// Toast.makeText(getActivity().getApplicationContext(), "Exception Caught", Toast.LENGTH_LONG).show();
}
// progress.dismiss();
// Toast.makeText(getActivity().getApplicationContext(), "After calling webservice", Toast.LENGTH_LONG).show();
}
public static void returnBook(String barCode, String patronId) {
final int DEFAULT_TIMEOUT = 200000 * 1000000000;
try {
// Make RESTful webservice call using AsyncHttpClient object
AsyncHttpClient client = new AsyncHttpClient();
client.setTimeout(DEFAULT_TIMEOUT);
// progress.setMessage("Please Wait...");
// progress.setIndeterminate(false);
// progress.setCancelable(false);
// progress.show();
RequestParams params = new RequestParams();
params.put("barcode", "B1246855");
params.put("patron", "thida");
// Toast.makeText(getActivity().getApplicationContext(), "B4 calling webservice", Toast.LENGTH_LONG).show();
client.post("http://43.246855", new AsyncHttpResponseHandler() {
// http://koha-dev.cvpl.com
@Override
public void onSuccess(int i, Header[] headers, byte[] bytes) {
// Toast.makeText(getActivity().getApplicationContext(), "Response: " + headers, Toast.LENGTH_LONG).show();
Log.d("TAG", "Success");
}
@Override
public void onFailure(int i, Header[] headers, byte[] bytes, Throwable throwable) {
// Toast.makeText(getActivity().getApplicationContext(), "Status code :" + headers + "errmsg : " + throwable.getMessage(), Toast.LENGTH_LONG).show();
// Toast.makeText(getActivity().getApplicationContext(), "Unexpected Error occcured! [Most common Error: Device might not be connected to Internet or remote server is not up and running]", Toast.LENGTH_LONG).show();
Log.d("TAG", "Failure");
}
}
);
} catch (Exception e) {
e.printStackTrace();
// Toast.makeText(getActivity().getApplicationContext(), "Exception Caught", Toast.LENGTH_LONG).show();
}
// progress.dismiss();
// Toast.makeText(getActivity().getApplicationContext(), "After calling webservice", Toast.LENGTH_LONG).show();
}
}
RecyclerMyAccFrag.java
package com.androidatc.customviewindrawer;
import android.app.Fragment;
import android.app.ProgressDialog;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;
import com.loopj.android.http.TextHttpResponseHandler;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import cz.msebera.android.httpclient.Header;
public class RecyclerMyAccFrag extends Fragment
// implements View.OnClickListener
{
public List<Books> books;
public RecyclerView rv;
public TextView formatTxt, contentTxt, TitleTxt, PublisherTxt, CreatorTxt, AvailabiltyTxt;
public Button searchBtn,renewBtn, returnBtn;
ProgressDialog progress;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.recycler_my_acc, container, false);
// renewBtn = (Button) rootView.findViewById(R.id.renew_button);
// returnBtn = (Button) rootView.findViewById(R.id.checkin_button);
// renewBtn.setOnClickListener(this);
// returnBtn.setOnClickListener(this);
String response =getArguments().getString("book_xml");
rv=(RecyclerView)rootView.findViewById(R.id.rv);
LinearLayoutManager llm = new LinearLayoutManager(getActivity());
rv.setLayoutManager(llm);
rv.setHasFixedSize(true);
// progress = new ProgressDialog(getActivity());
readDetails(response);
initializeAdapter();
return rootView;
}
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
public void onFragmentInteraction(Uri uri);
}
public void initializeData(String[] titles, String [] dueDts, int total){
books = new ArrayList<>();
for(int i = 0;i<total;i++)
{
books.add(new Books(titles[i], dueDts[i]));
// Toast.makeText(getActivity().getApplicationContext(), "Title : " + i +
// " " + titles[i] + " Due Date: " + dueDts[i], Toast.LENGTH_LONG).show();
}
Toast.makeText(getActivity().getApplicationContext(), "Total Number of Books Found:"
+ total , Toast.LENGTH_LONG).show();
}
public void initializeAdapter(){
BookListMyAccAdapter adapter = new BookListMyAccAdapter(books, getActivity());
rv.setAdapter(adapter);
}
// parse XML
public void readDetails(String response) {
DocumentBuilder builder = null;
try {
builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
InputSource src = new InputSource();
src.setCharacterStream(new StringReader(response));
Document doc = builder.parse(src);
// NodeList nodes1 = doc.getElementsByTagName("title");
src.setCharacterStream(new StringReader(response));
NodeList nodes = doc.getElementsByTagName("date_due_sql");
int cnt = 0;
// String[] titles1 = new String[10000];
String[] titles = new String[10000];
String[] dueDts = new String[10000];
for (int i = 0; i < nodes.getLength(); i++) {
if (nodes.item(i).getTextContent() == "title") {
// titles1[i] = doc.getElementsByTagName("title").item(0).getTextContent();
}
if (nodes.item(i).getTextContent().trim().isEmpty()) {
cnt++;
}
}
Log.e("TAGLOG", "" + cnt);
for (int i = 0; i < nodes.getLength(); i++) {
titles[i] = doc.getElementsByTagName("title").item(i).getTextContent();
dueDts[i] = doc.getElementsByTagName("date_due_sql").item(i).getTextContent();
}
initializeData(titles, dueDts, nodes.getLength());
// Toast.makeText(getActivity().getApplicationContext(), "Total Number of Books Found:"
// + nodes1.getLength() + " " + titles[0], Toast.LENGTH_LONG).show();
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getActivity().getApplicationContext(), "No Book Found", Toast.LENGTH_LONG).show();
} finally {
}
}
public void renewBook(String barCode, String patronId)
{
final int DEFAULT_TIMEOUT = 200000 * 1000000000;
try {
// Make RESTful webservice call using AsyncHttpClient object
AsyncHttpClient client = new AsyncHttpClient();
client.setTimeout(DEFAULT_TIMEOUT);
progress.setMessage("Please Wait...");
progress.setIndeterminate(false);
progress.setCancelable(false);
progress.show();
RequestParams params = new RequestParams();
params.put("barcode", "B1246855");
params.put("patron", "thida");
Toast.makeText(getActivity().getApplicationContext(), "B4 calling webservice", Toast.LENGTH_LONG).show();
client.post(" http://koha-ded=1", new TextHttpResponseHandler() {
@Override
public void onSuccess(int i, Header[] headers, String response) {
Toast.makeText(getActivity().getApplicationContext(), "Response: " + response, Toast.LENGTH_LONG).show();
Log.d("TAG", "Success");
}
@Override
public void onFailure(int statusCode, Header[] headers, String response, Throwable error) {
Toast.makeText(getActivity().getApplicationContext(), "Status code :" + statusCode + "errmsg : " + error.getMessage(), Toast.LENGTH_LONG).show();
Toast.makeText(getActivity().getApplicationContext(), "Unexpected Error occcured! [Most common Error: Device might not be connected to Internet or remote server is not up and running]", Toast.LENGTH_LONG).show();
Log.d("TAG", "Failure");
}
}
);
}
catch (Exception e)
{
e.printStackTrace();
Toast.makeText(getActivity().getApplicationContext(), "Exception Caught", Toast.LENGTH_LONG).show();
}
progress.dismiss();
Toast.makeText(getActivity().getApplicationContext(), "After calling webservice", Toast.LENGTH_LONG).show();
}
public void returnBook(String barCode, String patronId)
{
final int DEFAULT_TIMEOUT = 200000 * 1000000000;
try {
// Make RESTful webservice call using AsyncHttpClient object
AsyncHttpClient client = new AsyncHttpClient();
client.setTimeout(DEFAULT_TIMEOUT);
progress.setMessage("Please Wait...");
progress.setIndeterminate(false);
progress.setCancelable(false);
progress.show();
RequestParams params = new RequestParams();
params.put("barcode", "B1246855");
params.put("patron", "thida");
Toast.makeText(getActivity().getApplicationContext(), "B4 calling webservice", Toast.LENGTH_LONG).show();
client.post("http:vice46855", new AsyncHttpResponseHandler() {
// http://koha-dev.cvpl.com.sg/cgi-bin/koha/ilsdi.pl?service=RenewLoan&patron_id=1&item_id=1
@Override
public void onSuccess(int i, Header[] headers, byte[] bytes) {
Toast.makeText(getActivity().getApplicationContext(), "Response: " + headers, Toast.LENGTH_LONG).show();
Log.d("TAG", "Success");
}
@Override
public void onFailure(int i, Header[] headers, byte[] bytes, Throwable throwable) {
Toast.makeText(getActivity().getApplicationContext(), "Status code :" + headers + "errmsg : " + throwable.getMessage(), Toast.LENGTH_LONG).show();
Toast.makeText(getActivity().getApplicationContext(), "Unexpected Error occcured! [Most common Error: Device might not be connected to Internet or remote server is not up and running]", Toast.LENGTH_LONG).show();
Log.d("TAG", "Failure");
}
}
);
}
catch (Exception e)
{
e.printStackTrace();
Toast.makeText(getActivity().getApplicationContext(), "Exception Caught", Toast.LENGTH_LONG).show();
}
progress.dismiss();
Toast.makeText(getActivity().getApplicationContext(), "After calling webservice", Toast.LENGTH_LONG).show();
}}
item_my_acc.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/cv"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/title"
android:layout_gravity="left"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/dueDate"
android:layout_below="@+id/title"
/>
<Button
android:id="@+id/renew_button"
android:layout_alignParentRight="true"
android:text="@string/renew"
android:layout_below="@id/dueDate"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_gravity="right"/>
<Button
android:id="@+id/checkin_button"
android:layout_alignParentRight="true"
android:text="@string/checkin"
android:layout_below="@id/renew_button"
android:layout_width="90dp"
android:layout_height="40dp"
android:layout_gravity="right"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
最佳答案
我想你忘了将 OnClickListener 添加到你的 View 中:
public static class PersonViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
CardView cv;
TextView title;
TextView dueDt;
public Button searchBtn, renewBtn, returnBtn;
PersonViewHolder(View itemView) {
super(itemView);
cv = (CardView) itemView.findViewById(R.id.cv);
title = (TextView) itemView.findViewById(R.id.title);
dueDt = (TextView) itemView.findViewById(R.id.dueDate);
renewBtn = (Button) itemView.findViewById(R.id.renew_button);
returnBtn = (Button) itemView.findViewById(R.id.checkin_button);
renewBtn.setOnClickListener(this); // <- This lines
returnBtn.setOnClickListener(this); // <- This lines
}
(...)
}
关于java - Onclick 按钮在适配器中不起作用(Recycler 查看应用程序),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35333738/
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