当我滚动项目时，Recycler视图会交换项目
我正在开发chatbot应用。我正在使用RecycleView来呈现用户和机器人的聊天记录。我必须显示用户列表视图或文本响应取决于他的查询。一切正常，直到RecyclerView滚动为止。每当我的RecyclerView滚动时，它都会更改项目位置。我进行了很多搜索并使用了每种解决方案，但无法解决我的问题。
这是我的活动。java
public class HomeActivity extends AppCompatActivity implements AIListener,
View.OnClickListener {
private RecyclerView recyclerView;
private ChatAdapter mAdapter;
LinearLayoutManager layoutManager;
private ArrayList<Message> messageArrayList;
private EditText inputMessage;
private RelativeLayout btnSend;
Boolean flagFab = true;
PaytmPGService service = null;
Map<String, String> paytmparam = new HashMap<>();
PrefManager prefManager;
private AIService aiService;
AIDataService aiDataService;
AIRequest aiRequest;
Gson gson;
String food_dish = " ";
double price = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO}, 1);
inputMessage = findViewById(R.id.editText_ibm);
btnSend = findViewById(R.id.addBtnibm);
recyclerView = findViewById(R.id.recycler_view_ibm);
messageArrayList = new ArrayList<>();
mAdapter = new ChatAdapter(this,messageArrayList);
prefManager = new PrefManager(this);
GsonBuilder gsonBuilder = new GsonBuilder();
gson = gsonBuilder.create();
layoutManager = new LinearLayoutManager(this);
layoutManager.setStackFromEnd(true);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setHasFixedSize(true);
recyclerView.setItemAnimator(new DefaultItemAnimator());
mAdapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
@Override
public void onItemRangeInserted(int positionStart, int itemCount) {
super.onItemRangeInserted(positionStart, itemCount);
int msgCount = mAdapter.getItemCount();
int lastVisiblePosition = layoutManager.findLastCompletelyVisibleItemPosition();
if (lastVisiblePosition == -1 ||
(positionStart >= (msgCount - 1) &&
lastVisiblePosition == (positionStart - 1))) {
recyclerView.scrollToPosition(positionStart);
}
}
});
recyclerView.setAdapter(mAdapter);
this.inputMessage.setText("");
final AIConfiguration configuration = new AIConfiguration("cabc4b7b9c20409aa7ffb1b3d5fe1243",
AIConfiguration.SupportedLanguages.English,
AIConfiguration.RecognitionEngine.System);
aiService = AIService.getService(this, configuration);
aiService.setListener(this);
aiDataService = new AIDataService(configuration);
aiRequest = new AIRequest();
btnSend.setOnClickListener(this);
inputMessage.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
ImageView fab_img = findViewById(R.id.fab_img_ibm);
Bitmap img = BitmapFactory.decodeResource(getResources(), R.drawable.ic_send_white_24dp);
Bitmap img1 = BitmapFactory.decodeResource(getResources(), R.drawable.ic_mic_white_24dp);
if (s.toString().trim().length() != 0 && flagFab) {
ImageViewAnimatedChange(HomeActivity.this, fab_img, img);
flagFab = false;
} else if (s.toString().trim().length() == 0) {
ImageViewAnimatedChange(HomeActivity.this, fab_img, img1);
flagFab = true;
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
public void ImageViewAnimatedChange(Context c, final ImageView v, final Bitmap new_image) {
final Animation anim_out = AnimationUtils.loadAnimation(c, R.anim.zoom_out);
final Animation anim_in = AnimationUtils.loadAnimation(c, R.anim.zoom_in);
anim_out.setAnimationListener(new Animation.AnimationListener()
{
@Override public void onAnimationStart(Animation animation) {}
@Override public void onAnimationRepeat(Animation animation) {}
@Override public void onAnimationEnd(Animation animation)
{
v.setImageBitmap(new_image);
anim_in.setAnimationListener(new Animation.AnimationListener() {
@Override public void onAnimationStart(Animation animation) {}
@Override public void onAnimationRepeat(Animation animation) {}
@Override public void onAnimationEnd(Animation animation) {}
});
v.startAnimation(anim_in);
}
});
v.startAnimation(anim_out);
}
@Override
public void onClick(View v) {
final String inputmessage = this.inputMessage.getText().toString().trim();
if(!inputmessage.equals("")){
new AsyncTask<String, Void, AIResponse>(){
private AIError aiError;
@Override
protected AIResponse doInBackground(final String... params) {
final AIRequest request = new AIRequest();
String query = params[0];
if (!TextUtils.isEmpty(query))
request.setQuery(query);
try {
return aiDataService.request(request);
} catch (final AIServiceException e) {
aiError = new AIError(e);
return null;
}
}
@Override
protected void onPostExecute(final AIResponse response) {
if (response != null) {
onResult(response);
} else {
onError(aiError);
}
}
}.execute(inputmessage);
}else {
aiService.startListening();
}
inputMessage.setText("");
}
@Override
public void onResult(AIResponse response) {
int itemNumber = 0;
Log.d("dialogeflow response",response.toString());
try {
JSONObject AIResponse = new JSONObject(gson.toJson(response));
Log.d("json response",AIResponse.toString());
final JSONObject result = AIResponse.getJSONObject("result");
JSONArray contexts = result.getJSONArray("contexts");
final JSONObject fulfillment = result.getJSONObject("fulfillment");
if(contexts.length()>0) {
for(int i = 0;i<contexts.length();i++) {
JSONObject context_items = contexts.getJSONObject(i);
JSONObject paramters = context_items.getJSONObject("parameters");
if (paramters.has("Cuisine")) {
prefManager.setCuisinetype(paramters.getString("Cuisine"));
} else if (paramters.has("Restaurants_name")) {
prefManager.setRestaurant_name(paramters.getString("Restaurants_name"));
}
if (paramters.has("number") && !paramters.getString("number").equals("") && paramters.has("Food_Dishes") && !paramters.getString("Food_Dishes").equals("")) {
itemNumber = Integer.parseInt(paramters.getString("number"));
if (itemNumber <= 2 && price !=0) {
price = 300 + (int) (Math.random() * ((1400 - 300) + 1));
} else {
price = 600 + (int) (Math.random() * ((2200 - 600) + 1));
}
food_dish = paramters.getString("Food_Dishes");
}
}
}
final double finalPrice = price;
final int finalItemNumber = itemNumber;
if(!result.getString("resolvedQuery").matches("payment is done successfully")) {
Message usermsg = new Message();
usermsg.setMessage(result.getString("resolvedQuery"));
usermsg.setId("1");
messageArrayList.add(usermsg);
mAdapter.notifyDataSetChanged();
if (fulfillment.has("speech")) {
Log.d("response of speech", fulfillment.getString("speech"));
if (!fulfillment.getString("speech").equals("") && fulfillment.getString("speech") != null) {
final String speech = fulfillment.getString("speech");
if (fulfillment.getString("speech").matches("Redirecting you to the Pay-Tm site")) {
new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
@Override
public void run() {
Message outMessage = new Message();
outMessage.setMessage(speech);
outMessage.setId("2");
messageArrayList.add(outMessage);
mAdapter.notifyDataSetChanged();
getpaytm_params((int) price);
}
}, 2000);
} else {
new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
@Override
public void run() {
Message outMessage = new Message();
if (speech.contains("Your total bill is ₹")) {
Log.d("price", String.valueOf(price));
outMessage.setMessage("Please Confirm your order:- \n" +finalItemNumber +" "+food_dish+" from "+prefManager.getRestaurant_name()+" at Flat No: 20,Galaxy Apartment,Airport Authority Colony,Andheri,Mumbai,Maharashtra 400 047 \n Your total bill is ₹"+price+". \n Do you want to pay by Wallet or by PayTm");
}else{
outMessage.setMessage(speech);
}
outMessage.setId("2");
messageArrayList.add(outMessage);
Log.d("messgae",outMessage.getMessage());
mAdapter.notifyDataSetChanged();
}
}, 2000);
}
} else {
final JSONArray msg = fulfillment.getJSONArray("messages");
for (int i = 0; i < msg.length(); i++) {
if (i == 0) {
Message outMessage = new Message();
JSONObject speechobj = msg.getJSONObject(i);
JSONArray speech = speechobj.getJSONArray("speech");
Log.d("response of speech", speech.getString(0));
outMessage.setMessage(speech.getString(0));
outMessage.setId("2");
messageArrayList.add(outMessage);
} else {
final int itemposition = i;
new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
@Override
public void run() {
Message outMessage = new Message();
try {
JSONObject speechobj = msg.getJSONObject(itemposition);
JSONArray speech = speechobj.getJSONArray("speech");
Log.d("response of speech", speech.getString(0));
outMessage.setMessage(speech.getString(0));
outMessage.setId("2");
messageArrayList.add(outMessage);
mAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
}, 5000);
}
}
}
}
}else{
if (!fulfillment.getString("speech").equals("") && fulfillment.getString("speech") != null) {
final String speech = fulfillment.getString("speech");
new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
@Override
public void run() {
Message outMessage = new Message();
outMessage.setMessage(speech);
outMessage.setId("2");
messageArrayList.add(outMessage);
mAdapter.notifyDataSetChanged();
}
},2000);
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onError(AIError error) {
}
@Override
public void onAudioLevel(float level) {
}
@Override
public void onListeningStarted() {
btnSend.setBackground(getDrawable(R.drawable.recording_bg));
}
@Override
public void onListeningCanceled() {
btnSend.setBackground(getDrawable(R.drawable.stedy_recording));
}
@Override
public void onListeningFinished() {
btnSend.setBackground(getDrawable(R.drawable.stedy_recording));
}
}`
我的ChatAdapter.java类
public class ChatAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private int BOT = 100;
private int BOT_Restaurant_ListView = 101;
private int USER = 102;
private Activity activity;
private PrefManager prefManager;
private int itemposition = -1;
private int menu_itemposition = -1;
private List<Restaurant_List_Model> restaurant_list;
private ArrayList<Message> messageArrayList;
private RestaurantListViewAdapter restaurantListViewAdapter;
private TextToSpeech tts ;
public ChatAdapter(Activity activity, ArrayList<Message> messageArrayList) {
this.activity = activity;
this.messageArrayList = messageArrayList;
tts = new TextToSpeech(activity, new TextToSpeech.OnInitListener() {
@Override
public void onInit(int status) {
if(status != TextToSpeech.ERROR){
tts.setLanguage(Locale.ENGLISH);
}
}
});
prefManager = new PrefManager(activity.getApplicationContext());
setHasStableIds(true);
}
@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View itemview;
if(viewType == BOT){
itemview = LayoutInflater.from(parent.getContext()).inflate(R.layout.bot_msg_view,parent,false);
}else if(viewType == BOT_Restaurant_ListView){
itemview = LayoutInflater.from(parent.getContext()).inflate(R.layout.bot_msg_restaurant_listview,parent,false);
}else {
itemview = LayoutInflater.from(parent.getContext()).inflate(R.layout.user_msg_view,parent,false);
}
return new ViewHolder(itemview);
}
@Override
public int getItemViewType(int position) {
Message message = messageArrayList.get(position);
if(message.getId()!=null && message.getId().equals("2")){
if(message.getMessage().contains("restaurants") || message.getMessage().contains("restaurant")) {
return BOT_Restaurant_ListView;
}else {
return BOT;
}
}else{
return USER;
}
}
@Override
public void onBindViewHolder(@NonNull final RecyclerView.ViewHolder holder, int position) {
int pic_int = 1;
String filename = null;
final Message message = messageArrayList.get(position);
message.setMessage(message.getMessage());
if (holder.getItemViewType() == BOT_Restaurant_ListView) {
Log.d("inside bot listview msg", String.valueOf(BOT_Restaurant_ListView ));
Log.d("adapter position", String.valueOf(holder.getAdapterPosition()));
if(itemposition<holder.getAdapterPosition()){
itemposition = holder.getAdapterPosition();
Log.d("itemposition",String.valueOf(itemposition));
String jsonFileContent;
Log.d("cuisine value", prefManager.getCuisinetype());
if (message.getMessage().contains("restaurants")) {
if(!prefManager.getCuisinetype().equals("") && prefManager.getCuisinetype() != null){
Log.d("restauratn has drawn", "greate");
try {
restaurant_list = new ArrayList<>();
restaurantListViewAdapter = new RestaurantListViewAdapter(activity, restaurant_list);
((ViewHolder) holder).retaurant_listView.setVisibility(View.VISIBLE);
((ViewHolder) holder).retaurant_listView.setAdapter(restaurantListViewAdapter);
Log.d("cuisine value", prefManager.getCuisinetype());
if(message.getMessage().contains("Here are restaurants near you")){
String [] restaurant_Array ={
"indian","french","mexican","italian"
};
int randomNumber = (int) Math.floor(Math.random()*restaurant_Array.length);
filename = restaurant_Array[randomNumber];
Log.d("filename",filename);
jsonFileContent = readFile(activity.getResources().getIdentifier(filename, "raw", activity.getPackageName()));
}else {
filename = prefManager.getCuisinetype().toLowerCase() + "_restaurants";
Log.d("filename", filename);
jsonFileContent = readFile(activity.getResources().getIdentifier(filename, "raw", activity.getPackageName()));
}
JSONObject restaurantfile = new JSONObject(jsonFileContent);
JSONArray jsonArray = restaurantfile.getJSONArray("restaurants");
for (int i = 0; i < jsonArray.length(); i++) {
ImageRoundCorner imageRoundCorner = new ImageRoundCorner();
JSONObject restaurantList = jsonArray.getJSONObject(i);
Restaurant_List_Model restaurant_list_obj = new Restaurant_List_Model();
restaurant_list_obj.setName(restaurantList.getString("name"));
restaurant_list_obj.setLocation(restaurantList.getString("location"));
restaurant_list_obj.setImage_of_item(imageRoundCorner.getRoundedCornerBitmap(BitmapFactory.decodeResource(activity.getResources(), activity.getResources().getIdentifier("restaurant_" + pic_int, "drawable", activity.getPackageName()))));
pic_int++;
restaurant_list_obj.setRating(restaurantList.getLong("rating"));
restaurant_list.add(restaurant_list_obj);
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
tts.speak(message.getMessage(), TextToSpeech.QUEUE_FLUSH, null, null);
} else {
tts.speak(message.getMessage(), TextToSpeech.QUEUE_FLUSH, null);
}
prefManager.setCuisinetype("");
pic_int = 1;
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
restaurantListViewAdapter.notifyDataSetChanged();
}
}else if(message.getMessage().contains("Here are some famous food items from "+prefManager.getRestaurant_name()+" restaurant")){
try {
Log.d("menu has draw","greate");
restaurant_list = new ArrayList<>();
restaurantListViewAdapter = new RestaurantListViewAdapter(activity, restaurant_list);
((ViewHolder) holder).retaurant_listView.setAdapter(restaurantListViewAdapter);
((ViewHolder) holder).retaurant_listView.setVisibility(View.VISIBLE);
Log.d("restaurant name value", prefManager.getRestaurant_name());
jsonFileContent = readFile(R.raw.restaurant_menu);
JSONObject menu_cuisine = new JSONObject(jsonFileContent);
ImageRoundCorner imageRoundCorner = new ImageRoundCorner();
if (menu_cuisine.has(prefManager.getRestaurant_name())) {
JSONObject restaurant_menu = menu_cuisine.getJSONObject("Dominos");
Log.d("Chili's American menu", restaurant_menu.toString());
JSONArray menu = restaurant_menu.getJSONArray("menu");
for (int j = 0; j < menu.length(); j++) {
JSONObject menu_obj = menu.getJSONObject(j);
Restaurant_List_Model restaurant_list_obj = new Restaurant_List_Model();
restaurant_list_obj.setName(menu_obj.getString("name"));
restaurant_list_obj.setLocation(menu_obj.getString("cuisine_type"));
restaurant_list_obj.setImage_of_item(imageRoundCorner.getRoundedCornerBitmap(BitmapFactory.decodeResource(activity.getResources(), activity.getResources().getIdentifier("menu_" + pic_int, "drawable", activity.getPackageName()))));
//restaurant_list_obj.setImage_of_item(imageRoundCorner.getRoundedCornerBitmap(BitmapFactory.decodeResource(activity.getResources(), activity.getResources().getIdentifier("menu_" + pic_int, "drawable", activity.getPackageName()))));
pic_int++;
restaurant_list_obj.setRating(menu_obj.getLong("rating"));
restaurant_list.add(restaurant_list_obj);
}
restaurantListViewAdapter.notifyDataSetChanged();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
tts.speak(message.getMessage(), TextToSpeech.QUEUE_FLUSH, null, null);
} else {
tts.speak(message.getMessage(), TextToSpeech.QUEUE_FLUSH, null);
}
pic_int = 1;
prefManager.setRestaurant_name("");
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Log.d("user_message",message.getMessage());
tts.speak(message.getMessage(), TextToSpeech.QUEUE_FLUSH, null, null);
}else {
tts.speak(message.getMessage(), TextToSpeech.QUEUE_FLUSH, null);
}
pic_int = 1;
} catch (JSONException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
((ViewHolder) holder).retaurant_listView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
switch (action) {
case MotionEvent.ACTION_DOWN:
v.getParent().requestDisallowInterceptTouchEvent(true);
break;
case MotionEvent.ACTION_UP:
v.getParent().requestDisallowInterceptTouchEvent(false);
break;
}
v.onTouchEvent(event);
return true;
}
});
}
} if(holder.getItemViewType()==BOT) {
Log.d("adapter position", String.valueOf(holder.getAdapterPosition()));
Log.d("inside bot msg", String.valueOf(BOT));
((ViewHolder) holder).bot_msg.setText(message.getMessage());
if(itemposition<holder.getAdapterPosition()) {
itemposition = holder.getAdapterPosition();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
tts.speak(message.getMessage(), TextToSpeech.QUEUE_FLUSH, null, null);
} else {
tts.speak(message.getMessage(), TextToSpeech.QUEUE_FLUSH, null);
}
}
}if(holder.getItemViewType() == USER) {
((ViewHolder) holder).user_message.setText(message.getMessage());
}
}
@Override
public void onViewRecycled(@NonNull RecyclerView.ViewHolder holder) {
super.onViewRecycled(holder);
if(holder.isRecyclable()){
Log.d("inside onViewRecycled","great");
// itemposition = holder.getAdapterPosition();
}
}
@Override
public long getItemId(int position) {
return super.getItemId(position);
}
@Override
public int getItemCount() {
return messageArrayList.size();
}
private String readFile(int id) throws IOException
{
BufferedReader reader = null;
reader = new BufferedReader(new InputStreamReader(activity.getResources().openRawResource(id)));
String content = "";
String line;
while ((line = reader.readLine()) != null)
{
content = content + line;
}
return content;
}
public class ViewHolder extends RecyclerView.ViewHolder{
private TextView user_message,bot_msg;
private ListView retaurant_listView;
ViewHolder(View itemView) {
super(itemView);
bot_msg = itemView.findViewById(R.id.bot_message);
user_message = itemView.findViewById(R.id.message);
retaurant_listView = itemView.findViewById(R.id.restaurant_items_list_ibm);
}
}
}
请帮助我解决此问题。 在gif中，您可以看到下面的列表与上面的列表交换了，然后返回
0 个答案:
没有答案
相关问题
最新问题
- 我写了这段代码，但我无法理解我的错误
- 我无法从一个代码实例的列表中删除 None 值，但我可以在另一个实例中。为什么它适用于一个细分市场而不适用于另一个细分市场？
- 是否有可能使 loadstring 不可能等于打印？卢阿
- java中的random.expovariate()
- Appscript 通过会议在 Google 日历中发送电子邮件和创建活动
- 为什么我的 Onclick 箭头功能在 React 中不起作用？
- 在此代码中是否有使用“this”的替代方法？
- 在 SQL Server 和 PostgreSQL 上查询，我如何从第一个表获得第二个表的可视化
- 每千个数字得到
- 更新了城市边界 KML 文件的来源？