我正在使用 arraylist 和 Watson Conversation API 做一个聊天机器人，以在用户输入消息后获取机器人响应。用户将输入一些消息，机器人 API 将根据用户输入显示响应。当用户输入已在 Watson API 中设置的内容时，不会出现错误。但是，当用户键入机器人无法理解的消息时，就会出现此错误。
我不确定如何重组代码来解决这个问题。我希望有人可以帮助并告诉我该怎么做。提前谢谢你！:(
public class BotActivity extends AppCompatActivity {
private static final String TAG = "BotActivity";
private String userText;
private EditText userInput;
private LinearLayout welcomeText;
private ArrayList<String> imageList = new ArrayList<>();
private ArrayList<String> nameList = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_bot);
userInput = (EditText) findViewById(R.id.input);
welcomeText = (LinearLayout) findViewById(R.id.centerLayout);
addItems();
}
private void addItems() {
userInput.setImeOptions(userInput.getImeOptions() | EditorInfo.IME_ACTION_DONE);
userInput.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
welcomeText.setVisibility(View.GONE);
titleView.setVisibility(View.GONE);
userText = userInput.getText().toString().trim();
nameList.add(userText);
imageList.add("https://i.pinimg.com/originals/99/7c/90/997c901be018004a07d66ae4920fd3a6.png");
userInput.setText("");
setRecyclerView();
final ConversationService myConversationService = new ConversationService(
"2017-05-26",
getString(R.string.username),
getString(R.string.password)
);
MessageRequest request = new MessageRequest.Builder().inputText(userText).build();
myConversationService.message(getString(R.string.workspace), request)
.enqueue(new ServiceCallback<MessageResponse>() {
@Override
public void onResponse(MessageResponse response) {
final String outputText = response.getText().get(0);
runOnUiThread(new Runnable() {
@Override
public void run() {
nameList.add(outputText);
imageList.add("http://4.bp.blogspot.com/-fGmmzMLA4zw/VLSHyleQbXI/AAAAAAAAODw/YevIrHiSJ7o/s1600/blushicon.png");
setRecyclerView();
}
});
if (response.getIntents().get(0).getIntent().endsWith("RequestQuote")) {
String quotesURL = "https://api.forismatic.com/api/1.0/" + "?method=getQuote&format=text&lang=en";
Fuel.INSTANCE.get(quotesURL, null).responseString(new Handler<String>() {
@Override
public void success(String quote) {
nameList.add(quote);
imageList.add("http://4.bp.blogspot.com/-fGmmzMLA4zw/VLSHyleQbXI/AAAAAAAAODw/YevIrHiSJ7o/s1600/blushicon.png");
setRecyclerView();
}
@Override
public void failure(@NotNull FuelError fuelError) {
Toast.makeText(BotActivity.this, fuelError.toString(), Toast.LENGTH_SHORT).show();
}
});
}
}
@Override
public void onFailure(Exception e) {
Log.e(TAG, e.toString());
}
});
}
return false;
}
});
}
private void setRecyclerView() {
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
recyclerView.setHasFixedSize(true);
BotAdapter adapter = new BotAdapter(this, nameList, imageList);
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
}
}
这是机器人适配器的编码：
public class BotAdapter extends RecyclerView.Adapter<BotAdapter.ViewHolder> {
private static final String TAG = "BotAdapter";
private ArrayList<String> messageList = new ArrayList<>();
private ArrayList<String> profileImageList = new ArrayList<>();
private Context context;
private JumpingBeans jumpingBeans;
public BotAdapter(Context context, ArrayList<String> nameList, ArrayList<String> imageList) {
this.messageList = nameList;
this.profileImageList = imageList;
this.context = context;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.single_bot_layout, viewGroup, false);
ViewHolder viewHolder = new ViewHolder(view);
return viewHolder;
}
@Override
public void onBindViewHolder(@NonNull ViewHolder viewHolder, final int i) {
Glide.with(context)
.asBitmap()
.load(profileImageList.get(i))
.into(viewHolder.showProfileImage);
viewHolder.showMessage.setText(messageList.get(i));
viewHolder.showMessage.setTextIsSelectable(true);
viewHolder.parentLayout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// click on recycler items action
// Toast.makeText(context, messageList.get(i), Toast.LENGTH_SHORT).show();
}
});
}
@Override
public int getItemCount() {
return messageList.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
private TextView showMessage;
private CircleImageView showProfileImage;
private RelativeLayout parentLayout;
public ViewHolder(@NonNull View itemView) {
super(itemView);
showMessage = itemView.findViewById(R.id.showMessage);
showProfileImage = itemView.findViewById(R.id.showImage);
parentLayout = itemView.findViewById(R.id.list_single_layout);
}
}
}
错误：
05-05 11:47:24.826 9840-9994/com.amethyst.secretgarden D/OkHttp: --> POST https://gateway.watsonplatform.net/conversation/api/v1/workspaces/7e18adc0-c6db-4897-a83c-17c788db377e/message?version=2017-05-26 http/1.1 (27-byte body)
05-05 11:47:25.076 9840-9994/com.amethyst.secretgarden D/OkHttp: <-- 200 OK https://gateway.watsonplatform.net/conversation/api/v1/workspaces/7e18adc0-c6db-4897-a83c-17c788db377e/message?version=2017-05-26 (245ms, unknown-length body)
05-05 11:47:25.076 9840-9994/com.amethyst.secretgarden E/BotActivity: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
05-05 11:47:25.656 9840-9840/com.amethyst.secretgarden D/OppoEditor: OppoEditor, classname = android.support.v7.widget.AppCompatTextView,packageName = com.amethyst.secretgarden
05-05 11:47:25.716 9840-9840/com.amethyst.secretgarden D/OppoEditor: OppoEditor, classname = android.support.v7.widget.AppCompatTextView,packageName = com.amethyst.secretgarden
05-05 11:47:25.736 9840-9840/com.amethyst.secretgarden D/OppoEditor: OppoEditor, classname = android.support.v7.widget.AppCompatTextView,packageName = com.amethyst.secretgarden
05-05 11:47:25.736 9840-9840/com.amethyst.secretgarden D/OppoEditor: OppoEditor, classname = android.support.v7.widget.AppCompatTextView,packageName = com.amethyst.secretgarden
05-05 11:47:25.736 9840-9840/com.amethyst.secretgarden D/OppoEditor: OppoEditor, classname = android.support.v7.widget.AppCompatTextView,packageName = com.amethyst.secretgarden
05-05 11:47:30.526 9840-9855/com.amethyst.secretgarden I/art: Background sticky concurrent mark sweep GC freed 92796(5MB) AllocSpace objects, 0(0B) LOS objects, 23% free, 18MB/24MB, paused 1.611ms total 273.636ms
05-05 11:47:38.986 9840-10155/com.amethyst.secretgarden V/FA: Recording user engagement, ms: 85341
05-05 11:47:38.996 9840-10155/com.amethyst.secretgarden V/FA: Connecting to remote service
05-05 11:47:39.076 9840-10155/com.amethyst.secretgarden V/FA: Activity paused, time: 14744243
05-05 11:47:39.116 9840-10155/com.amethyst.secretgarden D/FA: Logging event (FE): user_engagement(_e), Bundle[{firebase_event_origin(_o)=auto, engagement_time_msec(_et)=85341, firebase_screen_class(_sc)=BotActivity, firebase_screen_id(_si)=6871416413478563474}]
05-05 11:47:39.276 9840-10155/com.amethyst.secretgarden V/FA: Connection attempt already in progress
05-05 11:47:39.276 9840-10155/com.amethyst.secretgarden D/FA: Connected to remote service
05-05 11:47:39.276 9840-10155/com.amethyst.secretgarden V/FA: Processing queued up service tasks: 2
05-05 11:47:39.286 9840-9840/com.amethyst.secretgarden W/InputMethodManager: startInputInner : InputBindResult == null need restart
05-05 11:47:39.306 9840-9840/com.amethyst.secretgarden W/IInputConnectionWrapper: showStatusIcon on inactive InputConnection