的Android翻译应用程序没有在真实设备

Question

我试图让从英语到孟加拉使用Yandex的API翻译应用。

它工作正常，在模拟器，但在真实的设备它显示了只有一个文本视图字的结果，但写一个句子时，它显示空/什么。

我认为这个问题是缓冲区溢出，但不知道如何解决它的实际设备。这里有一些参考图片。在仿真结果正常工作：

在真机上它显示在文本视图空：

但是，当一个单词在真实设备使用它工作正常。

这里是我的AsyncTask代码：

public class 

    TranslatorBackgroundTask extends AsyncTask<String, Void, String> { 
    //Declare Context 
    Context ctx; 
    //Set Context 
    TranslatorBackgroundTask(Context ctx){ 
     this.ctx = ctx; 
    } 

    String resultString; 

    @Override 
    protected String doInBackground(String... params) { 
     //String variables 
     String textToBeTranslated = params[0]; 
     String languagePair = params[1]; 

     String jsonString; 

     try { 
      //Set up the translation call URL 
      String yandexKey = "trnsl.1.1.20170823T130435Z.79a583874abfc8ff.61e23593359fdc92452e69a3d5ec05347fc4180b"; 
      String yandexUrl = "https://translate.yandex.net/api/v1.5/tr.json/translate?key=" + yandexKey 
        + "&text=" + textToBeTranslated + "&lang=" + languagePair; 
      URL yandexTranslateURL = new URL(yandexUrl); 

      //Set Http Conncection, Input Stream, and Buffered Reader 
      HttpURLConnection httpJsonConnection = (HttpURLConnection) yandexTranslateURL.openConnection(); 
      InputStream inputStream = httpJsonConnection.getInputStream(); 
      BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream)); 

      //Set string builder and insert retrieved JSON result into it 
      StringBuilder jsonStringBuilder = new StringBuilder(); 
      while ((jsonString = bufferedReader.readLine()) != null) { 
       jsonStringBuilder.append(jsonString + "\n"); 
      } 

      //Close and disconnect 
      try { 
       bufferedReader.close(); 
      } catch (IOException e) { 
       e.printStackTrace(); 
      } 
      inputStream.close(); 
      httpJsonConnection.disconnect(); 

      //Making result human readable 
      resultString = jsonStringBuilder.toString().trim(); 

      //Getting the characters between [ and ] 

      resultString = resultString.substring(resultString.indexOf('[')+1); 
      resultString = resultString.substring(0,resultString.indexOf("]")); 

      //Getting the characters between " and " 
      resultString = resultString.substring(resultString.indexOf("\"")+1); 
      resultString = resultString.substring(0,resultString.indexOf("\"")); 

      Log.d("Translation Result:", resultString); 
      return jsonStringBuilder.toString().trim(); 

     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
     return null; 
    } 
    //String text = String.valueOf(resultString); 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
    } 

    @Override 
    protected void onPostExecute(String result) { 
     MainActivity.tvTranslatedText.setText(resultString); 
     Toast.makeText(ctx, resultString, Toast.LENGTH_LONG).show(); 
     super.onPostExecute(result); 
    } 

    @Override 
    protected void onProgressUpdate(Void... values) { 
     super.onProgressUpdate(values); 
    } 
} 

而对于主要活动代码：

public class MainActivity extends AppCompatActivity{ 

    Context context=this; 
    private static final int REQUEST_CODE = 1234; 
    static TextView tvTranslatedText; 
    EditText etUserText; 
    Button buTranslate; 
    Button buSpeak; 

     @Override 
     protected void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.layout_activity_main); 
      tvTranslatedText = (TextView)findViewById(R.id.tvTranslatedText); 
      etUserText = (EditText)findViewById(R.id.etUserText); 

      buTranslate = (Button)findViewById(R.id.buTranslate); 

      buSpeak = (Button)findViewById(R.id.buSpeak); 
     } 



    public void buTranslate(View view) { 
     //Default variables for translation 
     String textToBeTranslated = ""; 
     textToBeTranslated= etUserText.getText().toString(); 
     String languagePair = "en-bn"; //English to bengali ("<source_language>-<target_language>") 
     //Executing the translation function 
     Translate(textToBeTranslated,languagePair); 

    } 


    //Function for calling executing the Translator Background Task 
    void Translate(String textToBeTranslated, String languagePair){ 
     TranslatorBackgroundTask translatorBackgroundTask= new TranslatorBackgroundTask(context); 

     String translationResult = ""; 

     translationResult = String.valueOf(translatorBackgroundTask.execute(textToBeTranslated,languagePair)); // Returns the translated text as a String 
     Log.d("Translation Result",translationResult); // Logs the result in Android Monitor 

    } 

    //Speak button activities 

    public void buSpeak(View view) { 
     startVoiceRecognitionActivity(); 
    } 

    private void startVoiceRecognitionActivity() 
    { 
     Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); 
     intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, 
       RecognizerIntent.LANGUAGE_MODEL_FREE_FORM); 
     intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speak to translate"); 
     startActivityForResult(intent, REQUEST_CODE); 
    } 

    /** 
    * Handle the results from the voice recognition activity. 
    */ 
    @Override 
    public void onActivityResult(int requestCode, int resultCode, Intent data) { 

     if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) { 

      if (data != null) { 

       //pull all of the matches 
       ArrayList<String> matches = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS); 

       String topResult = matches.get(0); 

       EditText AutoText = (EditText) findViewById(R.id.etUserText); 
       AutoText.setText(topResult); 
      } 
     } 
    } 
} 

错误消息：

引起：com.google .android.apps.gsa.shared.exception.GsaIOException：错误代码：393238 |缓冲区溢出，没有可用空间。

Answer 1

你为什么没有一个侦听器添加到您的示例代码？

尝试MainActivity添加这些对onCreate：

buTranslate.setOnClickListener(
    new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      buTranslate(view); 
     } 
    } 
); 

更新： 有另一个问题。 android sdk 16上的模拟器不能正确显示Unicode。这就是为什么你看不到你的结果，因为那些是Unicodes。试试Log来打印您的resultString。