Android SDK - ActivityNotFoundException

Question

我正在通過Android Developer's Cookbook工作。我輸入了他們的示例代碼，並且它編譯正確。但是，我在運行時收到了這個異常。

這裏是一本書的代碼：

public class RecognizerIntentExample extends Activity { 
    private static final int RECOGNIZER_EXAMPLE = 1001; 
    private TextView tv; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     tv = (TextView) findViewById(R.id.text_result); 

     //set up button listener 
     Button startButton = (Button)findViewById(R.id.trigger); 
     startButton.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       //RecoginizerIntent prompts for speech and returns text 
       Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); 
       intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM); 
       intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Say a word or phrase\nand it will show as text"); 
       startActivityForResult(intent, RECOGNIZER_EXAMPLE); 
      } 
     }); 
    } 

    @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     //use a switch statement for more than one request code check 
     if (requestCode == RECOGNIZER_EXAMPLE && resultCode==RESULT_OK) { 
      //returned data is a list of matches to the speech input 
      ArrayList<String> result = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS); 

      //display on screen 
      tv.setText(result.toString()); 
     } 

     super.onActivityResult(requestCode, resultCode, data); 
    } 
} 

的異常是從調用startActivityForResult();未來有誰知道可能會導致什麼呢？

Answer 1

聽起來像您正在測試的設備或模擬器沒有辦法解決該意圖。這裏是關於using speech recognition and determining if it is availble on a device的信息。