如何在整个屏幕上进行语音识别器工作

Question

我正在为视障人士开发一个应用程序，为此，我希望每当用户触摸屏幕上的任何位置时，语音识别器都应启动。

我已经做了语音识别器和其他功能。.但是我无法使我的语音识别器在TouchListener上工作...

TouchListener未将活动视为视图。 应用程序崩溃

完整的代码如下。

public class MainActivity extends Activity
{

private static final int REQUEST_CODE = 1234;
private ListView wordsList;
protected Button TextToSpeech;
/**
 * Called with the activity is first created.
 */
@Override
public void onCreate(Bundle savedInstanceState)
{
requestWindowFeature(Window.FEATURE_NO_TITLE);  getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
super.onCreate(savedInstanceState);
setContentView(R.layout.voice_recog);
Button speakButton = (Button) findViewById(R.id.speakButton);
Context context;
context = this.getApplicationContext();
Intent Inte = new Intent(context, FallDetection.class);
context.startService(Inte);
Intent Inte1 = new Intent(context, SmsSpeaker.class);
context.startService(Inte1);
Toast toast = Toast.makeText(getApplicationContext(), "Fall Detection Started", Toast.LENGTH_LONG);
toast.show();

 wordsList = (ListView) findViewById(R.id.list);
 LinearLayout myScreen = (LinearLayout) findViewById(R.id.myscreen); 
// change LinearLayout to your framelayout if it is not a LinearLayout
//View view =(View) findViewById(R.layout.voice_recog);

//wordsList.setOnTouchListener(new View.OnTouchListener() {
 myScreen.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        Toast toast = Toast.makeText(getApplicationContext(),"Touch recognised",Toast.LENGTH_LONG);
        toast.show();
        startVoiceRecognitionActivity();
    }
}); 

截至目前，我正在使用List来重新识别触摸，但这也导致应用程序崩溃，并且未找到Source

布局xml文件如下

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:id="@+id/myscreen" 
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="vertical">

Answer 1

布局xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout  
xmlns:android="http://schemas.android.com/apk/res/android"
 android:id="@+id/myscreen"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="vertical">

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="4dip"
android:text="Click the button and start speaking" />

<Button android:id="@+id/speakButton"
android:layout_width="fill_parent"
android:onClick="speakButtonClicked"
android:layout_height="wrap_content"
android:text="Click Me!" />
<ScrollView
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="vertical">
<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="0.41" >
</ListView>
</ScrollView>
</LinearLayout>

码

public class MainActivity extends Activity
{

    private static final int REQUEST_CODE = 1234;
    private ListView wordsList;
    protected Button TextToSpeech;

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);  
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

        setContentView(R.layout.voice_recog);
        Button speakButton = (Button) findViewById(R.id.speakButton);

        Intent Inte = new Intent(this, FallDetection.class);
         startService(Inte);
        Intent Inte1 = new Intent(this, SmsSpeaker.class);
        startService(Inte1);
        Toast toast = Toast.makeText(this, "Fall Detection Started", Toast.LENGTH_LONG);
        toast.show();

        wordsList = (ListView) findViewById(R.id.list);
        LinearLayout myScreen = (LinearLayout) findViewById(R.id.myscreen); 

        myScreen.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
    // TODO Auto-generated method stub
          Toast toast = Toast.makeText(MainActivity.this,"Touch recognised",Toast.LENGTH_LONG);
         toast.show();
         startVoiceRecognitionActivity();
    }
  }); 
}