Get command Google now in my app

Question

I would like to get back results in a variable of type String. The contents of what the user tells his smartphone via Google now that is: "OK google claptrap " I would like to do this so I could get back 'claptrap'. I have already searched but have been unsuccessful. I found how to return my selectable application in Google now like, for example write a note in my app but in this case the person has to say " OK google note at me claptrap " so that I can get back claptrap. It is not proceeding well … I am pretty sure that it is possible because the app "commandr" already makes it for commands as "turn on the torch".

Excuse my bad english.

Thank you in advance Good evening :D

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i have create a AccessibilityService for get command google now but i should touch editText for receive the command. Help me please

public class NotificationService extends AccessibilityService {
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
    System.out.println("******onAccessibilityEvent*******");
    if(event.getEventType() == AccessibilityEvent.TYPE_VIEW_FOCUSED || event.getEventType() == AccessibilityEvent.TYPE_WINDOWS_CHANGED) {
        System.out.println(" NAME : " + event.getClassName());
        System.out.println(" NAME PCK : " + event.getPackageName());
        System.out.println(" SOURCE : " + event.getSource());
        System.out.println(" TEXT : " + event.getText());
    }
}

private String RecupCommandGoogle(AccessibilityEvent mEvent, AccessibilityNodeInfo mSource) {
    if (mSource != null & mEvent.getClassName().equals("android.view.View")) {
        return String.valueOf(mSource.performAction(AccessibilityNodeInfo.ACTION_SELECT));
    }
    return null;
}

@Override
protected void onServiceConnected() {
    System.out.println("onServiceConnected");
    AccessibilityServiceInfo info = new AccessibilityServiceInfo();
    info.eventTypes = AccessibilityEvent.TYPE_WINDOWS_CHANGED | AccessibilityEvent.TYPE_VIEW_FOCUSED ;
    info.packageNames = new String[] {"com.google.android.launcher" , "com.google.android.googlequicksearchbox"};
    info.feedbackType = AccessibilityEvent.TYPES_ALL_MASK;
    info.notificationTimeout = 100;
    setServiceInfo(info);
}

@Override
public void onInterrupt() {
    System.out.println("onInterrupt");
}

}