Android accessibility service Talkback Running Check

AccessibilityManager 를 얻어와 사용중인 서비스  Id중에 com.google.android.marvin.talkback 가 있는지 확인 하여 체크

 public Boolean isTalkbackRunning(Context context){

        String TALKBACK_PACKAGE_NAME = "com.google.android.marvin.talkback";

        AccessibilityManager manager = (AccessibilityManager)context.getSystemService(Context.ACCESSIBILITY_SERVICE);

        if (manager == null){

            return false;

        }

        boolean isTalkbackRunning = false;

        try {

            List<AccessibilityServiceInfo> services = manager.getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_SPOKEN);

            for (AccessibilityServiceInfo service : services) {

                if (service.getId().contains(TALKBACK_PACKAGE_NAME)){

                    isTalkbackRunning = true;

                }

            }

        } catch (NullPointerException npe) {

            npe.printStackTrace();

            return isTalkbackRunning;

            // getEnabledAccessibilityServiceList() can throw an NPE due to a bad

            // AccessibilityService.

        }

        return isTalkbackRunning;

    }

참고 : https://chromium.googlesource.com/chromium/src.git/+/76ef458065798bc70114854cf4b51827005448a1/chrome/android/java/src/org/chromium/chrome/browser/AccessibilityUtil.java