CheckCTA

private static boolean needToCheckCTA() {
        boolean result = false;
        Class<?> mClassType = null;
        Method mGetIntMethod = null;
        try {
            mClassType = Class.forName("android.os.SystemProperties");
            mGetIntMethod = mClassType.getDeclaredMethod("getInt", String.class, int.class);
            Integer v;
            try {
                v = (Integer) mGetIntMethod.invoke(mClassType, "persist.sys.cta.security", 0);
                result = v.intValue() == 1 ? true : false;
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (InvocationTargetException e) {
                e.printStackTrace();
            }
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
        return result;
    }