獲取運行的activity的名字

    /**
     * @param context
     * @return
     */
    public static String getRunningActivityName(Context context) {

        ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
        String runningActivity = activityManager.getRunningTasks(1).get(0).topActivity.getClassName();
        return runningActivity;
    }