uniapp调用AlarmClock.ACTION_SET_ALARM在鸿蒙上不起作用

请问在鸿蒙真机上调用设置闹钟没有反应，这个是因为鸿蒙系统不支持吗？

createTimeTask1(item){  
            var Intent = plus.android.importClass('android.content.Intent');  
            var AlarmClock = plus.android.importClass("android.provider.AlarmClock");  
            var intent = new Intent(AlarmClock.ACTION_SET_ALARM);  
            intent.putExtra(AlarmClock.EXTRA_HOUR, item['time'].getHours());  
            intent.putExtra(AlarmClock.EXTRA_MINUTES, item['time'].getMinutes());  
            intent.putExtra(AlarmClock.EXTRA_MESSAGE, item['thing']);  
            intent.putExtra(AlarmClock.EXTRA_VIBRATE, true);  
            intent.putExtra(AlarmClock.EXTRA_SKIP_UI, true);  
            intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);  
            var main = plus.android.runtimeMainActivity();  
            if (intent.resolveActivity(main.getPackageManager()) != null) {  
                main.startActivity(intent);  
            }  
        }