数据监控实时显示

199605109

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我有一个类似的json文件   我要每秒去取这个json的变化，并实时显示   用超级列表框吗?    每秒监测的话  一直插入表项的话   等下监测一天下来  列表框是不是很大了？怎么样保证只实时显示20项或者20项以下的内容    这个json  有时候只有10项  最高不超过20项

钥匙key

123.e (187 KB, 下载次数: 31)

2023-5-20 10:24 上传

点击文件名下载附件
抢购呀。。那就要注意一下线程安全了。显示是显示，抢购是抢购。后续自己在优化一下分离就OK了。。

Suky

用超列的话  插入完成后   再根据表项数删除前面的部分表项
例如   想保留显示20项，就每次获取结果后直接在最后插入表项
然后取表项数减去20    得到的值大于0   删除超列前面这个数量的表项

199605109

Suky 发表于 2023-5-20 09:53
用超列的话  插入完成后   再根据表项数删除前面的部分表项
例如   想保留显示20项，就每次获取结果后直接 ...

我是有10项就显示10   有20就显示20  有8就显示8  

拿铁777

会超列或高级表格操作的话，都会很简单就可以搞掂的。

老男孩0001

插入一次就行了，后面更新内容就可以了

Y罢不能

清空超级列表框，然后写入数据，如此循环。也无须判断之前数据是啥。

199605109

老男孩0001 发表于 2023-5-20 10:07
插入一次就行了，后面更新内容就可以了

假如前面插了20项，  后面的数据只有8项了   那前面12项的内容还显示在上面。。。

Y罢不能

Y罢不能 发表于 2023-5-20 10:07
清空超级列表框，然后写入数据，如此循环。也无须判断之前数据是啥。

最好的办法是，一个循环，后台每秒读取网络数据，然后记录到本地，然后再写一个循环，读取本地数据，显示到UI上。

199605109

Y罢不能 发表于 2023-5-20 10:07
清空超级列表框，然后写入数据，如此循环。也无须判断之前数据是啥。

清空再写，会不会秒显不出来？或者说是来回闪烁