我们有一个信使,定期对数据进行投票,并更新显示。 投票由背景线索进行。 不幸的是,这种背景不断发生,即使我们的用心被抹去,或者当装置被锁锁定时,这导致不必要的网络活动和CPU/批量使用。
因此,我要改变这样的说法,即它将暂停在这些情况下的投票活动:
如何最容易地发现这种说法是否在这两个国家?
注:该评估有几项活动,因此,我认为这简而言之,只是追踪活动生命周期。 我必须增加每项活动的代码,以追踪我的活动是否在地下。 如果这是我需要做的,我就这样做了,但我希望这样做更为简单。
这些是一些相关的问题,但似乎没有提供很好的答案:
如何最容易地发现这种说法是否在这两个国家?
For the are-we-in-the-foreground issue, increment a reference count in a static data member in onStart() of each activity, and decrement it in onStop(). If onStop() sees 0, stop the polling. If onStart() sees that you re not polling, start polling.
For the is-the-screen-locked issue, don t worry about it. The device will fall asleep once the screen times out and your polling thread will not be running. Besides, I think your activity will be stopped in this case anyway.
BTW,这是以下情形之一:onStop(>> 是正确的答案,而不是onPause(),这样,,你的活动之间的寿命周期交割。
如果这是我需要做的,我就这样做了,但我希望这样做更为简单。
这很简单。
我的直言说,你重新思考这一错误。 你们有权认为,如果没有必要,你需要削减投票量,但选举方式根本上如何? 你们可以使用一种推力模式(见长期投票或Androidou To Equipment Messaging)。 如果你进行这种投票以控制辛迪加的资源,你也不妨检查 and。 摘录
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