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问题描述
我想知道当设备电池电量非常低时,如何在我的应用程序委派中收到警告。
解决方案
您可以使用 UIDevice
的电池电量属性。如果电池电量低于5%,则显示警报。您可以定期轮询应用程式委托中的电池电量。
UIDevice * myDevice = [UIDevice currentDevice];
[myDevice setBatteryMonitoringEnabled:YES];
float batteryLevel = [myDevice batteryLevel];
:
I want to know how can i get warning in my app delegate when the device battery power is very low. So that i can pause the running game.
Any idea?
解决方案
You could use the battery level property from UIDevice
. If the battery level is less than 5% show an alert for example. You could poll periodically for the battery level in your app delegate for example.
UIDevice *myDevice = [UIDevice currentDevice];
[myDevice setBatteryMonitoringEnabled:YES];
float batteryLevel = [myDevice batteryLevel];
Explanation from the docs:
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