读取iPhone的环境光传感器 [英] Reading the iPhone's Ambient Light sensor

问题描述

我在iPhone上注意到，在阳光直射几秒钟后，屏幕会调整为变亮，变暗等.我在想是否可以与该传感器进行交互?

I notice on my iPhone, after a few seconds of being in direct sun light, the screen will adjust to become brighter, dimmer etc. I was wondering if there was a way to interact with this sensor?

我有一个在外面使用的应用程序.当您进入直射光下时，在调整之前，很难看到屏幕上的一些弯折.即使那样，它也不总是像我想要的那样明亮.我想在户外观看时使用高对比度的皮肤，而在室内观看时使用低对比度的皮肤.

I have an application which is used outside. When you go into direct light, it becomes very difficult to see the screen for a few momments, before it adjusts. And even then, it's not always as bright as I'd like it to be. I would like to implement a high contrast skin for outdoor viewing, and a low contrast for indoor viewing.

是否可以读取光传感器数据，如果可以，如何提取这些传感器值?

Is this possible to read light sensor data, and if so, how do I extract these sensor values?

但是我认为有一个光传感器，因为相机知道何时使用闪光灯.

I would assume there is a light sensor however, as the camera knows when to use the flash.

推荐答案

尝试使用需要<GraphicsServices/GraphicsServices.h>的GSEventSetBacklightLevel();.这就是可以通过编程方式调整亮度级别的方式.还有一个get选项，所以我认为可能包含您所需要的信息.

Try using GSEventSetBacklightLevel();, which requires <GraphicsServices/GraphicsServices.h>. This is how one can programmatically adjust the brightness levels. There is also a get option, so I think that may have the information you're after.

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