如何从iPad中的应用程序调整设备的亮度 [英] How to adjust the brightness of the device from our app in iPad

问题描述

我正在为iPad开发一个电子书阅读器应用程序，我想添加一个功能，用户可以在该应用程序中调整设备的亮度。无论如何我可以在我的应用程序中实现这个.. ???

I am developing a eBook reader app for iPad and i want to add a feature where in the user can adjust the brightness of the device from the app. Is there anyway in which i can implement this in my app..???

推荐答案

我找到了一个简单的解决方案。我在我的图书阅读器视图中添加了一个清晰的颜色，我在滑块值更改事件时增加了此视图的alpha分量。通过这样做，我的视图变暗，我们感觉应用程序的亮度降低了。这个解决方案可能不太合适，但在我的情况下工作得很好。任何更好的解决方案总是受到赞赏。谢谢...

I found rather a simple solution for it. I am adding a UIVIew of clear color to my book reader view and i am increasing the alpha component of this view upon the slider value changed event. By doing this , my view gets darkened and we get a feeling that the brightness of the app is reduced.. This solution may not be very appropriate, but works just fine in my case. Any better solutions are always appreciated.Thank you...

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