由网友(少女の季节)分享简介：我写一个简单的小部件为Android设备。当用户preSS上的小窗口的摄像头手电筒必须关闭和开启。我的窗口小部件工作正常，当我启动它在索尼爱立信弧形，但是当我尝试推出小部件的的三星NexusS 的或的三星Galaxy SII 是的做什么（不工作）的 I am writing a simple Widget for...

我写一个简单的小部件为Android设备。当用户preSS上的小窗口的摄像头手电筒必须关闭和开启。我的窗口小部件工作正常，当我启动它在索尼爱立信弧形，但是当我尝试推出小部件的的三星NexusS 的或的三星Galaxy SII 是的做什么（不工作）的

I am writing a simple Widget for Android Devices. When user press on the widget a Camera Flashlight must turn Off and On. My Widget works fine when I launch it on Sony Ericsson Arc, but when I try to launch Widget on Samsung NexusS or Samsung Galaxy SII it do nothing (doesn't work).

我谷歌这个问题，并找到一些答案吧。大多数的用户建议使用SurfaceView，真正表面观与大小1像素，如果它被放置在活动真正发挥作用，但 它不能在我的情况下工作（小部件不支持SurfaceViw） 。

I google this issue and find some answers for it. Most of users suggest to use SurfaceView and really surface view with size 1 pixel really work if it is placed on activity, but it doesn't work in my case (Widget doesn't support SurfaceViw).

LED手电筒Galaxy Nexus的控制由什么API？

我发现这篇文章，这是非常有用的，但我怎么能在我的情况下使用它，在这种情况，如果我想打开光部件？我知道，因为它还不支持，任何想法，我不能用表面视图控件视图？

I found this article and it was very useful, but how can I use it in my case, in the case if I want turn on light from widget ? I know that I can't use Surface view in Widget View as it is not supported yet, any Ideas ?

请给我提供一些链接，开源项目或物品或东西，可以是对如何我可以把灯开/关从Nexus S的一和Galaxy S II的部件有帮助的。

Please provide me some links, open source projects or articles or something that can be helpful on how I can turn light on/off from the widget on Nexus S One and Galaxy S II.

有没有普遍的code与相机不同的手机工作？任何信息都将是有益的。

Is there any universal code for working with camera on different phones ? Any information will be helpful.

也许我需要用本机库？

Maybe I need to use native library ?

感谢。

推荐答案

目前没有官方Android API，让您独自操作相机闪光灯。您可以通过官方的摄像头API去 - 它并没有正式定义如何操纵闪光灯LED。您可以设置不同的模式，但摄像头的软件可以随意忽略它。

There is no official android API allowing you to manipulate camera flash alone. You have to go via official camera API - and it does not formally define how to manipulate flash LED. YOu can set different modes, but camera software can ignore it at will.

所以，如果这个工程上索尼它不必vork其他硬件。有可能是（和最有可能有）尽管一些厂商特定的无证的API。

So, if this works on sony it does not have to vork for other hardware. There could be (and most probably there are) some vendor specific undocumented APIs though.