安卓：闪光灯光线如何检查可用的设备？ [英] Android: how to check the flash light is available on device?

问题描述

我如何检查闪光灯可在设备上？也想知道我怎么可以开/关的闪光灯？
  我已经把code，但不是现在的工作？
  我搜索出这个

        <一href=\"http://grep$c$c.com/file/repository.grep$c$c.com/java/ext/com.google.android/android/2.2_r1.1/com/android/server/LightsService.java#LightsService\" rel=\"nofollow\">http://gitorious.org/rowboat/frameworks-base/commit/eb9cbb8fdddf4c887004b20b504083035d57a15f

<一href=\"http://grep$c$c.com/file/repository.grep$c$c.com/java/ext/com.google.android/android/2.2_r1.1/com/android/server/LightsService.java#LightsService\" rel=\"nofollow\">http://grep$c$c.com/file/repository.grep$c$c.com/java/ext/com.google.android/android/2.2_r1.1/com/android/server/LightsService.java#LightsService

How I check the flash light available on device?also want to know how can I On/Off the flash light? I have put the code but not working right now? I search out this
http://gitorious.org/rowboat/frameworks-base/commit/eb9cbb8fdddf4c887004b20b504083035d57a15f
http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.2_r1.1/com/android/server/LightsService.java#LightsService

请告诉我应该使用？

谢谢。

Please can tell which I should use?
Thank You.

推荐答案

您可以使用以下

context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);

如果闪存可用，否则为false，将返回true。

which will return true if a flash is available, false if not.

请参阅http://developer.android.com/reference/android/content/pm/PackageManager.html了解更多信息。

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