Opening Flashlight of Galaxy Nexus

Question

I am developing an app which needs to open the flashlight of my Galaxy Nexus device. I have referred to the post here

LED flashlight on Galaxy Nexus controllable by

Answer 1

You need to add this tag in manifest file.

<uses-feature android:name="android.hardware.camera.flash"/>

Answer 2

you must to set call back mHolder.addCallback(this);

Answer 3

Try to add :

android:name="android.permission.FLASHLIGHT"
android:name="android.hardware.camera.flash

And look this post : How to turn on camera flash light programmatically in Android?