What can we do if phone manufacturers forget to include a physical camera button? “Make” one ourselves, of course! A mod we’ve covered did so on the Sony Xperia Z by substituting the volume buttons as a physical camera button, which allowed for quick launch of the camera as well as fast image capture.
Well, now HTC One users can enjoy this function as well, as XDA Senior Member Matt has created a mod allowing for the volume buttons to act as a physical camera button. The mod is based on the latest version of the Camera.apk and will work with any deodexed Sense-based ROM. Rapid shooting can also be activated by holding down the volume button. Three variants of the mod are made available, them being:
All three variants are compatible with devices running Android version 4.2.2, while those running Android 4.1.2 will only receive the first variant. If you’d like to reverse the effects of the mod, you can do so by flashing the provided zip file.
To learn more, be sure to check out the original thread for more details._________