For greater control over how auto-focus works on your iOS 7 device, you might be interested in trying out a new free jailbreak tweak called SwitchAutofocus by iOS developer PoomSmart.

This tweak basically lets you manually configure a few options for how auto-focus works on your device. You can configure auto-focus to remain at its default configurations (where the yellow bounding box appears and the device auto-focuses for you), you can choose to hide the bounding box but let the device still automatically focus for you, or you can completely disable auto-focus completely.

The tweak adds a preferences pane to the Settings application where you can configure the various options:

Here, you can enable or disable the tweak on demand, choose to force the Camera application to notify you of what mode you're in when the camera starts up (shown in the first image in this review), and you can configure whether you want the tweak to be set to default mode, hide mode, or disable mode.

When you're in default mode, everything works how it normally would. When you're in hide mode, the auto-focus bounding box is hidden, but the camera will still auto-focus when you move it around. When you're in disabled mode, the auto focus can be enabled or disabled by tapping with two fingers on the camera preview view.

If you want to give this tweak a try for your auto-focus needs, it's available for free right now in Cydia's BigBoss repository. The tweak is compatible with both iOS 6 and iOS 7 devices.

Name: SwitchAutofocus
Price: FREE
Version: 1.0-1
Requirements: iOS 6.1+
Tested on: iPhone 5 running iOS 7.1.2
Repo: BigBoss
Developer: PoomSmart
Editor's Rating:  5/5