To hide the status bar in a phonegap project:
- Double click on your project, or .plist, in XCode
- Select the tab named "Info"
- Add a new property by selecting an item in the list and then clicking the plus sign
- Name the property "View controller-based status bar appearance"
- Set the property value to "NO"
- Select the tab named general
- Check the "Hide status bar" located under "Deployment Info"