Air View is disabled in the settings
The simplest cause could be that you have disabled the 'Air View' in the settings of your Android. They enable the Air View for your S4:
- You go to the main menu of your Android, and click the Gear to access the settings.
- Now tap on the tab "My device".
- Here you will find the entry "Air View". Make sure that the Controller is set to "a". This is indicated by the fact that he is highlighted and pushed to the right. Tap the Slider to the Air View to turn on.
- The Air View set for the individual applications, tap left next to the Knob to "Air View". Make sure that all applications are marked with a hook.

Air View to enable
Air View not supported by your gesture in General
Air View doesn't support all the applications on your S4. How you can activate the Air View for each of the applications and disable, see you at the top of the fourth point. The following apps work with Air View:
- Websites-Magnification
- Progress bar
- Preview in the gallery
- Preview of messages
- Preview in the S Planner
- Speed dial preview
Screen protector interfere with Air View
In rare cases, the Problem arises that the Air View works with certain display slides one hundred percent accurate. If you have enabled both the Air View, as well as the corresponding applications, but the Air View depends on it still radio, you should pull your foil on a trial basis. At this point, a high sensitivity to touch could help. You can activate these in the settings in the "display".
For this practice tip, a Samsung Galaxy S4 with Android 4.2.2. How to make your battery life with the S4 can extend, you can learn here.