Floating Camera is an excellent solution for those who require a camera in front of any other active app. This app creates a multi-window camera in front of any other active app, allowing you to take pictures or record videos without leaving the current app. The app works on Android 4.0 or better and is completely free, with no ads.

With Floating Camera, you can select the front or back camera if available on your device. The camera can be moved anywhere on the display by dragging and dropping. The app works in both portrait and landscape mode. You can also resize the preview window and select the photo resolution.

One of the best features of Floating Camera is that the camera preview window always stays on top of your screen. You can even stop the camera via notification without using the "manager screen" (Quit Webcam). Additionally, you can configure Floating Camera to take pictures in automatic mode every X seconds/minutes.

With Floating Camera, you can upload your taken pictures to your webspace via webservice. Furthermore, you can configure the app to take a photo only if something on the picture has changed, which is useful for remote monitoring.

Overall, Floating Camera is a real working multi-window camera app that is perfect for those who need to use a camera while using other apps.