Have you used Smart Taskbar (sidebar) Android app? Here is anther similar app for your Android Smartphone, SwipePad is a launcher panel responding to a swipe on the edge of your phone screen, no matter what application you are in.
1. Touch down the bottom edge of the screen;
2. Move your finger towards the center of the screen so the pad will emerge;
3. Release your finger on a specific slot to action.
Hold your finger on a specific slot for 2 seconds before releasing (until it turns orange), then you could change the assignment.
SwipePad Beta was developed for Android by Conduction.mobi
Package name : mobi.conduction.swipepad.android.apk
File size: 83KB