With the Preview 4 of Android N out already, Google has really polished the multi-window feature, one of the best features about Android N. Running your Youtube video in one window and having your Twitter feed running simultaneously is really good. Especially with the standard size of smartphones gradually reaching the 5-inch mark and beyond, this multi-window mode is going to be an absolute boon.
So once you smartphone gets it, here is how you can run two applications simultaneously using the Multi Window mode.
Make sure that the two applications you are want to run in the multi-window mode are live and active.
The application you want to be on the top should be active and running in full screen.
Now long press the multitasking button on the screen, which will change the nav key icon on the bottom and open the list of applications that are running in the memory.
Now select the application that you wish to run in the multi-window mode by tapping on it and you will see the two applications being stacked one below the other.
You will see a dividing border between the two applications. Simply move that up or down in order to change the window dimension.
This is a really simple way to run apps in multi-window mode and the entire process as well as the interface has been really smoothened out. The only limitation of the process is that since not all the apps support the multi-window mode, some applications may just render a little weirdly. Though we are sure as more and more time passes with the Android N update, developers will update their codes to support it.