Two apps at the same time in multi-window
No, with this trick you will not get two applications to be seen on the screen simultaneously. You’ll see, but that’s actually a feature that’s already built into Android 7.0 Nougat. However, to be able to see two apps on the screen at the same time, first you have to run one application, and then you have to run the other in mode multi-window. It is not a complex process, but we can facilitate it and make it even easier thanks to the Screens application, with which we can run these two applications at the same time so that they are launched on the screen at the same time.
The idea is really simple. Instead of launching a single application when we click on the icon, two apps are launched simultaneously. One takes up half the screen, and the other takes up the other half. The only thing necessary is that Screens, which is our app in question, is responsible for creating icons that when clicked, run the two applications, instead of one. That is not complex at all, and in fact, we already have many similar possibilities, since in many cases it is possible to create shortcuts on the desktop to certain functions of an application. Just as the shortcuts take us, for example, to a WhatsApp conversation, or to the writing of a new email in Gmail, they can also run two apps simultaneously so that we can see them on the screen at the same time.
Of course, it will be necessary to have a mobile that is compatible with the function Multi-window, how will those who have Android 7.0 Nougat.