How to unlock the screen?
That is what the designers and engineers of the different companies ask themselves. After a brainstorming session, the logical thing is that many different ideas appear, of which there are always some that win, and others that remain in the background. From time to time some of the latter manage to gain a foothold in some way and end up appearing, albeit somewhat hidden, on smartphones. This is the case of the Samsung Galaxy S6 and the Galaxy S6 Edge, which allow you to unlock the screen by drawing lines. Actually, it is about making vertical or horizontal strokes in either direction. We can create a key combining between 4 and 8 strokes of this type, so that to unlock the smartphone we will only have to draw these strokes on the screen, so that the smartphone will be able to know if we have entered the correct key depending on the strokes drawn.
How to activate it?
Samsung has not integrated this option as one of the priority options when unlocking the screen, but it is an option that we can find in Settings> Accessibility. It is clear that it is designed for people who cannot see, as it would be difficult for them to enter a numeric code on a touch screen, and even enter a pattern if they are not able to locate the different points of that pattern. The drawing with strokes can be the same or more complex, but with more facilities. We can also activate this way of unlocking the screen if we find it useful. After all, it seems more useful, for example, than facial recognition, at least currently. The future, it seems, goes through voice recognition.