Instant Run with Preview
Run instantly without a build and switch devices and themes
1 min read
The most powerful thing about Layerz is that there is no build. No compiling, no waiting, no exporting to another tool. The moment you design, it is already running.
Running
Tapping the Preview button in the top-right of the editor immediately runs the Page set as the app's Starting Point.
The Starting Point is the screen shown when the app first launches. In the Page list, long-press a Page or swipe it to the right and choose Make Starting Point to make it the Starting Point.
Switching Devices and Themes
During Preview, you can switch between iPhone, iPad, and Mac devices and instantly change the Light/Dark theme too. You can immediately see how a single project looks across every device and theme.
It Behaves Like a Real App
Preview is not just a static visual preview. Data binding, Action Flow, and API calls all actually work. Buttons respond when tapped, the UI refreshes when data changes, and APIs load real data.
What you see inside Layerz is not a preview of the app — it is the app itself, running.