In this project, we’ll learn about prototyping and the power of smart animate.

To do so, let’s build a simple photo gallery app. The gallery app has three images. Clicking an image opens an expanded view so you can view the image full screen. From the expanded view, you can click Back to bring you back to the gallery view. This project will be a low-fidelity mockup—we’ll focus more on building interactive elements to show how the app works, and less on design and style.

Create a wireframe with frames, shapes, and text

To start, we’ll use the following objects for our wireframe:

• Two frames, one for a gallery view page and one for an expanded view page
• Squares and rectangles with image fills
• Text layers for the back button

Create a file

Let’s begin by creating a new design file.

1. Log in to your Figma account from figma.com.
2. From the file browser, click Drafts.
3. Click New design file.

Set up frames

Let’s add the gallery view frame in our file.

1. Click the Frame icon from the toolbar or press F.
2. From the Design panel on the right sidebar, select the iPhone 14 & 15 Pro preset size.

Let’s rename the frame to make it more descriptive.

1. Hover over the frame you just created on canvas, and double-click on the name of the frame.
2. Rename the frame gallery-view and press return (Mac) or enter (Windows).

Now let’s make another frame for the expanded view. It will have the same size as the gallery view, so we can create the new frame by duplicating the existing frame.

1. Select the gallery-view frame, and press Command + D (Mac) or Control + D (Windows) to duplicate.
2. Rename the new frame to expanded-view and press return (Mac) or enter (Windows).

Add squares and image fills

Now let’s add images in the gallery view frame. You will need to have the images downloaded to your computer to upload them. For our example, we have prepared three plant images to upload.

Let’s create a square in the gallery-view frame.

1. Select the Rectangle tool or press R.
2. While holding Shift on the keyboard, click and drag on the gallery-view frame to create a square with a width of 200 and height of 200. You can use the Width and Height fields in the right sidebar to view and adjust pixel values.
   Tip: Holding Shift while creating a shape will constrain the proportion of the shape, which keeps the width and height the same.
3. Let’s align the square to the center of the frame. We’ll click and drag the square towards the center of the frame until we see a red line appear on the frame, indicating the square is center-aligned to the frame.

Then add an image to the square as a fill:

1. With the square selected, click on the Fill swatch in the right sidebar to open the color picker.
2. Select Image from the panel.
3. A placeholder image of black and white checks will be applied to the shape. Hover over the preview image, click Swap image and Upload new.
4. Select the first image you want to upload from your computer and click Open to apply.

The image will be added to your shape as a fill.

Duplicate to add more squares

Now let’s add two more squares by duplicating the first square.

1. Select the square, and press Command + D (Mac) or Control + D (Windows) to duplicate.
2. The new square is placed directly on top of the first rectangle. Click and drag the second rectangle to the middle of the frame.
3. Then, duplicate the square again by pressing Command + D (Mac) or Control + D (Windows).

Replace image fills

Now that we have three identical images inside the frame, we need to replace two of them. Like adding an image, we can replace an image from the Fill swatch.

1. Select the second image, and click on the Fill swatch in the right sidebar to open the color picker.
2. Select the image from the panel.
3. Hover over the image preview, click Swap image button and select Upload new.
4. Select the second image from your computer and click Open to apply it as a new fill.

Nice! We’ll do the same for the third image. When you’re done, you should have your low-fidelity photo gallery design with three different images:

Add text

Now that the gallery-view frame is done, let’s move on to the next frame. We’ll add a back button in the expanded-view frame.

1. Select the  Text tool from the toolbar, or press T.
2. Click on the top left of the expanded-view frame and type “Back”.
3. With the text layer selected, set text size to 24 and change its weight to Semi Bold.

Nice!

Add a rectangle for expanded view

Now, let’s mock up the expanded view of our photo gallery app. We want this to show a bigger version of the image if a user selects it.

First, we’ll create the basic structure of the expanded-view design by adding a rectangle.

1. Select the Rectangle tool or press R and click inside the expanded-view frame.
2. Use the Width and Height fields in the Layout section to enter in pixel values for the shape. We’ve set the width of our rectangle to 393, and the height to 700.
3. Arrange the rectangle underneath the back button and align it to the center of the frame.

Duplicate frame

Since we need an expanded view frame for each image, let’s duplicate the frame we just made so we have three expanded-view frames in total.

1. Select the expanded-view frame, and press Command + D (Mac) or Control + D (Windows) to duplicate.
2. Repeat the command again so that we have three expanded-view frames.
3. Let’s rename the frames to expanded-view-1, expanded-view-2, and expanded-view-3 accordingly.

Copy image fills

We already have images added for the gallery view, but now we need to add those same images to the expanded view frames. We can do that by copying the image fills from the squares in the gallery-view frame:

1. Select the first image from the gallery-view frame.
2. In the Fill section of the right sidebar, select the area just to the left of the image preview.
3. Copy the fill using the keyboard shortcut:
   • Mac: Command + C
   • Windows: Control + C
4. Then, select the rectangle in expanded-view-1 frame and paste the image fill using the keyboard shortcut:
   • Mac: Command + V
   • Windows: Control + V

Nice! Now let’s repeat the steps and add the rest of the images. When you’re done, your design should look something like this:

Rename layers in bulk

It’s almost time to add prototype interactions! Before we can start prototyping, let’s take a moment to rename our layers—matching layer names will be important for our prototyping interactions.

Each image on the gallery-view frame should have the same name as it’s matching image on the expanded-view frames. We can rename them together using the bulk renaming feature.

1. While holding Shift on the keyboard, select the first image in the gallery-view frame and the image in expanded-view-1 frame.
2. Press Command + R (Mac) or Control + R (Windows) to open the rename layer modal.
3. In the modal, enter "image-1" in the Rename to input field.
4. Click the Rename button to confirm the change.

Great! Now let’s repeat the steps for the rest of the images.

We’ll rename the second image in gallery-view frame and the image in expanded-view-2 frame to image-2, and the third image in gallery-view frame and the image in expanded-view-3 frame to image-3.

Add prototyping

We’ve finished creating a wireframe for our gallery. Now let’s add prototyping interactions.

When a user clicks on an image in the gallery-view frame, it will direct us to its expanded-view frame accordingly. Clicking on the back button will redirect us back to the gallery-view frame.

Let’s see how we can do that.

First, we’ll add a connection between image-1 in the gallery-view frame to the expanded-view-1 frame.

1. Switch to prototype mode using the Shift + E keyboard shortcut, or by clicking the Prototype tab in the right sidebar.
2. Hover over the image-1 layer in the gallery-view frame.
3. Click the blue plus sign on the edge of the button, then drag the connection to expanded-view-1 frame. This opens up the Interaction details modal.
4. From the dropdown menu, set the trigger to On click.
5. Set the action to Navigate to. From the dropdown menu, set the destination to expanded-view-1 frame.
6. From the Animations dropdown menu, select Smart Animate.

Smart animate looks for matching layers that exist across multiple frames. Figma takes into account both the layer's name and where it sits within the hierarchy. Since we have renamed our image layers previously, we’re able to create smooth transitions when we are moving across frames.

Learn more about smart animate →

Let’s repeat the actions for image-2 and image-3 in the gallery-view frame accordingly. When you’re done, you should have image-2 in the gallery-view frame to the expanded-view-2 frame, and image-3 in the gallery-view frame to the expanded-view-3 frame.

Awesome! Now we want to add the connection from the back button to gallery-view frame.

1. Switch to Prototype mode using the Shift + E keyboard shortcut.
2. While holding Shift on the keyboard, select the back buttons in all the expanded view frames.
3. Click the blue plus sign on the edge of the selection, then drag a connection to the gallery-view frame.
4. In the Interaction details modal, set the trigger to On click.
5. Set the action to Navigate to. From the dropdown menu, set the destination to gallery-view frame.
6. From the Animations dropdown menu, select Smart Animate.

Once you’re done, close the Interaction details modal. Press the Present button to test it out.

Congratulations, you’re all done!