How to Create Custom InfoWindows with Square Corners in Google Maps?

Creating Custom InfoWindows in Google Maps

The default Google Maps InfoWindow, which appears when a map marker is clicked, often features rounded corners. However, you may desire a more customized InfoWindow with square corners. This article provides guidance on achieving this customization.

Using JavaScript Libraries

External JavaScript libraries offer robust solutions for creating custom InfoWindows. One popular option is the Google Maps Info Bubble library. It allows you to modify the appearance, shape, and content of InfoWindows to suit your specific requirements.

Example Implementation

The following code snippet demonstrates how to implement a custom InfoWindow using the Info Bubble library:

<code class="js">const infoBubble = new google.maps.InfoWindowBubble({
  maxWidth: 300, // Maximum width of the InfoWindow
  maxHeight: 200, // Maximum height of the InfoWindow
  arrowPosition: 50, // Offset of the arrow from the center of the InfoWindow
  padding: 10, // Padding around the content of the InfoWindow
  borderWidth: 1, // Border width around the InfoWindow
  borderColor: "#000000", // Border color of the InfoWindow
  backgroundColor: "#FFFFFF", // Background color of the InfoWindow
  hideCloseButton: true, // Hide the close button on the InfoWindow
  borderRadius: 0, // Set the border radius to 0 for square corners
});

// Attach the custom InfoWindow to a map marker
const marker = new google.maps.Marker({
  position: {
    lat: 0,
    lng: 0,
  },
  map,
});
marker.addListener("click", () => {
  infoBubble.setContent("This is a custom InfoWindow.");
  infoBubble.open(map, marker);
});</code>

This example creates a square-cornered InfoWindow with a maximum size of 300px wide and 200px high. It has a black border, white background, and no visible close button.

Alternatives

If the Info Bubble library does not meet your needs, consider exploring other options such as the MarkerClusterer library or the DataLayer library. Both provide flexible solutions for customizing InfoWindows and enhancing your Google Maps experience.

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