![]() This prop can also contain several remote URLs, specified together with their width and height and potentially with scale/other URI arguments. The image source (either a remote URL or a local file resource). If the image is larger than the view, scale it down uniformly so that it is contained in the view.Įnum( 'cover', 'contain', 'stretch', 'repeat', 'center') The image will keep its size and aspect ratio, unless it is larger than the view, in which case it will be scaled down uniformly so that it is contained in the view.Ĭenter: Center the image in the view along both dimensions. Repeat: Repeat the image to cover the frame of the view. Stretch: Scale width and height independently, This may change the aspect ratio of the src. at least one dimension of the scaled image will be equal to the corresponding dimension of the view (minus padding)Ĭontain: Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image will be equal to or less than the corresponding dimension of the view (minus padding).both dimensions (width and height) of the image will be equal to or larger than the corresponding dimension of the view (minus padding).Defaults to cover.Ĭover: Scale the image uniformly (maintain the image's aspect ratio) so that TypeĮnum( 'no-referrer', 'no-referrer-when-downgrade', 'origin', 'origin-when-cross-origin', 'same-origin', 'strict-origin', 'strict-origin-when-cross-origin', 'unsafe-url')ĭetermines how to resize the image when the frame doesn't match the raw image dimensions. Works similar to referrerpolicy attribute in HTML. Sets the value for Referrer-Policy header in the image request. TypeĪ string indicating which referrer to use when fetching the resource. More details about resize and scale can be found at. It should also be used if the image is slightly bigger than the view. This should be used if the image is smaller than the view. Compared to resize, scale is faster (usually hardware accelerated) and produces higher quality images. Scale: The image gets drawn downscaled or upscaled. This should be used instead of scale when the image is much larger than the view. Resize: A software operation which changes the encoded image in memory before it gets decoded. Defaults to auto.Īuto: Use heuristics to pick between resize and scale. Make sure to check the encoder's documentation to confirm the expected data format.The mechanism that should be used to resize the image when the image's dimensions differ from the image view's dimensions. In other cases, you will have to provide raw byte data. Some libraries use a default image class (for example, the Swift implementation uses UIImage). Once you have the encoder, you will need to obtain a representation of the image. The key step is to locate an encoder for your chosen language, which can often be found in the woltapp/blurhash repository. The process of generating a blurhash can be accomplished in various languages and server technologies, similar to the one using JavaScript. A value of 9 will give the best results but may take longer to generate the hash. However, they must be within the range of 1 to 9 and have an aspect ratio similar to the uploaded image. These values can be calculated or hard-coded on the server or specified by the user. height, componentX, componentY ) Īdditionally, the request can include two parameters: componentX and componentY, are passed through the algorithm. ![]() Placeholder= ) const blurhash = encode (data, info. 'scale-down' - The image is sized as if none or contain were specified, whichever would result in a smaller concrete image size.Ī string used to generate the image placeholder. When specified, the exact position can be controlled with contentPosition prop. 'none' - The image is not resized and is centered by default. If necessary, the image will be stretched or squished to fit. 'fill' - The image is sized to entirely fill the container box. 'contain' - The image is scaled down or up to maintain its aspect ratio while fitting within the container box. If the image's aspect ratio does not match the aspect ratio of its box, then the object will be clipped to fit. 'cover' - The image is sized to maintain its aspect ratio while filling the container box. In a variety of ways such as "preserve that aspect ratio" or "stretch up and take up as much space as possible". This property tells the image to fill the container Default: 'cover'ĭetermines how the image should be resized to fit its container.
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