The following code shows you how you can create responsive images with HTML and CSS. So best practice is to use responsive images, which means that you provide three versions of your image and tell your browser, when to use which one. As described in the HTML specification you can also use a srcset attribute to indicate different versions of your image and their respective width. None of your visitors wants to wait longer than 3 seconds for a web page. And this will make a difference in waiting to load a web page on a mobile phone between 2 or 3 seconds and waiting for 10-30 seconds depending on your internet access. If you don't really bother the image is a little bit cropped, you can use cover mode with a fixed height as well: ( ) Let’s discuss a couple of layout schemes: A two-column image layout and a three-column image layout. To have images automatically resize, select the image > Change Size > enter auto in the Width and Height fields. Resolution-independent, because we want to be able to create a single document and deliver it to the ever-growing plethora of web-enabled devices. In case the ratio is not the same, dynamically change the 9 / 16 by the ratio for each different image. You will have to take care of those actions as well if you support multiple orientations. Responsive images Images in Bootstrap are made responsive with. Note: When using an implementation like this, your image will not automatically resize when rotating your device, using split screen, etc. The width equals device width, so: const dimensions = Dimensions.get('window') Ĭonst imageHeight = Math.round(dimensions.width * 9 / 16) For example, if the ratio is always 16x9, the height is 9/16th of the width of the image. In case the image is always the same, you can use Dimensions.get('window').width to calculate the size the image should be. You should always add a height and width on an image in React Native. Don't add flex: 1, because that will fill the image to its parent, which is not desired in this case. The image is vertically centered, because you added flex: 1 to the style property.
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