Android.widget.ImageView

lastmod 2018-08-17created 2016-10-143 edits

ImageView-related Layout XML attributes

The attributes available in Layout XML are listed below.

android:adjustViewBounds: Whether to resize the image view to preserve the image's aspect ratio.
android:cropToPadding: Whether to crop the image to fit the padding.
android:maxHeight: Maximum height of the image (defaults to the original image size).
android:maxWidth: Maximum width of the image (defaults to the original image size).
android:scaleType: Specifies the scaling-up/down algorithm to apply when displaying the image at a size different from its original.
android:tint: Tints the image (coloring). Usually a semi-transparent color is specified to give the effect of a light wash of color over the image.

The ScaleType values and their meanings are summarized below.

ImageView.ScaleType.MATRIX: Scales the image using the image matrix when drawing it.
ImageView.ScaleType.FIT_XY: Scales the image to the ImageView size. Because X and Y are scaled independently regardless of the ratio, the image may look stretched or squashed.
ImageView.ScaleType.FIT_START: Scales the image to the ImageView size, preserving the ratio. The image is aligned to the top left of the ImageView.
ImageView.ScaleType.FIT_CENTER: Scales the image to the ImageView size, preserving the ratio. The image is aligned to the center of the ImageView.
ImageView.ScaleType.FIT_END: Scales the image to the ImageView size, preserving the ratio. The image is aligned to the bottom right of the ImageView.
ImageView.ScaleType.CENTER: Draws the image as is without scaling and aligns it to the center of the ImageView.
ImageView.ScaleType.CENTER_CROP: Scales the image, preserving the ratio, with the ImageView size as the minimum size. The image is aligned to the center of the ImageView.
ImageView.ScaleType.CENTER_INSIDE: Scales the image, preserving the ratio, with the ImageView size as the maximum size. The image is aligned to the center of the ImageView.