Given an Image URL - it should show the URL in the image view
The entire screen should be occupied by this image - Do not break the aspect ratio - nor chop off any part of the image - it is ok to have some black area on the x axis or y axis to preserve the aspect ratio
The Imageview should adjust orientation as the device is moved to landscape & portrait mode.
To just show an image, you may as well use the ImageView by setting layout parameters.
Suppose you want add zoom/pan functionality, then you will have to extend ImageView.
This link should help you
Shash
Related
I'm trying to use storyboard and layout constraints to align the footer image to the bottom of the view but when running on device it's hovering high above the bottom. The image is aligned with 0 margin to the superview. The view hierarchy is Controller->View->ScrollView->View->FooterImage. The image is bigger and scaled with content mode set to "aspect fit".
The constraints set on the image is sufficient, but I guess the constraints set on its super View is incorrect.
If you want to display the image at bottom you also need to make it superView align to the bottom of the ScrollView , and the same on ScrollView.
Check my previous answer here : https://stackoverflow.com/a/46539635/8187800 .
I have 2 images, with same dimension and same picture, a shape.
In the first image (that I show on screen), the shape is monocromatic, in the second image, shape is mapped with different color.
When I move the mouse, on the image, I want to show different text based on the color mapped on second (hidden) image.
I don't want to map square area, but irregular areas, this is my problem.
For example, when mouse cursor is on head (right image), I get color red on the left image (cached but not visualized) and I put a specific text.
How can I load second image an get pixel color? Gosu doesn't permit to get image info (only width and height).
Any ideas?
At the end I choose this GEM chunky_png, because it has no dependency from other gems or library and it's perfect to my needs:
#map_image = ChunkyPNG::Image.from_file('map_shape.png')
# Test pixel color
if #map_image[mouse_x - #main_image_x, mouse_y - #main_image_y] == ChunkyPNG::Color.rgb(255, 0,0)
# Do something
end
I have a borderPane with a menu top,a grid left and an image in the center.I want the image to have the same size as the center of the border because now the image goes over my grid.
I tried this:
imageView.fitWidthProperty().bind(box.widthProperty());
where imageView is the name for my image and box is the BorderPane object.Thank you.
See JavaFX Feature Request RT-21337 Add ImageViewPane and MediaViewPane controls which contains a code attachment for a sample ImageViewPane implementation which which will resize the ImageView it contains to the area available to the region. To get the behaviour required you might also need to implement computeMinWidth and computeMinHeight on the ImageViewPane so that they return zero rather than the minimum size of the Image.
now the image goes over my grid
This is because the minimum size of your image is currently larger than the available space of the center of your BorderPane:
BorderPane does not clip its content by default, so it is possible that childrens' bounds may extend outside its own bounds if a child's min size prevents it from being fit within it space.
Some potential alternatives to prevent the center content overflowing the border:
Manually set a clip on the center node to prevent it overflowing the borders.
Dynamically resize the ImageView as in the ImageViewPane sample linked above.
Place the ImageView in a ScrollPane.
Use the css -fx-background-image attributes to display and dynamcially resize your image rather than using an ImageView.
Set the center of the borderpane first before setting the border content, that way it will be rendered underneath the border content.
Use a different construct from a borderpane (e.g. a HBoxes, VBoxes, etc.) which don't overlap their nodes when the nodes are larger than the available display area.
I tried this: imageView.fitWidthProperty().bind(box.widthProperty());
My guess from the code provided is that this didn't work because the enclosing box of the image is a dynamically resizable pane of some sort, so the minimum width of the box is being determined by the width of the image and not vice versa.
How to show a full 960x624 image using j2me canvas?
I wouldn't mind to scroll but I don't want it resized.
{image = Image.createImage("/earth.png");}
{g.drawImage(image, width, height, Graphics.BOTTOM | Graphics.RIGHT);}
doesn't serve the purpose. I want to know if I have any option to get both the horizontal and vertical scroll bars without actually creating them to view the whole image?
The image size should be same as I don't want the TEXT on the image become unreadable.
I create a UIScrollView, in which I put a UIView. Then I add some objects which are subviews of the view I added to the UIScrollView, so that I can zoom properly all the objects within the scroll.
The point is that I have an UIImageView as a subview of the mentioned view, which contains an image which is adapted to the screen size by using "imageView.contentMode = UIViewContentModeScaleAspectFit;" property.
Initially, in portrait orientation, the image fits with the screen width, so you can't scroll to left or right. When I change orientation to landscape, image fits with screen top and bottom. Then my problem. You can scroll up and down a little bit the image, as if it preserved some of the top and bottom padding from the portrait orientation.
But, if I try to zoom out, as the min zoom I setted was 1,0, the image recovers its initial size. Then you can't zoom out anymore when the zoom scale is 1.0. The 'virtual' padding is gone!
It seems as if it needed some kind of refresh.
The same happens when I keep changing orientation for portrait and landscape. It only works correctly when app loads.
I tried setting "myUIScrollView.zoom = 1.0;" in "didRotateFromInterfaceOrientation" method (when the image was not zoomed) and it worked, the 'virtual' padding again was gone.
It seems that it needs a refresh once orientation changes.
Any clue about what I'm doing wrong?