Image not displaying correctly using POST messages.json API - yammer

Posting content to Yammer was a feature we'd successfully implemented a while back but now we are getting reports that the image is broken and showing a grey jigsaw. As well as this we noticed Yammer have changed the layout of posts. We originally were using a profile image, which would now look ridiculous with the layout changing to a squarer rectangle with a large image behind it.
This is the image:
https://cli-cdn.release.workstars.net/jantestvr-3ntsv7ypjestvj0e/employee_images/FzAhje2Cf6gdSKiNkMlEGTZQPvHI5Ju0BxDq7.png
This is url that produces the jigsaw:
https://thumbnails.yammer.com/preview?url=https%3A%2F%2Fcli-cdn.release.workstars.net%2Fjantestvr-3ntsv7ypjestvj0e%2Femployee_images%2FFzAhje2Cf6gdSKiNkMlEGTZQPvHI5Ju0BxDq7.png&signature=RJK%2Fo8yt2vv6DeXXtLrKa5%2BWThnUoXdWAHSIYLPNYqI%3D
Has something changed in the way you need to encode the POST data? I can't get anything other than a jigsaw trying things with the url manually. Also, any way to force the original layout of a full width rectangle with a square image floated inside to the left?

Related

How to implement tagging functionality like Instagram with an imageview with exact dimensions in android?

I am working on Tag functionality like Instagram in android,but i am not getting any proper way that how to get tag points on an image and show in another screen with exact points.

Best way to represent list with image(using url) in Xamarin.Forms?

I want to create List View. In this List View, I will have following fields.
StackPanel
1- Image with 300 x 400 size
2- Text-Label Controls
1 Screen will hardly cover 1 and Half ViewCell.
Images will have ImageURL. I want to load image smoothly. I also want to make smooth scroll up/down with image appearing.
Can anybody please suggest me which control I should use?
If List View, which CacheStrategy I should use?
Note: For one of such functionality, I had used List View with default CacheStrategy. In that, I just faced 1 major problem of image appearing. When page initialize first time, it show image properly. But as soon as I scroll down or scroll up, image disappear or misplace. In that case, I had suffered a lot and removed image finally.
Please suggest appropriate way for above functionality.
Thank you.
For the listview, you should definitely use RecycleElement as the CachingStrategy. See here https://developer.xamarin.com/api/type/Xamarin.Forms.ListViewCachingStrategy/#Remarks
And because the images are URLs, you can use FFImageLoading. It will fade-in the image after it is downloaded (as opposed to appearing instantly after downloaded), and you can even specify a placeholder image to use while the image is being downloaded.

Changing thumbnail for Facebook previews in comments

When posting a link in a comment on a Facebook post, there's a small square thumbnail included in the link preview. My preview images are usually rectangular and so Facebook selects how to crop this into a square for the link preview. I've noticed in some images, there is a detectable person in the image and so the crop is taken around that. However, in other images where the content isn't entirely clear, the crop is just taken from the centre of the image, leaving the image empty as my content is usually on the sides.
The crop seems to be done using some parameters (sx sy sw sh), in the facebook comment itself:
center crop:
https://external-lht6-1.xx.fbcdn.net/safe_image.php?d=AQDVaAOputB_VkrO&w=90&h=90&url=...&cfs=1&upscale=1&_nc_hash=...
right crop:
https://external-lht6-1.xx.fbcdn.net/safe_image.php?d=AQAny2E3bpUGVeYX&w=90&h=90&url=...&cfs=1&upscale=1&sx=280&sy=0&sw=396&sh=396&_nc_hash=...
Is there a way to choose the square crop parameter values for the link preview? I can't see an option to do this from the debugging tools (https://developers.facebook.com/tools/debug/sharing/), and I can't see any options when actually posting the link in a Facebook comment. Perhaps there's a way to control this using the image alt tag? I have not seen anything in the Facebook API that might help. I understand I can change the preview image to a square but I don't want to take that route unless I have to.

I'm trying to clip an image overlay in Google Maps API

I'm trying to clip an image overlay in Google Maps API, however without success. I can clip a HTML image successfully and overlay it on a Google MAP by using the CSS clip property and z-index property, however that's no use, as the image does not adjust to the Google map zoom and movements. i.e. the image is not bound to the Google MAP object in any way, doesn't respond to map changes.
If I assign the Google Map overlay to the cropped image source, it simply uses the original un-cropped source and not the cropped page image element. That's just how the image.src property works.
I successfully added an image overlay for Google MAPS, but there does not seem to be any clipping or cropping function for them. There is text on the image that I don't want to display for this application, but I don't want to crop the original source file image, as it's used for multiple display purposes.
historicalOverlay = new google.maps.GroundOverlay(imageurl,imageBounds);
historicalOverlay.setMap(map);
I need imageurl to point to a clipped version in memory or something like that or the clipped form image element, but not its un-clipped source image. Any ideas ?
The GroundOverlay class in Google Maps javascript API V3 does not provide any support for in-browser clipping/cropping of the image before display.
Because we needed that capability, plus some others like image rotation and non-rectangular images, we wrote a GroundOverlayEX javascript class that supports everything that the Google Earth version of GroundOverlay supports, including browser-side clipping/cropping of the image to-be-displayed.
The javascript class is open-source on Github at: https://github.com/azmikemm/GroundOverlayEX. There is API documentation as well (documentation.txt). All images shown by the GroundOverlayEX class are integral to the map, and will drag with the map, and zoom with the map.
A working functional example of the class in-action (with some clipped/ cropped images) is at: https://sites.google.com/site/issearthatnight/
If you turn off the VIIRS checkbox, and set the transparency down to midway, you'll see the images pretty plainly, and see that some are cropped (all are stored in NASA's servers as rectangles, so images that are square-ish or look like slices have been cropped by the GroundOverlayEX class).

WP7 WebBrowser's transparent background (workaround)

It's not possible to set transparent background for WebBrowser of WP7. To make impression of transparent background I want to do the following workaround. I want:
To find a position and size of WebBrowser on the page.
To get page's background image.
Crop it with values what I found on step 1.
To save result in IsolatedStorage
To parse HTML and place <body background="RESULTBACKGROUND">
MyWebBrowser.NavigateToString(NewHtmlString);
I think this should be a workaround of transparent background and should work.
For now I am trying just to place any .jpg image (let's say test.jpg) on step 5.
But fail. I have "Build Action" property of file set to "Content". It is placed in the root of the project. And <body background="test.jpg"> not working. Back of the WebBrowser is still white.
What I am doing wrong?
UPD:
Step 5 is solved.
2Claus: No! Not only from web. I saved both html file and image file to IsolatedStorage and WebBrowser can show image as a backgroud.
Now the problem is that background cannot be fixed. I tried many differrent things with styles. I also tried to add a fixed div behind my text. Nothing works. The picture is always scrolling with a text. I tried to add onscroll event and pass it scrolled value to move the div in an opposite direction, but div is glued to the page :(
Any ideas?
So assuming you're talking about the WebBrowser control, you're forgetting that the HTML only can refer to urls on the world wide web.
So either you need to host your background images on a website, or you need to inject a CSS style that sets the background to either white or black (the two default background-colours of the platform).
For WebBrowser, You don't actually have to save it to the ISO to make changes on the page. You can load it navigate to it normally, and then use InvokeScript to make the changes via custom JS code. It can be a little tricky though, as you will probably need to heavily rely on the eval and stringization. The problem mentioned by Claus is still there - but you need to do some experiments. With the Mango release and SDK 7.1+, the platform support IsoltatedStorage imagesources in the form of is://path/file - maybe - maybe - maybe squared - the webbrowser's renderer udnerstands them too - then setting your bkg's url to such would work. I doubt though, as it could be seen as some minor security breach, etc
I now bumped into the same background fixed image problem. For someone wandering here I solved it placing content into a fixed-height container (div) therefore the container contents is being scrolled and not the html page, leaving background picture "fixed".
body
{
background-image:url('...');
background-position:-20px -150px;
background-repeat:no-repeat;
background-attachment:fixed;
}
div
{
height:300px;
overflow:scroll;
}
Of course background-position and div height is set specifically for a WebBrowser position in page and it's size.

Resources