place image button over the image background on android - android-image

in my app i have a background image and need to place an image button at the specified location of the background image.i did by using frame layout with android:layout_gravity,layout_alignBottom and marginLeft and right properties. please refer image no :1
i set it for one emulator and it works but i get wrong when launch other emulator of different size so how to set image view over a background image so that imageview not changes its position for any size of screen.
Is there any possibilities to trigger action find by touching image button on the screen(both background image and image button combined as single image - please refer Image no 2)

For this kind of problem, I would think that the best solution in order not to have problem with the screen sizes/densities would be to have different images for the play phase, stop etc.
Thus having:
microphone with play button: 1 image
microphone with stop button: 1 image
microphone with play selected button: 1 image
Etc. and handling the user events.
Hope this helps!

Related

Image SizeChanged Event is fires only one in xamarin forms

I am having image control. I am setting image from gallery and camera, then setting image width and height based on captured images. For that I use size changed event, it working for the first time. then i removed that image and set the image again that time the size changed event is not triggering. how can i trigger image Size Changed method for every time setting the image

Why the layout in qt avoid to show full image of background image for pushbutton

I have problem with layout. I put image for QPushButton background but when I add my button to each layout, it avoid to show full image.
Use size Policy and minimum Height-width. for example you want to expand the button. first select the button and after that choose size Policy to change the size. select Expanding for each property(vertical|horizontal Policy) you want to change. Also you can set the vertical|horizontal stretch. if you want to set limit for it's size you can set minimum and maximum size for your button.
Just look at your object properties, Also look at here. :)

MURA: getImageURL small size cuts off the image

The small size creates an image too large to fit in the box. Is there a way by which the image can be wrapped completely?
I am doing
<div class="catimgback">
<img src="#arguments.item.getImageURL(size='arguments.size',width=arguments.width,height=arguments.height)#" alt="#htmlEditFormat(arguments.item.getValue('title'))#" class="catimg" />
</div>
Where arguments.width = 163px; arguments.height=163px; and arguments.size = small
If i make catimgback's style=height:100% then all goes well. Also, I played with keeping the size to be custom and giving custom width and height but could not get the images to work. all the small size images gets cut off.
I think you may be confused as to how getImageURL() works. The only time you need to pass in the height or width arguments, is if you pass in size='custom' or omit the size attribute altogether.
Also, when you use size='custom', the image gets cropped automatically based on the dimensions of the image that's been uploaded. So, in your case, you want a square image ... but what if the image that's been uploaded is not exactly square, maybe it's a rectangle. So, in that case, Mura starts at the very center of the image, then scales out from there to the outer most boundaries. If the image were a vertical rectangle, you can imagine then that the top and bottom parts of the rectangle won't make the cut. Conversely, if the image were a horizontal rectangle, then the left and right edges of the image won't make it into the cut.
What you really want in this case is a pre-defined image size called catimg with a height and width attribute of 163px. To create this:
Go to Site Config > Edit Site from the Admin area
Click the Images tab
Towards the bottom, click Add Custom Image Size
Enter a Name (for example, catimg)
Enter the Height
Enter the Width
Click Save (You now have a custom image size that can be used for any content items)
Go to the Site Manager, and add/edit a content item
If editing an existing content item that already has an image, click the crop marks to get to the Image Details screen. Otherwise, select an image to upload, and Publish.
From the Image Details screen, scroll down to the custom image size you've created, and you can now Re-Crop your image to select your desired image region.
Now, anytime you call getImageURL(size='catimg'), Mura will use this specific image to display.
Cheers!

Flex Drag and Drop

I have an image that I show inside a canvas which I can zoom in on.
The problem is that when zoomed in, I try to drag the image, I can see the outline of the image in the foreground, (i.e.) outside the canvas boundary.
Is there anyway to tell the dragHandler to crop the "grabbed" image outside the canvas boundary?
In my experience using the built in drag/drop flex stuff is overkill for something that involves moving a component around in a canvas.
The easier way to do this (in my opinion) would be to listen for mouse down/up/move the image around in the canvas yourself.
When you detect a mouse down on your image, add a listener for mouse move (pro tip: make sure you set useCapture to true when calling addEventListener) and store the position of the mouse relative the origin of your image. Then whenever you get a mouse move, change the position of your image within your canvas taking into account the position of the mouse within the image (which you stored on mouse down). Keep doing this until mouse up occurs, then remove your mouse move listener.
There are some additional finer points to account for (what if the user drags outside of the canvas? Or outside of the browser window?), but this will get you started.
Hope that helps.

Full screen mode in silverlight

Would it be possible to show an image in full screen mode using silverlight. I'm looking out for some thing like the full screen option of the flash video players.
You can set
Application.Current.Host.Content.IsFullScreen = true;
this has to be done from a mouse button event or a click, you can't force the user into full screen without some interaction on their part.
Then you'll need to scale the image. If it's in an element that scales automatically, like a Grid cell and the Grid resizes automatically (like if it's the root element on the page and the page doesn't have a width or height specified) then you're good, but otherwise you'll need to handle the Application.Current.Host.Content.FullScreenChanged event and either resize or apply a scale transform to the image or its container to make it fill the screen, and do the same when you go back to non full screen mode.
Set System.Windows.Interop.BrowserHost.IsFullScreen = true.

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