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The async/await pattern is a much-readable yet error-proof alternative to the then/catch you've used.

Basically, instead of writing:

I think you are popping with the wrong context. The example is popping with rootContext, which is from the top-most widget in the hierarchy. You are popping from with context, defined at your lowest builder in the hierarchy.

I can load the file 2IN_HomeStairs_Yeti_4GAL_repop_TCL_b_clp_24bit.wav here using

You should assign a key to your slidables. When Flutter manages its state it uses three trees to do it: a widget tree, element tree and render object tree. When a widget dismiss flutter tries to sync the rest widgets with the corresponding elements by simple type equality. So, that's why your app behaves this way. Flutter takes the first remaining widget plus the first element and compares whether they have the same type. If they have then Flutter uses the state of the element to show the corresponding render object. The last element of the element tree will be just dropped. So, you need to add keys and Flutter will additionally use them to sync widgets and elements in a desirable way.

Each Flutter widget has a Key field. You should assign them when you creating a widget instance. You can use some utility classes to generate such a key - like ValueKey(), UniqueKey etc. Alternatively, you can use you own keys if you have it in your data.

Based on the documentation for PageRouteBuilder, for the property transitionDuration it says: "The duration the transition going forwards." Initially, it is set to 300ms duration (Check source code).

this.transitionDuration = const Duration(milliseconds: 300)

Additionally there is a reverseTransitionDuration property which states: "The duration the transition going in reverse." Initially its value is the same as transitionDuration

this.reverseTransitionDuration = const Duration(milliseconds: 300),

Why are you facing this issue?

You have provided the forward transition as 1000ms whereas reverse transition is still 300ms. So, adding reverseTransitionDuration: const Duration(1000) will resolve your issue.

Finally I managed to do this, and I will explain how so that someone can use it too.

First of all i removed every "non data" character and used spaces as a separator. Then i opened the file in R by inserting it ina 768 columns long dataframe (3 vlaues x 256 pixels), with NA for every missing value.

The parsing is done by chosing every third column starting from the 1st (for X), from the 2nd (for Y) and 3rd (for VALUE).

As discussed in the comments, the image had a .jpg extension in the name, but was a PNG image file. The PDImageXObject createFromFile(String imagePath, PDDocument doc) method assumes the file type by its extension, so it embedded the file 1:1 in the PDF and assigned a DCT filter. Both of these would have been correct for a jpeg file, but not for png.

So the solution would be to either rename the file, or use the createFromFileByContent method.

Your raster is simply almost empty, in the sense that it has just the 2% of values !=0. However if you export the raster and visualize it in a GIS software (like Qgis, or ArcMap), by setting a 100% transparency for the 0 values you can see the remaining values:

Here an example:

In order to serve the static files from a container using the nginx proxy, the nginx proxy must have access to files statically... it would not 'proxy' but 'read' and serve the files... which means you must mount the app files into the proxy...

I would recommend you put up a new, light and clean nginx behind the nginx proxy along with your php-fpm service so you can have full management of your routes/locations,

First of all I have created a docker-compose.yml in my app that contains the following: