Setting/overriding an app deployment folder - xamarin.android

Is there a way to set or override a project deployment folder in Mono for Android? For example, my application right now deploys to /data/data/SolutionEngine/files/.__override__
The nature of the application is that it loads plug-ins using Reflection, and by default it looks in the /Adapters sub-folder from the app root. This is how it works on the desktop and the Compact Framework, so for simplicity we'd like to continue to do the same on Android.
If I have a single solution that has the app and some plug-ins in it, I'd like those files to get deployed in the proper structure when I start debugging.

You could write out the plugins as android assets (see screenshot below). Please Note: You might need to change the extension to .mp3. See here. I didn't have this issue though.
Once you do that, you should be able to get the assets by using the Asset Manager. You can copy them to a different folder or do whatever with them. Here is a sample of reading them into memory and them writing out the name.
const String pluginPath = "Plugins";
var pluginAssets = Assets.List(pluginPath);
foreach (var pluginAsset in pluginAssets)
{
var file = Assets.Open(pluginPath + Java.IO.File.Separator + pluginAsset);
using (var memStream = new MemoryStream())
{
file.CopyTo(memStream);
//do something fun.
var assembly = System.Reflection.Assembly.Load(memStream.ToArray());
Console.WriteLine(String.Format("Loaded: {0}", assembly.FullName));
}
}

Related

Calling Another Project's Controller From A Project In The Same Solution (.NET Core )

There are 2 projects in the same solution. First project is a .NET Core project and it has all the codes(controllers, models etc.) related to packages. I need to get the information (id, name, description) of the packages and display it in the second project(.NET Core Web App with Razor). Is it possible to do it without changing the first project? I only want to show the package list on a single web page.
I tried calling the first project's controller but it didn't work. Maybe I missed a point. Any help is appreciated.
This requirement can be achieved, please see the gif image below.
Tips
If you want to call another project's controller from a project in the same solution, you need to make sure there is in HomeController in both project. I mean the name of any class should be unique in both projects.
Otherwise you will face the same issue like my homepage.
Test Code:
public List<PackageReference> GetPackageList5(string projectname)
{
List<PackageReference> list = new List<PackageReference>();
PackageReference p = null;
XDocument doc = XDocument.Load(_webHostEnvironment.ContentRootPath+ "/"+ projectname + ".csproj");
var packageReferences = doc.XPathSelectElements("//PackageReference")
.Select(pr => new PackageReference
{
Include = pr.Attribute("Include").Value,
Version = pr.Attribute("Version").Value
});
Console.WriteLine($"Project file contains {packageReferences.Count()} package references:");
foreach (var packageReference in packageReferences)
{
p = new PackageReference();
p.Version= packageReference.Version;
p.Include= packageReference.Include;
list.Add(packageReference);
//Console.WriteLine($"{packageReference.Include}, version {packageReference.Version}");
}
return list;
}
My Test Steps:
create two project, Net5MVC,Net6MVC
add project reference.
My .net6 project references a .net5 project. So in my HomeController (.net), I add below:
using Net5MVC.ForCore6;
using Net5MVC.Models;
Suggestion
When we reference the .net5 project in .net6 project, we can build success, but when we deploy it, it always failed. The reason is some file was multiple publish output files with the same relative path.
Found multiple publish output files with the same relative path:
D:\..\Net6\Net6\Net5MVC\appsettings.Development.json,
D:\..\Net6\Net6\Net6MVC\appsettings.Development.json,
D:\..\Net6\Net6\Net5MVC\appsettings.json,
D:\..\Net6\Net6\Net6MVC\appsettings.json.
And usually will add class library to current project, not add a web project.
As we know we can find packages info in .csproj file, so we need copy and paste .csproj file to publish folder.
I still recommend using the GetPackageList5 method above as an interface for your project, using HttpClient for requests.

Client configuration in Electron

I am quite new to Electron and I have two questions regarding configuration of my app.
1) Looking for a way to store client configuration (similar to app.config of .Net Apps).
Why I need this:
I am working on a desktop electron app. This app will be distributed to a number of machines and each of them need to have different configuration values.
2) Need a way to package electron app with predefined configuration for a specific machine.
Example:
Machine 1's config: MachineID='M01', MachineType='A'
Machine 2's config: MachineID='M02', MachineType='B'
Appreciate the support!
For me it was the same but I needed to save settings about the window so I made a settings.js file and stored my settings in there.
For you your settings file would contain something like this:
exports.machineType = 'A';
And you would get it in your app like this:
var settings = require('./settings.js');
var machineType = settings.machineType;
if (machineType == 'A') {
// Do things for machine type A.
} else {
// Do things for machine type B.
}

sqlite-net fails to create database in MonoDroid application

I start Xamarin Studio 4.0.3 and create a new solution for MonoDroid application. I am targetting version 2.3 or higher. I include Sqlite.cs from the sqlite-net (latest from site) project. I make sure I have a reference to Mono.Data.SQLite in the project. Then in the OnCreate of the default MainActivity I try to use the code shown in the readme to make a database connection:
string path = Android.OS.Environment.DataDirectory.ToString();
string dbname = path + "/" + "test.db3";
var db = new SQLiteConnection(dbname, SQLiteOpenFlags.Create|SQLiteOpenFlags.ReadWrite ,true);
However it always fails with an exception saying it can't open the database. If I follow Greg Shackles example and use SqliteDbHelper method it works, but I would like to understand what I am doing wrong that sqlite-net connection method is not working. I have a feeling I am missing something simple. I did also try just passing in a filename to SQLiteConnection() as well but when it failed I added the OpenFlags to see if that was the issue.
I just found out that apparently you're supposed to use the personal folder, instead of the databases folder:
string folder = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
var db = new SQLiteConnection(Path.Combine(folder, "mydb.db"));

Error #2044: Unhandled IOErrorEvent:. text=Error #2036: Load Never Completed

I have a .swf file which throws this error when I attempt to load it in a browser. Similar to other posts here this is the code:
var mySpite:Sprite = new Sprite();
var button:Loader = new Loader();
var url:String = "images/btnImage.png";
var urlReq:URLRequest = new URLRequest(url);
button.load(urlReq);
....
When I run the actionscript in Flex Build it works fine. Also when I double click the .swf file in the folder where it is stored, it works fine. I don't know why it only doesn't work and throws this error when I load it in a .jsp page.
It's most likely an issue with your path. Remember that the path to the image will be relative to the page which embeds the SWF.
In answer to your comment about having to change the paths when deploying, depending on how you're building and debugging your SWF, it might be possible to use Capabilities.playerType (see docs) to choose the correct path for the current environment. Another alternative might be to put all your image references in a couple of XML files (one local and one remote). As long as the path to the XML file is consistent between local and remote environments, you can update the SWF without worrying about the image paths.

how to upload files to rackspace cloud using windows services

using my windows service (target framework=.Net framework 4.0 client profile) I am trying to upload files to rackspace cloudfiles.
I found out some asp.net c# apis here https://github.com/rackspace/csharp-cloudfiles
but looks like they are not compatible with windows services.
any clues how to make this work together?
It's perfect library for work with rackspce. I am use it. And i am sure that it's not problem to use this library inside of windows service. But i think possible problems with .net framework client profile and com.mosso.cloudfiles.dll. But try first with client profile.
Also i use following code to upload files to Rackspace(Configuration it's my configuration class. Instead of 'Configuration.RackSpaceUserName' and 'Configuration.RackSpaceKey' use yous own creadentials):
private Connection CreateConnection()
{
var userCredentials = new UserCredentials(Configuration.RackSpaceUserName, Configuration.RackSpaceKey);
return new Connection(userCredentials);
}
public void SaveUniqueFile(string containerName, string fileName, Guid guid, byte[] buffer)
{
string extension = Path.GetExtension(fileName);
Connection connection = CreateConnection();
MemoryStream stream = new MemoryStream(buffer);
string uniqueFileName = String.Format("{0}{1}", guid, extension);
connection.PutStorageItem(containerName, stream, uniqueFileName);
}
Configuration something like this:
public class Configuration
{
public static string RackSpaceUserName = "userName";
public static string RackSpaceKey= "rackspaceKey";
}
I you don't want to use com.mosso.cloudfiles.dll very easy create you own driver for rackspace. Because actually for upload file to rackspace you just need send put request with 'X-Auth-Token' header. Also you can check request structure using plugin for firefox to view and upload files to Rackspace and firebug.
I have some example in C# using that same library here :
https://github.com/chmouel/upload-to-cf-cs
this is a pretty simple CLI but hopefully that should give an idea how to use it.
I've been around this for about one hour and weird things are happening into VS2010. Although I have referenced the dll and intellisense is working, cannot compile.
It looks like the referenced dll disappears. So, my recomendation in case you go into the same issue, use rack space for .NET 3.5: csharp-cloudfiles-DOTNETv3.5-bin-2.0.0.0.zip
Just be sure to change your project to the same framework version. It works really good.
For your reference, the downloads page is here: https://github.com/rackspace/csharp-cloudfiles/downloads

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