Don't worry, I'm not asking you to fix all my bugs, I just wanted to know common causes for gwt/html logging to not work.
Here is my project:
https://github.com/vedi0boy/Archipelo
I cannot get logging to work at all in html. I used this code in a brand new LibGDX project and it worked (inside the main class):
#Override
public void create () {
Gdx.App.setLogLevel(Application.LOG_DEBUG);
Gdx.app.log("Test", "Test log message.";
}
I just don't get it. Is there something common that could be making basic html/gwt functions not work? My libgdx is update to 1.9.2. I can't seem to figure out why it works on a new project but not mine.
What should I do? Should I attempt to copy all the code to a new project? Thanks.
P.S. I am also unable to use a networking library that I need, and it also works on a brand new project.
The solution was simple. I made a while loop that did not continue until a connection to the server was established. Since javascript is single threaded, it got caught in an infinite loop.
The reason this has to do with logging is because LibGDX only loads up the log box when create is finished being run and my infinite loop was in create so it never got around to rendering the logs.
Lesson: Don't treat JavaScript as a multi-threaded language when using GWT, because it isn't.
You don't need to copy all your code to a new project, if you have doubts about your LIBGDX version you can update your corruent project to a recent V of libgdx,
use the build.gradle like follow :
gdxVersion = "1.5.2" // your gdx version here
for more info read this topic in the official WIKI
Related
While trying to tackle the native map not showing problem, I was experimenting with building Android app with certificates. I used a simplify test where the source contains only:
Form hi = new Form("Welcome", new BorderLayout());
MapContainer c = new MapContainer();
hi.add(BorderLayout.CENTER, c);
hi.show();
, and relevant build hints:
codename1.android.keystore=...
codename1.android.keystoreAlias=...
codename1.android.keystorePassword=...
codename1.arg.android.debug=false
codename1.arg.android.GoogleMaps.minPlayServicesVersion=9.4.0
codename1.arg.android.playService.maps=true
codename1.arg.android.release=true
codename1.arg.android.xapplication=<meta-data android\:name\="com.google.android.maps.v2.API_KEY" android\:value\="AIza......."/>
codename1.arg.android.playService.maps=true
I used certificate generated through the CN1 generator. Before adding the certificate, the build went fine without any complaints, but after adding the certificate, build failed with a similar error log as in another question with parse CN1Lib. This is the complete error log.
I'd like to know if this can be resolved or do I need some workaround for it? Thanks in advance.
Edit:
I'm not sure if this help, but the issue can be reproduced through:
Create a new cn1 project (I used Eclipse Oxygen), then install native Google maps plugin and refresh cn1lib as instructed
In the start(), add a new MapContainer to the form with BorderLayout in Center
Add the build hints as instructed in github for the native maps cn1lib
Add Android certificate in cn1 settings
Build the project
Things that are not mentioned are left in default state
Sorry about that issue, we pushed out a bad update as part of refactoring work. I've pushed out a fix just now and it should be available for update.
I want to create a Processing library that adds a single function to Processing. A single command. How do I do this?
So I want to be able to write on Processing this:
void setup() {
drawMyCustomShape()
}
In a way that drawMyCustomShape will be on my custom library implementation.
Thanks!
Note: this question is not about creating a new library in processing. Is about creating a library that exports one new command (so you can using without caring of the container class instance).
First of all, are you sure you really need to create an entire library? You could just add that class to your sketch without needing to deploy it as a library. If you're worried about clutter, just put it in its own tab.
If you really need to create a library, then there are three tutorials that you need to read:
Library Overview
Library Basics
Library Guidelines
But basically, you need to create a Java project (in an IDE like eclipse, or with a basic text editor and the command line) that uses Processing as a library. That's where you'd put your MyLibrary class. You'd then export it as a .jar file, and then import that .jar file into Processing. You would then be able to use your class exactly like you can use any other Processing library.
Your proposed setup has some other issues (how are you going to access the sketch variable from the static function?), but I'd suggest treating them as separate questions after you get the basics in place.
It sounds like you are actually looking to create your own extension of the Processing library, as in actually change the core jar file.
You can extend the actual Processing library by forking off of its main branch on Github. By writing your function drawMyCustomShape into the actual core in the forked version, you can then build the Processing Development Environment from your copy of the code. Using that particular copy of the PDE, you could do what you're describing.
Once you compile this build, you could actually distribute this copy of the PDE to your college students. They would be able to use your function as if nothing were changed. (I'm guessing that this is for an intro-level class at the college level, so that's why you would have to hide implementation from your students?)
Here's some links to get you started:
Processing github
Instructions for building the PDE from source
So, finally I found the most adequate answer for my case.
The solution for this is to implement a new Processing Mode that extends the builtin Java Mode. To include static members to the main processing program you will need to add a new static import to the ones that processing adds to your code.
You can do this by forking the Mode Template for 3.0 that #joelmoniz created from #martinleopold:
https://github.com/joelmoniz/TemplateMode/tree/3.0-compatibility
There is a good tutorial here:
http://pvcresin.hatenablog.com/entry/2016/03/17/210135
Why is the most adequate solution? : I think this is the best way to achieve new static methods in processing code and ensure an easy distribution! You just have to set the mode folder in your sketchbook/modes folder. If I were to fork processing it would be a big deal to prepare distributions for all operative systems and also to keep update with main project.
My particular solution:
To add my static imports into Processing I implemented a custom mode where I overrode the PdePreprocessor class which wraps the processing code with all the Java procesing code. So, the idea was to add more imports to the imports that the PdePreprocessor generates on the generated Java source.
In my custom PdePreprocessor I overrode the getCoreImports method to add my custom methods. I did this here because I consider the new imports are part of the core of my custom mode. You could also achieve this by overriding writeImports method.
In order to use my PdePreprocessor implementation I had to overrode the following classes:
Commander
JavaBuild
JavaEditor
JavaMode
JavaEditor
I had to implement a new JavaBuild which preprocesses the Sketch with my custom PdePreprocessor. And also use my custom JavaBuild in all the places where the Processing Java Mode instances the build class. Please share with us if there is a better way to do what I did.
Here is the github for my solution: http://github.com/arypbatista/processing-inpr/
It's a follow-up from this.
Windows Phone 8 C# project (MyApp), migrated from WP7.1. I've added a native Windows Runtime component library (AppLib) to the solution, created a reference. There's a public sealed ref class (MyClass) in it. There's a reference to it in the C# code (in OnLoaded of the main XAML page). The whole thing builds - meaning the metadata of the component is being generated.
When I'm trying to run on the emulator, the project fails with the exception or type BadImageFormatException with the following message:
An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
The error typically pops up when you try to mix CPU types in .NET.
The active platform is "Mixed platforms". In the Configuration Manager, it's configured to build MyApp for "x86" and AppLib for "Win32". In a vanilla freshly generated project that runs fine, the config is identical.
Question - what's wrong with that configuration? What do I need to check?
EDIT: I've added a second, blank C++ library to the solution - TestLib. This one loads and works as expected.
EDIT2: excluded everything from build in AppLib - it works. Now I'll be adding lines one by one, see which one causes the issue...
Totally my fault. When I changed the namespace of AppLib (see the linked question), I've left one little declaration in the library in a MyApp namespace.
The error is still misleading. I'd delete the question, but since the error message is sure to send someone on a wild goose chase with build CPU type and whatnot, let it remain.
Shouldn't a Windows Phone library be built for ARM in most cases? Have you had a chance to watch the "Windows Phone 8: Using C++ in your Applications" session from last week's //Build/ conference? That might include some answers.
I've been googling around for the past 2 hours looking for some simple instructions on how to add my own custom metadata tag in as3 with no success. I'm starting to think that I'm probably not searching for the correct terms.
The Problem
Ultimately, what I want to do is add a custom metadata on a function that takes a function as a parameter and makes sure that the given function has the correct parameters.
I.e. I have the following function:
public function testCallback(callback:Function):void
{
callback("test");
}
and I want to get a compiler error when I call it like this:
public function doNothing():void
{
// doing nothing
}
public function someRandomFunction():void
// ...
testCallback(doNothing);
}
The way I'm thinking of doing this is by having this metadata:
[Callback(paramName="callback",callbackParams="string")]
public function testCallback(callback:Function):void
{
callback("test");
}
The extension would run during compilation and, if the function passed does not contain the correct parameters, a compile-time error will be thrown. I THINK by using flex2.compiler.util.ThreadLocalToolkit.logError(path, line, errorMessage); I can accomplish this.
The Search
I've been googling for a couple of hours now and couldn't find a simple tutorial that could get me started. I found some SDK bug reports (SDK-18718, SDK-26041), an unfinished forum post, a tutorial (?) on how to add a custom metadata in FlexBuilder (I'm using FlashDevelop), a not-so-useful answer in StackOverflow and many many more dead ends.
The Help
So far, as far as I could understand, I will use Java to create the extension and then, using a compiler command, I'll add it into my project. However, I don't know what do I need to get started.
My two main questions are:
A) What do I need to create the extension in Java? (do I need Flex Builder? Eclipse? what libraries do I need in my classpath?)
B) Once I have compiled this into something (a swc?), how do I include this in FlashDevelop in my AS3 Project?
Thanks in advance!
Update
I've been able to create a Java project in eclipse, add the Flex libraries, implement the IMxmlcExtension interface and compile the project into a jar with the correct MANIFEST file. Unfortunately, adding the extra -extension=MyTest.jar in FlashDevelop, did nothing.
In case it is useful, the resulting command line for the compiler was
mxmlc -load-config+=obj\MyProject.xml -debug=true -incremental=true
-swf-version=10 -extension=flex_test.jar -o obj\MyProject634846490611881374
Update 2
Timofei Davydik helped me narrow down the problem. It seems that FlashDevelop is the main problem. Creating an extension and compiling it in command line works. I started a thread in FlashDeveloper's forums. In case you're interested, the thread is: -extension compiler option
Update 3
Pilippe is correct, it seems that the problem comes from the fact that FlashDevelop uses Flex Compiler SHell (fcsh). I am now looking into how can I switch compilers.
Really interesting question. I've done some research. Yes, we can write mxmlc extensions and add some custom functionality. But processing custom metadata is really complicated, and much time is needed debug and explore flex compiler sources. I've created a post in my blog about extensions, you can check it:
http://tim-davydik.blogspot.com/2012/09/flex-compiler-mxmlc-extensions-forcing.html
How to make meta-data tags work in Action Script
Timofei Davydik's wrote a quick and simple tutorial in his blog to answer my question, named Flex compiler mxmlc extensions. Forcing compiler language, and helped me a bunch to track down what is the problem (which is why I'm giving him the bounty). In his post, he is using Flash Builder and not FlashDevelop, which brings us to the answer of the next question:
How to program them using Flash Develop
Unfortunately, as Phillipe pointed out, for AS3 projects, FlashDevelop uses the Flex Compiler SHell (FCSH), which doesn't support meta-data. Since FlashDevelop is open-source, I'll try (and probably fail) to switch the compiler for testing purposes. For anybody else interested in this, I think this forum post is a good start: [ GIFT ] Try new AS3 compiler (ASC 2.0) in flashDevelop 4.x
I have always thought that replacing the normal windows desktop icons with an "active desktop" html page which can launch my programs, as well as open directories and files through links. This would be a really cool way to customize one's desktop.
Using the "file://" protocal was my first approach but this does not work correctly. In another SO Post I found this link but its a little over my head. Is this the correct approach?
I can't imagine that I am the first one to consider this; it seems like a good idea (no?). What do you all think?
I like the idea of active desktop for a desktop customization. What you can do is register your own schema
Add a Registry entry.
Here is the first example I worked with.
Add This to a .reg file and Import into the registry.
Change "myschema" and the location of the executable to match your own needs
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\myschema]
#="URL:My Schema Protocol"
"URL Protocol"=""
[HKEY_CLASSES_ROOT\myschema\DefaultIcon]
#="C:\\Program Files\\MySchemaProgram\\MySchema.exe,1"
[HKEY_CLASSES_ROOT\myschema\shell]
[HKEY_CLASSES_ROOT\myschema\shell\open]
[HKEY_CLASSES_ROOT\myschema\shell\open\command]
#="\"C:\\Program Files\\MySchemaProgram\\MySchema.exe\" \"%1\""
Now if you create a hyperlink
<a href="myschema://Whatever+i+want" >Click Here</a>
Your computer will open your MySchema Application with the href in the command line.
just be mindful because Ervironment.CommandLine will be UTF Decoded therefore
//This Link
Click Here
//Will Result in This Command Line Execution.
"C:\Program Files\MySchemaProgram\MySchema.exe" myschema://Something Here
You can also use this schema in the ShellExecute commands as well as the Run Dialog.
Here is the example program I used to get started with. You should be able to get the idea pretty quick
using System;
using System.Collections.Generic;
using System.Text;
namespace Alert
{
class Program
{
static string ProcessInput(string s)
{
// TODO Verify and validate the input
// string as appropriate for your application.
return s;
}
static void Main(string[] args)
{
Console.WriteLine("Alert.exe invoked with the following parameters.\r\n");
Console.WriteLine("Raw command-line: \n\t" + Environment.CommandLine);
Console.WriteLine("\n\nArguments:\n");
foreach (string s in args)
{
Console.WriteLine("\t" + ProcessInput(s));
}
Console.WriteLine("\nPress any key to continue...");
Console.ReadKey();
}
}
}
best of luck with your application. I would be eager to see it when it is complete.
EDIT: I am adding some matching strings for this as it is a cool feature and more people may want to use this technique for something they wanted to do.. These are the things i looked for it under, (unsuccessfully) Let me know if anyone thinks of any more.
custom url/uri handler
custom schema program
registry web address program
handle web link
launch app from url
I've looked into what you've asked a while back and never found anything that worked well.
Ultimately if the goal is full customization of your desktop, I think you can get a similar result by researching something like this: http://rainmeter.net/RainCMS/ and http://kaelri.deviantart.com/art/Enigma-103823591 Lifehacker has tons of links/tutorials on how to get it all running. I was able to get a desktop running that far exceeded my goals with using HTML on the desktop.
One way I got some really interesting results (though I haven't tried it for years and can't confirm right now that it still works on a modern OS and modern flash player) was to use an active desktop page running a flash swf file that contained a user interface I had created and (at the time I was using it) could launch programs from within the swf.
I ran a setup in a cyber cafe where each desktop was controlled via active desktop running a flash app. Launching and shutdown operations were handled with a mini webserver written in python. The OS was XP.
My experience was that Active Desktop is unreliable. It leaks memory terribly and regularly crashes. They might have fixed it in later versions but since hardly anyway uses it I doubt much effort has gone into fixing its obvious flakiness.