Is there any way of loading images, not from the ./images folder? (as folder structures in the image folder don't work when exporting to a jar file
Commentator wrote ...
2021/1/23
Loading external images
A few things ...
1. I wouldn't suggest aiming for a .jar file, at least not if you're using the latest version of Greenfoot. It's just ... not ideal.
2. I can't speak to .jar files particularly, but I know that a lot of file opening issues come from the symbols. Different OS' use different slashes. Here is some code that helps ensure that the right slashes are used:
// Thanks to MKYong at https://www.mkyong.com/java/how-to-detect-os-in-java-systemgetpropertyosname/ for the code that I based this on
class OSValidator {
private static String OS;
public static String getOSSymbol (){
if (!isWindows()){
return "/";
}
return "\\";
}
public static boolean isMac() {
OS = System.getProperty("os.name").toLowerCase();
//System.out.println(OS);
if (isWindows()) {
return false;
} else {
return true;
}
}
public static boolean isWindows() {
return (OS.indexOf("win") >= 0);
}
}
@MrCohen, with the code provided, isMac MUST always be called first else OS will be null and a NullPointerException will ensue.
Line 13 should be the continuation after "public static String " on line 3. The isMac method can then be simplified to:
public boolean isMac()
{
return ! isWindows();
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