Hey, I want to load multiple images from a subfolder into a PImage array. In JavaMode it works without problems.
But when using Android Mode and uploading it to the phone I get a NullPointerException in line 17. So filenames probably won't be created. Why? I have no idea what to further try..
String[] filenames;
PImage[] img;
void setup() {
String imagepath = dataPath("images") + "/";
File folder = new File(imagepath);
// filter (returns true if file's extension is .jpg)
java.io.FilenameFilter pngFilter = new java.io.FilenameFilter() {
public boolean accept(File dir, String name) {
return name.toLowerCase().endsWith(".png");
}
};
filenames = folder.list(pngFilter);
// define array size
img = new PImage[filenames.length];
for (int i = 0; i < filenames.length; i++) {
println(imagepath + filenames[i]);
img[i] = loadImage(imagepath + filenames[i]);
}
}
void draw() {
}
BUILD SUCCESSFUL in 19s 28 actionable tasks: 28 executed FATAL EXCEPTION: Animation Thread Process: processing.test.test, PID: 517 java.lang.NullPointerException: Attempt to get length of null array at processing.test.test.test.setup(test.java:37) at processing.core.PApplet.handleDraw(Unknown Source) at processing.core.PSurfaceNone.callDraw(Unknown Source) at processing.core.PSurfaceNone$AnimationThread.run(Unknown Source)
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