Add 'asset' URLConnection; IOUtil uses URLConnection / incr. effeciency; Android ClassLoaderUtil cleanup;

- Add 'asset' URLConnection
  - Please read API doc 'PiggybackURLConnection' and 'AssetURLConnection'

  - Solves generic resource handling where platform locations may differ,
    ie ClassLoader lookup on Android in the 'assets/' subfolder.

  - New Android 'AssetDexClassLoader' uses 'assets/' folder for findResource(..)

  - aapt.signed (our APK ant task)
    - uses 'assets/' folder

    - adds the 'assetsdir' attribute allowing to copy other assets into the APK

- IOUtil uses URLConnection / incr. effeciency
  - using URLConnection on all getResource(..) since URL
    is connected anyways for validation and URLConnection can be used by caller right away

  - String getRelativeOf(URL, String) -> URL getRelativeOf(URL, String)
    - preserves scheme, authority, etc
    - simple parentOf handling, more efficient

  - reusing new 'asset' protocol impl.

- Android ClassLoaderUtil cleanup;
  - Use createClassLoader(..) impl for build-in static jogamp and user APKs,
    which removes code redundancy

Tests: New code path, especially 'assets' are covered by new unit tests, no regressions on Linux.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/java/jogamp/android/launcher/LauncherMain.java b/src/java/jogamp/android/launcher/LauncherMain.java
index bbdee1d..eb56385 100644
--- a/src/java/jogamp/android/launcher/LauncherMain.java
+++ b/src/java/jogamp/android/launcher/LauncherMain.java
@@ -51,7 +51,7 @@ public class LauncherMain {
        userPackageNames.add("com.jogamp.opengl.test");
        Looper.prepareMainLooper();
        ActivityGroup activityGroup = new ActivityGroup(true);
-       ClassLoader cl = ClassLoaderUtil.createJogampClassLoaderSingleton(activityGroup, getUserPackageNames());
+       ClassLoader cl = ClassLoaderUtil.createClassLoader(activityGroup, getUserPackageNames(), false);
        if(null != cl) {
            Class<?>  activityClazz = Class.forName(getUserActivityName(), true, cl);
            Intent intent = new Intent(activityGroup, activityClazz);