/** Private constructor for this class. */
private LibDexLoader() {
String assetDexName = "jitsi-bundles-dex.jar";
// Before the dex file can be processed by the DexClassLoader,
// it has to be first copied from asset resource to a storage location.
Context ctx = JitsiApplication.getGlobalContext();
File dexInternalStoragePath = new File(ctx.getDir("dex", Context.MODE_PRIVATE), assetDexName);
BufferedInputStream bis = null;
OutputStream dexWriter = null;
final int BUF_SIZE = 2 * 1024;
try {
bis = new BufferedInputStream(ctx.getAssets().open(assetDexName));
dexWriter = new BufferedOutputStream(new FileOutputStream(dexInternalStoragePath));
byte[] buf = new byte[BUF_SIZE];
int len;
while ((len = bis.read(buf, 0, BUF_SIZE)) > 0) {
dexWriter.write(buf, 0, len);
}
dexWriter.close();
bis.close();
// Internal storage where the DexClassLoader writes
// the optimized dex file to
final File optimizedDexOutputPath = ctx.getDir("outdex", Context.MODE_PRIVATE);
this.dexClassLoader =
new DexClassLoader(
dexInternalStoragePath.getAbsolutePath(),
optimizedDexOutputPath.getAbsolutePath(),
null,
getClass().getClassLoader());
} catch (Exception e) {
throw new RuntimeException(e);
}
}
