protected void startThumbnailCreation() {
if (thumbnail_size_perc <= 0) return;
// Log.i( TAG, "thumbnails " + thumbnail_size_perc );
String path = getPath(uri, true);
if (path == null || path.charAt(0) != '/') return;
if (tht != null) tht.interrupt();
Handler h =
new Handler() {
public void handleMessage(Message msg) {
notifyDataSetChanged();
}
};
tht = new ThumbnailsThread(this, h, Utils.mbAddSl(path), items);
tht.start();
}
public final String getPath(Uri u, boolean dir) {
try {
final List<String> paths = u.getPathSegments();
if (paths.size() < 4) return null;
String path_part = paths.get(3);
int col_pos = path_part.lastIndexOf(':');
String volume, path_root = null, sub_path, full_path;
volume = paths.get(1);
sub_path = path_part.substring(col_pos + 1);
if (volume.startsWith("primary"))
return Environment.getExternalStorageDirectory().getAbsolutePath() + "/" + sub_path;
else {
try {
File probe;
volume = volume.substring(0, volume.length() - 1);
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
full_path = "/mnt/media_rw/" + volume + "/" + sub_path;
probe = new File(full_path);
if (dir ? probe.isDirectory() : probe.isFile()) return full_path;
} else {
path_root = Utils.getSecondaryStorage();
if (path_root != null) {
full_path = Utils.mbAddSl(path_root) + sub_path;
probe = new File(full_path);
if (dir ? probe.isDirectory() : probe.isFile()) return full_path;
}
}
} catch (Exception e) {
}
if (path_root == null) path_root = volume; // better than nothing
}
return path_root + "/" + sub_path;
} catch (Exception e) {
Log.e(TAG, "Can't get the real location of " + u, e);
}
return null;
}