/* Scan the files in the new directory, and store them in the filelist.
* Update the UI by refreshing the list adapter.
*/
private void loadDirectory(String newdirectory) {
if (newdirectory.equals("../")) {
try {
directory = new File(directory).getParent();
} catch (Exception e) {
}
} else {
directory = newdirectory;
}
SharedPreferences.Editor editor = getPreferences(0).edit();
editor.putString("lastBrowsedDirectory", directory);
editor.commit();
directoryView.setText(directory);
filelist = new ArrayList<FileUri>();
ArrayList<FileUri> sortedDirs = new ArrayList<FileUri>();
ArrayList<FileUri> sortedFiles = new ArrayList<FileUri>();
if (!newdirectory.equals(rootdir)) {
String parentDirectory = new File(directory).getParent() + "/";
Uri uri = Uri.parse("file://" + parentDirectory);
sortedDirs.add(new FileUri(uri, parentDirectory));
}
try {
File dir = new File(directory);
File[] files = dir.listFiles();
if (files != null) {
for (File file : files) {
if (file == null) {
continue;
}
String filename = file.getName();
if (file.isDirectory()) {
Uri uri = Uri.parse("file://" + file.getAbsolutePath() + "/");
FileUri fileuri = new FileUri(uri, uri.getPath());
sortedDirs.add(fileuri);
} else if (filename.endsWith(".mid")
|| filename.endsWith(".MID")
|| filename.endsWith(".midi")
|| filename.endsWith(".MIDI")) {
Uri uri = Uri.parse("file://" + file.getAbsolutePath());
FileUri fileuri = new FileUri(uri, uri.getLastPathSegment());
sortedFiles.add(fileuri);
}
}
}
} catch (Exception e) {
}
if (sortedDirs.size() > 0) {
Collections.sort(sortedDirs, sortedDirs.get(0));
}
if (sortedFiles.size() > 0) {
Collections.sort(sortedFiles, sortedFiles.get(0));
}
filelist.addAll(sortedDirs);
filelist.addAll(sortedFiles);
adapter = new IconArrayAdapter<FileUri>(this, android.R.layout.simple_list_item_1, filelist);
this.setListAdapter(adapter);
}
public FileWrapper(File aFile, int type, boolean aIsEnabled) {
file = aFile;
parentItem = type == PARENT;
dirSelectItem = type == DIRSELECT;
typeIndex = type == FILE ? (FILE + (file.isDirectory() ? 0 : 1)) : type;
enabled = parentItem || dirSelectItem || aIsEnabled;
}
private void wrapFiles() {
listedDirectory = new File(backStack.get(backStack.size() - 1).path);
if (!listedDirectory.isDirectory()) {
throw new IllegalArgumentException("Directory is not valid.");
}
adapter.clear();
setTitle(listedDirectory.getAbsolutePath());
if (isDirectoryTarget) adapter.add(new FileWrapper(null, FileWrapper.DIRSELECT, true));
if (listedDirectory.getParentFile() != null)
adapter.add(new FileWrapper(null, FileWrapper.PARENT, true));
// Copy new items
final File[] files = listedDirectory.listFiles();
if (files != null) {
for (File file : files) {
String path = file.getName();
boolean allowFile = file.isDirectory() || (filterPath(path) && !isDirectoryTarget);
if (allowFile)
adapter.add(new FileWrapper(file, FileWrapper.FILE, file.isDirectory() || true));
}
}
// Sort items
adapter.sort(
new Comparator<FileWrapper>() {
@Override
public int compare(FileWrapper aLeft, FileWrapper aRight) {
return aLeft.compareTo(aRight);
};
});
// Update
adapter.notifyDataSetChanged();
}
@Override
public void onItemClick(AdapterView<?> aListView, View aView, int aPosition, long aID) {
final FileWrapper item = adapter.getItem(aPosition);
if (item.parentItem && backStack.get(backStack.size() - 1).parentIsBack) {
backStack.remove(backStack.size() - 1);
wrapFiles();
return;
} else if (item.dirSelectItem) {
finishWithPath(listedDirectory.getAbsolutePath());
return;
}
final File selected = item.parentItem ? listedDirectory.getParentFile() : item.file;
if (selected.isDirectory()) {
backStack.add(new BackStackItem(selected.getAbsolutePath(), !item.parentItem));
wrapFiles();
} else {
String filePath = selected.getAbsolutePath();
finishWithPath(filePath);
}
}