@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.line_list);
// Setup the list
adapter = new IconAdapter<FileWrapper>(this, R.layout.line_list_item);
ListView list = (ListView) findViewById(R.id.list);
list.setAdapter(adapter);
list.setOnItemClickListener(this);
// Load Directory
if (savedInstanceState != null) {
backStack = savedInstanceState.getParcelableArrayList("BACKSTACK");
}
if (backStack == null || backStack.size() == 0) {
backStack = new ArrayList<BackStackItem>();
String startPath =
(startDirectory == null || startDirectory.isEmpty())
? Environment.getExternalStorageDirectory().getPath()
: startDirectory;
backStack.add(new BackStackItem(startPath, false));
}
wrapFiles();
this.setVolumeControlStream(AudioManager.STREAM_MUSIC);
}
/* 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);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (backStack.size() > 1) {
backStack.remove(backStack.size() - 1);
wrapFiles();
} else {
Intent intent = new Intent();
setResult(RESULT_CANCELED, intent);
finish();
}
return true;
}
return super.onKeyDown(keyCode, event);
}
@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);
}
}
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();
}
String[] getPluginDirectories() {
ArrayList<String> directories = new ArrayList<String>();
PackageManager pm = this.mAppContext.getPackageManager();
List<ResolveInfo> plugins =
pm.queryIntentServices(
new Intent(PLUGIN_ACTION), PackageManager.GET_SERVICES | PackageManager.GET_META_DATA);
synchronized (mPackageInfoCache) {
// clear the list of existing packageInfo objects
mPackageInfoCache.clear();
for (ResolveInfo info : plugins) {
// retrieve the plugin's service information
ServiceInfo serviceInfo = info.serviceInfo;
if (serviceInfo == null) {
Log.w(LOGTAG, "Ignore bad plugin");
continue;
}
Log.w(LOGTAG, "Loading plugin: " + serviceInfo.packageName);
// retrieve information from the plugin's manifest
PackageInfo pkgInfo;
try {
pkgInfo =
pm.getPackageInfo(
serviceInfo.packageName,
PackageManager.GET_PERMISSIONS | PackageManager.GET_SIGNATURES);
} catch (Exception e) {
Log.w(LOGTAG, "Can't find plugin: " + serviceInfo.packageName);
continue;
}
if (pkgInfo == null) {
Log.w(
LOGTAG,
"Loading plugin: "
+ serviceInfo.packageName
+ ". Could not load package information.");
continue;
}
/*
* find the location of the plugin's shared library. The default
* is to assume the app is either a user installed app or an
* updated system app. In both of these cases the library is
* stored in the app's data directory.
*/
String directory = pkgInfo.applicationInfo.dataDir + "/lib";
final int appFlags = pkgInfo.applicationInfo.flags;
final int updatedSystemFlags =
ApplicationInfo.FLAG_SYSTEM | ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
// preloaded system app with no user updates
if ((appFlags & updatedSystemFlags) == ApplicationInfo.FLAG_SYSTEM) {
directory = PLUGIN_SYSTEM_LIB + pkgInfo.packageName;
}
// check if the plugin has the required permissions
String permissions[] = pkgInfo.requestedPermissions;
if (permissions == null) {
Log.w(
LOGTAG,
"Loading plugin: "
+ serviceInfo.packageName
+ ". Does not have required permission.");
continue;
}
boolean permissionOk = false;
for (String permit : permissions) {
if (PLUGIN_PERMISSION.equals(permit)) {
permissionOk = true;
break;
}
}
if (!permissionOk) {
Log.w(
LOGTAG,
"Loading plugin: "
+ serviceInfo.packageName
+ ". Does not have required permission (2).");
continue;
}
// check to ensure the plugin is properly signed
Signature signatures[] = pkgInfo.signatures;
if (signatures == null) {
Log.w(LOGTAG, "Loading plugin: " + serviceInfo.packageName + ". Not signed.");
continue;
}
// determine the type of plugin from the manifest
if (serviceInfo.metaData == null) {
Log.e(LOGTAG, "The plugin '" + serviceInfo.name + "' has no type defined");
continue;
}
String pluginType = serviceInfo.metaData.getString(PLUGIN_TYPE);
if (!TYPE_NATIVE.equals(pluginType)) {
Log.e(LOGTAG, "Unrecognized plugin type: " + pluginType);
continue;
}
try {
Class<?> cls = getPluginClass(serviceInfo.packageName, serviceInfo.name);
// TODO implement any requirements of the plugin class here!
boolean classFound = true;
if (!classFound) {
Log.e(
LOGTAG,
"The plugin's class' "
+ serviceInfo.name
+ "' does not extend the appropriate class.");
continue;
}
} catch (NameNotFoundException e) {
Log.e(LOGTAG, "Can't find plugin: " + serviceInfo.packageName);
continue;
} catch (ClassNotFoundException e) {
Log.e(LOGTAG, "Can't find plugin's class: " + serviceInfo.name);
continue;
}
// if all checks have passed then make the plugin available
mPackageInfoCache.add(pkgInfo);
directories.add(directory);
}
}
return directories.toArray(new String[directories.size()]);
}
@Override
public int getCount() {
return items.size();
}
