@Nullable
private boolean deletFile(File file) {
if (!file.delete()) {
DocumentFile sdDir = getExternalSdDocumentFile();
if (sdDir == null) return false;
String baseS = sdDir.getName();
String fileFolder = file.getAbsolutePath();
String[] split = fileFolder.split("/");
DocumentFile tmpdir = null;
boolean append = false;
for (String aSplit : split) {
if (aSplit.equals(baseS) || append) {
if (!append) {
append = true;
tmpdir = sdDir;
} else {
tmpdir = tmpdir.findFile(aSplit);
}
}
}
boolean d = false;
d = !(tmpdir != null && tmpdir.exists()) || tmpdir.delete();
Logger.d("delteDocumentFile", "file delted:" + d);
return d;
}
return true;
}
private DocumentFile getDCIMDocumentFolder(boolean create) {
DocumentFile documentFile = null;
DocumentFile sdDir;
if ((sdDir = getExternalSdDocumentFile()) != null) {
documentFile = sdDir.findFile("DCIM");
if (documentFile == null && create) documentFile = sdDir.createDirectory("DCIM");
}
return documentFile;
}
@Override
public DocumentFile getFreeDcamDocumentFolder() {
DocumentFile dcimfolder;
DocumentFile freedcamfolder = null;
if ((dcimfolder = getDCIMDocumentFolder(true)) != null) {
freedcamfolder = dcimfolder.findFile("FreeDcam");
if (freedcamfolder == null) freedcamfolder = dcimfolder.createDirectory("FreeDcam");
}
return freedcamfolder;
}
/**
* Get a DocumentFile corresponding to the given file (for writing on ExtSdCard on Android 5). If
* the file is not existing, it is created.
*
* @param file The file.
* @param isDirectory flag indicating if the file should be a directory.
* @return The DocumentFile
*/
public static DocumentFile getDocumentFile(
final File file, final boolean isDirectory, Context context) {
String baseFolder = getExtSdCardFolder(file, context);
boolean originalDirectory = false;
if (baseFolder == null) {
return null;
}
String relativePath = null;
try {
String fullPath = file.getCanonicalPath();
if (!baseFolder.equals(fullPath)) relativePath = fullPath.substring(baseFolder.length() + 1);
else originalDirectory = true;
} catch (IOException e) {
return null;
} catch (Exception f) {
originalDirectory = true;
// continue
}
String as = PreferenceManager.getDefaultSharedPreferences(context).getString("URI", null);
Uri treeUri = null;
if (as != null) treeUri = Uri.parse(as);
if (treeUri == null) {
return null;
}
// start with root of SD card and then parse through document tree.
DocumentFile document = DocumentFile.fromTreeUri(context, treeUri);
if (originalDirectory) return document;
String[] parts = relativePath.split("\\/");
for (int i = 0; i < parts.length; i++) {
DocumentFile nextDocument = document.findFile(parts[i]);
if (nextDocument == null) {
if ((i < parts.length - 1) || isDirectory) {
nextDocument = document.createDirectory(parts[i]);
} else {
nextDocument = document.createFile("image", parts[i]);
}
}
document = nextDocument;
}
return document;
}