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fix on get file path from uri
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@2math
2math committed Jul 3, 2019
1 parent 244bf9a commit c8b9acb
Showing 1 changed file with 158 additions and 11 deletions.
169 changes: 158 additions & 11 deletions core_library/src/main/java/com/futurist_labs/android/base_library/utils/files/FileUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -32,12 +32,19 @@
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.provider.OpenableColumns;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.text.TextUtils;
import android.util.Log;
import android.webkit.MimeTypeMap;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileFilter;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.DecimalFormat;
import java.util.Comparator;

Expand Down Expand Up @@ -272,7 +279,6 @@ public static String getDataColumn(Context context, Uri uri, String selection,
*
* @param context The context.
* @param uri The Uri to query.
* @see #isLocal(String)
* @see #getFile(Context, Uri)
* @author paulburke
*/
Expand Down Expand Up @@ -319,18 +325,42 @@ else if (isDownloadsDocument(uri)) {
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:", "");
}
try {
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
} catch (NumberFormatException e) {
return null;
String[] contentUriPrefixesToTry = new String[]{
"content://downloads/public_downloads",
"content://downloads/my_downloads",
"content://downloads/all_downloads"
};

for (String contentUriPrefix : contentUriPrefixesToTry) {
Uri contentUri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), Long.valueOf(id));
try {
String path = getDataColumn(context, contentUri, null, null);
if (path != null) {
return path;
}
} catch (Exception e) {
if(DEBUG){
e.printStackTrace();
}
}
}
String path = getDataColumn(context, uri, null, null);
if (path != null) {
return path;
}

// path could not be retrieved using ContentResolver, therefore copy file to accessible cache using streams
String fileName = getFileName(context, uri);
File cacheDir = getDocumentCacheDir(context);
File file = generateFileName(fileName, cacheDir);
String destinationPath = null;
if (file != null) {
destinationPath = file.getAbsolutePath();
saveFileFromUri(context, uri, destinationPath);
}

return destinationPath;
}
// final Uri contentUri = ContentUris.withAppendedId(
// Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
//
// return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
Expand Down Expand Up @@ -572,4 +602,121 @@ public static Intent createGetImageIntent() {
intent.setType("image/*");
return intent;
}

private static void saveFileFromUri(Context context, Uri uri, String destinationPath) {
InputStream is = null;
BufferedOutputStream bos = null;
try {
is = context.getContentResolver().openInputStream(uri);
bos = new BufferedOutputStream(new FileOutputStream(destinationPath, false));
byte[] buf = new byte[1024];
is.read(buf);
do {
bos.write(buf);
} while (is.read(buf) != -1);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (is != null) is.close();
if (bos != null) bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

public static String getFileName(@NonNull Context context, Uri uri) {
String mimeType = context.getContentResolver().getType(uri);
String filename = null;

if (mimeType == null && context != null) {
String path = getPath(context, uri);
if (path == null) {
filename = getName(uri.toString());
} else {
File file = new File(path);
filename = file.getName();
}
} else {
Cursor returnCursor = context.getContentResolver().query(uri, null,
null, null, null);
if (returnCursor != null) {
int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
returnCursor.moveToFirst();
filename = returnCursor.getString(nameIndex);
returnCursor.close();
}
}

return filename;
}

public static String getName(String filename) {
if (filename == null) {
return null;
}
int index = filename.lastIndexOf('/');
return filename.substring(index + 1);
}

public static File getDocumentCacheDir(@NonNull Context context) {
File dir = new File(context.getCacheDir(), "documents");
if (!dir.exists()) {
dir.mkdirs();
}
logDir(context.getCacheDir());
logDir(dir);

return dir;
}

private static void logDir(File dir) {
if(!DEBUG) return;
Log.d(TAG, "Dir=" + dir);
File[] files = dir.listFiles();
for (File file : files) {
Log.d(TAG, "File=" + file.getPath());
}
}

@Nullable
public static File generateFileName(@Nullable String name, File directory) {
if (name == null) {
return null;
}

File file = new File(directory, name);

if (file.exists()) {
String fileName = name;
String extension = "";
int dotIndex = name.lastIndexOf('.');
if (dotIndex > 0) {
fileName = name.substring(0, dotIndex);
extension = name.substring(dotIndex);
}

int index = 0;

while (file.exists()) {
index++;
name = fileName + '(' + index + ')' + extension;
file = new File(directory, name);
}
}

try {
if (!file.createNewFile()) {
return null;
}
} catch (IOException e) {
Log.w(TAG, e);
return null;
}

logDir(directory);

return file;
}
}

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