华为手机选择文件返回uri root/storage/emulated/0/12356(1).xls

package com.nononsenseapps.filepicker;

import android.content.Intent;

import android.net.Uri;

import android.support.annotation.NonNull;

import android.support.annotation.Nullable;

import android.text.TextUtils;

import java.io.File;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import static com.nononsenseapps.filepicker.AbstractFilePickerActivity.EXTRA_ALLOW_MULTIPLE;

import static com.nononsenseapps.filepicker.AbstractFilePickerActivity.EXTRA_PATHS;

/**

* Some utility methods

*/

public class Utils {

private static final String SEP = "/";

/**

* Name is validated to be non-null, non-empty and not containing any

* slashes.

*

* @param name The name of the folder the user wishes to create.

*/

public static boolean isValidFileName(@Nullable String name) {

return !TextUtils.isEmpty(name)

&& !name.contains("/")

&& !name.equals(".")

&& !name.equals("..");

}

/**

* Append the second pathString to the first. The result will not end with a /.

* In case two absolute paths are given, e.g. /A/B/, and /C/D/, then the result

* will be /A/B/C/D

*

* Multiple slashes will be shortened to a single slash, so /A///B is equivalent to /A/B

*/

@NonNull

public static String appendPath(@NonNull String first,

@NonNull String second) {

String result = first + SEP + second;

while (result.contains("//")) {

result = result.replaceAll("//", "/");

}

if (result.length() > 1 && result.endsWith(SEP)) {

return result.substring(0, result.length() - 1);

} else {

return result;

}

}

/**

* Convert a uri generated by a fileprovider, like content://AUTHORITY/ROOT/actual/path

* to a file pointing to file:///actual/path

*

* Note that it only works for paths generated with `ROOT` as the path element. This is done if

* nnf_provider_paths.xml is used to define the file provider in the manifest.

*

* @param uri generated from a file provider

* @return Corresponding {@link File} object

*/

@NonNull

public static File getFileForUri(@NonNull Uri uri) {

String path = uri.getEncodedPath();

final int splitIndex = path.indexOf('/', 1);

final String tag = Uri.decode(path.substring(1, splitIndex));

path = Uri.decode(path.substring(splitIndex + 1));

if (!"root".equalsIgnoreCase(tag)) {

throw new IllegalArgumentException(

String.format("Can't decode paths to '%s', only for 'root' paths.",

tag));

}

final File root = new File("/");

File file = new File(root, path);

try {

file = file.getCanonicalFile();

} catch (IOException e) {

throw new IllegalArgumentException("Failed to resolve canonical path for " + file);

}

if (!file.getPath().startsWith(root.getPath())) {

throw new SecurityException("Resolved path jumped beyond configured root");

}

return file;

}

/**

* Parses the returned files from a filepicker activity into a nice list

*

* @param data returned by the {@link AbstractFilePickerActivity}

* @return a {@link List<Uri>} of files (uris) which the user selected in the picker.

*/

@NonNull

public static List<Uri> getSelectedFilesFromResult(@NonNull Intent data) {

List<Uri> result = new ArrayList<>();

if (data.getBooleanExtra(EXTRA_ALLOW_MULTIPLE, false)) {

List<String> paths = data.getStringArrayListExtra(EXTRA_PATHS);

if (paths != null) {

for (String path : paths) {

result.add(Uri.parse(path));

}

}

} else {

result.add(data.getData());

}

return result;

}

}

 

转自 https://github.com/spacecowboy/NoNonsense-FilePicker/blob/master/library/src/main/java/com/nononsenseapps/filepicker/Utils.java