如何获取从 android 10 上的图库中选择的视频的路径
How to get the path of a video which is selected from gallery on android 10
我尝试了很多片段。这就是我现在正在使用的。我知道 MediaStore.Video.Media.DATA 是 deprecated.somehow 这个方法也适用于 android 10 但有时它会抛出
android.database.CursorIndexOutOfBoundsException: Index 0 requested, with a size of 0
public static String getvideoPath(Context context, Uri uri) {
try {
Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
cursor.moveToFirst();
String document_id = cursor.getString(0);
LogMessage.v("Document Id:: "+document_id);
if(document_id!=null){
document_id = document_id.substring(document_id.lastIndexOf(":") + 1);
cursor.close();
cursor = context.getContentResolver().query(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
null, MediaStore.Video.Media._ID + " = ? ", new String[]{document_id}, null);
cursor.moveToFirst();
String path = cursor.getString(cursor.getColumnIndex(MediaStore.Video.Media.DATA));
cursor.close();
return path;
}else
return getPath(context,uri);
} catch (Exception e) {
e.printStackTrace();
return getPath(context,uri);
}
}
private static String getPath(Context context,Uri uri){
try {
String[] proj = { MediaStore.Video.Media.DATA };
Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null);
cursor.moveToFirst();
String document_id = cursor.getString(0);
return document_id;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
使用以下方法获取从图库中选择的视频的真实路径
@SuppressLint("NewApi")
public String getPath( final Uri uri) {
// check here to KITKAT or new version
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
String selection = null;
String[] selectionArgs = null;
// DocumentProvider
if (isKitKat ) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
String fullPath = getPathFromExtSD(split);
if (fullPath != "") {
return fullPath;
} else {
return null;
}
}
// DownloadsProvider
if (isDownloadsDocument(uri)) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
final String id;
Cursor cursor = null;
try {
cursor = context.getContentResolver().query(uri, new String[]{MediaStore.MediaColumns.DISPLAY_NAME}, null, null, null);
if (cursor != null && cursor.moveToFirst()) {
String fileName = cursor.getString(0);
String path = Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName;
if (!TextUtils.isEmpty(path)) {
return path;
}
}
}
finally {
if (cursor != null)
cursor.close();
}
id = DocumentsContract.getDocumentId(uri);
if (!TextUtils.isEmpty(id)) {
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:", "");
}
String[] contentUriPrefixesToTry = new String[]{
"content://downloads/public_downloads",
"content://downloads/my_downloads"
};
for (String contentUriPrefix : contentUriPrefixesToTry) {
try {
final Uri contentUri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
} catch (NumberFormatException e) {
//In Android 8 and Android P the id is not a number
return uri.getPath().replaceFirst("^/document/raw:", "").replaceFirst("^raw:", "");
}
}
}
}
else {
final String id = DocumentsContract.getDocumentId(uri);
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:", "");
}
try {
contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
}
catch (NumberFormatException e) {
e.printStackTrace();
}
if (contentUri != null) {
return getDataColumn(context, contentUri, null, null);
}
}
}
// MediaProvider
if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
selection = "_id=?";
selectionArgs = new String[]{split[1]};
return getDataColumn(context, contentUri, selection,
selectionArgs);
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(uri);
}
if(isWhatsAppFile(uri)){
return getFilePathForWhatsApp(uri);
}
if ("content".equalsIgnoreCase(uri.getScheme())) {
if (isGooglePhotosUri(uri)) {
return uri.getLastPathSegment();
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(uri);
}
if( Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
{
// return getFilePathFromURI(context,uri);
return copyFileToInternalStorage(uri,"userfiles");
// return getRealPathFromURI(context,uri);
}
else
{
return getDataColumn(context, uri, null, null);
}
}
if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
}
else {
if(isWhatsAppFile(uri)){
return getFilePathForWhatsApp(uri);
}
if ("content".equalsIgnoreCase(uri.getScheme())) {
String[] projection = {
MediaStore.Images.Media.DATA
};
Cursor cursor = null;
try {
cursor = context.getContentResolver()
.query(uri, projection, selection, selectionArgs, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
if (cursor.moveToFirst()) {
return cursor.getString(column_index);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
return null;
}
private boolean fileExists(String filePath) {
File file = new File(filePath);
return file.exists();
}
private String getPathFromExtSD(String[] pathData) {
final String type = pathData[0];
final String relativePath = "/" + pathData[1];
String fullPath = "";
// on my Sony devices (4.4.4 & 5.1.1), `type` is a dynamic string
// something like "71F8-2C0A", some kind of unique id per storage
// don't know any API that can get the root path of that storage based on its id.
//
// so no "primary" type, but let the check here for other devices
if ("primary".equalsIgnoreCase(type)) {
fullPath = Environment.getExternalStorageDirectory() + relativePath;
if (fileExists(fullPath)) {
return fullPath;
}
}
// Environment.isExternalStorageRemovable() is `true` for external and internal storage
// so we cannot relay on it.
//
// instead, for each possible path, check if file exists
// we'll start with secondary storage as this could be our (physically) removable sd card
fullPath = System.getenv("SECONDARY_STORAGE") + relativePath;
if (fileExists(fullPath)) {
return fullPath;
}
fullPath = System.getenv("EXTERNAL_STORAGE") + relativePath;
if (fileExists(fullPath)) {
return fullPath;
}
return fullPath;
}
private String getDriveFilePath(Uri uri) {
Uri returnUri = uri;
Cursor returnCursor = context.getContentResolver().query(returnUri, null, null, null, null);
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
returnCursor.moveToFirst();
String name = (returnCursor.getString(nameIndex));
String size = (Long.toString(returnCursor.getLong(sizeIndex)));
File file = new File(context.getCacheDir(), name);
try {
InputStream inputStream = context.getContentResolver().openInputStream(uri);
FileOutputStream outputStream = new FileOutputStream(file);
int read = 0;
int maxBufferSize = 1 * 1024 * 1024;
int bytesAvailable = inputStream.available();
//int bufferSize = 1024;
int bufferSize = Math.min(bytesAvailable, maxBufferSize);
final byte[] buffers = new byte[bufferSize];
while ((read = inputStream.read(buffers)) != -1) {
outputStream.write(buffers, 0, read);
}
Log.e("File Size", "Size " + file.length());
inputStream.close();
outputStream.close();
Log.e("File Path", "Path " + file.getPath());
Log.e("File Size", "Size " + file.length());
} catch (Exception e) {
Log.e("Exception", e.getMessage());
}
return file.getPath();
}
/***
* Used for Android Q+
* @param uri
* @param newDirName if you want to create a directory, you can set this variable
* @return
*/
private String copyFileToInternalStorage(Uri uri,String newDirName) {
Uri returnUri = uri;
Cursor returnCursor = context.getContentResolver().query(returnUri, new String[]{
OpenableColumns.DISPLAY_NAME,OpenableColumns.SIZE
}, null, null, null);
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
returnCursor.moveToFirst();
String name = (returnCursor.getString(nameIndex));
String size = (Long.toString(returnCursor.getLong(sizeIndex)));
File output;
if(!newDirName.equals("")) {
File dir = new File(context.getFilesDir() + "/" + newDirName);
if (!dir.exists()) {
dir.mkdir();
}
output = new File(context.getFilesDir() + "/" + newDirName + "/" + name);
}
else{
output = new File(context.getFilesDir() + "/" + name);
}
try {
InputStream inputStream = context.getContentResolver().openInputStream(uri);
FileOutputStream outputStream = new FileOutputStream(output);
int read = 0;
int bufferSize = 1024;
final byte[] buffers = new byte[bufferSize];
while ((read = inputStream.read(buffers)) != -1) {
outputStream.write(buffers, 0, read);
}
inputStream.close();
outputStream.close();
}
catch (Exception e) {
Log.e("Exception", e.getMessage());
}
return output.getPath();
}
private String getFilePathForWhatsApp(Uri uri){
return copyFileToInternalStorage(uri,"whatsapp");
}
private String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {column};
try {
cursor = context.getContentResolver().query(uri, projection,
selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
}
finally {
if (cursor != null)
cursor.close();
}
return null;
}
private boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
private boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
private boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
private boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
public boolean isWhatsAppFile(Uri uri){
return "com.whatsapp.provider.media".equals(uri.getAuthority());
}
private boolean isGoogleDriveUri(Uri uri) {
return "com.google.android.apps.docs.storage".equals(uri.getAuthority()) || "com.google.android.apps.docs.storage.legacy".equals(uri.getAuthority());
}
编码愉快。
您不会尝试在 Android 10 中将 uri 转换为文件系统路径。
即使您管理路径也大多无法访问。
您不是 Whosebug 页面的常客 reader 是吗？
以上由 tushar 给出的答案是绝对正确的，我已经将该代码转换为 kotlin，可能对某人有帮助。
import android.annotation.SuppressLint
import android.content.ContentUris
import android.content.Context
import android.database.Cursor
import android.net.Uri
import android.os.Build
import android.os.Environment
import android.provider.DocumentsContract
import android.provider.MediaStore
import android.provider.OpenableColumns
import android.text.TextUtils
import timber.log.Timber
import java.io.File
import java.io.FileOutputStream
import java.io.InputStream
import kotlin.math.min
@SuppressLint("Recycle")
@Suppress("RECEIVER_NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS", "DEPRECATION")
object FileManager {
fun getPath(context: Context, uri: Uri): String? {
// check here to KITKAT or new version
val isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT
var selection: String? = null
var selectionArgs: Array<String>? = null
// DocumentProvider
if (isKitKat) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
val docId = DocumentsContract.getDocumentId(uri)
val split = docId.split(":".toRegex()).toTypedArray()
//val type = split[0]
val fullPath = getPathFromExtSD(split)
return if (fullPath !== "") {
fullPath
} else {
null
}
}
// DownloadsProvider
if (isDownloadsDocument(uri)) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
var cursor: Cursor? = null
try {
cursor = context.contentResolver.query(uri, arrayOf(MediaStore.MediaColumns.DISPLAY_NAME), null, null, null)
if (cursor != null && cursor.moveToFirst()) {
val fileName: String = cursor.getString(0)
val path: String = Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName
if (!TextUtils.isEmpty(path)) {
return path
}
}
} finally {
cursor?.close()
}
val id: String = DocumentsContract.getDocumentId(uri)
if (!TextUtils.isEmpty(id)) {
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:".toRegex(), "")
}
val contentUriPrefixesToTry = arrayOf("content://downloads/public_downloads", "content://downloads/my_downloads")
for (contentUriPrefix in contentUriPrefixesToTry) {
return try {
val contentUri: Uri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), java.lang.Long.valueOf(id))
getDataColumn(context, contentUri, null, null)
} catch (e: NumberFormatException) {
//In Android 8 and Android P the id is not a number
uri.path?.replaceFirst("^/document/raw:", "")?.replaceFirst("^raw:", "")
}
}
}
} else {
val id = DocumentsContract.getDocumentId(uri)
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:".toRegex(), "")
}
var contentUri : Uri?= null
try {
contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), java.lang.Long.valueOf(id))
} catch (e: NumberFormatException) {
e.printStackTrace()
}
if (contentUri != null) {
return getDataColumn(context, contentUri, null, null)
}
}
}
// MediaProvider
if (isMediaDocument(uri)) {
val docId = DocumentsContract.getDocumentId(uri)
val split = docId.split(":".toRegex()).toTypedArray()
val type = split[0]
var contentUri: Uri? = null
when (type) {
"image" -> {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI
}
"video" -> {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI
}
"audio" -> {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
}
}
selection = "_id=?"
selectionArgs = arrayOf(split[1])
return getDataColumn(context, contentUri!!, selection, selectionArgs)
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(context,uri)
}
if (isWhatsAppFile(uri)) {
return getFilePathForWhatsApp(context, uri)
}
if ("content".equals(uri.scheme, ignoreCase = true)) {
if (isGooglePhotosUri(uri)) {
return uri.lastPathSegment
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(context, uri)
}
return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
// return getFilePathFromURI(context,uri);
copyFileToInternalStorage(context, uri, "userfiles")
// return getRealPathFromURI(context,uri);
} else {
getDataColumn(context, uri, null, null)
}
}
if ("file".equals(uri.scheme, ignoreCase = true)) {
return uri.path
}
} else {
if (isWhatsAppFile(uri)) {
return getFilePathForWhatsApp(context, uri)
}
if ("content".equals(uri.scheme, ignoreCase = true)) {
val projection = arrayOf(MediaStore.Images.Media.DATA)
val cursor: Cursor
try {
cursor = context.contentResolver.query(uri, projection, selection, selectionArgs, null)!!
val columnIndex: Int = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA)
if (cursor.moveToFirst()) {
return cursor.getString(columnIndex)
}
} catch (e: Exception) {
e.printStackTrace()
}
}
}
return null
}
private fun fileExists(filePath: String): Boolean {
val file = File(filePath)
return file.exists()
}
private fun getPathFromExtSD(pathData: Array<String>): String {
val type = pathData[0]
val relativePath = "/" + pathData[1]
var fullPath : String
// on my Sony devices (4.4.4 & 5.1.1), `type` is a dynamic string
// something like "71F8-2C0A", some kind of unique id per storage
// don't know any API that can get the root path of that storage based on its id.
//
// so no "primary" type, but let the check here for other devices
if ("primary".equals(type, ignoreCase = true)) {
fullPath = Environment.getExternalStorageDirectory().toString() + relativePath
if (fileExists(fullPath)) {
return fullPath
}
}
// Environment.isExternalStorageRemovable() is `true` for external and internal storage
// so we cannot relay on it.
//
// instead, for each possible path, check if file exists
// we'll start with secondary storage as this could be our (physically) removable sd card
fullPath = System.getenv("SECONDARY_STORAGE") + relativePath
if (fileExists(fullPath)) {
return fullPath
}
fullPath = System.getenv("EXTERNAL_STORAGE") + relativePath
return if (fileExists(fullPath)) {
fullPath
} else fullPath
}
private fun getDriveFilePath(context: Context, uri: Uri): String? {
val returnUri: Uri = uri
val returnCursor: Cursor = context.contentResolver.query(returnUri, null, null, null, null)!!
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
val nameIndex: Int = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
// val sizeIndex: Int = returnCursor.getColumnIndex(OpenableColumns.SIZE)
returnCursor.moveToFirst()
val name: String = returnCursor.getString(nameIndex)
// val size = returnCursor.getLong(sizeIndex).toString()
val file = File(context.cacheDir, name)
try {
val inputStream: InputStream? = context.contentResolver.openInputStream(uri)
val outputStream = FileOutputStream(file)
var read : Int
val maxBufferSize = 1 * 1024 * 1024
val bytesAvailable: Int = inputStream?.available()!!
//int bufferSize = 1024;
val bufferSize = min(bytesAvailable, maxBufferSize)
val buffers = ByteArray(bufferSize)
while (inputStream.read(buffers).also { read = it } != -1) {
outputStream.write(buffers, 0, read)
}
Timber.d("File Size Size ${file.length()}")
inputStream.close()
outputStream.close()
Timber.d("File Path Path ${file.path}")
Timber.d("File Size Size ${file.length()}")
} catch (e: Exception) {
Timber.e("Exception ${e.message}")
}
return file.path
}
/***
* Used for Android Q+
* @param uri
* @param newDirName if you want to create a directory, you can set this variable
* @return
*/
private fun copyFileToInternalStorage(context: Context, uri: Uri, newDirName: String): String? {
val returnUri: Uri = uri
val returnCursor: Cursor = context.contentResolver.query(returnUri, arrayOf(OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE), null, null, null)!!
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
val nameIndex: Int = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
//val sizeIndex: Int = returnCursor.getColumnIndex(OpenableColumns.SIZE)
returnCursor.moveToFirst()
val name: String = returnCursor.getString(nameIndex)
// val size = returnCursor.getLong(sizeIndex).toString()
val output: File = if (newDirName != "") {
val dir = File(context.filesDir.toString() + "/" + newDirName)
if (!dir.exists()) {
dir.mkdir()
}
File(context.filesDir.toString() + "/" + newDirName + "/" + name)
} else {
File(context.filesDir.toString() + "/" + name)
}
try {
val inputStream: InputStream? = context.contentResolver.openInputStream(uri)
val outputStream = FileOutputStream(output)
var read = 0
val bufferSize = 1024
val buffers = ByteArray(bufferSize)
while (inputStream?.read(buffers).also {
if (it != null) {
read = it
}
} != -1) {
outputStream.write(buffers, 0, read)
}
inputStream?.close()
outputStream.close()
} catch (e: Exception) {
Timber.e("Exception${e.message}")
}
return output.path
}
private fun getFilePathForWhatsApp(context: Context, uri: Uri): String? {
return copyFileToInternalStorage(context, uri, "whatsapp")
}
private fun getDataColumn(context: Context, uri: Uri, selection: String?, selectionArgs: Array<String>?): String? {
var cursor: Cursor? = null
val column = "_data"
val projection = arrayOf(column)
try {
cursor = context.contentResolver.query(uri, projection, selection, selectionArgs, null)
if (cursor != null && cursor.moveToFirst()) {
val index: Int = cursor.getColumnIndexOrThrow(column)
return cursor.getString(index)
}
} finally {
cursor?.close()
}
return null
}
private fun isExternalStorageDocument(uri: Uri): Boolean {
return "com.android.externalstorage.documents" == uri.authority
}
private fun isDownloadsDocument(uri: Uri): Boolean {
return "com.android.providers.downloads.documents" == uri.authority
}
private fun isMediaDocument(uri: Uri): Boolean {
return "com.android.providers.media.documents" == uri.authority
}
private fun isGooglePhotosUri(uri: Uri): Boolean {
return "com.google.android.apps.photos.content" == uri.authority
}
private fun isWhatsAppFile(uri: Uri): Boolean {
return "com.whatsapp.provider.media" == uri.authority
}
private fun isGoogleDriveUri(uri: Uri): Boolean {
return "com.google.android.apps.docs.storage" == uri.authority || "com.google.android.apps.docs.storage.legacy" == uri.authority
}
}
发射
val intent = Intent(ACTION_GET_CONTENT)
intent.apply {
type = "application/pdf"
addCategory(Intent.CATEGORY_OPENABLE)
}
resultLauncher.launch(intent)
你可以在你的活动中得到结果
private val resultLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
if (result.resultCode == Activity.RESULT_OK) {
var file: File? = null
val disposable = Single.fromCallable {
val filePath = FileManager.getPath(this, result?.data?.data!!)
file = File(filePath)
}.subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).subscribe({
Timber.d("==File==Path===${file?.path}\nname==${file?.name}\nabsolutePath =${file?.absolutePath}")
}, {
it.printStackTrace()
})
}
}
我尝试了很多片段。这就是我现在正在使用的。我知道 MediaStore.Video.Media.DATA 是 deprecated.somehow 这个方法也适用于 android 10 但有时它会抛出
android.database.CursorIndexOutOfBoundsException: Index 0 requested, with a size of 0
public static String getvideoPath(Context context, Uri uri) {
try {
Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
cursor.moveToFirst();
String document_id = cursor.getString(0);
LogMessage.v("Document Id:: "+document_id);
if(document_id!=null){
document_id = document_id.substring(document_id.lastIndexOf(":") + 1);
cursor.close();
cursor = context.getContentResolver().query(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
null, MediaStore.Video.Media._ID + " = ? ", new String[]{document_id}, null);
cursor.moveToFirst();
String path = cursor.getString(cursor.getColumnIndex(MediaStore.Video.Media.DATA));
cursor.close();
return path;
}else
return getPath(context,uri);
} catch (Exception e) {
e.printStackTrace();
return getPath(context,uri);
}
}
private static String getPath(Context context,Uri uri){
try {
String[] proj = { MediaStore.Video.Media.DATA };
Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null);
cursor.moveToFirst();
String document_id = cursor.getString(0);
return document_id;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
使用以下方法获取从图库中选择的视频的真实路径
@SuppressLint("NewApi")
public String getPath( final Uri uri) {
// check here to KITKAT or new version
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
String selection = null;
String[] selectionArgs = null;
// DocumentProvider
if (isKitKat ) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
String fullPath = getPathFromExtSD(split);
if (fullPath != "") {
return fullPath;
} else {
return null;
}
}
// DownloadsProvider
if (isDownloadsDocument(uri)) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
final String id;
Cursor cursor = null;
try {
cursor = context.getContentResolver().query(uri, new String[]{MediaStore.MediaColumns.DISPLAY_NAME}, null, null, null);
if (cursor != null && cursor.moveToFirst()) {
String fileName = cursor.getString(0);
String path = Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName;
if (!TextUtils.isEmpty(path)) {
return path;
}
}
}
finally {
if (cursor != null)
cursor.close();
}
id = DocumentsContract.getDocumentId(uri);
if (!TextUtils.isEmpty(id)) {
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:", "");
}
String[] contentUriPrefixesToTry = new String[]{
"content://downloads/public_downloads",
"content://downloads/my_downloads"
};
for (String contentUriPrefix : contentUriPrefixesToTry) {
try {
final Uri contentUri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
} catch (NumberFormatException e) {
//In Android 8 and Android P the id is not a number
return uri.getPath().replaceFirst("^/document/raw:", "").replaceFirst("^raw:", "");
}
}
}
}
else {
final String id = DocumentsContract.getDocumentId(uri);
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:", "");
}
try {
contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
}
catch (NumberFormatException e) {
e.printStackTrace();
}
if (contentUri != null) {
return getDataColumn(context, contentUri, null, null);
}
}
}
// MediaProvider
if (isMediaDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
selection = "_id=?";
selectionArgs = new String[]{split[1]};
return getDataColumn(context, contentUri, selection,
selectionArgs);
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(uri);
}
if(isWhatsAppFile(uri)){
return getFilePathForWhatsApp(uri);
}
if ("content".equalsIgnoreCase(uri.getScheme())) {
if (isGooglePhotosUri(uri)) {
return uri.getLastPathSegment();
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(uri);
}
if( Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
{
// return getFilePathFromURI(context,uri);
return copyFileToInternalStorage(uri,"userfiles");
// return getRealPathFromURI(context,uri);
}
else
{
return getDataColumn(context, uri, null, null);
}
}
if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
}
else {
if(isWhatsAppFile(uri)){
return getFilePathForWhatsApp(uri);
}
if ("content".equalsIgnoreCase(uri.getScheme())) {
String[] projection = {
MediaStore.Images.Media.DATA
};
Cursor cursor = null;
try {
cursor = context.getContentResolver()
.query(uri, projection, selection, selectionArgs, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
if (cursor.moveToFirst()) {
return cursor.getString(column_index);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
return null;
}
private boolean fileExists(String filePath) {
File file = new File(filePath);
return file.exists();
}
private String getPathFromExtSD(String[] pathData) {
final String type = pathData[0];
final String relativePath = "/" + pathData[1];
String fullPath = "";
// on my Sony devices (4.4.4 & 5.1.1), `type` is a dynamic string
// something like "71F8-2C0A", some kind of unique id per storage
// don't know any API that can get the root path of that storage based on its id.
//
// so no "primary" type, but let the check here for other devices
if ("primary".equalsIgnoreCase(type)) {
fullPath = Environment.getExternalStorageDirectory() + relativePath;
if (fileExists(fullPath)) {
return fullPath;
}
}
// Environment.isExternalStorageRemovable() is `true` for external and internal storage
// so we cannot relay on it.
//
// instead, for each possible path, check if file exists
// we'll start with secondary storage as this could be our (physically) removable sd card
fullPath = System.getenv("SECONDARY_STORAGE") + relativePath;
if (fileExists(fullPath)) {
return fullPath;
}
fullPath = System.getenv("EXTERNAL_STORAGE") + relativePath;
if (fileExists(fullPath)) {
return fullPath;
}
return fullPath;
}
private String getDriveFilePath(Uri uri) {
Uri returnUri = uri;
Cursor returnCursor = context.getContentResolver().query(returnUri, null, null, null, null);
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
returnCursor.moveToFirst();
String name = (returnCursor.getString(nameIndex));
String size = (Long.toString(returnCursor.getLong(sizeIndex)));
File file = new File(context.getCacheDir(), name);
try {
InputStream inputStream = context.getContentResolver().openInputStream(uri);
FileOutputStream outputStream = new FileOutputStream(file);
int read = 0;
int maxBufferSize = 1 * 1024 * 1024;
int bytesAvailable = inputStream.available();
//int bufferSize = 1024;
int bufferSize = Math.min(bytesAvailable, maxBufferSize);
final byte[] buffers = new byte[bufferSize];
while ((read = inputStream.read(buffers)) != -1) {
outputStream.write(buffers, 0, read);
}
Log.e("File Size", "Size " + file.length());
inputStream.close();
outputStream.close();
Log.e("File Path", "Path " + file.getPath());
Log.e("File Size", "Size " + file.length());
} catch (Exception e) {
Log.e("Exception", e.getMessage());
}
return file.getPath();
}
/***
* Used for Android Q+
* @param uri
* @param newDirName if you want to create a directory, you can set this variable
* @return
*/
private String copyFileToInternalStorage(Uri uri,String newDirName) {
Uri returnUri = uri;
Cursor returnCursor = context.getContentResolver().query(returnUri, new String[]{
OpenableColumns.DISPLAY_NAME,OpenableColumns.SIZE
}, null, null, null);
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
returnCursor.moveToFirst();
String name = (returnCursor.getString(nameIndex));
String size = (Long.toString(returnCursor.getLong(sizeIndex)));
File output;
if(!newDirName.equals("")) {
File dir = new File(context.getFilesDir() + "/" + newDirName);
if (!dir.exists()) {
dir.mkdir();
}
output = new File(context.getFilesDir() + "/" + newDirName + "/" + name);
}
else{
output = new File(context.getFilesDir() + "/" + name);
}
try {
InputStream inputStream = context.getContentResolver().openInputStream(uri);
FileOutputStream outputStream = new FileOutputStream(output);
int read = 0;
int bufferSize = 1024;
final byte[] buffers = new byte[bufferSize];
while ((read = inputStream.read(buffers)) != -1) {
outputStream.write(buffers, 0, read);
}
inputStream.close();
outputStream.close();
}
catch (Exception e) {
Log.e("Exception", e.getMessage());
}
return output.getPath();
}
private String getFilePathForWhatsApp(Uri uri){
return copyFileToInternalStorage(uri,"whatsapp");
}
private String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {column};
try {
cursor = context.getContentResolver().query(uri, projection,
selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
}
finally {
if (cursor != null)
cursor.close();
}
return null;
}
private boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
private boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
private boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
private boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
public boolean isWhatsAppFile(Uri uri){
return "com.whatsapp.provider.media".equals(uri.getAuthority());
}
private boolean isGoogleDriveUri(Uri uri) {
return "com.google.android.apps.docs.storage".equals(uri.getAuthority()) || "com.google.android.apps.docs.storage.legacy".equals(uri.getAuthority());
}
编码愉快。
您不会尝试在 Android 10 中将 uri 转换为文件系统路径。
即使您管理路径也大多无法访问。
您不是 Whosebug 页面的常客 reader 是吗？
以上由 tushar 给出的答案是绝对正确的，我已经将该代码转换为 kotlin，可能对某人有帮助。
import android.annotation.SuppressLint
import android.content.ContentUris
import android.content.Context
import android.database.Cursor
import android.net.Uri
import android.os.Build
import android.os.Environment
import android.provider.DocumentsContract
import android.provider.MediaStore
import android.provider.OpenableColumns
import android.text.TextUtils
import timber.log.Timber
import java.io.File
import java.io.FileOutputStream
import java.io.InputStream
import kotlin.math.min
@SuppressLint("Recycle")
@Suppress("RECEIVER_NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS", "DEPRECATION")
object FileManager {
fun getPath(context: Context, uri: Uri): String? {
// check here to KITKAT or new version
val isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT
var selection: String? = null
var selectionArgs: Array<String>? = null
// DocumentProvider
if (isKitKat) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
val docId = DocumentsContract.getDocumentId(uri)
val split = docId.split(":".toRegex()).toTypedArray()
//val type = split[0]
val fullPath = getPathFromExtSD(split)
return if (fullPath !== "") {
fullPath
} else {
null
}
}
// DownloadsProvider
if (isDownloadsDocument(uri)) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
var cursor: Cursor? = null
try {
cursor = context.contentResolver.query(uri, arrayOf(MediaStore.MediaColumns.DISPLAY_NAME), null, null, null)
if (cursor != null && cursor.moveToFirst()) {
val fileName: String = cursor.getString(0)
val path: String = Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName
if (!TextUtils.isEmpty(path)) {
return path
}
}
} finally {
cursor?.close()
}
val id: String = DocumentsContract.getDocumentId(uri)
if (!TextUtils.isEmpty(id)) {
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:".toRegex(), "")
}
val contentUriPrefixesToTry = arrayOf("content://downloads/public_downloads", "content://downloads/my_downloads")
for (contentUriPrefix in contentUriPrefixesToTry) {
return try {
val contentUri: Uri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), java.lang.Long.valueOf(id))
getDataColumn(context, contentUri, null, null)
} catch (e: NumberFormatException) {
//In Android 8 and Android P the id is not a number
uri.path?.replaceFirst("^/document/raw:", "")?.replaceFirst("^raw:", "")
}
}
}
} else {
val id = DocumentsContract.getDocumentId(uri)
if (id.startsWith("raw:")) {
return id.replaceFirst("raw:".toRegex(), "")
}
var contentUri : Uri?= null
try {
contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), java.lang.Long.valueOf(id))
} catch (e: NumberFormatException) {
e.printStackTrace()
}
if (contentUri != null) {
return getDataColumn(context, contentUri, null, null)
}
}
}
// MediaProvider
if (isMediaDocument(uri)) {
val docId = DocumentsContract.getDocumentId(uri)
val split = docId.split(":".toRegex()).toTypedArray()
val type = split[0]
var contentUri: Uri? = null
when (type) {
"image" -> {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI
}
"video" -> {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI
}
"audio" -> {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
}
}
selection = "_id=?"
selectionArgs = arrayOf(split[1])
return getDataColumn(context, contentUri!!, selection, selectionArgs)
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(context,uri)
}
if (isWhatsAppFile(uri)) {
return getFilePathForWhatsApp(context, uri)
}
if ("content".equals(uri.scheme, ignoreCase = true)) {
if (isGooglePhotosUri(uri)) {
return uri.lastPathSegment
}
if (isGoogleDriveUri(uri)) {
return getDriveFilePath(context, uri)
}
return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
// return getFilePathFromURI(context,uri);
copyFileToInternalStorage(context, uri, "userfiles")
// return getRealPathFromURI(context,uri);
} else {
getDataColumn(context, uri, null, null)
}
}
if ("file".equals(uri.scheme, ignoreCase = true)) {
return uri.path
}
} else {
if (isWhatsAppFile(uri)) {
return getFilePathForWhatsApp(context, uri)
}
if ("content".equals(uri.scheme, ignoreCase = true)) {
val projection = arrayOf(MediaStore.Images.Media.DATA)
val cursor: Cursor
try {
cursor = context.contentResolver.query(uri, projection, selection, selectionArgs, null)!!
val columnIndex: Int = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA)
if (cursor.moveToFirst()) {
return cursor.getString(columnIndex)
}
} catch (e: Exception) {
e.printStackTrace()
}
}
}
return null
}
private fun fileExists(filePath: String): Boolean {
val file = File(filePath)
return file.exists()
}
private fun getPathFromExtSD(pathData: Array<String>): String {
val type = pathData[0]
val relativePath = "/" + pathData[1]
var fullPath : String
// on my Sony devices (4.4.4 & 5.1.1), `type` is a dynamic string
// something like "71F8-2C0A", some kind of unique id per storage
// don't know any API that can get the root path of that storage based on its id.
//
// so no "primary" type, but let the check here for other devices
if ("primary".equals(type, ignoreCase = true)) {
fullPath = Environment.getExternalStorageDirectory().toString() + relativePath
if (fileExists(fullPath)) {
return fullPath
}
}
// Environment.isExternalStorageRemovable() is `true` for external and internal storage
// so we cannot relay on it.
//
// instead, for each possible path, check if file exists
// we'll start with secondary storage as this could be our (physically) removable sd card
fullPath = System.getenv("SECONDARY_STORAGE") + relativePath
if (fileExists(fullPath)) {
return fullPath
}
fullPath = System.getenv("EXTERNAL_STORAGE") + relativePath
return if (fileExists(fullPath)) {
fullPath
} else fullPath
}
private fun getDriveFilePath(context: Context, uri: Uri): String? {
val returnUri: Uri = uri
val returnCursor: Cursor = context.contentResolver.query(returnUri, null, null, null, null)!!
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
val nameIndex: Int = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
// val sizeIndex: Int = returnCursor.getColumnIndex(OpenableColumns.SIZE)
returnCursor.moveToFirst()
val name: String = returnCursor.getString(nameIndex)
// val size = returnCursor.getLong(sizeIndex).toString()
val file = File(context.cacheDir, name)
try {
val inputStream: InputStream? = context.contentResolver.openInputStream(uri)
val outputStream = FileOutputStream(file)
var read : Int
val maxBufferSize = 1 * 1024 * 1024
val bytesAvailable: Int = inputStream?.available()!!
//int bufferSize = 1024;
val bufferSize = min(bytesAvailable, maxBufferSize)
val buffers = ByteArray(bufferSize)
while (inputStream.read(buffers).also { read = it } != -1) {
outputStream.write(buffers, 0, read)
}
Timber.d("File Size Size ${file.length()}")
inputStream.close()
outputStream.close()
Timber.d("File Path Path ${file.path}")
Timber.d("File Size Size ${file.length()}")
} catch (e: Exception) {
Timber.e("Exception ${e.message}")
}
return file.path
}
/***
* Used for Android Q+
* @param uri
* @param newDirName if you want to create a directory, you can set this variable
* @return
*/
private fun copyFileToInternalStorage(context: Context, uri: Uri, newDirName: String): String? {
val returnUri: Uri = uri
val returnCursor: Cursor = context.contentResolver.query(returnUri, arrayOf(OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE), null, null, null)!!
/*
* Get the column indexes of the data in the Cursor,
* * move to the first row in the Cursor, get the data,
* * and display it.
* */
val nameIndex: Int = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
//val sizeIndex: Int = returnCursor.getColumnIndex(OpenableColumns.SIZE)
returnCursor.moveToFirst()
val name: String = returnCursor.getString(nameIndex)
// val size = returnCursor.getLong(sizeIndex).toString()
val output: File = if (newDirName != "") {
val dir = File(context.filesDir.toString() + "/" + newDirName)
if (!dir.exists()) {
dir.mkdir()
}
File(context.filesDir.toString() + "/" + newDirName + "/" + name)
} else {
File(context.filesDir.toString() + "/" + name)
}
try {
val inputStream: InputStream? = context.contentResolver.openInputStream(uri)
val outputStream = FileOutputStream(output)
var read = 0
val bufferSize = 1024
val buffers = ByteArray(bufferSize)
while (inputStream?.read(buffers).also {
if (it != null) {
read = it
}
} != -1) {
outputStream.write(buffers, 0, read)
}
inputStream?.close()
outputStream.close()
} catch (e: Exception) {
Timber.e("Exception${e.message}")
}
return output.path
}
private fun getFilePathForWhatsApp(context: Context, uri: Uri): String? {
return copyFileToInternalStorage(context, uri, "whatsapp")
}
private fun getDataColumn(context: Context, uri: Uri, selection: String?, selectionArgs: Array<String>?): String? {
var cursor: Cursor? = null
val column = "_data"
val projection = arrayOf(column)
try {
cursor = context.contentResolver.query(uri, projection, selection, selectionArgs, null)
if (cursor != null && cursor.moveToFirst()) {
val index: Int = cursor.getColumnIndexOrThrow(column)
return cursor.getString(index)
}
} finally {
cursor?.close()
}
return null
}
private fun isExternalStorageDocument(uri: Uri): Boolean {
return "com.android.externalstorage.documents" == uri.authority
}
private fun isDownloadsDocument(uri: Uri): Boolean {
return "com.android.providers.downloads.documents" == uri.authority
}
private fun isMediaDocument(uri: Uri): Boolean {
return "com.android.providers.media.documents" == uri.authority
}
private fun isGooglePhotosUri(uri: Uri): Boolean {
return "com.google.android.apps.photos.content" == uri.authority
}
private fun isWhatsAppFile(uri: Uri): Boolean {
return "com.whatsapp.provider.media" == uri.authority
}
private fun isGoogleDriveUri(uri: Uri): Boolean {
return "com.google.android.apps.docs.storage" == uri.authority || "com.google.android.apps.docs.storage.legacy" == uri.authority
}
}
发射
val intent = Intent(ACTION_GET_CONTENT)
intent.apply {
type = "application/pdf"
addCategory(Intent.CATEGORY_OPENABLE)
}
resultLauncher.launch(intent)
你可以在你的活动中得到结果
private val resultLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
if (result.resultCode == Activity.RESULT_OK) {
var file: File? = null
val disposable = Single.fromCallable {
val filePath = FileManager.getPath(this, result?.data?.data!!)
file = File(filePath)
}.subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).subscribe({
Timber.d("==File==Path===${file?.path}\nname==${file?.name}\nabsolutePath =${file?.absolutePath}")
}, {
it.printStackTrace()
})
}
}