Android获取图库图片Uri路径
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【中文标题】Android获取图库图片Uri路径【英文标题】：Android get Gallery image Uri path 【发布时间】：2011-10-19 14:44:03 【问题描述】：在 Activity 中，我可以从 Gallery 中选择一张图片，我需要它的 Uri 路径（在日志中，我的测试图片的 Uri 路径是 /content:/media/external/images/media/1）。
我收到了这个错误：
08-04 02:14:21.912: DEBUG/PHOTOUPLOADER(576): java.io.FileNotFoundException: /content:/media/external/images/media/1 (No such file or directory)
08-04 02:14:32.124: WARN/System.err(576): java.io.FileNotFoundException: /content:/media/external/images/media/1 (No such file or directory)
这是正确的文件路径格式吗？或者我应该把它变成sdcard\...\image.png之类的东西？
【问题讨论】：
致任何可能也有此问题的人：您确实需要文件的绝对路径。我将发布上面的方法，您可以使用该方法将此 uri 转换为路径 如果您有解决方案，请将其发布为答案。 我的意思是，将其发布为答案。因为它回答了问题，所以其他人认为它已回答。 【参考方案1】：public String getPath(Uri uri)
String[] projection = MediaStore.Images.Media.DATA ;
Cursor cursor = managedQuery(uri, projection, null, null, null);
startManagingCursor(cursor);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
【讨论】：
对于其他到达这里的人，请注意 managedQuery 是一个活动的方法，因此您可能需要提供一个活动。 第二个注意是光标应该关闭cursor.close()
来自文档：警告：不要在使用此方法获得的游标上调用 Cursor.close()，因为活动会在适当的时候为您执行此操作。
我想提一下 managedQuery 现在已弃用。如果有人为 android API 4 及更高版本开发应用程序，请添加支持库 v4 并使用以下代码：CursorLoader loader = new CursorLoader(context, uri, projection, null, null, null); Cursor cursor = loader.loadInBackground(); 而不是 Cursor cursor = managedQuery(uri, projection, null, null, null);
MediaStore.Images.Media.DATA 也已弃用，此方法将不再有效【参考方案2】：
val inputStream = context.contentResolver.openInputStream(uri)
就是你所需要的。
【讨论】：
这个答案怎么还没得到任何赞成票呢？这正是我们所需要的。谢谢楼主！ 这太容易了。它是否仅适用于某些 SDK 版本或其他东西？ @DavidKennedyContentResolver#openInputStream() 是在 API 级别 1 中添加的，所以不要这么认为
很好，但是我如何从这个 InputStream 中获取路径？
@whereismaxmax 你没有，想法是抽象出文件路径【参考方案3】：
这适用于所有 SDK 版本：
/**
* Get a file path from a Uri. This will get the the path for Storage Access
* Framework Documents, as well as the _data field for the MediaStore and
* other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @author paulburke
*/
public static String getPath(final Context context, final Uri uri)
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri))
// ExternalStorageProvider
if (isExternalStorageDocument(uri))
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type))
return Environment.getExternalStorageDirectory() + "/" + split[1];
// TODO handle non-primary volumes
// DownloadsProvider
else if (isDownloadsDocument(uri))
final String id = DocumentsContract.getDocumentId(uri);
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))
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;
final String selection = "_id=?";
final String[] selectionArgs = new String[]
split[1]
;
return getDataColumn(context, contentUri, selection, selectionArgs);
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme()))
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
// File
else if ("file".equalsIgnoreCase(uri.getScheme()))
return uri.getPath();
return null;
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
public static 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;
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri)
return "com.android.externalstorage.documents".equals(uri.getAuthority());
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri)
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri)
return "com.android.providers.media.documents".equals(uri.getAuthority());
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is Google Photos.
*/
public static boolean isGooglePhotosUri(Uri uri)
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
取自这里：https://github.com/iPaulPro/aFileChooser/blob/master/aFileChooser/src/com/ipaulpro/afilechooser/utils/FileUtils.java
【讨论】：
这在奥利奥上失败了【参考方案4】：试试
// open a URL connection to the Servlet
FileInputStream fileInputStream = new FileInputStream(sourceFile);
URL url = new URL(upLoadServerUri);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=uploaded_file;filename="+ fileName + "" + lineEnd);
dos.writeBytes(lineEnd);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0)
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
if(serverResponseCode == 200)
runOnUiThread(new Runnable()
public void run()
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+" http://www.androidtrainer.netne.net.com/uploads/"
+uploadFileName;
messageText.setText(msg);
Toast.makeText(UploadToServer.this, "File Upload Complete.",
Toast.LENGTH_SHORT).show();
);
//close the streams //
fileInputStream.close();
dos.flush();
dos.close();
catch (MalformedURLException ex)
dialog.dismiss();
ex.printStackTrace();
runOnUiThread(new Runnable()
public void run()
messageText.setText("MalformedURLException Exception : check script url.");
Toast.makeText(UploadToServer.this, "MalformedURLException",
Toast.LENGTH_SHORT).show();
);
Log.e("Upload file to server", "error: " + ex.getMessage(), ex);
catch (Exception e)
dialog.dismiss();
e.printStackTrace();
runOnUiThread(new Runnable()
public void run()
messageText.setText("Got Exception : see logcat ");
if you have problem not solve till you can visit here for complete example
【讨论】：
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