Get filepath and filename of selected gallery image in Android

后端 未结 9 2091
天命终不由人
天命终不由人 2020-11-27 04:47

I am creating an app which uploads a selected image from the gallery and uploads it to a web service. The webservice requires the filename of selected image plus a base64 e

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  • 2020-11-27 05:39

    Try this,

     file = new File(getPath(outputFileUri));
    
    
     public String getPath(Uri uri) {
        String[] projection = { MediaStore.Images.Media.DATA };
        @SuppressWarnings("deprecation")
        Cursor cursor = managedQuery(uri, projection, null, null, null);
        int column_index = cursor
                .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    }
    
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  • 2020-11-27 05:43
    public class RealFilePath {
        /**
         * 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
         */
        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());
        }
    }
    
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  • 2020-11-27 05:45

    Try this:

    Uri selectedImageURI = data.getData();
    imageFile = new File(getRealPathFromURI(selectedImageURI));
    

    And

        private String getRealPathFromURI(Uri contentURI) {
        Cursor cursor = getContentResolver().query(contentURI, null, null, null, null);
        if (cursor == null) { // Source is Dropbox or other similar local file path
            return contentURI.getPath();
        } else { 
            cursor.moveToFirst(); 
            int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA); 
            return cursor.getString(idx); 
        }
    }
    
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