Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT

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温柔的废话
温柔的废话 2020-11-22 02:44

Before KitKat (or before the new Gallery) the Intent.ACTION_GET_CONTENT returned a URI like this

content://media/external/images/media/39

19条回答
  •  逝去的感伤
    2020-11-22 03:18

    I've combine multiple answers into one working solution that results with file path

    Mime type is irrelevant for the example purpose.

                Intent intent;
                if(Build.VERSION.SDK_INT >= 19){
                    intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, false);
                    intent.addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION);
                }else{
                    intent = new Intent(Intent.ACTION_GET_CONTENT);
                }
                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                intent.setType("application/octet-stream");
                if(isAdded()){
                    startActivityForResult(intent, RESULT_CODE);
                }
    

    Handling result

        @Override
        public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if( requestCode == RESULT_CODE && resultCode == Activity.RESULT_OK) {
            Uri uri = data.getData();
            if (uri != null && !uri.toString().isEmpty()) {
                if(Build.VERSION.SDK_INT >= 19){
                    final int takeFlags = data.getFlags() & Intent.FLAG_GRANT_READ_URI_PERMISSION;
                    //noinspection ResourceType
                    getActivity().getContentResolver()
                            .takePersistableUriPermission(uri, takeFlags);
                }
                String filePath = FilePickUtils.getSmartFilePath(getActivity(), uri);
                // do what you need with it...
            }
        }
    }
    

    FilePickUtils

    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;
    
    public class FilePickUtils {
        private static String getPathDeprecated(Context ctx, Uri uri) {
            if( uri == null ) {
                return null;
            }
            String[] projection = { MediaStore.Images.Media.DATA };
            Cursor cursor = ctx.getContentResolver().query(uri, projection, null, null, null);
            if( cursor != null ){
                int column_index = cursor
                        .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                cursor.moveToFirst();
                return cursor.getString(column_index);
            }
            return uri.getPath();
        }
    
        public static String getSmartFilePath(Context ctx, Uri uri){
    
            if (Build.VERSION.SDK_INT < 19) {
                return getPathDeprecated(ctx, uri);
            }
            return  FilePickUtils.getPath(ctx, uri);
        }
    
        @SuppressLint("NewApi")
        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 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 column_index = cursor.getColumnIndexOrThrow(column);
                    return cursor.getString(column_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());
        }
    
    }
    

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