Handle contentUri in copy function

android/src/main/java/com/RNFetchBlob/RNFetchBlobFS.java

@@ -1,5 +1,6 @@
 package com.RNFetchBlob;
 
+import android.content.ContentResolver;
 import android.content.res.AssetFileDescriptor;
 import android.media.MediaScannerConnection;
 import android.net.Uri;
@@ -663,19 +664,30 @@ static void exists(String path, Callback callback) {
             } catch (IOException e) {
                 callback.invoke(false, false);
             }
-        }
-        else {
+        } else if (path.startsWith(RNFetchBlobConst.FILE_PREFIX_CONTENT)) {
+          try {
+              InputStream in = RNFetchBlob.RCTContext.getContentResolver().openInputStream(Uri.parse(path));
+              if (in != null) {
+                  in.close();
+                  callback.invoke(true, false);
+              } else {
+                  callback.invoke(false, false);
+              }
+          } catch (Exception e) {
+              callback.invoke(false, false);
+          }
+        } else {
             path = normalizePath(path);
-            boolean exist = new File(path).exists();
-            boolean isDir = new File(path).isDirectory();
+            boolean exist = path != null ? new File(path).exists() : false;
+            boolean isDir = path != null ? new File(path).isDirectory() : false;
             callback.invoke(exist, isDir);
         }
     }
 
     /**
      * List content of folder
      * @param path Target folder
-     * @param callback  JS context callback
+     * @param promise  JS context promise
      */
     static void ls(String path, Promise promise) {
         try {
@@ -1093,6 +1105,8 @@ private void emitStreamEvent(String streamName, String event, String code, Strin
     private static InputStream inputStreamFromPath(String path) throws IOException {
         if (path.startsWith(RNFetchBlobConst.FILE_PREFIX_BUNDLE_ASSET)) {
             return RNFetchBlob.RCTContext.getAssets().open(path.replace(RNFetchBlobConst.FILE_PREFIX_BUNDLE_ASSET, ""));
+        } else if (path.startsWith(RNFetchBlobConst.FILE_PREFIX_CONTENT)) {
+            return RNFetchBlob.RCTContext.getContentResolver().openInputStream(Uri.parse(path));
         }
         return new FileInputStream(new File(path));
     }
@@ -1110,8 +1124,19 @@ private static boolean isPathExists(String path) {
                 return false;
             }
             return true;
-        }
-        else {
+        } else if (path.startsWith(RNFetchBlobConst.FILE_PREFIX_CONTENT)) {
+            try {
+                InputStream in = RNFetchBlob.RCTContext.getContentResolver().openInputStream(Uri.parse(path));
+                if (in != null) {
+                    in.close();
+                    return true;
+                } else {
+                    return false;
+                }
+            } catch (Exception e) {
+                return false;
+            }
+        } else {
             return new File(path).exists();
         }
 

android/src/main/java/com/RNFetchBlob/Utils/PathResolver.java

@@ -10,6 +10,8 @@
 import android.content.ContentUris;
 import android.os.Environment;
 import android.content.ContentResolver;
+import android.text.TextUtils;
+
 import com.RNFetchBlob.RNFetchBlobUtils;
 import java.io.File;
 import java.io.InputStream;
@@ -31,6 +33,10 @@ public static String getRealPathFromURI(final Context context, final Uri uri) {
 
                 if ("primary".equalsIgnoreCase(type)) {
                     return Environment.getExternalStorageDirectory() + "/" + split[1];
+                } else if ("raw".equalsIgnoreCase(type)) {
+                    return split[1];
+                } else if (type != null && !TextUtils.isEmpty(type)) {
+                    return "/storage/" + type + "/" + split[1];
                 }
 
                 // TODO handle non-primary volumes
@@ -55,7 +61,7 @@ else if (isDownloadsDocument(uri)) {
                     //something went wrong, but android should still be able to handle the original uri by returning null here (see readFile(...))
                     return null;
                 }
-                
+
             }
             // MediaProvider
             else if (isMediaDocument(uri)) {
@@ -70,6 +76,8 @@ else if (isMediaDocument(uri)) {
                     contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                 } else if ("audio".equals(type)) {
                     contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
+                } else if ("raw".equalsIgnoreCase(type)) {
+                    return split[1];
                 }
 
                 final String selection = "_id=?";
@@ -212,4 +220,4 @@ public static boolean isGooglePhotosUri(Uri uri) {
         return "com.google.android.apps.photos.content".equals(uri.getAuthority());
     }
 
-}
+}