solved implementation exception

android/src/main/java/com/mr/flutter/plugin/filepicker/FilePickerPlugin.java

@@ -154,6 +154,11 @@ public void onMethodCall(final MethodCall call, final MethodChannel.Result rawRe
             return;
         }
 
+        if (call.method.equals("setImagePickerTitle")) {
+            this.delegate.setImagePickerTitle((String) arguments.get("title"));
+            return;
+        }
+
         fileType = FilePickerPlugin.resolveType(call.method);
         String[] allowedExtensions = null;
 
@@ -164,10 +169,6 @@ public void onMethodCall(final MethodCall call, final MethodChannel.Result rawRe
             withData = (boolean) arguments.get("withData");
             allowedExtensions = FileUtils.getMimeTypes((ArrayList<String>) arguments.get("allowedExtensions"));
         }
-        if (call.method.equals("setImagePickerTitle")) {
-            this.delegate.setImagePickerTitle((String) arguments.get("title"));
-            return;
-        }
         if (call.method != null && call.method.equals("custom") && (allowedExtensions == null || allowedExtensions.length == 0)) {
             result.error(TAG, "Unsupported filter. Make sure that you are only using the extension without the dot, (ie., jpg instead of .jpg). This could also have happened because you are using an unsupported file extension.  If the problem persists, you may want to consider using FileType.all instead.", null);
         } else {