prevent launching an empty Share intent

app/src/main/java/com/simplemobiletools/filemanager/fragments/ItemsFragment.java

@@ -346,6 +346,11 @@ public class ItemsFragment extends android.support.v4.app.Fragment
                 uris.add(Uri.fromFile(file));
         }
 
+        if (uris.isEmpty()) {
+            Utils.showToast(getContext(), R.string.no_files_selected);
+            return;
+        }
+
         final String shareTitle = getResources().getString(R.string.share_via);
         final Intent sendIntent = new Intent();
         sendIntent.setAction(Intent.ACTION_SEND_MULTIPLE);

app/src/main/res/values-it/strings.xml

@@ -17,6 +17,7 @@
     <string name="copy">Copia</string>
     <string name="share">Condividi</string>
     <string name="shared_files">Files shared via Simple File Manager</string>
+    <string name="no_files_selected">No files selected</string>
     <string name="copy_item">Copia elemento</string>
     <string name="copy_items">Copia elementi</string>
     <string name="move">Sposta</string>

app/src/main/res/values-ja/strings.xml

@@ -17,6 +17,7 @@
     <string name="copy">コピー</string>
     <string name="share">Dela</string>
     <string name="shared_files">Files shared via Simple File Manager</string>
+    <string name="no_files_selected">No files selected</string>
     <string name="copy_item">アイテムをコピー</string>
     <string name="copy_items">アイテムをコピー</string>
     <string name="move">移動</string>

app/src/main/res/values-sv/strings.xml

@@ -17,6 +17,7 @@
     <string name="copy">Kopiera</string>
     <string name="share">Dela</string>
     <string name="shared_files">Files shared via Simple File Manager</string>
+    <string name="no_files_selected">No files selected</string>
     <string name="copy_item">Kopiera objekt</string>
     <string name="copy_items">Kopiera objekt</string>
     <string name="move">Flytta</string>

app/src/main/res/values/strings.xml

@@ -17,6 +17,7 @@
     <string name="copy">Copy</string>
     <string name="share">Share</string>
     <string name="shared_files">Files shared via Simple File Manager</string>
+    <string name="no_files_selected">No files selected</string>
     <string name="copy_item">Copy item</string>
     <string name="copy_items">Copy items</string>
     <string name="move">Move</string>