Nicer Settings UX

lib/components/dialogs/simple_dialogs.dart

@@ -6,6 +6,54 @@ class SimpleDialogs {
 
   const SimpleDialogs(this.context);
 
+  Future<String> enterText({
+    String titleText,
+    String confirmText,
+    String cancelText,
+    String hintText,
+    String labelText,
+    bool multiLine = false,
+  }) async {
+    final TextEditingController controller = TextEditingController();
+    String input;
+    await showDialog(
+      context: context,
+      builder: (c) => AlertDialog(
+        title: Text(I18n.of(context).enterAUsername ?? titleText),
+        content: TextField(
+          controller: controller,
+          autofocus: true,
+          onSubmitted: (s) {
+            input = s;
+            Navigator.of(context).pop();
+          },
+          decoration: InputDecoration(
+            hintText: hintText,
+            labelText: labelText,
+            border: OutlineInputBorder(),
+          ),
+        ),
+        actions: <Widget>[
+          FlatButton(
+            child: Text(cancelText ?? I18n.of(context).close.toUpperCase(),
+                style: TextStyle(color: Colors.blueGrey)),
+            onPressed: () => Navigator.of(context).pop(),
+          ),
+          FlatButton(
+            child: Text(
+              confirmText ?? I18n.of(context).confirm.toUpperCase(),
+            ),
+            onPressed: () {
+              input = controller.text;
+              Navigator.of(context).pop();
+            },
+          ),
+        ],
+      ),
+    );
+    return input;
+  }
+
   Future<bool> askConfirmation({
     String titleText,
     String confirmText,