Jwoo/ios a11y date picker (#7555)

* updated a11y lables

* clang format upudate

source/ios/AdaptiveCards/AdaptiveCards/AdaptiveCards/ACRChoiceSetCompactStyleView.mm

@@ -69,9 +69,8 @@ using namespace AdaptiveCards;
         self.isRequired = _validator.isRequired;
         self.hasValidationProperties = self.isRequired;
         auto inputLabel = choiceSet->GetLabel();
-        if (!inputLabel.empty()) {
-            _inputLabel = [NSString stringWithCString:inputLabel.c_str() encoding:NSUTF8StringEncoding];
-        }
+        _inputLabel = (!inputLabel.empty()) ? [NSString stringWithCString:inputLabel.c_str() encoding:NSUTF8StringEncoding] : @"";
+
 
         // configure UI
         _listView = [[UITableView alloc] init];
@@ -345,6 +344,7 @@ using namespace AdaptiveCards;
     cell.textLabel.text = [_filteredDataSource getItemAt:indexPath.row];
     cell.textLabel.numberOfLines = _wrapLines;
     cell.accessibilityLabel = [NSString stringWithFormat:@"%@, %@", _inputLabel, cell.textLabel.text];
+    cell.accessibilityValue = [NSString stringWithFormat:@"%ld of %ld", indexPath.row + 1, [self tableView:tableView numberOfRowsInSection:0]];
     cell.accessibilityIdentifier = [NSString stringWithFormat:@"%@, %@", self.id, cell.textLabel.text];
     cell.accessibilityTraits = UIAccessibilityTraitButton;
     return cell;

source/ios/AdaptiveCards/AdaptiveCards/AdaptiveCards/ACRChoiceSetViewDataSource.mm

@@ -172,11 +172,12 @@ const CGFloat padding = 2.0f;
     cell.textLabel.lineBreakMode = NSLineBreakByTruncatingTail;
     cell.selectionStyle = UITableViewCellSelectionStyleNone;
     if (!_accessibilityString) {
-        _accessibilityString = tableView.accessibilityLabel;
+        _accessibilityString = tableView.accessibilityLabel ? tableView.accessibilityLabel : @"";
         tableView.accessibilityLabel = nil;
     }
-    cell.accessibilityTraits = cell.accessibilityTraits | UIAccessibilityTraitButton;
-    cell.accessibilityLabel = [NSString stringWithFormat:@"%@, %@", _accessibilityString, title];
+    cell.accessibilityTraits = cell.accessibilityTraits;
+    cell.accessibilityLabel = [NSString stringWithFormat:@"%@, %@, %@", _accessibilityString, title, _isMultiChoicesAllowed ? @"check box" : @"radio button"];
+    cell.accessibilityHint = NSLocalizedString(@"double tap to select", nil);
 
     NSString *elementId = [NSString stringWithCString:_choiceSetDataSource->GetId().c_str()
                                              encoding:NSUTF8StringEncoding];

source/ios/AdaptiveCards/AdaptiveCards/AdaptiveCards/ACRInputDateRenderer.mm

@@ -39,6 +39,7 @@
 
     ACRInputLabelView *inputLabelView = [[ACRInputLabelView alloc] initInputLabelView:rootView acoConfig:acoConfig adptiveInputElement:dateInput inputView:dateField accessibilityItem:dateField.inputView viewGroup:viewGroup dataSource:nil];
     dateField.accessibilityTraits = UIAccessibilityTraitButton | UIAccessibilityTraitStaticText;
+    dateField.accessibilityHint = NSLocalizedString(@"opens the date picker", nil);
 
     [viewGroup addArrangedSubview:inputLabelView];
 

source/ios/AdaptiveCards/AdaptiveCards/AdaptiveCards/ACRInputTimeRenderer.mm

@@ -38,6 +38,8 @@
 
     ACRInputLabelView *inputLabelView = [[ACRInputLabelView alloc] initInputLabelView:rootView acoConfig:acoConfig adptiveInputElement:timeInput inputView:field accessibilityItem:field.inputView viewGroup:viewGroup dataSource:nil];
     field.accessibilityTraits = UIAccessibilityTraitButton | UIAccessibilityTraitStaticText;
+    field.accessibilityHint = NSLocalizedString(@"opens the time picker", nil);
+
     UIView *renderedview = inputLabelView;
 
     if (viewGroup) {