Add support for fontFamily on iOS (#233)

flutter-stripe · Jul 25, 2021 · 9804530 · 9804530
1 parent e50d4a5
commit 9804530
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Showing 4 changed files with 35 additions and 4 deletions.
diff --git a/example/fonts/OtomanopeeOne.ttf b/example/fonts/OtomanopeeOne.ttf
diff --git a/example/lib/screens/themes.dart b/example/lib/screens/themes.dart
@@ -72,6 +72,7 @@ class _ThemeCardExampleState extends State<ThemeCardExample> {
               child: CardField(
                 autofocus: true,
                 enablePostalCode: postalCodeEnabled,
+                style: TextStyle(fontFamily: 'OtomanopeeOne'),
                 onCardChanged: (_) {},
                 decoration: InputDecoration(
                   labelText: theme.inputDecorationTheme.floatingLabelBehavior ==

diff --git a/example/pubspec.yaml b/example/pubspec.yaml
@@ -24,4 +24,8 @@ flutter:
   uses-material-design: true
 
   assets:
-    - assets/
+    - assets/
+  fonts:
+    - family: OtomanopeeOne
+      fonts:
+        - asset: fonts/OtomanopeeOne.ttf
diff --git a/packages/stripe_ios/ios/Classes/CardFieldView.swift b/packages/stripe_ios/ios/Classes/CardFieldView.swift
@@ -216,13 +216,39 @@ class CardFieldView: NSObject, FlutterPlatformView, STPPaymentCardTextFieldDeleg
             if let textErrorColor = cardStyle["textErrorColor"]  as? String {
                 cardField.textErrorColor = UIColor(hexString: textErrorColor)
             }
-            if let fontSize = cardStyle["fontSize"]  as? Int {
-                cardField.font = UIFont.systemFont(ofSize: CGFloat(fontSize))
-            }
+
             if let placeholderColor = cardStyle["placeholderColor"]  as? String {
                 cardField.placeholderColor = UIColor(hexString: placeholderColor)
             }
 
+            let fontSize = CGFloat(cardStyle["fontSize"]  as? Int  ?? 18);
+            if let fontFamily = cardStyle["fontFamily"] as? String {
+                // Register font
+                registerFont(fontFamily)
+                let font =  UIFont(name: "\(fontFamily)", size: fontSize)
+                cardField.font = font ?? UIFont.systemFont(ofSize: fontSize)
+            } else {
+                cardField.font = UIFont.systemFont(ofSize: fontSize)
+            }
+        }
+    }
+
+    func registerFont(_ fontFamily: String) {
+        let controller = UIApplication.shared.delegate?.window??.rootViewController as? FlutterViewController;
+        let bundle = Bundle.main
+        let fontKey = controller?.lookupKey(forAsset: "fonts/\(fontFamily).ttf")
+        let path = bundle.path(forResource: fontKey, ofType: nil)
+        guard  let fontData = NSData(contentsOfFile: path ?? "") else {
+            return;
+        }
+        guard  let dataProvider = CGDataProvider(data: fontData) else {
+            return;
+        }
+        let fontRef = CGFont(dataProvider)
+        var errorRef: Unmanaged<CFError>? = nil
+        if let fr = fontRef {
+            CTFontManagerRegisterGraphicsFont(fr, &errorRef)
+
         }
     }