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FlutterPlatformViews.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef FLUTTER_FLUTTERPLATFORMVIEWS_H_
6 #define FLUTTER_FLUTTERPLATFORMVIEWS_H_
7
8 #import <UIKit/UIKit.h>
9
10 #import "FlutterCodecs.h"
11 #import "FlutterMacros.h"
12
13 NS_ASSUME_NONNULL_BEGIN
14
15 /**
16 * Wraps a `UIView` for embedding in the Flutter hierarchy
17 */
18 @protocol FlutterPlatformView <NSObject>
19 /**
20 * Returns a reference to the `UIView` that is wrapped by this `FlutterPlatformView`.
21 */
22 - (UIView*)view;
23 @end
24
25 FLUTTER_DARWIN_EXPORT
26 @protocol FlutterPlatformViewFactory <NSObject>
27 /**
28 * Create a `FlutterPlatformView`.
29 *
30 * Implemented by iOS code that expose a `UIView` for embedding in a Flutter app.
31 *
32 * The implementation of this method should create a new `UIView` and return it.
33 *
34 * @param frame The rectangle for the newly created `UIView` measured in points.
35 * @param viewId A unique identifier for this `UIView`.
36 * @param args Parameters for creating the `UIView` sent from the Dart side of the Flutter app.
37 * If `createArgsCodec` is not implemented, or if no creation arguments were sent from the Dart
38 * code, this will be null. Otherwise this will be the value sent from the Dart code as decoded by
39 * `createArgsCodec`.
40 */
41 - (NSObject<FlutterPlatformView>*)createWithFrame:(CGRect)frame
42 viewIdentifier:(int64_t)viewId
43 arguments:(id _Nullable)args;
44
45 /**
46 * Returns the `FlutterMessageCodec` for decoding the args parameter of `createWithFrame`.
47 *
48 * Only needs to be implemented if `createWithFrame` needs an arguments parameter.
49 */
50 @optional
51 - (NSObject<FlutterMessageCodec>*)createArgsCodec;
52 @end
53
54 NS_ASSUME_NONNULL_END
55
56 #endif // FLUTTER_FLUTTERPLATFORMVIEWS_H_
NS_ASSUME_NONNULL_END
#define NS_ASSUME_NONNULL_END
Definition: FlutterMacros.h:20
-[FlutterPlatformViewFactory-p createArgsCodec]
NSObject< FlutterMessageCodec > * createArgsCodec()
NS_ASSUME_NONNULL_BEGIN
#define NS_ASSUME_NONNULL_BEGIN
Definition: FlutterMacros.h:19
FlutterMacros.h
-[FlutterPlatformView-p view]
UIView * view()
FlutterCodecs.h
FlutterPlatformViewFactory-p
Definition: FlutterPlatformViews.h:26
FlutterMessageCodec-p
Definition: FlutterCodecs.h:18
FLUTTER_DARWIN_EXPORT
#define FLUTTER_DARWIN_EXPORT
Definition: FlutterMacros.h:14
FlutterPlatformView-p
Definition: FlutterPlatformViews.h:18