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fix: add listener in ThermionFlutterTextureBackedPlatform to unset viewer on dispose

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This commit is contained in:
Nick Fisher
2024-10-22 12:48:26 +08:00
parent de39af13d0
commit dbbb4d7123
1 changed files with 13 additions and 7 deletions
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20
thermion_flutter/thermion_flutter_ffi/lib/thermion_flutter_texture_backed_platform.dart
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@@ -14,12 +14,11 @@ import 'platform_texture.dart';
/// ///
/// An implementation of [ThermionFlutterPlatform] that uses /// An implementation of [ThermionFlutterPlatform] that uses
/// Flutter platform channels to create a rendering context, /// Flutter platform channels to create a rendering context,
/// resource loaders, and a texture that will be used as a render target /// resource loaders, and a texture that will be used as a render target
/// for a headless swapchain. /// for a headless swapchain.
/// ///
class ThermionFlutterTextureBackedPlatform class ThermionFlutterTextureBackedPlatform
extends ThermionFlutterMethodChannelInterface { extends ThermionFlutterMethodChannelInterface {
final _logger = Logger("ThermionFlutterTextureBackedPlatform"); final _logger = Logger("ThermionFlutterTextureBackedPlatform");
static SwapChain? _swapChain; static SwapChain? _swapChain;
@@ -46,20 +45,27 @@ class ThermionFlutterTextureBackedPlatform
if (Platform.isMacOS || Platform.isIOS) { if (Platform.isMacOS || Platform.isIOS) {
_swapChain = await viewer.createHeadlessSwapChain(1, 1); _swapChain = await viewer.createHeadlessSwapChain(1, 1);
} }
viewer.onDispose(() async {
_swapChain = null;
});
return viewer; return viewer;
} }
// On desktop platforms, textures are always created // On desktop platforms, textures are always created
Future<ThermionFlutterTexture?> createTexture(t.View view, int width, int height) async { Future<ThermionFlutterTexture?> createTexture(
var texture = FlutterPlatformTexture(channel, viewer!, view, (Platform.isMacOS || Platform.isIOS)? _swapChain : null); t.View view, int width, int height) async {
var texture = FlutterPlatformTexture(channel, viewer!, view,
(Platform.isMacOS || Platform.isIOS) ? _swapChain : null);
await texture.resize(width, height, 0, 0); await texture.resize(width, height, 0, 0);
return texture; return texture;
} }
@override @override
Future<ThermionFlutterWindow> createWindow(int width, int height, int offsetLeft, int offsetTop) { Future<ThermionFlutterWindow> createWindow(
int width, int height, int offsetLeft, int offsetTop) {
// TODO: implement createWindow // TODO: implement createWindow
throw UnimplementedError(); throw UnimplementedError();
} }
} }