RenderSurface 的作用是提供给 Flutter 光栅化引擎一个渲染的输出 Surface,最终这个 Surface 会输出到屏幕上,实现 Flutter 渲染流水线的上屏(display)。Flutter 原生引擎支持两种不同的 RenderSurface - SurfaceView 和 TextureView。我们的定制引擎增加了新的 RenderSurface 类型 ImageView 的支持(原生的 FlutterImageView...
FlutterRenderer借助FlutterJNI,将Flutter的纹理渲染到Surface中,从而实现Flutter的画面渲染。 最后再整理下流程,最开始在FlutterActivityAndFragmentDelegate的onCreateView中,我们创建FlutterView,并调用FlutterView实例的attachToFlutterEngine方法将Engine的FlutterRenderer和RenderSurface的具体实现(FlutterSurfaceView或者是FlutterText...
FlutterRenderer借助FlutterJNI,将Flutter的纹理渲染到Surface中,从而实现Flutter的画面渲染。 最后再整理下流程,最开始在FlutterActivityAndFragmentDelegate的onCreateView中,我们创建FlutterView,并调用FlutterView实例的attachToFlutterEngine方法将Engine的FlutterRenderer和RenderSurface的具体实现(FlutterSurfaceView或者是FlutterText...
//@rendering/binding.dartvoiddrawFrame(){assert(renderView!=null);pipelineOwner.flushLayout();pipelineOwner.flushCompositingBits();pipelineOwner.flushPaint();renderView.compositeFrame();// this sends the bits to the GPUpipelineOwner.flushSemantics();// this also sends the semantics to the OS.} ...
当SurfaceFrame::Submit 的时候: Flush 绘制图层树完毕的 SkCanvas,相当于请求 GrContext 创建一个 MTLCommandBuffer,然后再创建绑定 SkSurface 包装的 CAMetalDrawable 的MTLRenderCommandEncoder对象,根据输入的 2D绘制指令生成 Metal GPU 绘制指令并 Encode,最后结束 Encode 并 Commit MTLCommandBuffer; ...
//用来把Flutter Dart UI渲染到屏幕上,renderer会attach到RenderSurface上。 @NonNull private final FlutterRenderer renderer; //Dart执行器。 @NonNull private final DartExecutor dartExecutor; //用来管理安卓组件和Flutter plugins插件。 @NonNull private final FlutterEngineConnectionRegistry pluginRegistry; ...
renderSurface.attachToRenderer(flutterRenderer); flutterRenderer.addIsDisplayingFlutterUiListener(flutterUiDisplayListener); this.flutterEngine.getPlatformViewsController().attachToView(this); …… // Push View and Context related information from Android to Flutter. ...
但是,如果控件树种某个节点的类型发生了变化,则element树和render树中的对应节点也需要重新创建: 外卖全品类页面实践 在调研了Flutter的各项特性和实现原理之后,外卖计划灰度上线Flutter版的全品类页面。对于将Flutter页面作为App的一部分这种集成模式,官方并没有提供完善的支持,所以我们首先需要了解Flutter是如何编译、打包...
surface = AcquireRenderSurface(size, root_surface_transformation); if (surface == nullptr) { return nullptr; } surface->getCanvas()->setMatrix(root_surface_transformation); SurfaceFrame::SubmitCallback submit_callback = [weak = weak_factory_.GetWeakPtr()](const SurfaceFrame& surface_frame, ...
// 自己的显示类,Java 侧创建 Surface 之后传递其引用 id 到 自己封装的 SkiaSurfaceView c++ 类中 class SkiaSurfaceView { void render(ANativeWindow *nativeWindow, int width, int height, float density); // 初步静态赋值 static ANativeWindow *nativeWindow; ...