Summary: public This patch adds an alternative UIImplementation based on an idea of creating UI hierarchy off-the-main-thread (everything but Views), flattening ReactShadowNode hierarchy and displaying it within a single View when possible. While NativeViewHierarchyOptimizer allows removing layout-only RCTViews, this allows removing RCTView, RCTText and RCTImage.
This is an initial bare-bones implementation that doesn't really draw anything, only lays out the shadow nodes. Followup diffs will add missing features.
Reviewed By: astreet
Differential Revision: D2564309
fb-gh-sync-id: 2dda4c8cfc2bac3eb39c5c15e97bd23a57550a1d
Summary: public NativeViewHierarchyManager.createView() takes int rootViewTag which is only used to resolve ThemedReactContext, but we already have it resolved before we enqueueCreateView, so we can just pass it directly. This makes mRootViewsContext tag -> to ThemedReactContext mapping unnecessary in NativeViewHierarchyManager. Makes the class simpler.
Reviewed By: kmagiera, astreet
Differential Revision: D2460280
fb-gh-sync-id: 68c503f4fb37ca0b1dcb2abc9e0c33a5225d1f6a
Summary: public UIManagerModule should not be creating UIImplementation. Instead, UIImplementation instance should be supplied to it to allow plugging in different implementations. No functional changes.
Reviewed By: astreet
Differential Revision: D2464632
fb-gh-sync-id: e7372977c93ceb7ef5e8658e5ee7e8e87f52d851
Summary: public
We're seeing related crashes. The diff has no tests, the perf tests weren't conclusive, and the person who'd be supporting it no longer is available to work on it. We can try this again later in a less rushed manner with proper perf testing.
Reviewed By: davidaurelio
Differential Revision: D2696615
fb-gh-sync-id: 3b6814ac12af19516146d5c42d2add8321b10db5
Summary: public This diff extracts all shadow hierarchy-specific logic from UIManagerModule into a UIImplementation class. This will later allow using in alternative UIImplementations in future.
Reviewed By: astreet
Differential Revision: D2457849
fb-gh-sync-id: 532128ce1d67b525cdf03794a5a29d7e9ed0ab90
