[IMP] components: rename onRender->onWillRender, add onRendered

src/component/lifecycle_hooks.ts

@@ -40,7 +40,7 @@ export function onDestroyed(fn: () => Promise<void> | void | any) {
   node.destroyed.push(fn);
 }
 
-export function onRender(fn: () => void | any) {
+export function onWillRender(fn: () => void | any) {
   const node = getCurrent()!;
   const renderFn = node.renderFn;
   node.renderFn = () => {
@@ -49,6 +49,16 @@ export function onRender(fn: () => void | any) {
   };
 }
 
+export function onRendered(fn: () => void | any) {
+  const node = getCurrent()!;
+  const renderFn = node.renderFn;
+  node.renderFn = () => {
+    const result = renderFn();
+    fn();
+    return result;
+  };
+}
+
 export function onError(fn: (error: Error) => void | any) {
   const node = getCurrent()!;
   let handlers = nodeErrorHandlers.get(node);

src/index.ts

@@ -66,7 +66,8 @@ export {
   onWillUpdateProps,
   onWillPatch,
   onPatched,
-  onRender,
+  onWillRender,
+  onRendered,
   onDestroyed,
   onError,
 } from "./component/lifecycle_hooks";