add navbar custom left & right view api

doric-js/lib/src/native/navbar.d.ts

@@ -1,8 +1,11 @@
 import { BridgeContext } from "../runtime/global";
 import { Color } from "../util/color";
+import { View } from "../ui/view";
 export declare function navbar(context: BridgeContext): {
     isHidden: () => Promise<boolean>;
     setHidden: (hidden: boolean) => Promise<any>;
     setTitle: (title: string) => Promise<any>;
     setBgColor: (color: Color) => Promise<any>;
+    setLeft: (view: View) => Promise<any>;
+    setRight: (view: View) => Promise<any>;
 };

doric-js/lib/src/native/navbar.js

@@ -24,5 +24,19 @@ export function navbar(context) {
                 color: color.toModel(),
             });
         },
+        setLeft: (view) => {
+            if (panel) {
+                panel.clearHeadViews("navbar_left");
+                panel.addHeadView("navbar_left", view);
+            }
+            return context.navbar.setLeft(view.toModel());
+        },
+        setRight: (view) => {
+            if (panel) {
+                panel.clearHeadViews("navbar_right");
+                panel.addHeadView("navbar_right", view);
+            }
+            return context.navbar.setRight(view.toModel());
+        }
     };
 }

doric-js/lib/src/ui/panel.js

@@ -123,7 +123,12 @@ export class Panel {
                 if (cur === this.__root__.viewId) {
                     return this.__root__;
                 }
-                return this.headviews.get(cur);
+                for (let map of this.headviews.values()) {
+                    if (map.has(cur)) {
+                        return map.get(cur);
+                    }
+                }
+                return undefined;
             }
             else {
                 if (Reflect.has(acc, "subviewById")) {