引擎接口重构，修改相关代码

example/ohos/entry/src/main/ets/entryability/EntryAbility.ets

@@ -67,18 +67,15 @@ export default class EntryAbility extends UIAbility implements FlutterBoostDeleg
 
   async onCreate(want: Want, launchParam: AbilityConstant.LaunchParam) {
     hilog.info(0x0000, TAG, '%{public}s', 'Ability onCreate');
-    FlutterManager.getInstance().pushUIAbility(this)
   }
 
   onDestroy(): void {
     hilog.info(0x0000, TAG, '%{public}s', 'Ability onDestroy');
-    FlutterManager.getInstance().popUIAbility(this)
   }
 
   // Main window is created, set main page for this ability
   onWindowStageCreate(windowStage: window.WindowStage): void {
     hilog.info(0x0000, TAG, '%{public}s', 'Ability onWindowStageCreate');
-    FlutterManager.getInstance().pushWindowStage(this, windowStage)
 
     let applicationInfo = ApplicationInfoLoader.load(this.context);
     const options: FlutterBoostSetupOptions = new FlutterBoostSetupOptionsBuilder()
@@ -124,7 +121,6 @@ export default class EntryAbility extends UIAbility implements FlutterBoostDeleg
   // Main window is destroyed, release UI related resources
   onWindowStageDestroy(): void {
     hilog.info(0x0000, TAG, '%{public}s', 'Ability onWindowStageDestroy');
-    FlutterManager.getInstance().popWindowStage(this)
   }
 
   // Ability has brought to foreground

example/ohos/entry/src/main/ets/pages/FlutterUIComponent.ets

@@ -1,3 +1,4 @@
+import { common } from '@kit.AbilityKit';
 import Curves from '@ohos.curves'
 import hilog from '@ohos.hilog';
 import { FlutterBoostEntry } from 'flutter_boost';
@@ -18,7 +19,7 @@ export struct FlutterUIComponent {
 
   async aboutToAppear() {
     hilog.info(0x0000, TAG, 'Component(#%{public}s) aboutToAppear===', this.uri);
-    this.flutterEntry = new FlutterBoostEntry(getContext(this),
+    this.flutterEntry = new FlutterBoostEntry(getContext(this) as common.UIAbilityContext,
                           //！！！这里的uri、params这两个属性的名字必须跟example中的保持一致 ！！！
                           { uri: this.uri, params: this.params },
                           false,

example/ohos/entry/src/main/ets/pages/FlutterUIDialog.ets

@@ -21,7 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-
+import { common } from '@kit.AbilityKit';
 import Curves from '@ohos.curves'
 import hilog from '@ohos.hilog';
 import { FlutterBoostEntry } from 'flutter_boost';
@@ -42,7 +42,8 @@ export struct FlutterUIDialog {
 
   async aboutToAppear() {
     hilog.info(0x0000, TAG, "aboutToAppear===");
-    this.flutterEntry = new FlutterBoostEntry(getContext(this), this.routerOptions, /*isDialog*/true);
+    let context = getContext(this) as common.UIAbilityContext;
+    this.flutterEntry = new FlutterBoostEntry(context, this.routerOptions, /*isDialog*/true);
     await this.flutterEntry.aboutToAppear();
     // The |aboutToAppear| method is called first,
     // followed by the |getFlutterView| method.

example/ohos/entry/src/main/ets/pages/FlutterUIPage.ets

@@ -21,7 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-
+import { common } from '@kit.AbilityKit';
 import hilog from '@ohos.hilog';
 import { FlutterBoostEntry } from 'flutter_boost';
 import { FlutterPage, FlutterView } from '@ohos/flutter_ohos';
@@ -43,7 +43,8 @@ export struct FlutterUIPage {
 
   async aboutToAppear() {
     hilog.info(0x0000, TAG, "aboutToAppear===");
-    this.flutterEntry = new FlutterBoostEntry(getContext(this), this.routerOptions, false, this.onPopCallback);
+    let context = getContext(this) as common.UIAbilityContext;
+    this.flutterEntry = new FlutterBoostEntry(context, this.routerOptions, false, this.onPopCallback);
     await this.flutterEntry.aboutToAppear();
     // The |aboutToAppear| method is called first,
     // followed by the |getFlutterView| method.

ohos/src/main/ets/components/containers/FlutterBoostEntry.ets

@@ -21,7 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
-
+import { common } from '@kit.AbilityKit';
 import { FlutterEntry, PlatformPlugin, } from '@ohos/flutter_ohos';
 import { FlutterViewContainer } from './FlutterViewContainer';
 import { LifecycleStage } from './Lifecycle';
@@ -39,14 +39,14 @@ export default class FlutterBoostEntry extends FlutterEntry implements FlutterVi
   private isAttached: boolean = false
   private platformPlugin?: PlatformPlugin | null
   private stage?: LifecycleStage;
-  private thisContext: Context;
+  private thisContext: common.UIAbilityContext;
   private routerOptions: ESObject;
   private isDialogMode: boolean;
   private routeStack: NavPathStack | null = null;
   private isStackPopping: boolean = false
   private onPopCallback?: (result: Record<string, Object>) => void;
 
-  constructor(context: Context, routerOptions: ESObject, isDialog?: boolean, onPop?: (result: Record<string, Object>) => void) {
+  constructor(context: common.UIAbilityContext, routerOptions: ESObject, isDialog?: boolean, onPop?: (result: Record<string, Object>) => void) {
     super(context);
 
     this.thisContext = context;
@@ -338,7 +338,6 @@ export default class FlutterBoostEntry extends FlutterEntry implements FlutterVi
     if (!this.platformPlugin) {
       this.platformPlugin = this.providePlatformPlugin(this.getFlutterEngine()!);
       this.platformPlugin?.initWindow();
-      this.platformPlugin?.setUIAbilityContext(this.getAbility().context);
     }
   }